INVERTER

FR-A701
INSTRUCTION MANUAL (Applied)

FR-A701
FR-A721-5.5K to 55K
FR-A741-5.5K to 55K

INVERTER
OUTLINE
1

WIRING
2

PRECAUTIONS FOR USE

OF THE INVERTER 3

INSTRUCTION MANUAL (Applied) PARAMETERS

4

PROTECTIVE FUNCTIONS
5
HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

PRECAUTIONS FOR
MAINTENANCE AND INSPECTION 6

SPECIFICATIONS
IB(NA)-0600337ENG-D (1103)MEE Printed in Japan Specifications subject to change without notice.
7
D
Thank you for choosing this Mitsubishi Inverter.
This Instruction Manual (Applied) provides instructions for advanced use of the FR-A701 series inverters.
Incorrect handling might cause an unexpected fault. Before using the inverter, always read this instruction manual and the instruction manual
[IB-0600331ENG] packed with the product carefully to use the equipment to its optimum.
2. Fire Prevention
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the CAUTION
inverter until you have read through the Instruction Manual z Inverter must be installed on a nonflammable wall without
and appended documents carefully and can use the holes (so that nobody touches the inverter heatsink on the
equipment correctly. Do not use this product until you have rear side, etc.). Mounting it to or near flammable material
a full knowledge of the equipment, safety information and can cause a fire.
z If the inverter has become faulty, the inverter power must
instructions.
be switched OFF. A continuous flow of large current could
In this Instruction Manual, the safety instruction levels are
cause a fire.
classified into "WARNING" and "CAUTION".
3.Injury Prevention
Incorrect handling may cause
WARNING hazardous conditions, resulting in CAUTION
death or severe injury. z The voltage applied to each terminal must be the ones
specified in the Instruction Manual. Otherwise burst,
Incorrect handling may cause
CAUTION hazardous conditions, resulting in
damage, etc. may occur.
z The cables must be connected to the correct terminals.
medium or slight injury, or may cause Otherwise burst, damage, etc. may occur.
only material damage. z Polarity must be correct. Otherwise burst, damage, etc.
may occur.
The CAUTION level may even lead to a serious
z While power is ON or for some time after power-OFF, do
consequence according to conditions. Both instruction
not touch the inverter as they will be extremely hot. Doing
levels must be followed because these are important to
so can cause burns.
personal safety.
1. Electric Shock Prevention 4. Additional Instructions
Also the following points must be noted to prevent an
WARNING accidental failure, injury, electric shock, etc.
z While power is ON or when the inverter is running, do not
open the front cover. Otherwise you may get an electric (1) Transportation and Mounting
shock. CAUTION
z Do not run the inverter with the front cover or wiring cover
z The product must be transported in correct method that
removed. Otherwise you may access the exposed high- corresponds to the weight. Failure to do so may lead to
voltage terminals or the charging part of the circuitry and injuries.
get an electric shock. z Do not stack the boxes containing inverters higher than
z Even if power is OFF, do not remove the front cover the number recommended.
except for wiring or periodic inspection. You may z The product must be installed to the position where
accidentally touch the charged inverter circuits and get an withstands the weight of the product according to the
electric shock. information in the Instruction Manual.
z Before wiring or inspection, power must be switched OFF. z Do not install or operate the inverter if it is damaged or
To confirm that, LED indication of the operation panel has parts missing.
must be checked. (It must be OFF.) Any person who is z When carrying the inverter, do not hold it by the front
involved in wiring or inspection shall wait for at least 10 cover or setting dial; it may fall off or fail.
minutes after the power supply has been switched OFF z Do not stand or rest heavy objects on the product.
and check that there are no residual voltage using a tester z The inverter mounting orientation must be correct.
or the like. The capacitor is charged with high voltage for z Foreign conductive objects must be prevented from
some time after power OFF, and it is dangerous. entering the inverter. That includes screws and metal
z This inverter must be earthed (grounded). Earthing fragments or other flammable substance such as oil.
z As the inverter is a precision instrument, do not drop or
(grounding) must conform to the requirements of national
subject it to impact.
and local safety regulations and electrical code (NEC section
z The inverter must be used under the following
250, IEC 536 class 1 and other applicable standards).
environment. Otherwise the inverter may be damaged.
A neutral-point earthed (grounded) power supply for 400V
Surrounding
class inverter in compliance with EN standard must be used. air -10°C to +50°C (non-freezing)
z Any person who is involved in wiring or inspection of this temperature
equipment shall be fully competent to do the work. Ambient
Environment

90%RH or less (non-condensing)

z The inverter must be installed before wiring. Otherwise humidity
you may get an electric shock or be injured. Storage
-20°C to +65°C *1
z Setting dial and key operations must be performed with temperature
dry hands to prevent an electric shock. Indoors (free from corrosive gas, flammable gas,
Atmosphere
oil mist, dust and dirt)
z Do not subject the cables to scratches, excessive stress,
heavy loads or pinching. Otherwise you may get an Maximum 1,000m above sea level for standard
Altitude/ operation.
electric shock. vibration 5.9m/s2 or less at 10 to 55Hz (directions of X, Y, Z
z Do not change the cooling fan while power is ON. It is axes)
dangerous to change the cooling fan while power is ON. ∗1 Temperature applicable for a short time, e.g. in transit.
z Do not touch the printed circuit board or handle the
cables with wet hands. Otherwise you may get an electric (2) Wiring
shock.
z When measuring the main circuit capacitor capacity, the CAUTION
DC voltage is applied to the motor for 1s at powering OFF. z Do not install a power factor correction capacitor or surge
Never touch the motor terminal, etc. right after powering suppressor/capacitor type filter on the inverter output
OFF to prevent an electric shock. side. These devices on the inverter output side may be
overheated or burn out.
z The connection orientation of the output cables U, V, W to
the motor affects the rotation direction of the motor.

A-1
(3) Trial run (5) Emergency stop
CAUTION CAUTION
z Before starting operation, each parameter must be z A safety backup such as an emergency brake must be
confirmed and adjusted. A failure to do so may cause provided to prevent hazardous condition to the machine
some machines to make unexpected motions. and equipment in case of inverter failure.
z When the breaker on the inverter input side trips, the
(4) Usage wiring must be checked for fault (short circuit), and
WARNING internal parts of the inverter for a damage, etc. The cause
z Any person must stay away from the equipment when the of the trip must be identified and removed before turning
retry function is set as it will restart suddenly after trip. ON the power of the breaker.
z When any protective function is activated, appropriate
z Since pressing key may not stop output depending corrective action must be taken, and the inverter must be
reset before resuming operation.
on the function setting status, separate circuit and switch
that make an emergency stop (power OFF, mechanical (6) Maintenance, inspection and parts replacement
brake operation for emergency stop, etc.) must be
provided. CAUTION
z OFF status of the start signal must be confirmed before z Do not carry out a megger (insulation resistance) test on
resetting the inverter fault. Resetting inverter alarm with the control circuit of the inverter. It will cause a failure.
the start signal ON restarts the motor suddenly.
(7) Disposal
z The inverter must be used for three-phase induction motors.
Connection of any other electrical equipment to the CAUTION
inverter output may damage the equipment. z The inverter must be treated as industrial waste.
z Performing pre-excitation (LX signal and X13 signal)
under torque control (Real sensorless vector control) may General instruction
start the motor running at a low speed even when the start
Many of the diagrams and drawings in this Instruction
command (STF or STR) is not input. The motor may also
Manual show the inverter without a cover or partially open
run at a low speed when the speed limit value = 0 with a
for explanation. Never operate the inverter in this manner.
start command input. It must be confirmed that the motor
The cover must be always reinstalled and the instruction in
running will not cause any safety problem before
this Instruction Manual must be followed when operating
performing pre-excitation.
the inverter.
z Do not modify the equipment.
z Do not perform parts removal which is not instructed in this
manual. Doing so may lead to fault or damage of the product.

CAUTION
z The electronic thermal relay function does not guarantee
protection of the motor from overheating. It is
recommended to install both an external thermal and PTC
thermistor for overheat protection.
z Do not use a magnetic contactor on the inverter input for
frequent starting/stopping of the inverter. Otherwise the
life of the inverter decreases.
z The effect of electromagnetic interference must be
reduced by using a noise filter or by other means.
Otherwise nearby electronic equipment may be affected.
z When driving a 400V class motor by the inverter, the
motor must be an insulation-enhanced motor or measures
must be taken to suppress surge voltage. Surge voltage
attributable to the wiring constants may occur at the
motor terminals, deteriorating the insulation of the motor.
z When parameter clear or all parameter clear is performed,
the required parameters must be set again before starting
operations because all parameters return to the initial value.
z The inverter can be easily set for high-speed operation.
Before changing its setting, the performances of the
motor and machine must be fully examined.
z Stop status cannot be hold by the inverter's brake
function. In addition to the inverter’s brake function, a
holding device must be installed to ensure safety.
z Before running an inverter which had been stored for a long
period, inspection and test operation must be performed.
z For prevention of damage due to static electricity, nearby
metal must be touched before touching this product to
eliminate static electricity from your body.

A-2
 CONTENTS
1 OUTLINE 1

1.1 Product checking and parts identification ........................................................ 2

CONTENTS
1.2 Inverter and peripheral devices .......................................................................... 3
1.2.1 Peripheral devices ..................................................................................................................... 4

1.3 Method of removal and reinstallation of the front cover.................................. 5

1.4 Installation of the inverter and enclosure design ............................................. 7

1.4.1 Inverter installation environment................................................................................................ 7
1.4.2 Cooling system types for inverter enclosure............................................................................ 10
1.4.3 Inverter placement ................................................................................................................... 11

2 WIRING 13

2.1 Terminal connection diagram ........................................................................... 14

2.2 Main circuit terminal specifications ................................................................. 15

2.2.1 Specification of main circuit terminal ....................................................................................... 15
2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring ......... 16
2.2.3 Cables and wiring length ......................................................................................................... 18
2.2.4 When connecting the control circuit and the main circuit separately
to the power supply ................................................................................................................. 21

2.3 Control circuit specifications ........................................................................... 22

2.3.1 Control circuit terminals ........................................................................................................... 22
2.3.2 Changing the control logic ....................................................................................................... 25
2.3.3 Control circuit terminal layout .................................................................................................. 27
2.3.4 Wiring instructions ................................................................................................................... 27
2.3.5 When connecting the operation panel using a connection cable ............................................ 28
2.3.6 RS-485 terminal block ............................................................................................................. 28
2.3.7 Communication operation........................................................................................................ 29

2.4 Connection of motor with encoder (vector control) ....................................... 30

3 PRECAUTIONS FOR USE OF THE INVERTER 37

3.1 EMC and leakage currents ................................................................................ 38

3.1.1 Leakage currents and countermeasures ................................................................................. 38
3.1.2 EMC measures ........................................................................................................................ 40
3.1.3 Power supply harmonics ......................................................................................................... 42
3.1.4 Harmonic suppression guideline ............................................................................................. 42

3.2 Power-off and magnetic contactor (MC) .......................................................... 44

3.3 Inverter-driven 400V class motor ..................................................................... 45

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 3.4 Precautions for use of the inverter .................................................................. 46

3.5 Failsafe of the system which uses the inverter .............................................. 48

4 PARAMETERS 51

4.1 Operation panel (FR-DU07) ............................................................................... 52

4.1.1 Parts of the operation panel (FR-DU07) .................................................................................. 52
4.1.2 Basic operation (factory setting) .............................................................................................. 53
4.1.3 Changing the parameter setting value..................................................................................... 54
4.1.4 Setting dial push ...................................................................................................................... 54

4.2 Parameter list ..................................................................................................... 55

4.2.1 Parameter list .......................................................................................................................... 55

4.3 Control mode..................................................................................................... 71

4.3.1 What is vector control? ........................................................................................................... 72
4.3.2 Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800) ................................................ 75

4.4 Speed control by Real sensorless vector control, vector control ............... 79
4.4.1 Setting procedure of Real sensorless vector control (speed control) .................................... 81
4.4.2 Setting procedure of vector control (speed control) ............................................................... 82
4.4.3 Torque limit level setting for speed control
(Pr. 22, Pr. 803, Pr. 810 to Pr. 817, Pr. 858, Pr. 868, Pr. 874) ............................................. 83
4.4.4 To perform high accuracy/fast response operation (gain adjustment of Real
sensorless vector control and vector control) (Pr. 818 to Pr. 821, Pr. 830,
Pr. 831, Pr. 880) .................................................................................................................. 88
4.4.5 Speed feed forward control, model adaptive speed control (Pr. 828, Pr. 877 to Pr. 881) ..... 95
4.4.6 Torque biases (Pr. 840 to Pr. 848) ........................................................................................ 97
4.4.7 Prevent the motor from overrunning (Pr. 285, Pr. 853, Pr. 873) .......................................... 100
4.4.8 Notch filter (Pr. 862, Pr. 863) ............................................................................................... 101

4.5 Torque control by Real sensorless vector control, vector control ............ 102
4.5.1 Torque control ...................................................................................................................... 102
4.5.2 Setting procedure of Real sensorless vector control (torque control) .................................. 106
4.5.3 Setting procedure of vector control (torque control) ............................................................ 107
4.5.4 Torque command (Pr. 803 to Pr. 806) .................................................................................. 108
4.5.5 Speed limit (Pr. 807 to Pr. 809) ........................................................................................... 110
4.5.6 Gain adjustment of torque control (Pr. 824, Pr. 825, Pr. 834, Pr. 835) ................................ 113

4.6 Position control by vector control ................................................................ 115

4.6.1 Position control .................................................................................................................... 115
4.6.2 Conditional position feed function by contact input (Pr. 419, Pr. 464 to Pr. 494) ................ 117
4.6.3 Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input ........................... 120

II
 4.6.4 Setting of the electronic gear (Pr. 420, Pr. 421, Pr. 424) .................................................... 122
4.6.5 Setting of positioning adjustment parameter (Pr. 426, Pr. 427) ........................................... 123
4.6.6 Gain adjustment of position control (Pr. 422, Pr. 423, Pr. 425) ........................................... 124

CONTENTS
4.6.7 Trouble shooting for when position control is not exercised normally ................................. 126

4.7 Adjustment of Real sensorless vector control, vector control................... 127

4.7.1 Speed detection filter and torque detection filter (Pr. 823, Pr. 827, Pr. 833, Pr. 837) ........ 127
4.7.2 Excitation ratio (Pr. 854) ..................................................................................................... 128

4.8 Adjust the output torque (current) of the motor .......................................... 129
4.8.1 Manual torque boost (Pr. 0, Pr. 46, Pr. 112)......................................................................... 129
4.8.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450,
Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800) ......................................................................... 131
4.8.3 Slip compensation (Pr. 245 to Pr. 247)................................................................................. 134
4.8.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 49, Pr. 66, Pr. 114, Pr. 115,
Pr. 148, Pr. 149, Pr. 154, Pr. 156, Pr. 157, Pr. 858, Pr. 868) ............................................... 135

4.9 Limiting the output frequency ....................................................................... 140

4.9.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18) ............................................................. 140
4.9.2 Avoiding mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36) ....................... 141

4.10 V/F pattern ...................................................................................................... 142

4.10.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47, Pr. 113) ....................................................... 142
4.10.2 Load pattern selection (Pr. 14) ............................................................................................ 144
4.10.3 Elevator mode (automatic acceleration/deceleration) (Pr. 61, Pr. 64, Pr. 292) ................... 146
4.10.4 Adjustable 5 points V/F (Pr. 71, Pr. 100 to Pr. 109) ............................................................. 147

4.11 Frequency setting by external terminals ...................................................... 148

4.11.1 Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239) ............... 148
4.11.2 Jog operation (Pr. 15, Pr. 16) ............................................................................................... 150
4.11.3 Input compensation of multi-speed and remote setting (Pr. 28) ........................................... 152
4.11.4 Remote setting function (Pr. 59) ........................................................................................... 152

4.12 Setting of acceleration/deceleration time and

acceleration/deceleration pattern.................................................................. 155
4.12.1 Setting of the acceleration and deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 21,
Pr. 44, Pr. 45, Pr. 110, Pr. 111) ............................................................................................ 155
4.12.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571) ......................................... 157
4.12.3 Acceleration/deceleration pattern (Pr. 29, Pr. 140 to Pr. 143, Pr. 380 to Pr. 383,
Pr. 516 to Pr. 519) ................................................................................................................ 158
4.12.4 Shortest acceleration/deceleration and optimum acceleration/deceleration
(automatic acceleration/deceleration) (Pr. 61 to Pr. 63, Pr. 292, Pr. 293) ............................ 162

4.13 Selection and protection of a motor ............................................................. 165

4.13.1 Motor protection from overheat (Electronic thermal relay function) (Pr. 9, Pr. 51) ............... 165

III
 4.13.2 Applied motor (Pr. 71, Pr. 450)............................................................................................. 169
4.13.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450,
Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860) ................................................................... 171
4.13.4 Online auto tuning (Pr. 95, Pr. 574) .................................................................................. 181

4.14 Motor brake and stop operation .................................................................... 185

4.14.1 DC injection brake and zero speed control, servo lock (LX signal, X13 signal,
Pr. 10 to Pr. 12, Pr. 802, Pr. 850) ......................................................................................... 185
4.14.2 Stop selection (Pr. 250) ........................................................................................................ 189
4.14.3 Stop-on contact control function (Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276) ........................... 190
4.14.4 Brake sequence function (Pr. 278 to Pr. 285, Pr. 292) ......................................................... 193
4.14.5 Orientation control (Pr. 350 to Pr. 366, Pr. 369, Pr. 393, Pr. 396 to Pr. 399) .................... 196

4.15 Function assignment of external terminal and control ............................... 207

4.15.1 Input terminal function selection (Pr. 178 to Pr. 189) ........................................................... 207
4.15.2 Inverter output shutoff signal (MRS signal, Pr. 17)............................................................... 210
4.15.3 Condition selection of function validity by the second function selection signal (RT) and
third function selection signal (X9) (RT signal, X9 signal, Pr. 155)....................................... 211
4.15.4 Start signal operation selection (STF, STR, STOP signal, Pr. 250) ..................................... 212
4.15.5 Magnetic flux decay output shutoff signal (X74 signal) ........................................................ 214
4.15.6 Output terminal function selection (Pr. 190 to Pr. 196)......................................................... 215
4.15.7 Detection of output frequency (SU, FU, FU2 , FU3, FB, FB2, FB3, LS signal,
Pr. 41 to Pr. 43, Pr. 50, Pr. 116, Pr. 865) ............................................................................. 222
4.15.8 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167) .............................................. 224
4.15.9 Detection of output torque (TU signal, Pr. 864) .................................................................... 225
4.15.10 Remote output function (REM signal, Pr. 495 to Pr. 497) .................................................... 226

4.16 Monitor display and monitor output signal .................................................. 227

4.16.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505, Pr. 811) .................................... 227
4.16.2 DU/PU, FM, AM terminal monitor display selection (Pr. 52, Pr. 54, Pr. 158, Pr. 170,
Pr. 171, Pr. 268, Pr. 563, Pr. 564, Pr. 891) .......................................................................... 229
4.16.3 Reference of the terminal FM (pulse train output) and AM (analog voltage
output) (Pr. 55, Pr. 56, Pr. 291, Pr. 866, Pr. 867) ................................................................. 236
4.16.4 Terminal FM, AM calibration (Calibration parameter C0 (Pr. 900), C1 (Pr. 901))................. 240

4.17 Operation selection at power failure and instantaneous power failure..... 243
4.17.1 Automatic restart after instantaneous power failure/flying start
(Pr. 57, Pr. 58, Pr. 162 to Pr. 165, Pr. 299, Pr. 611)............................................................. 243
4.17.2 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266, Pr. 294 ) .................... 247

4.18 Operation setting at fault occurrence ........................................................... 250

4.18.1 Retry function (Pr. 65, Pr. 67 to Pr. 69) ................................................................................ 250
4.18.2 Fault code output selection (Pr. 76)...................................................................................... 252
4.18.3 Input/output phase loss protection selection (Pr. 251, Pr. 872) ............................................ 253

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 4.18.4 Overspeed detection (Pr. 374) ............................................................................................. 253
4.18.5 Encoder signal loss detection (Pr. 376) ............................................................................... 253
4.18.6 Fault definition (Pr. 875) ....................................................................................................... 254

CONTENTS
4.19 Energy saving operation and energy saving monitor ................................. 255
4.19.1 Energy saving control (Pr. 60) ............................................................................................. 255
4.19.2 Energy saving monitor (Pr. 891 to Pr. 899) .......................................................................... 256

4.20 Motor noise, EMI measures ........................................................................... 261

4.20.1 PWM carrier frequency and Soft-PWM control (Pr. 72, Pr. 240) .......................................... 261

4.21 Frequency/torque setting by analog input (terminal 1, 2, 4) ....................... 262

4.21.1 Function assignment of analog input terminal (Pr. 858, Pr. 868) ......................................... 262
4.21.2 Analog input selection (Pr. 73, Pr. 267)................................................................................ 263
4.21.3 Analog input compensation (Pr. 73, Pr. 242, Pr. 243, Pr. 252, Pr. 253) ............................... 267
4.21.4 Response level of analog input and noise elimination
(Pr. 74, Pr. 822, Pr. 826, Pr. 832, Pr. 836, Pr. 849).............................................................. 269
4.21.5 Bias and gain of frequency setting voltage (current)
(Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905), C12(Pr. 917) to C15(Pr. 918)) ........ 271
4.21.6 Bias and gain of torque (magnetic flux) setting voltage (current)
(Pr. 241, C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) to C41 (Pr. 933)) ........................... 277

4.22 Misoperation prevention and parameter setting restriction ....................... 282

4.22.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75) ............................... 282
4.22.2 Parameter write selection (Pr. 77) ........................................................................................ 284
4.22.3 Reverse rotation prevention selection (Pr. 78) ..................................................................... 285
4.22.4 Display of applied parameters and user group function (Pr. 160, Pr. 172 to Pr. 174) .......... 285
4.22.5 Password function (Pr. 296, Pr. 297).................................................................................... 287

4.23 Selection of operation mode and operation location .................................. 290

4.23.1 Operation mode selection (Pr. 79)........................................................................................ 290
4.23.2 Operation mode at power on (Pr. 79, Pr. 340) ..................................................................... 298
4.23.3 Start command source and frequency command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551).............................................. 299

4.24 Communication operation and setting ......................................................... 305

4.24.1 Wiring and configuration of PU connector ............................................................................ 305
4.24.2 Wiring and arrangement of RS-485 terminals ...................................................................... 307
4.24.3 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 124, Pr. 331 to Pr. 337, Pr. 341, Pr. 549)...................................................... 310
4.24.4 Communication EEPROM write selection (Pr. 342) ............................................................. 311
4.24.5 Mitsubishi inverter protocol (computer link communication) ................................................. 312
4.24.6 Modbus-RTU communication specifications (Pr. 331, Pr. 332, Pr. 334, Pr. 343,
Pr. 539, Pr. 549) ................................................................................................................... 324
4.24.7 USB communication (Pr. 547, Pr. 548) ................................................................................ 337

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 4.25 Special operation and frequency control ..................................................... 338
4.25.1 PID control (Pr. 127 to Pr. 134, Pr. 575 to Pr. 577) .............................................................. 338
4.25.2 Bypass-inverter switchover function (Pr. 57, Pr. 58, Pr. 135 to Pr. 139, Pr. 159)................. 346
4.25.3 Load torque high speed frequency control (Pr. 4, Pr. 5, Pr. 270 to Pr. 274) ........................ 351
4.25.4 Droop control (Pr. 286 to Pr. 288) ..................................................................................... 354
4.25.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386)..................................... 356
4.25.6 Encoder feedback control (Pr. 144, Pr. 285, Pr. 359, Pr. 367 to Pr. 369) ........................... 359
4.25.7 Regeneration avoidance function (Pr. 665, Pr. 882 to Pr. 886) ............................................ 361

4.26 Useful functions .............................................................................................. 363

4.26.1 Cooling fan operation selection (Pr. 244) ............................................................................. 363
4.26.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259)................................................... 364
4.26.3 Maintenance timer alarm (Pr. 503, Pr. 504) ......................................................................... 367
4.26.4 Current average value monitor signal (Pr. 555 to Pr. 557) ................................................... 368
4.26.5 Free parameter (Pr. 888, Pr. 889) ........................................................................................ 370

4.27 Setting of the parameter unit and operation panel ...................................... 371
4.27.1 PU display language selection (Pr. 145) .............................................................................. 371
4.27.2 Operation panel frequency setting/key lock selection (Pr. 161) ........................................... 371
4.27.3 Buzzer control (Pr. 990)........................................................................................................ 373
4.27.4 PU contrast adjustment (Pr. 991) ......................................................................................... 373

4.28 Parameter clear ............................................................................................... 374

4.29 All parameter clear.......................................................................................... 375

4.30 Parameter copy and parameter verification ................................................. 376

4.30.1 Parameter copy .................................................................................................................... 376
4.30.2 Parameter verification........................................................................................................... 377

4.31 Check and clear of the faults history ............................................................ 378

5 PROTECTIVE FUNCTIONS 381

5.1 Reset method of protective function ............................................................. 382

5.2 List of fault or alarm display ........................................................................... 383

5.3 Causes and corrective actions ....................................................................... 384

5.4 Correspondences between digital and actual characters ........................... 399

5.5 Check first when you have a trouble ............................................................. 400

5.5.1 Motor does not start............................................................................................................... 400
5.5.2 Motor or machine is making abnormal acoustic noise........................................................... 402
5.5.3 Inverter generates abnormal noise........................................................................................ 402

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 5.5.4 Motor generates heat abnormally .......................................................................................... 403
5.5.5 Motor rotates in the opposite direction .................................................................................. 403
5.5.6 Speed greatly differs from the setting .................................................................................... 403

CONTENTS
5.5.7 Acceleration/deceleration is not smooth ................................................................................ 404
5.5.8 Motor current is too large....................................................................................................... 404
5.5.9 Speed does not accelerate .................................................................................................... 405
5.5.10 Motor and machine vibrate .................................................................................................... 405
5.5.11 Speed varies during operation............................................................................................... 406
5.5.12 Operation mode is not changed properly .............................................................................. 407
5.5.13 Operation panel (FR-DU07) display is not operating............................................................. 407
5.5.14 Power lamp is not lit .............................................................................................................. 407
5.5.15 Unable to write parameter setting.......................................................................................... 407

6 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 409

6.1 Inspection item................................................................................................. 410

6.1.1 Daily inspection ..................................................................................................................... 410
6.1.2 Periodic inspection ................................................................................................................ 410
6.1.3 Daily and periodic inspection ................................................................................................. 411
6.1.4 Display of the life of the inverter parts ................................................................................... 412
6.1.5 Checking the inverter and converter modules ....................................................................... 412
6.1.6 Cleaning ................................................................................................................................ 413
6.1.7 Replacement of parts ............................................................................................................ 413

6.2 Measurement of main circuit voltages, currents and powers ..................... 416
6.2.1 Measurement of powers ........................................................................................................ 418
6.2.2 Measurement of voltages and use of PT ............................................................................... 418
6.2.3 Measurement of currents....................................................................................................... 419
6.2.4 Use of CT and transducer ..................................................................................................... 419
6.2.5 Measurement of inverter input power factor .......................................................................... 419
6.2.6 Measurement of converter output voltage (across terminals P/+ and N/-) ............................ 420
6.2.7 Measurement of inverter output frequency ............................................................................ 420
6.2.8 Insulation resistance test using megger ................................................................................ 420
6.2.9 Pressure test ......................................................................................................................... 420

7 SPECIFICATIONS 421

7.1 Rating................................................................................................................ 422

7.1.1 Inverter rating ........................................................................................................................ 422
7.1.2 Motor rating ........................................................................................................................... 423

7.2 Common specifications .................................................................................. 424

VII
 7.3 Outline dimension drawings ........................................................................... 425
7.3.1 Inverter outline dimension drawings ...................................................................................... 425
7.3.2 Dedicated motor outline dimension drawings ........................................................................ 430

7.4 Installation of the heatsink portion outside the enclosure for use ............. 434
7.4.1 Protrusion of heatsink ............................................................................................................ 434

APPENDICES 437

Appendix 1 Main differences and compatibilities with the FR-A700 series ...... 438

Appendix 2 Control mode-based parameter (function) correspondence

table and instruction code list .......................................................... 439

Appendix 3 Specification change ......................................................................... 456

Appendix 3-1 SERIAL number check .............................................................................................. 456
Appendix 3-2 Changed functions .................................................................................................... 456

VIII
 1 OUTLINE

This chapter describes the basic "OUTLINE" for use of this

product.
Always read the instructions before using the equipment.

1.1 Product checking and parts identification................2

1
1.2 Inverter and peripheral devices ...............................3
1.3 Method of removal and reinstallation of the front
cover .......................................................................5
1.4 Installation of the inverter and enclosure design .....7
2

<Abbreviations>
DU ..........................................Operation panel (FR-DU07) 3
PU................................................Operation panel (FR-DU07) and parameter unit (FR-PU04/
FR-PU07)
Inverter ...................................Mitsubishi inverter FR-A701 series
FR-A701 .................................Mitsubishi inverter FR-A701 series
Pr. ...........................................Parameter Number (Number assigned to function)
PU operation...........................Operation using the PU (FR-DU07/FR-PU04/FR-PU07). 4
External operation ..................Operation using the control circuit signals
Combined operation ...............Combined operation using the PU (FR-DU07/FR-PU04/
FR-PU07) and external operation.
Mitsubishi standard motor ......SF-JR
Mitsubishi constant-torque motor.SF-HRCA
Vector dedicated motor...........SF-V5RU 5
<Trademarks>
• Microsoft and Visual C++ are registered trademarks of Microsoft Corporation in the
United States and/or other countries.
• LONWORKS® is a registered trademark of Echelon Corporation in the U.S.A and other
countries. 6
• DeviceNet ® is a registered trademark of ODVA (Open DeviceNet Vender Association,
Inc.).
• Other company and product names herein are the trademarks and registered
trademarks of their respective owners.

7
1
Product checking and parts identification

1.1 Product checking and parts identification

Unpack the inverter and check the capacity plate on the front cover and the rating plate on the inverter side face to
ensure that the product agrees with your order and the inverter is intact.

• Inverter Model
Cooling fan (Refer to page 414)
FR - A721 - 5.5 K
Symbol Voltage Class Represents inverter
A721 Three-phase 200V class capacity (kW)
A741 Three-phase 400V class
Fan cover Fan block
(Refer to page 414) (Refer to page 414)

USB connector
(Refer to page 337)
PU connector
(Refer to page 24)

Front cover RS-485 terminals

(Refer to page 307)
(Refer to page 5)
Connector for plug-in
Operation panel option connection
(FR-DU07) (Refer to page 52) (Refer to the Instruction Manual
of options.)
There are three connection
connectors and they are called
Power lamp connector 1, connector 2, and
Lit when the control circuit connector 3 from the top.
(R1/L11, S1/L21) is supplied
with power. Voltage/current input switch
Alarm lamp (Refer to page 14, 263)
Lit when the inverter is AU/PTC switchover switch
(Refer to page 168)
in the alarm status
(major fault).
Control circuit
terminal block (Refer to page 22)
Main circuit
Capacity plate
terminal block (Refer to page 15)
Charge lamp
Capacity plate FR-A721-5.5K Lit when power is supplied
to the main circuit (Refer to page 15)
Inverter Model Serial number
Rating plate

• Accessory Rating plate

Inverter model FR-A721-5.5K
· Eyebolt for hanging the inverter
Applied motor
Capacity Eyebolt size Quantity capacity
11K, 15K M8 2 Input rating
18.5K to 30K M10 2 Output rating
Serial number
37K to 55K M12 2
* The 5.5K and 7.5K are not provided with eyebolts.

REMARKS
For removal and reinstallation of covers, refer to page 5.
Harmonic suppression guideline (when inverters are used in Japan)
All models of general-purpose inverters used by specific consumers are covered by "Harmonic suppression guideline for consumers
who receive high voltage or special high voltage". (For details, refer to page 42.)

2
 Inverter and peripheral devices

1.2 Inverter and peripheral devices

Three-phase AC power supply USB connector
Use within the permissible power supply A personal computer and an inverter
specifications of the inverter. can be connected with a
(Refer to page 422) USB (Ver1. 1) cable.
(Refer to page 337)

Moulded case circuit breaker (MCCB) or

earth leakage circuit breaker (ELB), fuse
The breaker must be selected carefully
since an in-rush current flows in the inverter
at power on. Inverter (FR-A701)
The life of the inverter is
(Refer to page 4) influenced by surrounding air
temperature. The surrounding
air temperature should be as low
as possible within the
permissible range. This must be
noted especially when the
inverter is installed in an
enclosure. (Refer to page 7)
Magnetic contactor (MC)
Wrong wiring might lead to
Install the magnetic contactor to ensure damage of the inverter. The
safety. Do not use this magnetic contactor control signal lines must be kept
to start and stop the inverter. Doing so will fully away from the main circuit
cause the inverter life to be shorten. to protect them from noise.(Refer
(Refer to page 44) to page 14)

EMC filter (ferrite core)

(FR-BLF)
1
Install a noise filter to reduce the electromagnetic
noise generated from the inverter.

OUTLINE
Effective in the range from about 1MHz to 10MHz.
When more wires are passed through, a more R/L1 S/L2 T/L3
effective result can be obtained. The total number of EMC filter (ferrite core)
U V W
(FR-BLF)
wires passed through should be 4T or more.
Earth Install a noise filter to
(Ground) reduce the
EMC filter (capacitor) electromagnetic noise
(FR-BIF) generated from the
Reduces the radio noise. inverter.
Effective in the range
from about 1MHz to
10MHz. A wire should be
wound four turns at a
maximum.
Motor

Devices connected to the output

Do not install a power factor correction capacitor, surge suppressor or radio noise filter on the output
side of the inverter. When installing a moulded case circuit breaker on the output side of the inverter,
contact each manufacturer for selection of the moulded case circuit breaker.

Earth (Ground)
To prevent an electric shock, always earth (ground) the motor and inverter.

: Install these options as required. Earth (Ground)

CAUTION
· Do not install a power factor correction capacitor, surge suppressor or radio noise filter on the inverter output side. This will cause the
inverter to trip or the capacitor, and surge suppressor to be damaged. If any of the above devices are connected, immediately remove them.
· This inverter has a built-in AC reactor (FR-HAL) and a circuit type specified in Harmonic suppression guideline in Japan is three-
phase bridge (capacitor smoothed) and with reactor (AC side). (Refer to page 42) Do not use an AC reactor (FR-HAL) of a stand-
alone option except following purpose. (Note that overload protection of the converter may operate when a thyristor load is
connected in the power supply system. To prevent this, always install an optional stand-alone AC reactor (FR-HAL).) A DC
reactor (FR-HEL) can not be connected to the inverter.
· Electromagnetic wave interference
The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the communication
devices (such as AM radios) used near the inverter. In this case, connecting a capacitor type filter will reduce electromagnetic
wave interference.
· Refer to the instruction manual of each option and peripheral devices for details of peripheral devices.

3
Inverter and peripheral devices

1.2.1 Peripheral devices

Check the inverter model of the inverter you purchased. Appropriate peripheral devices must be selected according to
the capacity. Refer to the following list and prepare appropriate peripheral devices:
200V class
Motor Output
Applicable Inverter Model Breaker Selection*2 Input Side Magnetic Contactor*3
(kW)*1
5.5 FR-A721-5.5K 40A S-N20, N21
7.5 FR-A721-7.5K 50A S-N25
11 FR-A721-11K 75A S-N35
15 FR-A721-15K 100A S-N50
18.5 FR-A721-18.5K 125A S-N50
22 FR-A721-22K 150A S-N65
30 FR-A721-30K 175A S-N80
37 FR-A721-37K 225A S-N125
45 FR-A721-45K 300A S-N150
55 FR-A721-55K 350A S-N180

400V class
Motor Output
Applicable Inverter Model Breaker Selection*2 Input Side Magnetic Contactor*3
(kW)*1
5.5 FR-A741-5.5K 20A S-N11, N12
7.5 FR-A741-7.5K 30A S-N20, N21
11 FR-A741-11K 40A S-N20, N21
15 FR-A741-15K 50A S-N20, N21
18.5 FR-A741-18.5K 60A S-N25
22 FR-A741-22K 75A S-N25
30 FR-A741-30K 100A S-N50
37 FR-A741-37K 125A S-N50
45 FR-A741-45K 150A S-N65
55 FR-A741-55K 175A S-N80

*1 Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 200VAC/400VAC 50Hz.
*2 Select the MCCB according to the inverter power supply capacity.
Install one MCCB per inverter. MCCB INV IM
For the use in the United States or Canada, provide the appropriate UL and cUL listed Class RK5 or Class T
type fuse or UL 489 molded case circuit breaker (MCCB) that is suitable for branch circuit protection. MCCB INV IM
(Refer to instruction manual (basic).)
*3 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC
with class AC-3 rated current for the motor rated current.

CAUTION
· When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the
inverter model and cable according to the motor output.
· When the breaker on the inverter input side trips, check for the wiring fault (short circuit), damage to internal parts of the
inverter, etc. Identify the cause of the trip, then remove the cause and power on the breaker.

4
 Method of removal and reinstallation of
the front cover

1.3 Method of removal and reinstallation of the front cover

•Removal of the operation panel
1) Loosen the two screws on the operation panel. 2) Push the left and right hooks of the operation panel
(These screws cannot be removed.) and pull the operation panel toward you to remove.

When reinstalling the operation panel, insert it straight to reinstall securely and tighten the fixed screws of the
operation panel.

•Removal of the front cover

1) Remove installation screws on the front cover 2) Loosen the installation screws of the
1 to remove the front cover 1. front cover 2.

OUTLINE
Front cover 1

Front cover 2

3) Pull the front cover 2 toward you to remove by pushing an installation hook on the right side
using left fixed hooks as supports.

Installation hook

5
 Method of removal and reinstallation of
the front cover

•Reinstallation of the front cover

1) Insert the two fixed hooks on the left side of the 2) Using the fixed hooks as supports, securely press the
front cover 2 into the sockets of the inverter. front cover 2 against the inverter.
(Although installation can be done with the operation
panel mounted, make sure that a connector is
securely fixed.)

Front cover 2 Front cover 2

3) Fix the front cover 2 with the installation screws. 4) Fix the front cover 1 with the installation
screws.

Front cover 1
Front cover 2

REMARKS
· For the 55K, the front cover 1 is separated into two parts.

CAUTION
1. Fully make sure that the front cover has been reinstalled securely. Always tighten the installation screws of the front cover.
2. The same serial number is printed on the capacity plate of the front cover and the rating plate of the inverter. Before
reinstalling the front cover, check the serial numbers to ensure that the cover removed is reinstalled to the inverter from where
it was removed.

6
 Installation of the inverter and enclosure
design

1.4 Installation of the inverter and enclosure design

When an inverter enclosure is to be designed and manufactured, heat generated by contained equipment, etc., the
environment of an operating place, and others must be fully considered to determine the enclosure structure, size and
equipment layout. The inverter unit uses many semiconductor devices. To ensure higher reliability and long period of
operation, operate the inverter in the ambient environment that completely satisfies the equipment specifications.

1.4.1 Inverter installation environment

The inverter consists of precision mechanical and electronic parts. Never install or handle it in any of the following
conditions as doing so could cause an operation fault or failure.

Vibration (5.9m/s2 or more

Direct sunlight at 10 to 55Hz (directions of High temperature, Horizontal placement
X, Y, Z axes)) high humidity

Vertical mounting Oil mist, flammable

(When installing two or Transportation by gas, corrosive gas,
holding the front cover fluff, dust, etc. Mounting to
more inverters, install
combustible material
them in parallel.)
1
As the inverter installation environment should satisfy the standard specifications indicated in the following table,
operation in any place that does not meet these conditions not only deteriorates the performance and life of the

OUTLINE
inverter, but also causes a failure. Refer to the following points and take adequate measures.
Environmental standard specifications of inverter
Item Description
Surrounding air
-10°C to +50°C (non-freezing)
temperature
Ambient humidity 90% RH maximum (non-condensing)
Atmosphere Free from corrosive and explosive gases, dust and dirt
Maximum Altitude 1,000m or less
Vibration 5.9m/s2 or less at 10 to 55Hz (directions of X, Y, Z axes)

7
Installation of the inverter and enclosure
design

(1) Temperature
The permissible surrounding air temperature of the inverter is between -10°C and +50°C. Always operate the inverter
within this temperature range. Operation outside this range will considerably shorten the service lives of the
semiconductors, parts, capacitors and others. Take the following measures so that the surrounding air temperature of
the inverter falls within the specified range.
1) Measures against high temperature
• Use a forced ventilation system or similar cooling system. (Refer to page 10.)
• Install the enclosure in an air-conditioned electrical chamber.
• Block direct sunlight.
• Provide a shield or similar plate to avoid direct exposure to the radiated heat and wind of a heat source.
• Ventilate the area around the enclosure well.
2) Measures against low temperature
• Provide a space heater in the enclosure.
• Do not power off the inverter. (Keep the start signal of the inverter off.)
3) Sudden temperature changes
• Select an installation place where temperature does not change suddenly.
• Avoid installing the inverter near the air outlet of an air conditioner.
• If temperature changes are caused by opening/closing of a door, install the inverter away from the door.

(2) Humidity
Normally operate the inverter within the 45 to 90% range of the ambient humidity. Too high humidity will pose problems
of reduced insulation and metal corrosion. On the other hand, too low humidity may produce a spatial electrical
breakdown. The insulation distance specified in JEM1103 "Control Equipment Insulator" is defined as humidity 45 to
85%.
1) Measures against high humidity
• Make the enclosure enclosed, and provide it with a hygroscopic agent.
• Take dry air into the enclosure from outside.
• Provide a space heater in the enclosure.
2) Measures against low humidity
What is important in fitting or inspection of the unit in this status is to discharge your body (static electricity)
beforehand and keep your body from contact with the parts and patterns, besides blowing air of proper humidity into
the enclosure from outside.
3) Measures against condensation
Condensation may occur if frequent operation stops change the in-enclosure temperature suddenly or if the outside-
air temperature changes suddenly.
Condensation causes such faults as reduced insulation and corrosion.
• Take the measures against high humidity in 1).
• Do not power off the inverter. (Keep the start signal of the inverter off.)

(3) Dust, dirt, oil mist

Dust and dirt will cause such faults as poor contact of contact points, reduced insulation or reduced cooling effect due
to moisture absorption of accumulated dust and dirt, and in-enclosure temperature rise due to clogged filter.
In the atmosphere where conductive powder floats, dust and dirt will cause such faults as malfunction, deteriorated
insulation and short circuit in a short time.
Since oil mist will cause similar conditions, it is necessary to take adequate measures.

Countermeasures
• Place in a totally enclosed enclosure.
Take measures if the in-enclosure temperature rises. (Refer to page 10.)
• Purge air.
Pump clean air from outside to make the in-enclosure pressure higher than the outside-air pressure.

8
 Installation of the inverter and enclosure
design

(4) Corrosive gas, salt damage

If the inverter is exposed to corrosive gas or to salt near a beach, the printed board patterns and parts will corrode or
the relays and switches will result in poor contact.
In such places, take the measures given in Section (3).

(5) Explosive, flammable gases

As the inverter is non-explosion proof, it must be contained in an explosion proof enclosure.
In places where explosion may be caused by explosive gas, dust or dirt, an enclosure cannot be used unless it
structurally complies with the guidelines and has passed the specified tests. This makes the enclosure itself expensive
(including the test charges).
The best way is to avoid installation in such places and install the inverter in a non-hazardous place.

(6) Highland
Use the inverter at the altitude of within 1000m.
If it is used at a higher place, it is likely that thin air will reduce the cooling effect and low air pressure will deteriorate
dielectric strength.

(7) Vibration, impact

The vibration resistance of the inverter is up to 5.9m/s2 at 10 to 55Hz frequency (directions of X, Y, Z axes) and 1mm
amplitude.
Vibration or impact, if less than the specified value, applied for a long time may make the mechanism loose or cause
poor contact to the connectors.
Especially when impact is imposed repeatedly, caution must be taken as the part pins are likely to break. 1

Countermeasures

OUTLINE
• Provide the enclosure with rubber vibration isolators.
• Strengthen the structure to prevent the enclosure from resonance.
• Install the enclosure away from sources of vibration.

9
Installation of the inverter and enclosure
design

1.4.2 Cooling system types for inverter enclosure

From the enclosure that contains the inverter, the heat of the inverter and other equipment (transformers, lamps,
resistors, etc.) and the incoming heat such as direct sunlight must be dissipated to keep the in-enclosure temperature
lower than the permissible temperatures of the in-enclosure equipment including the inverter.
The cooling systems are classified as follows in terms of the cooling calculation method.
1) Cooling by natural heat dissipation from the enclosure surface (Totally enclosed type)
2) Cooling by heat sink (Aluminum heatsink, etc.)
3) Cooling by ventilation (Forced ventilation type, pipe ventilation type)
4) Cooling by heat exchanger or cooler (Heat pipe, cooler, etc.)

Cooling System Enclosure Structure Comment

Low in cost and generally used, but the enclosure size

Natural ventilation
increases as the inverter capacity increases. For
(Enclosed, open type) INV
relatively small capacities.

Natural
cooling
Being a totally enclosed type, the most appropriate for
Natural ventilation (Totally hostile environment having dust, dirt, oil mist, etc. The
enclosed type) enclosure size increases depending on the inverter
INV
capacity.

Heatsink Having restrictions on the heatsink mounting position

Heatsink cooling INV and area, and designed for relative small capacities.

For general indoor installation. Appropriate for enclosure

Forced Forced ventilation
INV downsizing and cost reduction, and often used.
cooling

Heat
pipe
Heat pipe Totally enclosed type for enclosure downsizing.
INV

10
 Installation of the inverter and enclosure
design

1.4.3 Inverter placement

(1) Installation of the Inverter
Installation on the enclosure

CAUTION
⋅ When encasing multiple inverters, install them in parallel as a cooling measure.
⋅ Install the inverter vertically.

OUTLINE
Vertical

Refer to the cle

arances below.

(2) Clearances around the inverter

To ensure ease of heat dissipation and maintenance, leave at least the shown clearances around the inverter. At least the
following clearances are required under the inverter as a wiring space, and above the inverter as a heat dissipation space.

Surrounding air temperature and humidity Clearances (front) Clearances (side)

Measurement
position 10cm or more
5cm Inverter 5cm 5cm 5cm
or more or more

Measurement 5cm 5cm Inverter

position or
more
Temperature: -10°C to 50°C
10cm or more
Ambient humidity: 90% RH
maximum
Leave enough clearances and take
cooling measures.

REMARKS
For replacing the cooling fan, 30cm of space is necessary in front of the inverter. Refer to page 414 for fan replacement.

(3) Inverter mounting orientation

Mount the inverter on a wall as specified. Do not mount it horizontally or any other way.

11
Installation of the inverter and enclosure
design

(4) Above the inverter

Heat is blown up from inside the inverter by the small fan built in the unit. Any equipment placed above the inverter
should be heat resistant.

(5) Arrangement of multiple inverters

When multiple inverters are placed in the same enclosure, generally arrange them horizontally as shown in the figure
below (a). When it is inevitable to arrange them vertically to minimize space, take such measures as to provide guides
since heat from the bottom inverters can increase the temperatures in the top inverters, causing inverter failures.

When mounting multiple inverters, fully take caution not to make the surrounding air temperature of the inverter higher
than the permissible value by providing ventilation and increasing the enclosure size.

Inverter Inverter Inverter Inverter

Guide Guide Guide

Inverter Inverter

Enclosure Enclosure
(a) Horizontal arrangement (b) Vertical arrangement

Arrangement of multiple inverters

(6) Placement of ventilation fan and inverter

Heat generated in the inverter is blown up from the bottom of the unit as warm air by the cooling fan. When installing a
ventilation fan for that heat, determine the place of ventilation fan installation after fully considering an air flow. (Air
passes through areas of low resistance. Make an airway and airflow plates to expose the inverter to cool air.)

Inverter Inverter

<Good example> <Bad example>

Placement of ventilation fan and inverter

12
 2 WIRING

This chapter describes the basic "WIRING" for use of this

product.
Always read the instructions before using the equipment.

2.1 Terminal connection diagram ..................................14

1
2.2 Main circuit terminal specifications..........................15
2.3 Control circuit specifications....................................22
2.4 Connection of motor with encoder (vector control) .30

7
13
Terminal connection diagram

2.1 Terminal connection diagram

Sink logic
Main circuit terminal P/+ N/-
Control circuit terminal *6 *6
MCCB MC
R/L1 Inrush current
Three-phase AC S/L2 limit circuit
power supply U Motor
T/L3
V
IM
R1/L11 W
Jumper
*1 S1/L21 Earth (Ground)
*1. To supply power to the
control circuit separately, Main circuit *6. Do not connect any options to P/+ and
remove the jumper across Earth N/-.
R1/L11 and S1/L21. (Ground) Control circuit
Control input signals (No voltage input allowed) C1 Relay output
Forward STF
Terminal functions vary with rotation
the input terminal B1 Terminal functions
start Relay output 1 vary with the output
assignment (Pr. 178 to Pr. 189) Reverse STR
rotation (Fault output) terminal assignment
(Refer to page 207) A1
start STOP (Pr. 195, Pr. 196)
Start self- (Refer to page 215)
holding selection C2
RH
High speed
B2
Multi-speed Middle RM Relay output 2
selection speed A2
RL
*2. JOG terminal can be used
Low speed
as pulse train input terminal. Open collector output
Use Pr. 291 to select JOG *2 RUN
JOG/pulse. Jog operation Running
Terminal functions
RT SU
Second function selection Up to frequency vary with the output
terminal assignment
*3. AU terminal can be MRS IPF Instantaneous (Pr. 190 to Pr. 194)
Output stop power failure
used as PTC input (Refer to page 215)
terminal. RES *3 OL
Reset Overload
AU
Terminal 4 input selection AU FU
(Current input selection) Frequency detection
CS PTC
SOURCE

Selection of automatic restart SE Open collector output common

after instantaneous
SINK

power failure SD Sink/source common

Contact input common 24V
*7. It is not necessary *8. FM terminal
PC when calibrating the can be used
24VDC power supply indicator from the for pulse train
PU
(Common for external power supply transistor) operation panel. output of open
*4 Voltage/current connector collector
input switch output using
Frequency setting signal (Analog) 4 2 Pr.291.
10E(+10V)
ON USB +
10(+5V) OFF - Indicator
3 connector
Frequency setting FM (Frequency meter, etc.)
2 0 to 5VDC (Initial value) *8
potentiometer 2 0 to 10VDC selectable Calibration Moving-coil type
1/2W1kΩ 0 to 20mADC
*4 SD resistor *7
5 1mA full-scale
*5 1
(Analog common)
*4. Terminal input specifications AM (+) Analog signal output
can be changed by analog
5 (0 to 10VDC)
input specifications 0 to ±10VDC (Initial value) (-)
switchover (Pr. 73, Pr. 267). Auxiliary (+) 1
Set the voltage/current input input (-) 0 to ±5VDC selectable *4
switch in the OFF position to TXD+ RS-485 terminals
Terminal 4 to 20mADC (Initial value)
select voltage input (0 to 5V/0
4 input (+) 4 0 to 5VDC selectable *4 TXD- Data transmission
to10V) and ON to select
current input (4 to 20mA).
(Current (-) 0 to 10VDC
(Refer to page 263)
input) RXD+
Connector RXD- Data reception
for plug-in option
Option connector 1
connection SG
Option connector 2 GND
*5. It is recommended to use 2W1kΩ
when the frequency setting signal Option connector 3
is changed frequently.
Terminating
resistor VCC 5V (Permissible load
current 100mA)

CAUTION
· To prevent a malfunction due to noise, keep the signal cables more than 10cm away from the power cables. Also separate the main circuit wire
of the input side and the output side.
· After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean.
When drilling mounting holes in an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.
· Set the voltage/current input switch correctly. Different setting may cause a fault, failure or malfunction.

14
 Main circuit terminal specifications

2.2 Main circuit terminal specifications

2.2.1 Specification of main circuit terminal
Terminal
Terminal Name Description
Symbol
R/L1,
S/L2, AC power input Connect to the commercial power supply.
T/L3
U, V, W Inverter output Connect a three-phase squirrel-cage motor.
Connected to the AC power supply terminals R/L1 and S/L2. To retain the
fault display and fault output, remove the jumpers from terminals R/L1-R1/
L11 and S/L2-S1/L21 and apply external power to these terminals.
Do not turn off the power supply for control circuit (R1/L11, S1/L21) with the
main circuit power (R/L1, S/L2, T/L3) on. Doing so may damage the
R1/L11, Power supply for
inverter. The circuit should be configured so that the main circuit power (R/
S1/L21 control circuit
L1, S/L2, T/L3) is also turned off when the power supply for control circuit
(R1/L11, S1/L21) is off.
The following power supply capacities are required to supply power
separately from R1/L11 and S1/L21:
90VA for 15K or lower, 100VA for 18.5K or higher
P/+, N/- DC terminal Do not connect any options.
For earthing (grounding) the inverter chassis. Must be earthed
Earth (Ground)
(grounded).

WIRING

15
Main circuit terminal specifications

2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor
wiring
200V class
FR-A721-5.5K, 7.5K FR-A721-11K, 15K

R1/L11 S1/L21
R1/L11 S1/L21 Screw size
(M4) Charge lamp
Screw size
(M4) Jumper
Charge lamp
Jumper

Screw size (M5)

Screw size (M5 for 11K, M6 for 15K)

R/L1 S/L2 T/L3 N/- P/+ R/L1 S/L2 T/L3 N/- P/+

IM IM
Power supply Motor Power supply Motor

FR-A721-18.5K to 45K FR-A721-55K

Screw size (M4) Screw size (M4)

R1/L11 S1/L21 R1/L11 S1/L21

Charge Charge
lamp lamp
Jumper Jumper

Screw size
(18.5K/22K/30K: M8, 37K/45K: M10) Screw size (M12)

R/L1 S/L2 T/L3 N/- P/+

R/L1 S/L2 T/L3 N/- P/+

IM Screw size

Power supply Motor

(M6 for 18.5K to 30K, IM Screw size (M8)
M8 for 37K and 45K)
Power supply Motor

16
 Main circuit terminal specifications

400V class
FR-A741-5.5K, 7.5K FR-A741-11K, 15K

Screw size (M4) R1/L11 S1/L21

R1/L11 S1/L21
Screw size (M4)
Charge lamp

Charge lamp Jumper

Jumper

Screw size (M4)

Screw size (M5)

R/L1 S/L2 T/L3 N/- P/+

IM R/L1 S/L2 T/L3 N/- P/+

Power supply Motor

IM
Power supply Motor

FR-A741-18.5K to 45K FR-A741-55K

Screw size (M4)
R1/L11 S1/L21 R1/L11 S1/L21 Screw size (M4)

Charge lamp
Charge lamp

2
Jumper Jumper

WIRING
Screw size (M6 for 18.5K to 30K,
M8 for 37K and 45K)

R/L1 S/L2 T/L3 N/- P/+ Screw size (M8)

IM R/L1 S/L2 T/L3 N/- P/+

Power supply Motor

IM
Power supply Motor

CAUTION
· The power supply cables must be connected to R/L1, S/L2, T/L3. (Phase sequence needs not to be matched.) Never connect
the power cable to the U, V, W of the inverter. Doing so will damage the inverter.
· Connect the motor to U, V, W. At this time, turning ON the forward rotation switch (signal) rotates the motor in the
counterclockwise direction when viewed from the motor shaft.

17
Main circuit terminal specifications

2.2.3 Cables and wiring length

(1) Applicable cable size
Select the recommended cable size to ensure that a voltage drop will be 2% or less.
If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor
torque to decrease especially at the output of a low frequency.
The following table indicates a selection example for the wiring length of 20m.
200V class (when input power supply is 220V)
Crimping Cable Sizes
Terminal 2
Applicable Inverter Tightening Terminal HIV, etc. (mm ) *1 AWG/MCM *2 PVC, etc. (mm2) *3
Screw
Model Torque N·m R/L1, R/L1, Earthing R/L1, R/L1, Earthing
Size *4 S/L2, U, V, W S/L2, U, V, W S/L2, U, V, W S/L2, U, V, W
T/L3 T/L3 cable T/L3 T/L3 cable
FR-A721-5.5K M5 2.5 5.5-5 5.5-5 5.5 5.5 5.5 10 10 6 6 6
FR-A721-7.5K M5 2.5 14-5 8-5 14 8 5.5 6 8 16 10 16
FR-A721-11K M5 2.5 14-5 14-5 14 14 14 6 6 16 16 16
FR-A721-15K M6 4.4 22-6 22-6 22 22 14 4 4 25 25 16
FR-A721-18.5K M8(M6) 7.8 38-8 38-8 38 38 22 2 2 35 35 25
FR-A721-22K M8(M6) 7.8 38-8 38-8 38 38 22 2 2 35 35 25
FR-A721-30K M8(M6) 7.8 60-8 60-8 60 60 22 1/0 1/0 50 50 25
FR-A721-37K M10(M8) 14.7 80-10 80-10 80 80 22 3/0 3/0 70 70 35
FR-A721-45K M10(M8) 14.7 100-10 100-10 100 100 38 4/0 4/0 95 95 50
FR-A721-55K M12(M8) 24.5 100-12 100-12 100 100 38 4/0 4/0 95 95 50
*1 The cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) with continuous maximum permissible temperature of
75°C. Assumes that the surrounding air temperature is 50°C or less and the wiring distance is 20m or less.
*2 The recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C. Assumes that the
surrounding air temperature is 40°C or less and the wiring distance is 20m or less.
(Selection example for use mainly in the United States.)
*3 For the 15K or lower, the recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C.
Assumes that the surrounding air temperature is 40°C or less and the wiring distance is 20m or less.
For the 18.5K or higher, the recommended cable size is that of the cable (XLPE cable) with continuous maximum permissible temperature of 90°C.
Assumes that the surrounding air temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in Europe.)
*4 The terminal screw size indicates the terminal size for R/L1, S/L2, T/L3, U, V, W, and a screw for earthing (grounding).
A screw for earthing (grounding) of the 18.5K or higher is indicated in ( ).

400V class (when input power supply is 440V)

Crimping Cable Sizes

Terminal Terminal
Applicable Inverter Tightening HIV, etc. (mm2) *1 AWG/MCM *2 PVC, etc. (mm2) *3
Screw
Model Torque N·m R/L1, R/L1, R/L1, R/L1,
Size *4 S/L2, U, V, W S/L2, U, V, W Earthing
Cable
S/L2, U, V, W S/L2, U, V, W Earthing
Cable
T/L3 T/L3 T/L3 T/L3
FR-A741-5.5K M4 1.5 2-4 2-4 2 2 3.5 12 14 2.5 2.5 4
FR-A741-7.5K M4 1.5 5.5-4 5.5-4 3.5 3.5 3.5 12 12 4 4 4
FR-A741-11K M5 2.5 5.5-5 5.5-5 5.5 5.5 8 10 10 6 6 10
FR-A741-15K M5 2.5 8-5 8-5 8 8 8 8 8 10 10 10
FR-A741-18.5K M6 4.4 14-6 8-6 14 8 14 6 8 16 10 16
FR-A741-22K M6 4.4 14-6 14-6 14 14 14 6 6 16 16 16
FR-A741-30K M6 4.4 22-6 22-6 22 22 14 4 4 25 25 16
FR-A741-37K M8 7.8 22-8 22-8 22 22 14 4 4 25 25 16
FR-A741-45K M8 7.8 38-8 38-8 38 38 22 1 2 50 50 25
FR-A741-55K M8 7.8 60-8 60-8 60 60 22 1/0 1/0 50 50 25
*1 The cable size is that of the cable (HIV cable (600V class 2 vinyl-insulated cable) etc.) with continuous maximum permissible temperature of 75°C.
Assumes that the surrounding air temperature is 50°C or less and the wiring distance is 20m or less.
*2 For the 45K or lower, the recommended cable size is that of the cable (THHW cable) with continuous maximum permissible temperature of 75°C.
Assumes that the surrounding air temperature is 40°C or less and the wiring distance is 20m or less.
For the 55K, the recommended cable size is that of the cable (THHN cable) with continuous maximum permissible temperature of 90°C. Assumes that
the surrounding air temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in the United States.)
*3 For the 45K or lower, the recommended cable size is that of the cable (PVC cable) with continuous maximum permissible temperature of 70°C. Assumes
that the ambient temperature is 40°C or less and the wiring distance is 20m or less.
For the 55K, the recommended cable size is that of the cable (XLPE cable) with continuous maximum permissible temperature of 90°C. Assumes that
the ambient temperature is 40°C or less and wiring is performed in an enclosure.
(Selection example for use mainly in Europe.)

18
 Main circuit terminal specifications

The line voltage drop can be calculated by the following formula:

Line voltage drop [V]=

3 × wire resistance[mΩ/m] × wiring distance[m] × current[A]
1000
Use a larger diameter cable when the wiring distance is long or when it is desired to decrease the voltage drop (torque
reduction) in the low speed range.
CAUTION
· Tighten the terminal screw to the specified torque.
A screw that has been tighten too loosely can cause a short circuit or malfunction.
A screw that has been tighten too tightly can cause a short circuit or malfunction due to the unit breakage.
· Use crimping terminals with insulation sleeve to wire the power supply and motor.

(2) Notes on earthing (grounding)

Always earth (ground) the motor and inverter.

1)Purpose of earthing (grounding)

Generally, an electrical apparatus has an earth (ground) terminal, which must be connected to the ground before
use.
An electrical circuit is usually insulated by an insulating material and encased. However, it is impossible to
manufacture an insulating material that can shut off a leakage current completely, and actually, a slight current flow
into the case. The purpose of earthing (grounding) the case of an electrical apparatus is to prevent operator from
getting an electric shock from this leakage current when touching it.
To avoid the influence of external noises, this earthing (grounding) is important to audio equipment, sensors,
computers and other apparatuses that handle low-level signals or operate very fast.

2)Earthing (grounding) methods and earthing (grounding) work

As described previously, earthing (grounding) is roughly classified into an electrical shock prevention type and a
noise-affected malfunction prevention type. Therefore, these two types should be discriminated clearly, and the
following work must be done to prevent the leakage current having the inverter's high frequency components from
entering the malfunction prevention type earthing (grounding):
(a) If possible, use (l) independent earthing (grounding) in figure below for the inverter. If independent earthing
(grounding) is not available, use (ll) joint earthing (grounding) in the figure below which the inverter is
connected with the other equipment at an earthing (grounding) point. The (lll) common earthing (grounding)
as in the figure below, which inverter shares a common earth (ground) cable with the other equipment, must 2
be avoided.
A leakage current including many high frequency components flows in the earth (ground) cables of the
inverter and inverter-driven motor. Therefore, use the independent earthing (grounding) and separated the

WIRING
earthing (grounding) cable of the inverter from equipments sensitive to EMI.
In a high building, it may be effective to use the EMI prevention type earthing (grounding) connecting to an
iron structure frame, and electric shock prevention type earthing (grounding) with the independent earthing
(grounding) together.
(b) This inverter must be earthed (grounded). Earthing (Grounding) must conform to the requirements of national
and local safety regulations and electrical codes. (NEC section 250, IEC 536 class 1 and other applicable
standards).
Use a neutral-point earthed (grounded) power supply for 400V class inverter in compliance with EN standard.
(c) Use the thickest possible earth (ground) cable. The earth (ground) cable should be of not less than the size
indicated in the table on the previous page.
(d) The grounding point should be as near as possible to the inverter, and the ground wire length should be as
short as possible.
(e) Run the earth (ground) cable as far away as possible from the I/O wiring of equipment sensitive to noises and
run them in parallel in the minimum distance.

Other Other Other

Inverter Inverter Inverter
equipment equipment equipment

(II) Joint earthing (grounding).......Good (III) Joint earthing (grounding).......Not allowed

(I) Independent earthing (grounding).......Best

19
Main circuit terminal specifications

(3) Total wiring length

The overall wiring length for the connection to a single motor or multiple motors should be within 500m.
(The wiring length should be within 100m for the operation under vector control.)

Total wiring length

500m or less

300m

300m

300m + 300m = 600m

When driving a 400V class motor by the inverter, surge voltages attributable to the wiring constants may occur at
the motor terminals, deteriorating the insulation of the motor.
Refer to page 45 for measures against deteriorated insulation.
CAUTION
· Especially for long-distance wiring, the inverter may be affected by a charging current caused by the stray capacitances of the
wiring, leading to a malfunction of the overcurrent protective function or fast response current limit function or a malfunction or fault
of the equipment connected on the inverter output side. If fast response current limit function malfunctions, disable this function.(For
Pr. 156 Stall prevention operation selection, refer to page 135 .)
· For explanation of the surge voltage suppression filter (FR-ASF-H/FR-BMF-H) and sine wave filter (MT-BSL/BSC), refer to the
manual of each option.
· Do not connect a surge voltage suppression filter (FR-ASF-H/FR-BMF-H) during the operation under vector control.

(4) Cable size of the control circuit power supply (terminal R1/L11, S1/L21)
· Terminal screw size: M4
· Cable size: 0.75mm2 to 2mm2
· Tightening torque: 1.5N·m

20
 Main circuit terminal specifications

2.2.4 When connecting the control circuit and the main circuit separately
to the power supply

<Connection diagram> When fault occurs, opening of the electromagnetic contactor (MC) on the
MC inverter power supply side results in power loss in the control circuit,
R/L1 Inverter disabling the fault output signal retention. Terminals R1/L11 and S1/L21 are
S/L2 provided to hold a fault signal. In this case, connect the power supply
terminals R1/L11 and S1/L21 of the control circuit to the input side of the MC.
T/L3
Do not connect the power cable to incorrect terminals. Doing so may
R1/L11
damage the inverter.
S1/L21

Remove the jumper

1) Remove the upper screws.

R1/ S1/
2) Remove the lower screws.
L11 L21 Power supply 3)
3) Pull the jumper toward you to terminal block
remove. for the control circuit
Power supply terminal block
4) Connect the separate power supply for the control circuit
cable for the control circuit to the R/L1S/L2 T/L3
R1/L11
upper terminals (R1/L11, S1/L21). S1/L21

MC

1)
Main power supply 2)
4)
FR-A721-5.5K to 15K FR-A721-18.5K to 55K
FR-A741-5.5K to 15K FR-A741-18.5K to 55K

Power supply
terminal block for 2
the control circuit

WIRING

CAUTION
· Do not turn off the control power (terminals R1/L11 and S1/L21) with the main circuit power (R/L1, S/L2, T/L3) on. Doing so may
damage the inverter. Make up a circuit which will switch off the main circuit power supply terminals R/L1, S/L2, T/L3 when the
control circuit power supply terminals R1/L11, S1/L21 are switched off.
· Be sure to use the inverter with the jumpers across terminals R/L1 and R1/L11 and across terminals S/L2 and S1/L21 removed
when supplying power from other sources. The inverter may be damaged if you do not remove the jumper.
· The voltage should be the same as that of the main control circuit when the control circuit power is supplied from other than the
input side of the MC.
· When separate power is supplied from R1/L11 and S1/L21, the power capacity necessary for the 15K or lower is 90VA, for the
18.5K or higher is 100VA.
· If the main circuit power is switched OFF (for 0.1s or more) then ON again, the inverter resets and a fault output will not be held.

21
 Control circuit specifications

2.3 Control circuit specifications

2.3.1 Control circuit terminals
indicates that terminal functions can be selected using Pr. 178 to Pr. 196 (I/O terminal function selection) (Refer to page 207.)
(1) Input signals
Terminal Terminal Rated Refer to
Type

Description
Symbol Name Specifications page
Forward Turn ON the STF signal to start forward When the STF and STR
STF
rotation start rotation and turn it OFF to stop. signals are turned ON
207
Reverse Turn ON the STR signal to start reverse simultaneously, the stop Input resistance
STR
rotation start rotation and turn it OFF to stop. command is given. 4.7kΩ
Start self- Voltage at opening:
STOP holding Turn ON the STOP signal to self-hold the start signal. 21 to 27VDC 207
selection Contacts at short-
RH, Multi-speed Multi-speed can be selected according to the combination of RH, circuited: 4 to
207
RM, RL selection RM and RL signals. 6mADC
Jog mode Turn ON the JOG signal to select Jog operation (initial setting)
207
selection and turn ON the start signal (STF or STR) to start Jog operation.
Input resistance
JOG JOG terminal can be used as pulse train input terminal. To use as 2kΩ
Pulse train
pulse train input terminal, the Pr. 291 setting needs to be changed. Contacts at short- 207
input
(maximum input pulse: 100kpulses/s) circuited: 8 to
13mADC
Turn ON the RT signal to select second function.
Second
When the second function such as "second torque boost" and
RT function 207
"second V/F (base frequency)" are set, turning on the RT signal
selection
selects these functions.
Turn ON the MRS signal (20ms or more) to stop the inverter output.
MRS Output stop Use to shut off the inverter output when stopping the motor by 207
electromagnetic brake.
Used to reset fault output provided when fault occurs.
Input resistance
Turn ON the RES signal for more than 0.1s, then turn it OFF.
4.7kΩ
RES Reset Initial setting is for reset always. By setting Pr. 75, reset can be set 207
Voltage at opening:
to enabled only at fault occurrence. Recover about 1s after reset
21 to 27VDC
Contact input

is cancelled.
Contacts at short-
Terminal 4 Terminal 4 is valid only when the AU signal is turned ON. (The circuited: 4 to
input frequency setting signal can be set between 4 and 20mADC.) 6mADC 263
selection Turning the AU signal ON makes terminal 2 (voltage input) invalid.
AU
AU terminal is used as PTC input terminal (thermal protection of
PTC input the motor). When using it as PTC input terminal, set the AU/PTC 168
switch to PTC.
Selection of When the CS signal is left ON, the inverter restarts automatically
automatic
at power restoration. Note that restart setting is necessary for this
CS restart after 207
operation. In the initial setting, a restart is disabled.
instantaneous
power failure (Refer to Pr. 57 Restart coasting time in page 243)
Contact input
Common terminal for contact input terminal (sink logic) and terminal
common (sink)
FM.
(initial setting)
When connecting the transistor output (open collector output),
External
such as a programmable controller, when source logic is
transistor
SD selected, connect the external power supply common for -------------------- —
common
transistor output to this terminal to prevent a malfunction caused
(source)
by undesirable currents.
24VDC power Common output terminal for 24VDC 0.1A power supply (PC
supply terminal).
common Isolated from terminals 5 and SE.
External When connecting the transistor output (open collector output), such
transistor as a programmable controller, when sink logic is selected, connect
common (sink) the external power supply common for transistor output to this Power supply
(initial setting) terminal to prevent a malfunction caused by undesirable currents. voltage range 19.2
PC Contact input to 28.8VDC 26
common Common terminal for contact input terminal (source logic). Permissible load
(source) current 100mA
24VDC power
Can be used as 24VDC 0.1A power supply.
supply

22
 Control circuit specifications

Terminal Terminal Rated Refer to

Type

Description
Symbol Name Specifications page
10VDC±0.4V
10E When connecting the frequency setting potentiometer at an initial Permissible load 263
Frequency
status, connect it to terminal 10. current 10mA
setting power
Change the input specifications of terminal 2 when connecting it 5.2VDC±0.2V
supply
10 to terminal 10E. (Refer to Pr. 73 Analog input selection.) Permissible load 263
current 10mA
Inputting 0 to 5VDC (or 0 to 10V, 0 to 20mA) provides the Voltage input:
maximum output frequency at 5V (10V, 20mA) and makes input Input resistance
Frequency
and output proportional. Use Pr. 73 to switch from among input 0 10kΩ ± 1kΩ
2 setting 263
to 5VDC (initial setting), 0 to 10VDC, and 0 to 20mA. Maximum
(voltage)
Set the voltage/current input switch in the ON position to select permissible voltage
current input (0 to 20mA). *1 20VDC
Current input:
Input resistance
Frequency setting

Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides the 245Ω ± 5Ω

maximum output frequency at 20mA makes input and output Maximum
proportional. This input signal is valid only when the AU signal is permissible current
Frequency ON (terminal 2 input is invalid). 30mA
4 setting Use Pr. 267 to switch from among input 4 to 20mA (initial setting), 4 2 263
(current) 0 to 5VDC, and 0 to 10VDC. Voltage/current
input switch
Set the voltage/current input switch in the OFF position to select
voltage input (0 to 5V/0 to 10V). *1
Use Pr. 858 to switch terminal functions.
switch1
switch2

Input resistance
Frequency Inputting 0 to ±5 VDC or 0 to ±10VDC adds this signal to terminal 10kΩ ± 1kΩ
2 or 4 frequency setting signal. Use Pr. 73 to switch between the
1 setting Maximum 263
input 0 to ±5VDC and 0 to ±10VDC (initial setting).
auxiliary Use Pr. 868 to switch terminal functions. permissible voltage
± 20VDC
Frequency
Common terminal for frequency setting signal (terminal 2, 1 or 4)
5 setting -------------------- 263
and analog output terminal AM. Do not earth (ground).
common
*1 Set Pr. 73, Pr. 267, and a voltage/current input switch correctly, then input an analog signal in accordance with the setting.
Applying a voltage signal with voltage/current input switch ON (current input is selected) or a current signal with switch OFF (voltage input is 2
selected) could cause component damage of the inverter or analog circuit of signal output devices. (For details, refer to page 263.)

WIRING
(2) Output signals
Terminal Terminal Rated Refer to
Type

Description
Symbol Name Specifications page
1 changeover contact output indicates that the inverter
protective function has activated and the output stopped.
A1,
Relay output 1 Fault: No conduction between B and C (conduction between A
B1, Contact capacity: 215
(alarm output) and C)
C1
Relay

230VAC 0.3A
Normal: Conduction between B and C (No conduction between
(Power factor=0.4)
A and C)
30VDC 0.3A
A2,
B2, Relay output 2 1 changeover contact output 215
C2

23
Control circuit specifications

Terminal Terminal Rated Refer to

Type

Description
Symbol Name Specifications page
Switched low when the inverter output frequency is equal to or
Inverter
RUN higher than the starting frequency (initial value 0.5Hz). Switched 215
running
high during stop or DC injection brake operation. *1
Switched low when the output
Permissible load
frequency reaches within the range of
Up to 24VDC (27VDC
SU ±10% (initial value) of the set frequency. 215
frequency maximum) 0.1A
Switched high during acceleration/
(A voltage drop is
deceleration and at a stop. *1
2.8V maximum
Switched low when stall prevention is when the signal is
Open collector

Overload activated by the stall prevention on.)

OL 215
warning function. Switched high when stall Alarm code (4 bits) *1 Low is when the
prevention is cancelled. *1 output (Refer to page open collector
Switched low when an instantaneous 252) output transistor is
Instantaneous ON (conducts).
IPF power failure and under voltage High is when the
215
power failure
protections are activated. *1 transistor is OFF
Switched low when the inverter output (does not
conduct).
frequency is equal to or higher than the
Frequency
FU preset detected frequency and high 215
detection
when less than the preset detected
frequency. *1
Open collector
SE Common terminal for terminals RUN, SU, OL, IPF, FU -------------------- -----
output common
Permissible load
Output item:
current 2mA
For meter Output frequency 229
1440pulses/s at
Select one e.g. output frequency from (initial setting)
60Hz
Pulse

FM monitor items. Not output during Signals can be output Maximum output
NPN open inverter reset. from the open pulse: 50kpulses/s
The output signal is proportional to the 356
collector output collector terminals by Permissible load
magnitude of the corresponding setting Pr. 291. current : 80mA
monitoring item.
Output signal 0 to
To set a full-scale value for monitoring 10VDC
the output frequency and the output Output item: Permissible load
Analog

Analog signal current, set Pr. 56 and Pr.158.

AM Output frequency current 1mA 229
output
(initial setting) (load impedance
10kΩ or more)
Resolution 8 bit
(3) Communication
Terminal Terminal Refer to
Type

Description
Symbol Name page
With the PU connector, communication can be made through RS-485.
(for connection on a 1:1 basis only)
PU . Conforming standard : EIA-485 (RS-485)
-------------------- 305
connector . Transmission format : Multidrop link
. Communication speed : 4800 to 38400bps
. Overall length : 500m
RS-485

TXD+ Inverter
RS-485 terminals

transmission
TXD- With the RS-485 terminals, communication can be made through RS-485.
terminal Conforming standard : EIA-485 (RS-485)
RXD+ Inverter Transmission format : Multidrop link 307
reception Communication speed : 300 to 38400bps
RXD- terminal Overall length : 500m
SG Earth (Ground)
The FR Configurator can be used by connecting the inverter to the personal
computer through USB.
USB
USB

-------------------- Interface:Conforms to USB1.1 337

connector
Transmission speed:12Mbps
Connector:USB B connector (B receptacle)

24
 Control circuit specifications

2.3.2 Changing the control logic

The input signals are set to sink logic (SINK) when shipped from the factory.
To change the control logic, the jumper connector on the back of the control circuit terminal block must be moved to the
other position.
(The output signals may be used in either the sink or source logic independently of the jumper connector position.)
1) Loosen the two installation screws in both ends of the control circuit terminal block. (These screws cannot be
removed.)
Pull down the terminal block from behind the control circuit terminals.

2) Change the jumper connector set to the sink logic (SINK) on the rear panel of the control circuit terminal block to
source logic (SOURCE).

2
Jumper connector

WIRING
3) Using care not to bend the pins of the inverter's control circuit connector, reinstall the control circuit terminal block
and fix it with the mounting screws.

CAUTION
1. Make sure that the control circuit connector is fitted correctly.
2. While power is ON, never disconnect the control circuit terminal block.

25
Control circuit specifications

4) Sink logic and source logic

⋅ In sink logic, a signal switches ON when a current flows from the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals.
⋅ In source logic, a signal switches ON when a current flows into the corresponding signal input terminal.
Terminal PC is common to the contact input signals. Terminal SE is common to the open collector output signals.
Current flow concerning the input/output signal Current flow concerning the input/output signal
when sink logic is selected when source logic is selected

Sink logic Source logic

PC

Current Sink
STF Current
connector
R STF
R Source
connector

STR
R STR
R

SD

Inverter DC input (sink type) Inverter DC input (source type)

<Example: QX40> <Example: QX80>

RUN TB1 RUN TB1

R R
R R

SE - + TB17 SE + - TB18

24VDC 24VDC

Current flow Current flow

• When using an external power supply for transistor output

⋅ Sink logic type ⋅ Source logic type
Use terminal PC as a common terminal, and perform Use terminal SD as a common terminal, and perform
wiring as shown below. (Do not connect terminal SD of wiring as shown below. (Do not connect terminal PC of
the inverter with terminal 0V of the external power the inverter with terminal +24V of the external power
supply. When using terminals PC and SD as a 24VDC supply. When using terminals PC and SD as a 24VDC
power supply, do not install a power supply in parallel in power supply, do not install an external power supply in
the outside of the inverter. Doing so may cause a parallel with the inverter. Doing so may cause a
malfunction due to undesirable currents.) malfunction in the inverter due to undesirable currents.)

QY40P type transistor Inverter Inverter

QY80 type transistor
output unit output unit
TB1 STF 24VDC PC
(SD)
TB1 STF 24VDC
TB2 STR
(SD)
TB2 STR
Constant TB17
Constant
voltage PC
24VDC

voltage
circuit circuit
Fuse TB17
TB18
TB18 SD
24VDC SD

Current flow Current flow

26
 Control circuit specifications

2.3.3 Control circuit terminal layout

Terminal screw size: M3.5
Tightening torque: 1.2N·m A1 B1 C1 A2 B2 C2 10E 10 2 5 4

RL RM RH RT AU STOP MRS RES SD FM AM 1

SE RUN SU IPF OL FU SD SD STF STR JOG CS PC

(1) Common terminals of the control circuit (SD, 5, SE)

Terminals SD, 5, and SE are all common terminals (0V) for I/O signals and are isolated from each other. Do not earth
(ground) these terminals.
Avoid connecting the terminal SD and 5 and the terminal SE and 5.
Terminal SD is a common terminal for the contact input terminals (STF, STR, STOP, RH, RM, RL, JOG, RT, MRS, RES,
AU, CS) and frequency output signal (FM).
The open collector circuit is isolated from the internal control circuit by photocoupler.
Terminal 5 is a common terminal for frequency setting signal (terminal 2, 1 or 4) and analog output terminal AM.
It should be protected from external noise using a shielded or twisted cable.
Terminal SE is a common terminal for the open collector output terminal (RUN, SU, OL, IPF, FU).
The contact input circuit is isolated from the internal control circuit by photocoupler.

(2) Signal inputs by contactless switches

The contacted input terminals of the inverter (STF, STR, STOP, RH,
+24V
RM, RL, JOG, RT, MRS, RES, AU, CS) can be controlled using a
transistor instead of a contacted switch as shown on the right.

STF, etc

Inverter
2
SD

WIRING
External signal input using transistor

2.3.4 Wiring instructions

1) It is recommended to use the cables of 0.75mm2 gauge for connection to the control circuit terminals.
If the cable gauge used is 1.25mm2 or more, the front cover may be lifted when there are many cables running or
the cables are run improperly, resulting in an operation panel contact fault.
2) The wiring length should be 30m(200m for terminal FM) maximum.
3) Use two or more parallel micro-signal contacts or twin contacts to
prevent a contact faults when using contact inputs since the
control circuit input signals are micro-currents.

Micro signal contacts Twin contacts

4) Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and
power circuits (including the 200V relay sequence circuit).
5) Do not apply a voltage to the contact input terminals (e.g. STF) of the control circuit.
6) Always apply a voltage to the fault output terminals (A, B, C) via a relay coil, lamp, etc.

27
Control circuit specifications

2.3.5 When connecting the operation panel using a connection cable

Having an operation panel on the enclosure surface is convenient. With a connection cable, you can mount the
operation panel (FR-DU07) to the enclosure surface, and connect it to the inverter.

Parameter unit connection cable

(FR-CB2)(option)

Operation panel(FR-DU07)

Operation panel connection connector

(FR-ADP)(option)

CAUTION
Do not connect the PU connector to the computer's LAN port, FAX modem socket or telephone connector.
The inverter and machine could be damaged due to differences in electrical specifications.

REMARKS
⋅ Refer to page 5 for removal method of the operation panel.
· Overall wiring length when the operation panel is connected: 20m maximum
· Refer to the following when fabricating the cable on the user side.
Commercially available product examples (as of January 2010)

Product Type Manufacturer

SGLPEV-T (Cat5e/300m)
1) Communication cable Mitsubishi Cable Industries, Ltd.
24AWG × 4P
2) RJ-45 connector 5-554720-3 Tyco Electronics
⋅ The inverter can be connected to the computer and FR-PU04/FR-PU07.

2.3.6 RS-485 terminal block

⋅ Conforming standard: EIA-485(RS-485)
⋅ Transmission format: Multidrop link OPEN
⋅ Communication speed: MAX 38400bps
⋅ Overall length: 500m Terminating resistor switch
⋅ Connection cable:Twisted pair cable Factory-set to "OPEN".
(4 pairs) Set only the terminating resistor switch of the
100Ω remotest inverter to the "100Ω" position.

RDA1 RDB1 RDA2 RDB2 RXD

(RXD1+)(RXD1-)(RXD2+)(RXD2-)

SDA1 SDB1 SDA2 SDB2

TXD (TXD1+)(TXD1-) (TXD2+) (TXD2-)

P5S SG P5S SG
(VCC) (GND) (VCC) (GND) VCC

28
 Control circuit specifications

2.3.7 Communication operation

Using the PU connector or RS-485 terminal, you can perform communication operation from a personal computer etc.
When the PU connector is connected with a personal, FA or other computer by a communication cable, a user
program can run and monitor the inverter or read and write to parameters.
For the Mitsubishi inverter protocol (computer link operation), communication can be performed with the PU
connector and RS-485 terminal.
For the Modbus-RTU protocol, communication can be performed with the RS-485 terminal.
For further details, refer to page 305.

WIRING

29
Connection of motor with encoder (vector control)

2.4 Connection of motor with encoder (vector control)

Orientation control and encoder feedback control, and speed control, torque control and position control by full-scale
vector control operation can be performed using a motor with encoder and a plug-in option FR-A7AP.
(1) Structure of the FR-A7AP
Mounting
Terminal Front view hole Rear view
block
4 SW2 2 LED1

SW3
N
3 O 1
N 2
O 1 LED2
LED3

FR-A7AP
SW1

Mounting
hole Switch for manufacturer Connector
setting (SW3) Mounting
Connect to the inverter
Do not change from initially- hole
option connector.
set status (1, 2:OFF
2
).
N
O 1

Terminating resistor selection Terminal layout

switch (SW2)
Switch ON/OFF of the internal PA1
PA2
terminating resistor. PB1
PB2
(Refer to page 31.) PZ1
PZ2
CON2 connector PG
SD
Not used. PG
SD
PO PIN
Encoder specification selection switch (SW1)
Used to change the specification of encoder PIN and PO are
(differential line driver/complementary). not used.
(Refer to page 31.)

(2) Terminals of the FR-A7AP

Terminal Terminal Name Description
PA1 Encoder A-phase signal input terminal
PA2 Encoder A-phase inverse signal input terminal
PB1 Encoder B-phase signal input terminal
A-, B- and Z-phase signals are input from the encoder.
PB2 Encoder B-phase inverse signal input terminal
PZ1 Encoder Z-phase signal input terminal
PZ2 Encoder Z-phase inversion signal input terminal
PG Encoder power supply (positive side) input terminal Input terminal for the encoder power supply.
Connect the external power supply (5V, 12V, 15V, 24V) and the
SD Encoder power supply ground terminal encoder power cable.
PIN
Not used.
PO

30
 Connection of motor with encoder (vector control)

(3) Switches of the FR-A7AP

• Encoder specification selection switch (SW1) Differential line
4 SW2 2

SW3
N
3 O 1
N 2

Select either differential line driver or complementary

O 1

driver (initial status)

It is initially set to the differential line driver. Switch its position according

FR-A7AP
to output circuit. SW1

Complementary

• Terminating resistor selection switch (SW2) Internal terminating

Select ON/OFF of the internal terminating resistor. Set the switch to ON resistor-ON 4 SW2 2

SW3
N
3 O 1
N 2

(initial status) when an encoder output type is differential line driver and
O 1

(initial status)
set to OFF when complementary.

FR-A7AP
ON : with internal terminating resistor (initial status) SW1

OFF : without internal terminating resistor

Internal terminating resistor-OFF

REMARKS
· Set all switches to the same setting (ON/OFF).
· If the encoder output type is differential line driver, set the terminating resistor
switch to the "OFF" position when sharing the same encoder with other unit (NC
(numerical controller), etc.) or a terminating resistor is connected to other unit.

• Motor used and switch setting

Encoder Specification Terminating Resistor Power
Motor
Selection Switch (SW1) Selection Switch (SW2) Specifications *2
Mitsubishi standard motor with encoder SF-JR Differential ON 5V
Mitsubishi high efficiency motor with SF-HR Differential ON 5V
encoder Others *1 *1 *1
SF-JRCA Differential ON 5V
Mitsubishi constant-torque motor with
SF-HRCA Differential ON 5V
encoder
Others *1 *1 *1
Vector control dedicated motor SF-V5RU Complimentary OFF 12V
Other manufacturer motor with encoder – *1 *1 *1
*1 Set according to the motor (encoder) used.
*2 Choose a power supply (5V/12V/15V/24V) for encoder according to the encoder used.
2
CAUTION
SW3 switch is for manufacturer setting. Do not change the setting.

WIRING
• Encoder specification
Item Encoder for SF-JR/HR/JRCA/HRCA Encoder for SF-V5RU
Resolution 1024 Pulse/Rev 2048 Pulse/Rev
Power supply
5VDC±10% 12VDC±10%
voltage
Current
150mA 150mA
consumption
A, B phases (90° phase shift) A, B phases (90° phase shift)
Output signal form
Z phase: 1 pulse/rev Z phase: 1 pulse/rev
Output circuit Differential line driver 74LS113 equivalent Complimentary
H level: 2.4V or more H level: "Power supply for encoder-3V" or more
Output voltage
L level: 0.5V or less L level: 3V or less

CAUTION
Encoder with resolution of 1000 to 4096 pulse/rev is recommended.

31
Connection of motor with encoder (vector control)

(4) Encoder Cable

SF-JR/HR/JRCA/HRCA Motor with Encoder SF-V5RU, SF-THY

F-DPEVSB 12P 0.2mm2 MS3057-12A Inverter side Encoder side

connector MS3057-12A
Approx. 140mm
F-DPEVSB 12P 0.2mm2
Earth cable Earth cable

11mm
60mm L
60mm
MS3106B20-29S L MS3106B20-29S
Type Length L (m) ⋅ A P clip for earthing (grounding) a Type Length L (m)
FR-JCBL5 5 shielded cable is provided.
FR-V7CBL5 5
FR-JCBL15 15 FR-V7CBL15 15
FR-JCBL30 30 FR-V7CBL30 30

FR-A701 FR-A701
(FR-A7AP) Encoder (FR-A7AP) Encoder
PA1 C PA1 A
PA2 R PA2 B
PB1 A PB1 C
PB2 N PB2 D
PZ1 B PZ1 F
PZ2 P Positioning keyway PZ2 G Positioning keyway

A B
M
C M A B
PG H L N PG S L N C
SD K T P D SD R T P D
K E K E
S R S R
J F J F
H G H G

MS3106B20-29S MS3106B20-29S
(As viewed from wiring side)
(As viewed from wiring side)
2mm2 2mm2

* As the terminal block of FR-A7AP is an insertion type, earthing cables need to be modified. (See below)

• When using the dedicated encoder cable (FR-JCBL, FR-V5CBL, etc.) for the conventional motor, cut the crimpling
terminal of the encoder cable and strip its sheath to make its cables loose.
Also, protect the shielded cable of the twisted pair Wire stripping size
shielded cable to ensure that it will not make contact with
the conductive area.
Wire the stripped wire after twisting it to prevent it from
5mm
becoming loose. In addition, do not solder it.
Use a blade terminal as necessary.
REMARKS
Information on blade terminals
Commercially available product examples (as of January 2010)
zPhoenix Contact Co.,Ltd.
Terminal Screw Blade Terminal Model Blade terminal
Wire Size (mm2)
Size with insulation sleeve without insulation sleeve crimping tool
M2 0.3, 0.5 AI 0,5-6WH A 0,5-6 CRIMPFOX 6

zNICHIFU Co.,Ltd.
Terminal Screw Blade terminal product Insulation product Blade terminal
Wire Size (mm2)
Size number number crimping tool
M2 0.3 to 0.75 BT 0.75-7 VC 0.75 NH 67

When using the blade terminal (without insulation sleeve),

use care so that the twisted wires do not come out.

32
 Connection of motor with encoder (vector control)

Connection terminal compatibility table

Motor SF-V5RU, SF-THY SF-JR/HR/JRCA/HRCA (with Encoder)
Encoder cable FR-V7CBL FR-JCBL
PA1 PA PA
PA2 Keep this open. PAR
PB1 PB PB
PB2 Keep this open. PBR
FR-A7AP terminal
PZ1 PZ PZ
PZ2 Keep this open. PZR
PG PG 5E
SD SD AG2

(5) Wiring
• Speed control
Vector control dedicated motor
Standard motor with encoder (SF-JR), 5V differential line driver (SF-V5RU, SF-THY),
12V complementary

SF-JR motor MCCB MC OCR SF-V5RU, SF-THY

*7 A
MCCB Inverter with encoder Three-phase
B
R/L1 U U AC power FAN
supply C
Three-phase S/L2 V V
AC power supply IM U U
T/L3 W W Inverter
V V
E W W
IM

Forward rotation start STF Earth External E

FR-A7AP (Ground) thermal Earth
Thermal relay
Reverse rotation start STR PA1 C *1 relay input *8PC
(Ground)
protector
CS(OH) 2W1kΩ G1
Contact input common SD PA2 R SD G2
FR-A7AP
PB1 A PA1 A *1

PB2 N PA2 B
10 Differential Encoder PB1 C
Frequency command 3 PZ1 B PB2 D
Frequency setting 2
2 PZ2 P *2 Encoder
potentiometer Differential PZ1 F
1/2W1kΩ 1 5 Complementary
PG H PZ2 G *2

Complementary PG S
Terminating SD K
resistor ON Terminating SD R

2
Torque limit PG resistor
(+) 1 ON PG
command (-) SD
*3
SD *3
( 10V) 5VDC power supply *5 *4 *6 12VDC power supply *5
OFF *6 (+) (-) (+) (-)
OFF
*4

WIRING
• Torque control
Vector control dedicated motor
Standard motor with encoder (SF-JR), 5V differential line driver (SF-V5RU, SF-THY),
12V complementary

SF-JR motor MCCB MC OCR SF-V5RU, SF-THY

*7 A
MCCB Inverter with encoder Three-phase
B
R/L1 U U AC power
C
FAN
Three-phase S/L2 V V supply
AC power supply IM
T/L3 W W Inverter U U
V V
E IM
W W
Forward rotation start STF Earth External E
FR-A7AP (Ground) thermal Earth
Thermal relay
Reverse rotation start STR PA1 C *1 PC
(Ground)
relay input *8 protector
CS(OH) 2W1kΩ G1
Contact input common SD PA2 R G2
SD
FR-A7AP
PB1 A PA1 A *1

PB2 N PA2 B
10 Differential Encoder PB1 C
Speed limit command 3 PZ1 B
Frequency setting 2 PB2 D
2 PZ2 P *2 Encoder
potentiometer Differential PZ1 F
1/2W1kΩ 1 5 Complementary
PG H PZ2 G *2

PG S
Terminating SD K Complementary

resistor ON Terminating SD R
Torque command (+) PG resistor
1 *3 ON PG
( 10V) (-) SD 5VDC SD *3
*4 *6 12VDC power supply *5
OFF *6 (+) (-) power supply *5 OFF
(+) (-)
*4

33
Connection of motor with encoder (vector control)

• Position control
Vector control dedicated motor (SF-V5RU, SF-THY), 12V complementary

MCCB MC SF-V5RU, SF-THY

*7 OCR A
Three-phase AC B
power supply FAN
C
Positioning unit MCCB
MELSEQ-Q QD75P1 R/L1 Inverter U U
Three-phase AC S/L2 V V
power supply IM
T/L3 W W
FLS
E
RLS Earth
DOG (ground) Thermal
External thermal PC protector
STOP relay input *8 CS(OH) 2W1kΩ G1
Forward stroke end SD G2
STF
Reverse stroke end FR-A7AP
STR PA1 A *1
Pre-excitation/servo on
LX *9 PA2 B
Clear signal
CLEAR CLR *9 C
PB1
Pulse train
PULSE F JOG *10 PB2 D
Sign signal Differential
PULSE R NP *9 Encoder
24VDC power supply line driver PZ1 F
CLEAR COM PC PZ2 G *2
PULSE COM SE
Complementary PG S
RDY COM
Terminating SD R
COM resistor
Preparation ready signal ON PG
READY RDY *11
SD *3
5 12VDC
*4 *6 (+) (-) power supply *5
OFF
Torque limit command (+) 1
(±10V) (-)

*1 The pin number differs according to the encoder used.

Speed control, torque control, and position control by pulse train input are properly performed without the connection of
the Z-phase.
*2 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio should be 1:1.
*3 Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc. (Refer to page 35.)
*4 For the complementary, set the terminating resistor selection switch to off position. (Refer to page 31.)
*5 A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power specification.
*6 For terminal compatibility of the FR-JCBL, FR-V7CBL and FR-A7AP, refer to page 33.
*7 For the fan of the 7.5kW or less dedicated motor, the power supply is single phase. (200V/50Hz, 200 to 230V/60Hz)
*8 Assign OH (external thermal input) signal to the terminal CS. (Set "7" in Pr. 186 )
Connect a 2W1kΩ resistor between the terminal PC and CS (OH). Install the CS(OH)
resistor pushing against the bottom part of the terminal block so as to avoid a PC
Control circuit
contact with other cables. terminal block
Refer to page 207 for details of Pr. 186 CS terminal function selection.
*9 Assign the function using Pr. 178 to Pr. 184, Pr. 187 to Pr. 189 (input terminal function
selection).
*10 When position control is selected, terminal JOG function is invalid and the simple Resistor (2W1kΩ)

position pulse train input terminal becomes valid.

*11 Assign the function using Pr. 190 to Pr. 194 (output terminal function selection).

34
 Connection of motor with encoder (vector control)

(6) Instructions for encoder cable wiring

• Use twisted pair shield cables (0.2mm2 or larger) to connect the FR-A7AP and position detector. Cables to terminals PG
and SD should be connected in parallel or be larger in size according to the cable length.
To protect the cables from noise, run them away from any source of noise (e.g. the main circuit and power supply voltage).
Wiring Length Parallel Connection Larger-Size Cable
Within 10m At least two cables in parallel 0.4mm2 or larger
Cable gauge
Within 20m At least four cables in parallel 0.75mm2 or larger
0.2mm2
Within 100m * At least six cables in parallel 1.25mm2 or larger
* When differential line driver is set and a wiring length is 30m or more
The wiring length can be extended to 100m by slightly increasing the power by 5V (approx. 5.5V) using six or more cables with gauge size of 0.2mm2
in parallel or a cable with gauge size of 1.25mm2 or more. Note that the voltage applied should be within power supply specifications of encoder.
• To reduce noise of the encoder cable, earth (ground) the encoder Earthing (grounding) example using a P clip
shielded cable to the enclosure (as near as the inverter) with a P clip or
U clip made of metal. Encoder cable
Shield
REMARKS P clip
· For details of the optional encoder dedicated cable (FR-JCBL/FR-V7CBL), refer
to page 32.
· The FR-V7CBL is provided with a P clip for earthing (grounding) shielded cable.
(7) Parameter for encoder (Pr. 359, Pr. 369)
Parameter Initial Setting
Name Description
Number Value Range
CW
0 Forward rotation is clockwise
A
rotation when viewed from A.
Encoder rotation Encoder
359 1
direction
CCW
1 Forward rotation is counterclockwise
A
rotation when viewed from A.
Encoder
Number of encoder Set the number of encoder pulses output.
369 1024 0 to 4096
pulses Set the number of pulses before it is multiplied by 4.
The above parameters can be set when the FR-A7AP (option) is mounted.

(8) Motor for vector control and parameter setting

2
Pr. 9 Pr. 81 Pr. 359 Pr. 369
Motor Name Electronic thermal
Pr. 71 Pr. 80 Encoder rotation Number of
Number of motor
Applied motor Motor capacity
O/L relay poles direction encoder pulses

WIRING
SF-JR Motor rated current 0 Motor capacity Number of motor poles 1 1024
Mitsubishi standard
SF-HR Motor rated current 40 Motor capacity Number of motor poles 1 1024
motor
Others Motor rated current 3 *1 Motor capacity Number of motor poles *2 *2

SF-JRCA 4P Motor rated current 1 Motor capacity 4 1 1024

Mitsubishi constant-
SF-HRCA Motor rated current 50 Motor capacity Number of motor poles 1 1024
torque motor
Others Motor rated current 13 *1 Motor capacity Number of motor poles *2 *2

Mitsubishi vector SF-V5RU

0 *3 30 Motor capacity 4 1 2048
control dedicated (1500r/min series)
motor SF-V5RU
(except for 1500r/ 0 *3 13 *1 Motor capacity 4 1 2048
min series)
SF-THY 0 *3 33 *1 Motor capacity 4 1 2048
Other manufacturer's
— Motor rated current 3 *1 Motor capacity Number of motor poles *2 *2
standard motor
Other manufacturer's
constant-torque — Motor rated current 13 *1 Motor capacity Number of motor poles *2 *2

motor
Values in the bolded frame are initial values.
*1 Offline auto tuning is necessary. (Refer to page 171)
*2 Set this parameter according to the motor (encoder) used.
*3 Use thermal protector input provided with the motor.

♦Parameters referred to♦

• Vector control (speed control) Refer to page 81.
• Vector control (torque control) Refer to page 107.
• Vector control (position control) Refer to page 115.
• Orientation control Refer to page 196.
• Encoder feedback control Refer to page 359.

35
Connection of motor with encoder (vector control)

(9) Combination with a vector control dedicated motor

Refer to the table below when using with a vector control dedicated motor.
• Combination with the SF-V5RU
Voltage 200V class 400V class
Rated speed 1500r/min
Base frequency 50Hz
Maximum speed 3000r/min
Motor frame Motor frame
Motor capacity Motor model Inverter model Motor model Inverter model
number number
3.7kW 112M SF-V5RU3K FR-A721-5.5K — — —
5.5kW 132S SF-V5RU5K FR-A721-7.5K 132S SF-V5RUH5K FR-A741-7.5K
7.5kW 132M SF-V5RU7K FR-A721-11K 132M SF-V5RUH7K FR-A741-11K
11kW 160M SF-V5RU11K FR-A721-15K 160M SF-V5RUH11K FR-A741-15K
15kW 160L SF-V5RU15K FR-A721-18.5K 160L SF-V5RUH15K FR-A741-18.5K
18.5kW 180M SF-V5RU18K FR-A721-22K 180M SF-V5RUH18K FR-A741-22K
22kW 180M SF-V5RU22K FR-A721-30K 180M SF-V5RUH22K FR-A741-30K
30kW 200L *2 SF-V5RU30K FR-A721-37K 200L *2 SF-V5RUH30K FR-A741-37K
37kW 200L *2 SF-V5RU37K FR-A721-45K 200L *2 SF-V5RUH37K FR-A741-45K
45kW 200L *2 SF-V5RU45K FR-A721-55K 200L *2 SF-V5RUH45K FR-A741-55K

• Combination with the SF-V5RU1, 3, 4 and SF-THY

SF-V5RU†1 (1:2) SF-V5RU†3 (1:3) SF-V5RU†4 (1:4)
Voltage 200V class
Rated speed 1000r/min 1000r/min 500r/min
Base
33.33Hz 33.33Hz 16.6Hz
frequency
Maximum
2000r/min 3000r/min 2000r/min
speed
Motor Motor Motor
Motor Motor Inverter Motor Inverter Motor Inverter
frame frame frame
capacity model model model model model model
number number number
3.7kW 132S SF-V5RU3K1 FR-A721-5.5K 132M SF-V5RU3K3 FR-A721-5.5K 160L SF-V5RU3K4 FR-A721-7.5K
5.5kW 132M SF-V5RU5K1 FR-A721-7.5K 160M SF-V5RU5K3 FR-A721-7.5K 180L SF-V5RU5K4 FR-A721-7.5K
7.5kW 160M SF-V5RU7K1 FR-A721-11K 160L SF-V5RU7K3 FR-A721-11K 200L SF-V5RU7K4 FR-A721-11K
11kW 160L SF-V5RU11K1 FR-A721-15K 180M SF-V5RU11K3 FR-A721-15K 225S SF-V5RU11K4 FR-A721-15K
15kW 180M SF-V5RU15K1 FR-A721-18.5K 180L SF-V5RU15K3 FR-A721-18.5K 225S SF-V5RU15K4 FR-A721-22K
18.5kW 180L SF-V5RU18K1 FR-A721-22K 200L SF-V5RU18K3 FR-A721-22K 250MD SF-THY FR-A721-22K
22kW 200L SF-V5RU22K1 FR-A721-30K 200L SF-V5RU22K3 FR-A721-30K 280MD SF-THY FR-A721-30K
30kW 200L*3 SF-V5RU30K1 FR-A721-37K 225S*1 SF-V5RU30K3 FR-A721-37K 280MD SF-THY FR-A721-37K
37kW 225S SF-V5RU37K1 FR-A721-45K 250MD*1 SF-THY FR-A721-45K 280MD SF-THY FR-A721-45K
45kW 250MD SF-THY FR-A721-55K 250MD*1 SF-THY FR-A721-55K 280MD SF-THY FR-A721-55K
Models surrounded by black borders and 400V class are developed upon receipt of order.
*1 The maximum speed is 2400r/min.
*2 80% output in the high-speed range. (The output is reduced when the speed is 2400r/min or more.)
*3 90% output in the high-speed range. (The output is reduced when the speed is 1000r/min or more.)

36
 3 PRECAUTIONS FOR USE
OF THE INVERTER

This chapter explains the "PRECAUTIONS FOR USE OF THE

INVERTER" for use of this product.
Always read the instructions before using the equipment.

3.1 EMC and leakage currents......................................38

1
3.2 Power-off and magnetic contactor (MC)..................44
3.3 Inverter-driven 400V class motor ............................45
3.4 Precautions for use of the inverter ..........................46
3.5 Failsafe of the system which uses the inverter .......48
2

7
37
EMC and leakage currents

3.1 EMC and leakage currents

3.1.1 Leakage currents and countermeasures
Capacitances exist between the inverter I/O cables, other cables and earth and in the motor, through which a leakage
current flows. Since its value depends on the static capacitances, carrier frequency, etc., low acoustic noise operation
at the increased carrier frequency of the inverter will increase the leakage current. Therefore, take the following
measures. Select the earth leakage circuit breaker according to its rated sensitivity current, independently of the carrier
frequency setting.
(1) To-earth (ground) leakage currents
Leakage currents may flow not only into the inverter's own line but also into the other lines through the earth (ground)
cable, etc. These leakage currents may operate earth (ground) leakage circuit breakers and earth leakage relays
unnecessarily.
Suppression technique
⋅ If the carrier frequency setting is high, decrease the Pr. 72 PWM frequency selection setting. Note that motor noise
increases. Selecting Pr. 240 Soft-PWM operation selection makes the sound inoffensive.
⋅ By using earth leakage circuit breakers designed for harmonic and surge suppression in the inverter's own line and
other line, operation can be performed with the carrier frequency kept high (with low noise).
To-earth (ground) leakage currents
⋅ Take caution as long wiring will increase the leakage current. Decreasing the carrier frequency of the inverter
reduces the leakage current.
⋅ Increasing the motor capacity increases the leakage current. The leakage current of the 400V class is larger than
that of the 200V class.
(2) Line-to-line leakage currents
Harmonics of leakage currents flowing in static capacitances between the inverter output cables may operate the
external thermal relay unnecessarily. When the wiring length is long (50m or more) for the 400V class small-capacity
model (7.5K or lower), the external thermal relay is likely to operate unnecessarily because the ratio of the leakage
current to the rated motor current increases.
Line-to-line leakage current data example (200V class)
Motor Capacity Rated Motor Leakage Currents(mA) ⋅ Motor SF-JR 4P
(kW) Current(A) Wiring length 50m Wiring length 100m ⋅ Carrier frequency: 14.5kHz
3.7 12.8 440 630 ⋅ Used wire: 2mm2, 4cores
Cabtyre cable
5.5 19.4 490 680
7.5 25.6 535 725

*The leakage currents of the 400V class are about twice as large.

MCCB MC Thermal relay Motor

Power
Inverter IM
supply
Line-to-line static
capacitances
Line-to-line leakage currents path
Measures
⋅ Use Pr. 9 Electronic thermal O/L relay.
⋅ If the carrier frequency setting is high, decrease the Pr. 72 PWM frequency selection setting. Note that motor noise
increases. Selecting Pr. 240 Soft-PWM operation selection makes the sound inoffensive. To ensure that the motor is
protected against line-to-line leakage currents, it is recommended to use a temperature sensor to directly detect
motor temperature.
Installation and selection of moulded case circuit breaker
Install a moulded case circuit breaker (MCCB) on the power receiving side to protect the wiring of the inverter input
side. Select the MCCB according to the inverter input side power factor (which depends on the power supply voltage,
output frequency and load). Especially for a completely electromagnetic MCCB, one of a slightly large capacity must
be selected since its operation characteristic varies with harmonic currents. (Check it in the data of the corresponding
breaker.) As an earth leakage circuit breaker, use the Mitsubishi earth leakage circuit breaker designed for
harmonics and surge suppression.

38
 EMC and leakage currents

(3) Selection of rated sensitivity current of earth leakage circuit breaker

When using the earth leakage circuit breaker with the inverter circuit, select its rated sensitivity current as follows,
independently of the PWM carrier frequency:
⋅ Breaker designed for harmonic and surge suppression Ig1, Ig2: Leakage currents in wire path during commercial
Rated sensitivity current: power supply operation
IΔn ≥ 10 × (Ig1 + Ign + Igi + Ig2 + Igm) Ign: Leakage current of inverter input side noise filter
⋅ Standard breaker Igm: Leakage current of motor during commercial power
Rated sensitivity current: supply operation
IΔn ≥ 10 × {Ig1 + Ign + Igi + 3 × (Ig2 + Igm)} Igi: Leakage current of inverter unit
Example of leakage current of Leakage current example of Example of leakage current per 1km during Leakage current example of three-
cable path per 1km during the three-phase induction motor the commercial power supply operation phase induction motor during the
commercial power supply operation during the commercial when the CV cable is routed in metal conduit commercial power supply operation
when the CV cable is routed in power supply operation
(Three-phase three-wire delta (Totally-enclosed fan-cooled
metal conduit (200V 60Hz) type motor 400V60Hz)
connection 400V60Hz)
(200V 60Hz)
2. 0
Leakage currents (mA)

leakage currents (mA)

leakage currents (mA)

120
Leakage currents (mA)

120 2. 0
100 1. 0
100
1. 0 80 0. 7
80 0. 7 0. 5
60
0. 5
60 0. 3
40
0. 3 0. 2
40
0. 2 20
20
0 0. 1
0 0. 1 2 3.5 8 142238 80150 1. 5 3. 7 7. 5 15223755
2 3.5 8 142238 80150 1. 5 3. 7 7. 5 15223755 5.5 30 60 100 2. 2 5.5 1118. 53045
5.5 30 60 100 2. 2 5.5 1118. 53045
Cable size (mm2) Motor capacity (kW)
Cable size (mm2) Motor capacity (kW)
For " " connection, the amount of leakage current is appox.1/3 of the above value.

<Example>
Breaker Designed
for Harmonic and Standard Breaker
Surge Suppression
5m
Leakage current Ig1 (mA) 33 × = 0.17
5.5mm2 × 5m 5.5mm2 × 40m 1000m
ELB Noise Leakage current Ign (mA) 0 (without noise filter)
filter
3φ Leakage current Igi (mA) 1
Inverter IM 200V
5.5kW 40m
Ig1 Ign Ig2 Igm Leakage current Ig2 (mA) 33 × = 1.32
1000m
Igi
Motor leakage current Igm (mA) 0.29
Total leakage current (mA) 2.78 6.00
Rated sensitivity current (mA) (≥ Ig × 10) 30 100

CAUTION
⋅ Install the earth leakage circuit breaker (ELB) on the input side of the inverter.
⋅ In the connection earthed-neutral system, the sensitivity current is blunt against an earth (ground) fault in the inverter output
side. Earthing (Grounding) must conform to the requirements of national and local safety regulations and electrical codes. (NEC 3
section 250, IEC 536 class 1 and other applicable standards)
Use a neutral-point earthed (grounded) power supply for 400V class inverter in compliance with EN standard.
⋅ When the breaker is installed on the output side of the inverter, it may be unnecessarily operated by harmonics even if the
PRECAUTIONS FOR USE OF THE INVERTER

effective value is less than the rating. In this case, do not install the breaker since the eddy current and hysteresis loss will
increase, leading to temperature rise.
⋅ The following models are standard breakers....BV-C1, BC-V, NVB, NV-L, NV-G2N, NV-G3NA and NV-2F earth leakage relay
(except NV-ZHA), NV with AA neutral wire open-phase protection
The other models are designed for harmonic and surge suppression....NV-C/NV-S/MN series, NV30-FA, NV50-FA, BV-C2,
earth leakage alarm breaker (NF-Z), NV-ZHA, NV-H

39
EMC and leakage currents

3.1.2 EMC measures

Some electromagnetic noises enter the inverter to malfunction it and others are radiated by the inverter to malfunction
peripheral devices. Though the inverter is designed to have high immunity performance, it handles low-level signals, so
it requires the following basic techniques. Also, since the inverter chops outputs at high carrier frequency, that could
generate electromagnetic noises. If these electromagnetic noises cause peripheral devices to malfunction, EMI
measures should be taken to suppress noises. These techniques differ slightly depending on EMI paths.

1) Basic techniques
⋅ Do not run the power cables (I/O cables) and signal cables of the inverter in parallel with each other and do not
bundle them.
⋅ Use twisted shield cables for the detector connecting and control signal cables and connect the sheathes of the
shield cables to terminal SD.
⋅ Earth (Ground) the inverter, motor, etc. at one point.

2) Techniques to reduce electromagnetic noises that enter and malfunction the inverter (Immunity measures))
When devices that generate many electromagnetic noises (which use magnetic contactors, magnetic brakes, many
relays, for example) are installed near the inverter and the inverter may be malfunctioned by electromagnetic noises,
the following measures must be taken:
⋅ Provide surge suppressors for devices that generate many electromagnetic noises to suppress electromagnetic
noises.
⋅ Fit data line filters (page 41) to signal cables.
⋅ Earth (Ground) the shields of the detector connection and control signal cables with cable clamp metal.

3) Techniques to reduce electromagnetic noises that are radiated by the inverter to malfunction peripheral devices (EMI
measures)
Inverter-generated electromagnetic noises are largely classified into those radiated by the cables connected to the
inverter and inverter main circuits (I/O), those electromagnetically and electrostatically induced to the signal cables of
the peripheral devices close to the main circuit power supply, and those transmitted through the power supply cables.

Inverter generated Air propagated

Noise directly
electromagnetic electromagnetic Path 1)
radiated from inverter
noise noise
Noise radiated from
Path 2)
power supply cable 5) Telephone
Noise radiated from
motor connection cable Path 3)
7) 7)
Electromagnetic 2)
Path 4), 5)
induction noise
1) Sensor
Electrostatic power supply
Path 6)
induction noise Instrument Receiver 3) Inverter
6) 1) 8)
Electrical path Noise propagated through
propagated noise power supply cable Path 7) 4)

Noise from earth (ground) 3) Sensor

cable due to leakage Path 8) Motor IM
current

40
 EMC and leakage currents

Propagation Path Measures

When devices that handle low-level signals and are liable to malfunction due to electromagnetic noises,
e.g. instruments, receivers and sensors, are contained in the enclosure that contains the inverter or when
their signal cables are run near the inverter, the devices may be malfunctioned by air-propagated
electromagnetic noises. The following measures must be taken:
(1) Install easily affected devices as far away as possible from the inverter.
(2) Run easily affected signal cables as far away as possible from the inverter and its I/O cables.
1) 2) 3)
(3) Do not run the signal cables and power cables (inverter I/O cables) in parallel with each other and do
not bundle them.
(4) Insert common mode filters into I/O and capacitors between the input lines to suppress cable-
radiated noises.
(5) Use shield cables as signal cables and power cables and run them in individual metal conduits to
produce further effects.
When the signal cables are run in parallel with or bundled with the power cables, magnetic and static
induction noises may be propagated to the signal cables to malfunction the devices and the following
measures must be taken:
(1) Install easily affected devices as far away as possible from the inverter.
4) 5) 6) (2) Run easily affected signal cables as far away as possible from the I/O cables of the inverter.
(3) Do not run the signal cables and power cables (inverter I/O cables) in parallel with each other and do
not bundle them.
(4) Use shield cables as signal cables and power cables and run them in individual metal conduits to
produce further effects.
When the power supplies of the peripheral devices are connected to the power supply of the inverter in
the same line, inverter-generated noises may flow back through the power supply cables to malfunction
7)
the devices. In such a case, installing the common mode filter (FR-BLF) to the power cables (output
cable) of the inverter will prevent malfunction.
When a closed loop circuit is formed by connecting the peripheral device wiring to the inverter, leakage
8) currents may flow through the earth (ground) cable of the inverter to malfunction the device. In such a
case, disconnection of the earth (ground) cable of the device may cause the device to operate properly.

z Data line filter

Data line filter is effective as an EMC measure. Provide a data line filter for the detector cable, etc.

z EMC measures

Install common mode filter (FR-BLF) Decrease Install common mode filter (FR-BLF)
on inverter input side. Enclosure carrier frequency on inverter output side.

Inverter
power FR- FR-
supply BLF Inverter BLF IM Motor
Install capacitor type FR-BIF filter Use 4-core cable for motor
on inverter input side. FR-
BIF power cable and use one
cable as earth (ground) cable.
Separate inverter and power
line by more than 30cm (at
3
Use a twisted pair shielded cable
least 10cm) from sensor circuit.
Sensor
Control Power
power supply
supply for sensor
PRECAUTIONS FOR USE OF THE INVERTER

Do not earth (ground) Do not earth (ground) shield but

enclosure directly. connect it to signal common cable.
Do not earth (ground) control cable.

REMARKS
For compliance with the EU EMC Directive, refer to the Instruction Manual (Basic).

41
EMC and leakage currents

3.1.3 Power supply harmonics

The inverter may generate power supply harmonics from its converter circuit to affect the power generator, power
capacitor etc. Power supply harmonics are different from noise and leakage currents in source, frequency band and
transmission path. Take the following countermeasure suppression techniques.
This inverter has a built-in AC reactor (FR-HAL) and a circuit type specified in Harmonic suppression guideline in Japan
is three-phase bridge (capacitor smoothed) and with reactor (AC side).

3.1.4 Harmonic suppression guideline

Harmonic currents flow from the inverter to a power receiving point via a power transformer. The harmonic suppression
guideline was established to protect other consumers from these outgoing harmonic currents.
The three-phase 200V input specifications 3.7kW or less are previously covered by "Harmonic suppression guideline
for household appliances and general-purpose products" and other models are covered by "Harmonic suppression
guideline for consumers who receive high voltage or special high voltage". However, the general-purpose inverter has
been excluded from the target products covered by "Harmonic suppression guideline for household appliances and
general-purpose products" in January 2004. Later, this guideline was repealed on September 6, 2004. All capacities of
all models are now target products of "Harmonic suppression guideline for consumers who receive high voltage or
special high voltage" (hereinafter referred to as "Guideline for specific consumers").
"Guideline for specific consumers"
This guideline sets forth the maximum values of harmonic currents outgoing from a high-voltage or especially high-
voltage consumer who will install, add or renew harmonic generating equipment. If any of the maximum values is
exceeded, this guideline requires that consumer to take certain suppression measures.
Table 1 Maximum Values of Outgoing Harmonic Currents per 1kW Contract Power
Received Power
5th 7th 11th 13th 17th 19th 23rd Over 23rd
Voltage
6.6kV 3.5 2.5 1.6 1.3 1.0 0.9 0.76 0.70
22kV 1.8 1.3 0.82 0.69 0.53 0.47 0.39 0.36
33kV 1.2 0.86 0.55 0.46 0.35 0.32 0.26 0.24

(1) Application of the harmonic suppression guideline for specific consumers

Install, add or renew

equipment

Calculation of equivalent
capacity total
Equal to or less
than reference
capacity Equivalent
capacity total

Above reference
capacity
Calculation of outgoing
harmonic current

Not more than More than upper limit

harmonic current upper
limit?
Harmonic suppression
measures necessary
Equal to or less
than upper limit
Harmonic suppression
measures unnecessary

42
 EMC and leakage currents

Table 2 Conversion factors for FR-A701 series

Class Circuit Type Conversion Factor (Ki)
Three-phase bridge
3 With reactor (AC side) K32 = 1.8
(Capacitor smoothing)
Table 3 Equivalent Capacity Limits
Received Power Voltage Reference Capacity
6.6kV 50kVA
22/33kV 300kVA
66kV or more 2000kVA
Table 4 Harmonic content (Values of the fundamental current is 100%)
Reactor 5th 7th 11th 13th 17th 19th 23rd 25th
Used (AC side) 38 14.5 7.4 3.4 3.2 1.9 1.7 1.3

1) Calculation of equivalent capacity P0 of harmonic generating equipment

The "equivalent capacity" is the capacity of a 6-pulse converter converted from the capacity of consumer's harmonic
generating equipment and is calculated with the following equation. If the sum of equivalent capacities is higher than
the limit in Table 3, harmonics must be calculated with the following procedure:
P0 = Σ (Ki × Pi) [kVA] * Rated capacity: Determined by the capacity of the applied
Ki: Conversion factor(According to Table 2) motor and found in Table 5. It should be noted that the rated
capacity used here is used to calculate generated harmonic
Pi: Rated capacity of harmonic generating equipment* [kVA] amount and is different from the power supply capacity
i : Number indicating the conversion circuit type required for actual inverter drive.

2) Calculation of outgoing harmonic current

Outgoing harmonic current = fundamental wave current (value converted from received power voltage) × operation
ratio × harmonic content
⋅ Operation ratio: Operation ratio = actual load factor × operation time ratio during 30 minutes
⋅ Harmonic content: Found in Table 4.
Table 5 Rated capacities and outgoing harmonic currents of inverter-driven motors
Rated Current Fundamental Outgoing Harmonic Current Converted from 6.6kV (mA)
Applied (A) Wave Current Rated (With reactor, 100% operation ratio)
Motor Converted Capacity
(kW) 200V 400V from 6.6kV (kVA) 5th 7th 11th 13th 17th 19th 23rd 25th
(mA)
5.5 19.1 9.55 579 6.77 220.0 83.96 42.85 19.69 18.53 11.00 9.843 7.527
7.5 25.6 12.8 776 9.07 294.9 112.5 57.42 26.38 24.83 14.74 13.19 10.09
11 36.9 18.5 1121 13.1 426.0 162.5 82.95 38.11 35.87 21.30 19.06 14.57
15 49.8 24.9 1509 17.6 573.4 218.8 111.7 51.31 48.29 28.67 25.65 19.62 3
18.5 61.4 30.7 1860 21.8 706.8 269.7 137.6 63.24 59.52 35.34 31.62 24.18
22 73.1 36.6 2220 25.9 843.6 321.9 164.3 75.48 71.04 42.18 37.74 28.86
PRECAUTIONS FOR USE OF THE INVERTER

30 98.0 49.0 2970 34.7 1129 430.7 219.8 101.0 95.04 56.43 50.49 38.61
37 121 60.4 3660 42.8 1391 530.7 270.8 124.4 117.1 69.54 62.22 47.58
45 147 73.5 4450 52.1 1691 645.3 329.3 151.3 142.4 84.55 75.65 57.85
55 180 89.9 5450 63.7 2071 790.3 403.3 185.3 174.4 103.6 92.65 70.85

3) Harmonic suppression technique requirement

If the outgoing harmonic current is higher than the maximum value per 1kW (contract power) × contract power, a
harmonic suppression technique is required.
4) Harmonic suppression techniques
No. Item Description
Installation of power factor When used with a series reactor, the power factor improving capacitor has an effect of
1
improving capacitor absorbing harmonic currents.
Transformer multi-phase Use two transformers with a phase angle difference of 30° as in - , - combination
2
operation to provide an effect corresponding to 12 pulses, reducing low-degree harmonic currents.
Passive filter A capacitor and a reactor are used together to reduce impedances at specific frequencies,
3
(AC filter) producing a great effect of absorbing harmonic currents.
This filter detects the current of a circuit generating a harmonic current and generates a
harmonic current equivalent to a difference between that current and a fundamental wave
4 Active filter
current to suppress a harmonic current at a detection point, providing a great effect of
absorbing harmonic currents.

43
Power-off and magnetic contactor (MC)

3.2 Power-off and magnetic contactor (MC)

(1) Inverter input side magnetic contactor (MC)
On the inverter input side, it is recommended to provide an MC for the following purposes.
( Refer to page 4 for selection.)

1) To release the inverter from the power supply when the fault occurs or when the drive is not functioning (e.g.
emergency stop operation).
2) To prevent any accident due to an automatic restart at restoration of power after an inverter stop made by a power failure
3) To separate the inverter from the power supply to ensure safe maintenance and inspection work
The inverter's input side MC is used for the above purpose, select class JEM1038-AC3MC for the inverter input side
current when making an emergency stop during normal operation.
REMARKS
Since repeated inrush currents at power on will shorten the life of the converter circuit (switching life is about 500,000 times.),
frequent starts and stops of the MC must be avoided. Turn ON/OFF the inverter start controlling terminals (STF, STR) to run/stop
the inverter.

• Inverter start/stop circuit example

MCCB MC
R/L1 U As shown on the left, always use the start signal (ON or
Power To the
S/L2 V
motor OFF of STF (STR) signal) to make a start or stop. (Refer
supply
T/L3 W to page 212)
R1/L11 *1 When the power supply is 400V class, install a step-down
S1/L21
*2
transformer.
T *1 *2 Connect the power supply terminals R1/L11, S1/L21 of the
Inverter control circuit to the input side of the MC to hold an alarm
Operation preparation signal when the inverter's protective circuit is activated. At
C1
OFF ON MC this time, remove jumpers across terminals R/L1-R1/L11
B1
and S/L2-S1/L21. (Refer to page 21 for removal of the
MC
A1 jumper.)
RA
STF/STR
Start/Stop SD
RA
MC Start

Stop RA

(2) Handling of the inverter output side magnetic contactor

Switch the magnetic contactor between the inverter and motor only when both the inverter and motor are at a stop.
When the magnetic contactor is turned ON while the inverter is operating, overcurrent protection of the inverter and
such will activate. When an MC is provided to switch to a commercial power supply, for example, it is recommended to
use bypass-inverter switchover function Pr. 135 to Pr. 139 (Refer to page 346).

44
 Inverter-driven 400V class motor

3.3 Inverter-driven 400V class motor

In the PWM type inverter, a surge voltage attributable to wiring constants is generated at the motor terminals.
Especially for a 400V class motor, the surge voltage may deteriorate the insulation. When the 400V class motor is
driven by the inverter, consider the following measures:

zMeasures
It is recommended to take either of the following measures:

(1) Rectifying the motor insulation and limiting the PWM carrier frequency according to the wiring length
For the 400V class motor, use an insulation-enhanced motor.
Specifically,
1)Specify the "400V class inverter-driven insulation-enhanced motor".
2)For the dedicated motor such as the constant-torque motor and low-vibration motor, use the "inverter-driven,
dedicated motor".
3)Set Pr. 72 PWM frequency selection as indicated below according to the wiring length
Wiring Length
50m or less 50m to 100m exceeding 100m
Pr. 72 PWM frequency selection 15 (14.5kHz) or less 9 (9kHz) or less 4 (4kHz) or less
(2) Suppressing the surge voltage on the inverter side
Connect the surge voltage suppression filter (FR-ASF-H/FR-BMF-H) on the inverter output side.

CAUTION
· For details of Pr. 72 PWM frequency selection , refer to page 261.
· For explanation of surge voltage suppression filter (FR-ASF-H/FR-BMF-H), refer to the manual of each option.
· Do not perform Real sensorless vector control and vector control with a surge voltage suppression filter (FR-ASF-H) connected.
· A surge voltage suppression filter (FR-ASF-H/FR-BMF-H) can be used under V/F control and Advanced magnetic flux vector
control.

3
PRECAUTIONS FOR USE OF THE INVERTER

45
Precautions for use of the inverter

3.4 Precautions for use of the inverter

The FR-A701 series is a highly reliable product, but incorrect peripheral circuit making or operation/handling method
may shorten the product life or damage the product.
Before starting operation, always recheck the following items.

(1) Use crimping terminals with insulation sleeve to wire the power supply and motor.

(2) Application of power to the output terminals (U, V, W) of the inverter will damage the inverter. Never perform
such wiring.

(3) After wiring, wire offcuts must not be left in the inverter.
Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting holes in
an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.

(4) Use cables of the size to make a voltage drop 2% maximum.

If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor torque
to decrease especially at the output of a low frequency.
Refer to page 18 for the recommended cable sizes.

(5) The overall wiring length should be within 500m with unshielded wires (within 100m for the operation under
vector control or when using shielded wires).
Especially for long distance wiring, the fast-response current limit function may decrease or the equipment connected to
the output side may malfunction or become faulty under the influence of a charging current due to the stray capacity of
the wiring. Therefore, note the overall wiring length. (Refer to page 20.)

(6) Electromagnetic wave interference

The input/output (main circuit) of the inverter includes high frequency components, which may interfere with the
communication devices (such as AM radios) used near the inverter. In this case, connecting a capacitor type filter will
reduce electromagnetic wave interference.

(7) Do not install a power factor correction capacitor, surge suppressor or capacitor type filter on the inverter
output side.
This will cause the inverter to trip or the capacitor, and surge suppressor to be damaged. If any of the above devices is
installed, immediately remove it.

(8) For some short time after the power is switched off, a high voltage remains in the smoothing capacitor.
When accessing the inverter for inspection, wait for at least 10 minutes after the power supply has been switched off, and
then make sure that the voltage across the main circuit terminals P/+-N/- of the inverter is not more than 30VDC using a
tester, etc. The capacitor is charged with high voltage for some time after power off and it is dangerous.

(9) A short circuit or earth (ground) fault on the inverter output side may damage the inverter modules.
· Fully check the insulation resistance of the circuit prior to inverter operation since repeated short circuits caused by
peripheral circuit inadequacy or an earth (ground) fault caused by wiring inadequacy or reduced motor insulation
resistance may damage the inverter modules.
· Fully check the to-earth (ground) insulation and inter-phase insulation of the inverter output side before power-on.
Especially for an old motor or use in hostile atmosphere, securely check the motor insulation resistance etc.

(10) Do not use the inverter input side magnetic contactor to start/stop the inverter.
Since repeated inrush currents at power ON will shorten the life of the converter circuit (switching life is about 500,000
times), frequent starts and stops of the MC must be avoided.
Always use the start signal (ON/OFF of STF and STR signals) to start/stop the inverter. (Refer to page 44)

(11) Do not apply a voltage higher than the permissible voltage to the inverter I/O signal circuits.
Application of permissible voltage to the inverter I/O signal circuit and incorrect polarity may damage the I/O terminal.
Especially check the wiring to prevent the speed setting potentiometer from being connected incorrectly to short
terminals 10E-5.

(12) Provide electrical and mechanical interlocks for MC1

MC1
and MC2 which are used for bypass operation. Interlock
When the wiring is incorrect or if there is an electronic Power R/L1 U
bypass circuit as shown on the right, the inverter will be IM
supply S/L2 V MC2
damaged by leakage current from the power supply due to
arcs generated at the time of switch-over or chattering T/L3 W Undesirable current
caused by a sequence error. Inverter
(Commercial operation can not be performed with the vector
dedicated motor (SF-V5RU, SF-THY).)

46
 Precautions for use of the inverter

(13) If the machine must not be restarted when power is restored after a power failure, provide a magnetic contactor
in the inverter's input side and also make up a sequence which will not switch on the start signal.
If the start signal (start switch) remains on after a power failure, the inverter will automatically restart as soon as the
power is restored.

(14) Inverter input side magnetic contactor (MC)

On the inverter input side, connect an MC for the following purposes. (Refer to page 4 for selection.)
1)To release the inverter from the power supply when a fault occurs or when the drive is not functioning (e.g. emergency
stop operation). For example, MC avoids overheat or burnout of the brake resistor when heat capacity of the resistor is
insufficient or brake regenerative transistor is damaged with short while connecting an optional brake resistor.
2)To prevent any accident due to an automatic restart at restoration of power after an inverter stop made by a power
failure
3)To separate the inverter from the power supply to ensure safe maintenance and inspection work.
The inverter's input side MC is used for the above purpose, select class JEM1038-AC3 MC for the inverter input
side current when making an emergency stop during normal operation.

(15) Handling of inverter output side magnetic contactor

Switch the magnetic contactor between the inverter and motor only when both the inverter and motor are at a stop. When
the magnetic contactor is turned ON while the inverter is operating, overcurrent protection of the inverter and such will
activate. When MC is provided for switching to the commercial power supply, for example, switch it ON/OFF after the
inverter and motor have stopped.

(16) A motor with encoder is necessary for vector control. In addition, connect the encoder directly to the backlash-
free motor shaft. (An encoder is not necessary for Real sensorless vector control.)

(17) Countermeasures against inverter-generated EMI

If electromagnetic noise generated from the inverter causes frequency setting signal to fluctuate and motor rotation
speed to be unstable when changing motor speed with analog signal, the following countermeasures are effective.
· Do not run the signal cables and power cables (inverter I/O cables) in parallel with each other and do not bundle them.
· Run signal cables as far away as possible from power cables (inverter I/O cables).
· Use shield cables as signal cables.
· Install a ferrite core on the signal cable (Example: ZCAT3035-1330 TDK).

(18) Instructions for overload operation

When performing an operation of frequent start/stop with the inverter, rise/fall in the temperature of the transistor element
of the inverter will repeat due to a continuous flow of large current, shortening the life from thermal fatigue. Since thermal
fatigue is related to the amount of current, the life can be increased by reducing current at locked condition, starting
current, etc. Decreasing current may increase the life. However, decreasing current will result in insufficient torque and
the inverter may not start. Therefore, choose the inverter which has enough allowance for current (up to 2 rank larger in
capacity).

(19) Make sure that the specifications and rating match the system requirements.

3
PRECAUTIONS FOR USE OF THE INVERTER

47
 Failsafe of the system which uses the
inverter

3.5 Failsafe of the system which uses the inverter

When a fault occurs, the inverter trips to output a fault signal. However, a fault output signal may not be output at an inverter
fault occurrence when the detection circuit or output circuit fails, etc. Although Mitsubishi assures best quality products,
provide an interlock which uses inverter status output signals to prevent accidents such as damage to machine when the
inverter fails for some reason and at the same time consider the system configuration where failsafe from outside the inverter,
without using the inverter, is enabled even if the inverter fails.

(1) Interlock method which uses the inverter status output signals
By combining the inverter status output signals to provide an interlock as shown below, an inverter alarm can be
detected.

No. Interlock Method Check Method Used Signals Refer to Page

Inverter protective Operation check of an alarm contact Fault output signal
1) 215
function operation Circuit error detection by negative logic (ALM signal)
Operation ready signal
2) Inverter running status Operation ready signal check 215
(RY signal)
Start signal
Logic check of the start signal and
3) Inverter running status (STF signal, STR signal) 207
running signal
Running signal (RUN signal)
Start signal
Logic check of the start signal and output (STF signal, STR signal)
4) Inverter running status 207, 215
current Output current detection signal
(Y12 signal)

1) Check by the output of the inverter fault signal Inverter fault occurrence
Output frequency

When the fault occurs and trips the inverter, the fault output (output shutoff)
signal (ALM signal) is output (ALM signal is assigned to
terminal A1B1C1 in the initial setting).
Check that the inverter functions properly.
In addition, negative logic can be set (on when the inverter is Time
ALM ON OFF
normal, off when the fault occurs). (when output
at NC contact)
ON OFF
RES Reset processing
(about 1s)
Reset ON
2) Checking the inverter operating status by the inverter Power
ON OFF
operation ready completion signal supply
Operation ready signal (RY signal) is output when the STF ON OFF

inverter power is ON and the inverter becomes operative. ON

RH
Check if the RY signal is output after powering on the
inverter.
Output frequency

DC injection brake
operation point

3) Checking the inverter operating status by the start signal DC injection

brake operation
input to the inverter and inverter running signal.
The inverter running signal (RUN signal) is output when the Pr. 13 Starting frequency

inverter is running (RUN signal is assigned to terminal RUN Reset Time

processing
in the initial setting).
ON OFF
Check if RUN signal is output when inputting the start signal RY

to the inverter (forward signal is STF signal and reverse RUN ON OFF

signal is STR signal). For logic check, note that RUN signal
is output for the period from the inverter decelerates until
output to the motor is stopped, configure a sequence
considering the inverter deceleration time

48
 Failsafe of the system which uses the
inverter
4) Checking the motor operating status by the start signal input to the inverter and inverter output current detection signal.
The output current detection signal (Y12 signal) is output when the inverter operates and currents flows in the motor.
Check if Y12 signal is output when inputting the start signal to the inverter (forward signal is STF signal and reverse
signal is STR signal). Note that the current level at which Y12 signal is output is set to 150% of the inverter rated current
in the initial setting, it is necessary to adjust the level to around 20% using no load current of the motor as reference with
Pr. 150 Output current detection level.
For logic check, as same as the inverter running signal (RUN signal), the inverter outputs for the period from the inverter
decelerates until output to the motor is stopped, configure a sequence considering the inverter deceleration time.

Output Pr. 190 to Pr. 196 Setting

Signal Positive logic Negative logic y When using various signals, assign functions to Pr.190 to Pr.
ALM 99 199 196 (output terminal function selection) referring to the table on
RY 11 111 the left.
RUN 0 100
Y12 12 112

CAUTION
Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

(2) Backup method outside the inverter

Even if the interlock is provided by the inverter status signal, enough failsafe is not ensured depending on the failure
status of the inverter itself. For example, when the inverter CPU fails, even if the interlock is provided using the inverter
fault output signal, start signal and RUN signal output, there is a case where a fault output signal is not output and RUN
signal is kept output even if an inverter fault occurs.
Provide a speed detector to detect the motor speed and current detector to detect the motor current and consider the
backup system such as checking up as below according to the level of importance of the system.

1) Start signal and actual operation check

Check the motor running and motor current while the start signal is input to the inverter by comparing the start signal to
the inverter and detected speed of the speed detector or detected current of the current detector. Note that the motor
current runs as the motor is running for the period until the motor stops since the inverter starts decelerating even if the
start signal turns OFF. For the logic check, configure a sequence considering the inverter deceleration time. In addition, it
is recommended to check the three-phase current when using the current detector.

2) Command speed and actual operation check

Check if there is no gap between the actual speed and commanded speed by comparing the inverter speed command
3
and detected speed of the speed detector.

Controller
PRECAUTIONS FOR USE OF THE INVERTER

System failure

Inverter Sensor
(speed, temperature,
air volume, etc.)

To the alarm detection sensor

49
MEMO

50
 4 PARAMETERS

This chapter explains the "PARAMETERS" for use of this

product.
Always read this instructions before use.

The following marks are used to indicate the controls

as below.
V/F ...V/F control 2
Magnetic flux ...Advanced magnetic flux vector control

Sensorless ...Real sensorless vector control

Vector ...Vector control

(Parameters without any mark are valid for all control.) 3

7
51
Operation panel (FR-DU07)

4.1 Operation panel (FR-DU07)

4.1.1 Parts of the operation panel (FR-DU07)

Operation mode indicator

PU: Lit to indicate PU operation mode.
EXT: Lit to indicate External operation mode.
NET: Lit to indicate Network operation mode.

Rotation direction indicator

FWD: Lit during forward rotation
REV: Lit during reverse rotation
Lit: Forward/reverse operation
Flickering: When the frequency command is not
Unit indicator given even if the forward/reverse
· Hz: Lit to indicate frequency. command is given.
· A: Lit to indicate current. When the MRS signal is input.
· V: Lit to indicate voltage.
(Flicker when the set frequency monitor is Monitor indicator
displayed.) Lit to indicate monitoring mode.

No function
Monitor (4-digit LED)
Shows the frequency, parameter
number, etc.
Start command
forward rotation
Start command
reverse rotation
Setting dial
(Setting dial: Mitsubishi inverter Stop operation
dial) Used to stop Run command.
Used to change the Fault can be reset when
frequency setting and protective function is activated
parameter settings. (fault).

Used to set each setting.

If pressed during operation, monitor
changes as below;
Running Output Output
Mode frequency current voltage
*
switchover
Used to change * Energy saving monitor is displayed when the
each setting mode. energy saving monitor of Pr. 52 is set.

Operation mode switchover

Used to switch between the PU and External operation mode.
When using External operation mode (operation using a separately connected
frequency setting potentiometer and start signal), press this key to light up the
EXT indicator. (Change the Pr.79 setting to use the combined mode.)
PU: PU operation mode
EXT: External operation mode

52
 Operation panel (FR-DU07)

4.1.2 Basic operation (factory setting)

Operation mode switchover

At power-ON (External operation mode)

PU Jog operation mode

(Refer to page 54)

(Example)
Monitor/frequency setting

Value change and frequency flicker.

PU operation mode
(output frequency monitor) Frequency setting has been
written and completed!!

Output current monitor Output voltage monitor

Parameter setting

Display the present

Parameter setting mode setting

(Example)

Value change Parameter and a setting value

flicker alternately.
Parameter write is completed!!

Parameter clear All parameter Fault clear

clear

4
Parameter copy
PARAMETERS

[Operation for displaying faults history] (Refer to page 378)

Faults history

Past eight faults can be displayed.

(The latest fault is ended by ".".)
When no fault history exists, is displayed.

53
Operation panel (FR-DU07)

4.1.3 Changing the parameter setting value

Changing example Change the Pr. 1 Maximum frequency .

Operation Display
1.Screen at power-ON
The monitor display appears.

2.Press to choose the PU operation PU indicator is lit.

mode.

The parameter
3.Press to choose the parameter number read
setting mode. previously appears.

4. Pr. 1) appears.

5.Press to read the currently set value.

" "(initial value) appears.

6.Turn to change it to the set

value " ".

7.Press to set.

Flicker ··· Parameter setting complete!!

· By turning , you can read another parameter.
· Press to show the setting again.
· Press twice to show the next parameter.
· Press twice to return the monitor to frequency monitor.

to are displayed ... Why?

appears. ...... Write disable error
appears. ...... Write error during operation
appears. ...... Calibration error
appears. ..... Mode designation error
For details refer to page 384.

REMARKS
The number of digits displayed on the operation panel (FR-DU07) is four.
If the values to be displayed have five digits or more including decimal places, the fifth or later numerals can not be displayed nor
set.
(Example) When Pr. 1
When 60Hz is set, 60.00 is displayed.
When 120Hz is set, 120.0 is displayed and second decimal place is not displayed nor set.

4.1.4 Setting dial push

Push the setting dial ( ) to display the set frequency currently set.

54
 Parameter list

4.2 Parameter list

4.2.1 Parameter list
For simple variable-speed operation of the inverter, the initial setting of the parameters may be used as they are. Set the
necessary parameters to meet the load and operational specifications. Parameter setting, change and check can be made
from the operation panel (FR-DU07).

Parameter List
REMARKS
⋅ indicates simple mode parameters. (initially set to extended mode)
⋅ The shaded parameters in the table allow its setting to be changed during operation even if "0" (initial value) is set in Pr. 77 Parameter write
selection.
⋅ Refer to the appendix 4 (page 439) for instruction codes for communication and availability of parameter clear, all clear, and parameter
copy of each parameter.
⋅ Parameters with have different specifications according to the date assembled. Refer to page 456 to check the SERIAL number.

Func- Minimum Refer Customer

tion Parameter Name Setting Range Setting Initial Value to Setting
Increments Page
0 Torque boost 0 to 30% 0.1% 3/2% *1 129
1 Maximum frequency 0 to 120Hz 0.01Hz 120Hz 140
2 Minimum frequency 0 to 120Hz 0.01Hz 0Hz 140
3 Base frequency 0 to 400Hz 0.01Hz 60Hz 142
Basic functions

4 Multi-speed setting (high speed) 0 to 400Hz 0.01Hz 60Hz 148

5 Multi-speed setting (middle speed) 0 to 400Hz 0.01Hz 30Hz 148
6 Multi-speed setting (low speed) 0 to 400Hz 0.01Hz 10Hz 148
7 Acceleration time 0 to 3600/360s 0.1/0.01s 5/15s *1 155
8 Deceleration time 0 to 3600/360s 0.1/0.01s 5/15s *1 155
Rated inverter
9 Electronic thermal O/L relay 0 to 500A 0.01A 165
current
185
DC injection

10 DC injection brake operation frequency 0 to 120Hz, 9999 0.01Hz 3Hz

brake

11 DC injection brake operation time 0 to 10s, 8888 0.1s 0.5s 185

12 DC injection brake operation voltage 0 to 30% 0.1% 4/2% *1 185
⎯ 13 Starting frequency 0 to 60Hz 0.01Hz 0.5Hz 157
⎯ 14 Load pattern selection 0 to 5 1 0 144

15 Jog frequency 0 to 400Hz 0.01Hz 5Hz 150

operation
Jog

16 Jog acceleration/deceleration time 0 to 3600/360s 0.1/0.01s 0.5s 150

⎯ 17 MRS input selection 0, 2, 4 1 0 210

⎯ 18 High speed maximum frequency 120 to 400Hz 0.01Hz 120Hz 140
⎯ 19 Base frequency voltage 0 to 1000V, 8888, 9999 0.1V 9999 142
Acceleration/deceleration reference
Acceleration/
deceleration

20 1 to 400Hz 0.01Hz 60Hz 155

frequency
times

Acceleration/deceleration time
21 0, 1 1 0 155
increments
4
Stall prevention operation level
prevention

22 0 to 400% 0.1% 150% 135

(torque limit level )
Stall

Stall prevention operation level

PARAMETERS

23 0 to 200%, 9999 0.1% 9999 135

compensation factor at double speed
Multi-speed
setting

24 to 27 Multi-speed setting (4 speed to 7 speed) 0 to 400Hz, 9999 0.01Hz 9999 148

Multi-speed input compensation

⎯ 28 0, 1 1 0 152
selection
Acceleration/deceleration pattern
⎯ 29 0 to 5 1 0 158
selection
31 Frequency jump 1A 0 to 400Hz, 9999 0.01Hz 9999 141
32 Frequency jump 1B 0 to 400Hz, 9999 0.01Hz 9999 141
Frequency

33 Frequency jump 2A 0 to 400Hz, 9999 0.01Hz 9999 141

jump

34 Frequency jump 2B 0 to 400Hz, 9999 0.01Hz 9999 141

35 Frequency jump 3A 0 to 400Hz, 9999 0.01Hz 9999 141
36 Frequency jump 3B 0 to 400Hz, 9999 0.01Hz 9999 141

55
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
⎯ 37 Speed display 0, 1 to 9998 1 0 227
41 Up-to-frequency sensitivity 0 to 100% 0.1% 10% 222
Frequency
detection

42 Output frequency detection 0 to 400Hz 0.01Hz 6Hz 222

Output frequency detection for reverse
43
rotation
0 to 400Hz, 9999 0.01Hz 9999 222
Parameter List

44 Second acceleration/deceleration time 0 to 3600/360s 0.1/0.01s 5s 155

45 Second deceleration time 0 to 3600/360s, 9999 0.1/0.01s 9999 155
Second functions

46 Second torque boost 0 to 30%, 9999 0.1% 9999 129

47 Second V/F (base frequency) 0 to 400Hz, 9999 0.01Hz 9999 142
Second stall prevention operation
48 current
0 to 220% 0.1% 150% 135
Second stall prevention operation
49 0 to 400Hz, 9999 0.01Hz 0Hz 135
frequency
50 Second output frequency detection 0 to 400Hz 0.01Hz 30Hz 222
51 Second electronic thermal O/L relay 0 to 500A, 9999 0.01A 9999 165
0, 5 to 8, 10 to 14, 17 to
52
DU/PU main display data selection 20, 22 to 25, 32 to 35, 1 0 229
Monitor functions

50 to 57, 65, 66, 100

1 to 3, 5 to 8, 10 to 14,
54 FM terminal function selection 17, 18, 21, 24, 32 to 34, 1 1 229
50, 52, 53
55 Frequency monitoring reference 0 to 400Hz 0.01Hz 60Hz 236
Rated inverter
56 Current monitoring reference 0 to 500A 0.01A current 236
Automatic restart

57 Restart coasting time 0, 0.1 to 5s, 9999 0.1s 9999 243

58 Restart cushion time 0 to 60s 0.1s 1s 243

⎯ 59 Remote function selection 0 to 3 1 0 152

⎯ 60 Energy saving control selection 0, 4 1 0 255
146,
Automatic acceleration/

61 Reference current 0 to 500A, 9999 0.01A 9999

162
deceleration

62 Reference value at acceleration 0 to 220%, 9999 0.1% 9999 162

63 Reference value at deceleration 0 to 220%, 9999 0.1% 9999 162

64 Starting frequency for elevator mode 0 to 10Hz, 9999 0.01Hz 9999 146

⎯ 65 Retry selection 0 to 5 1 0 250

Stall prevention operation reduction

⎯ 66 0 to 400Hz 0.01Hz 60Hz 135
starting frequency

67 Number of retries at fault occurrence 0 to 10, 101 to 110 1 0 250

Retry

68 Retry waiting time 0 to 10s 0.1s 1s 250

69 Retry count display erase 0 1 0 250
0 to 8, 13 to 18, 30, 33, 131,
⎯ 71 Applied motor 1 0
34, 40, 43, 44, 50, 53, 54 169
⎯ 72 PWM frequency selection 0 to 15 1 2 261
263,
⎯ 73 Analog input selection 0 to 7, 10 to 17 1 1
267
⎯ 74 Input filter time constant 0 to 8 1 1 269
Reset selection/disconnected PU
⎯ 75 0 to 3, 14 to 17 1 14 282
detection/PU stop selection

⎯ 76 Fault code output selection 0 to 2 1 0 252

⎯ 77 Parameter write selection 0 to 2 1 0 284
⎯ 78 Reverse rotation prevention selection 0 to 2 1 0 285
290,
⎯ 79 Operation mode selection 0 to 4, 6, 7 1 0
298

56
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
131,
80 Motor capacity 0.4 to 55kW, 9999 0.01kW 9999
171
2, 4, 6, 8, 10, 12, 14, 16, 131,
81 Number of motor poles 1 9999
18, 20, 9999 171
82 Motor excitation current 0 to 500A, 9999 0.01A 9999 171

Parameter List
83 Rated motor voltage 0 to 1000V 0.1V 200V/400V*4 171
Motor constants

84 Rated motor frequency 10 to 120Hz 0.01Hz 60Hz 171

89 Speed control gain (magnetic flux vector) 0 to 200%, 9999 0.1% 9999 131
90 Motor constant (R1) 0 to 50Ω, 9999 0.001Ω 9999 171
91 Motor constant (R2) 0 to 50Ω, 9999 0.001Ω 9999 171
92 Motor constant (L1) 0 to 50Ω (0 to 1000mH), 9999 0.001Ω (0.1mH) 9999 171
93 Motor constant (L2) 0 to 50Ω (0 to 1000mH), 9999 0.001Ω (0.1mH) 9999 171
94 Motor constant (X) 0 to 500Ω (0 to 100%), 9999 0.01Ω (0.1%) 9999 171
95 Online auto tuning selection 0 to 2 1 0 181
96 Auto tuning setting/status 0, 1, 101 1 0 171
100 V/F1(first frequency) 0 to 400Hz, 9999 0.01Hz 9999 147
101 V/F1(first frequency voltage) 0 to 1,000V 0.1V 0V 147
Adjustable 5 points V/F

102 V/F2(second frequency) 0 to 400Hz, 9999 0.01Hz 9999 147

103 V/F2(second frequency voltage) 0 to 1,000V 0.1V 0V 147
104 V/F3(third frequency) 0 to 400Hz, 9999 0.01Hz 9999 147
105 V/F3(third frequency voltage) 0 to 1,000V 0.1V 0V 147
106 V/F4(fourth frequency) 0 to 400Hz, 9999 0.01Hz 9999 147
107 V/F4(fourth frequency voltage) 0 to 1,000V 0.1V 0V 147
108 V/F5(fifth frequency) 0 to 400Hz, 9999 0.01Hz 9999 147
109 V/F5(fifth frequency voltage) 0 to 1,000V 0.1V 0V 147
110 Third acceleration/deceleration time 0 to 3600/360s, 9999 0.1/0.01s 9999 155
111 Third deceleration time 0 to 3600/360s, 9999 0.1/0.01s 9999 155
Third functions

112 Third torque boost 0 to 30%, 9999 0.1% 9999 129

113 Third V/F (base frequency) 0 to 400Hz, 9999 0.01Hz 9999 142
114 Third stall prevention operation current 0 to 220% 0.1% 150% 135
Third stall prevention operation
115 0 to 400Hz 0.01Hz 0 135
frequency
116 Third output frequency detection 0 to 400Hz 0.01Hz 60Hz 222
117 PU communication station number 0 to 31 1 0 310
118 PU communication speed 48, 96, 192, 384 1 192 310
communication

119 PU communication stop bit length 0, 1, 10, 11 1 1 310

PU connector

120 PU communication parity check 0 to 2 1 2 310

121 Number of PU communication retries 0 to10, 9999 1 1 310 4
122 PU communication check time interval 0, 0.1 to 999.8s, 9999 0.1s 9999 310
123 PU communication waiting time setting 0 to 150ms, 9999 1 9999 310
PARAMETERS

124 PU communication CR/LF selection 0 to 2 1 1 310

Terminal 2 frequency setting gain
⎯ 125 0 to 400Hz 0.01Hz 60Hz 271
frequency
Terminal 4 frequency setting gain
⎯ 126 0 to 400Hz 0.01Hz 60Hz 271
frequency

57
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
PID control automatic switchover
127 0 to 400Hz, 9999 0.01Hz 9999 338
frequency
10, 11, 20, 21, 50, 51, 60,
128 PID action selection 1 10 338
61
PID operation

129 PID proportional band 0.1 to 1000%, 9999 0.1% 100% 338
Parameter List

130 PID integral time 0.1 to 3600s, 9999 0.1s 1s 338

131 PID upper limit 0 to 100%, 9999 0.1% 9999 338
132 PID lower limit 0 to 100%, 9999 0.1% 9999 338
133 PID action set point 0 to 100%, 9999 0.01% 9999 338
134 PID differential time 0.01 to 10.00s, 9999 0.01s 9999 338
135 Electronic bypass sequence selection 0, 1 1 0 346

136 MC switchover interlock time 0 to 100s 0.1s 1s 346

Bypass

137 Start waiting time 0 to 100s 0.1s 0.5s 346

138 Bypass selection at a fault 0, 1 1 0 346

Automatic switchover frequency from
139 0 to 60Hz, 9999 0.01Hz 9999 346
inverter to bypass operation
Backlash acceleration stopping
140 0 to 400Hz 0.01Hz 1Hz 158
frequency
measures
Backlash

141 Backlash acceleration stopping time 0 to 360s 0.1s 0.5s 158

Backlash deceleration stopping
142 0 to 400Hz 0.01Hz 1Hz 158
frequency
143 Backlash deceleration stopping time 0 to 360s 0.1s 0.5s 158
0, 2, 4, 6, 8, 10, 102,
⎯ 144 Speed setting switchover
104, 106, 108, 110
1 4 227
PU

145 PU display language selection 0 to 7 1 0 371

148 Stall prevention level at 0V input 0 to 220% 0.1% 150% 135
Current detection

149 Stall prevention level at 10V input 0 to 220% 0.1% 200% 135
150 Output current detection level 0 to 220% 0.1% 150% 224
Output current detection signal delay
151 0 to 10s 0.1s 0s 224
time
152 Zero current detection level 0 to 220% 0.1% 5% 224
153 Zero current detection time 0 to 1s 0.01s 0.5s 224
Voltage reduction selection during stall
⎯ 154 0, 1 1 1 135
prevention operation
RT signal function validity condition
⎯ 155 0, 10 1 0 211
selection
⎯ 156 Stall prevention operation selection 0 to 31, 100, 101 1 0 135
⎯ 157 OL signal output timer 0 to 25s, 9999 0.1s 0s 135
1 to 3, 5 to 8, 10 to 14,
⎯ 158 AM terminal function selection 17, 18, 21, 24, 32 to 34, 1 1 229
50, 52, 53
Automatic switchover frequency range
⎯ 159
from bypass to inverter operation
0 to 10Hz, 9999 0.01Hz 9999 346

⎯ 160 User group read selection 0, 1, 9999 1 0 285

Frequency setting/key lock operation
⎯ 161
selection
0, 1, 10, 11 1 0 371
Automatic restart after instantaneous
Automatic restart

162 0 to 2, 10 to 12 1 0 243
power failure selection
functions

163 First cushion time for restart 0 to 20s 0.1s 0s 243

164 First cushion voltage for restart 0 to 100% 0.1% 0% 243
Stall prevention operation level for
165 0 to 220% 0.1% 150% 243
restart
Current detection

Output current detection signal

166 0 to 10s, 9999 0.1s 0.1s 224
retention time

Output current detection operation

167 0, 1 1 0 224
selection

58
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
⎯ 168
Parameter for manufacturer setting. Do not set.
⎯ 169
Cumulative monitor

170
Watt-hour meter clear 0, 2, 10, 9999 1 9999 229

Parameter List
clear

171 Operation hour meter clear 0, 9999 1 9999 229

User group registered display/batch

172 9999, (0 to 16) 1 0 285
User group

clear

173 User group registration 0 to 999, 9999 1 9999 285

174 User group clear 0 to 999, 9999 1 9999 285

0 to 9, 12 to 20, 22 to 28,
178 STF terminal function selection 42 to 44, 60, 62, 64 to 69, 1 60 207
74, 9999
0 to 9, 12 to 20, 22 to 28,
179 STR terminal function selection 42 to 44, 61, 62, 64 to 69, 1 61 207
Input terminal function assignment

74, 9999
180 RL terminal function selection 1 0 207
181 RM terminal function selection 0 to 9, 12 to 20, 22 to 28, 1 1 207
42 to 44, 62, 64 to 69, 74,
182 RH terminal function selection 9999 1 2 207
183 RT terminal function selection 1 3 207
0 to 9, 12 to 20, 22 to 28,
184 AU terminal function selection 42 to 44, 62 to 69, 74, 1 4 207
9999
185 JOG terminal function selection 1 5 207
186 CS terminal function selection 1 6 207
0 to 9, 12 to 20, 22 to 28,
187 MRS terminal function selection 42 to 44, 62, 64 to 69, 74, 1 24 207
9999
188 STOP terminal function selection 1 25 207
189 RES terminal function selection 1 62 207
190 RUN terminal function selection 0 to 6, 8, 10 to 20, 25 to 1 0 215
28, 30 to 36, 39, 41 to 47,
Output terminal function assignment

191 SU terminal function selection 64, 70, 84, 90 to 99, 1 1 215

192 IPF terminal function selection 100 to 106, 108, 110 to 1 2 215
116, 120, 125 to 128, 130
193 OL terminal function selection to 136, 139, 141 to 147, 1 3 215
164, 170, 184, 190 to
194 FU terminal function selection 1 4 215
199, 9999
0 to 6, 8, 10 to 20, 25 to
28, 30 to 36, 39, 41 to 47,
195 ABC1 terminal function selection 1 99 215
64, 70, 84, 90, 91, 94 to
99, 100 to 106, 108, 110
to 116, 120, 125 to 128,
130 to 136, 139, 141 to 4
196 ABC2 terminal function selection
147, 164, 170, 184, 190,
1 9999 215
191, 194 to 199, 9999
PARAMETERS
Multi-speed
setting

Multi-speed setting (8 speed to 15

232 to 239 0 to 400Hz, 9999 0.01Hz 9999 148
speed)

⎯ 240 Soft-PWM operation selection 0, 1 1 1 261

⎯ 241 Analog input display unit switchover 0, 1 1 0 271
Terminal 1 added compensation
⎯ 242 0 to 100% 0.1% 100% 267
amount (terminal 2)
Terminal 1 added compensation
⎯ 243 0 to 100% 0.1% 75% 267
amount (terminal 4)
⎯ 244 Cooling fan operation selection 0, 1 1 1 363

59
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page

245 Rated slip 0 to 50%, 9999 0.01% 9999 134

Slip compensation

246 Slip compensation time constant 0.01 to 10s 0.01s 0.5s 134
Parameter List

Constant-power range slip

247 0, 9999 1 9999 134
compensation selection
0 to 100s,1000 to 1100s
⎯ 250 Stop selection 0.1s 9999 189
8888, 9999
⎯ 251 Output phase loss protection selection 0, 1 1 1 253
Frequency compensation

252 Override bias 0 to 200% 0.1% 50% 267

function

253 Override gain 0 to 200% 0.1% 150% 267

255 Life alarm status display (0 to 15) 1 0 364

256 Inrush current limit circuit life display (0 to 100%) 1% 100% 364
Life check

257 Control circuit capacitor life display (0 to 100%) 1% 100% 364

258 Main circuit capacitor life display (0 to 100%) 1% 100% 364
259 Main circuit capacitor life measuring 0, 1 1 0 364
261 Power failure stop selection 0, 1, 2, 11, 12 1 0 247
Subtracted frequency at deceleration
262 0.01Hz 3Hz 247
Power failure stop

0 to 20Hz
start
263 Subtraction starting frequency 0 to 120Hz, 9999 0.01Hz 60Hz 247
264 Power-failure deceleration time 1 0 to 3600/360s 0.1/0.01s 5s 247
0 to 3600s/360s,
265 Power-failure deceleration time 2 0.1/0.01s 9999 247
9999
Power failure deceleration time
266 0 to 400Hz 0.01Hz 60Hz 247
switchover frequency
⎯ 267 Terminal 4 input selection 0 to 2 1 0 263
⎯ 268 Monitor decimal digits selection 0,1, 9999 1 9999 229
⎯ 269 Parameter for manufacturer setting. Do not set.
Stop-on contact/load torque high- 190,
⎯ 270 0 to 3 1 0
speed frequency control selection 351
high speed frequency control

271 High-speed setting maximum current 0 to 220% 0.1% 50% 351

Load torque

272 Middle-speed setting minimum current 0 to 220% 0.1% 100% 351

273 Current averaging range 0 to 400Hz, 9999 0.01Hz 9999 351

274 Current averaging filter time constant 1 to 4000 1 16 351

Stop-on contact

Stop-on contact excitation current low-

275 0 to 1000%, 9999 0.1% 9999 190
speed multiplying factor
control

PWM carrier frequency at stop-on

276 0 to 9, 9999 1 9999 190
contact

60
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
278 Brake opening frequency 0 to 30Hz 0.01Hz 3Hz 193
279 Brake opening current 0 to 220% 0.1% 130% 193
Brake sequence function

280 Brake opening current detection time 0 to 2s 0.1s 0.3s 193

281 Brake operation time at start 0 to 5s 0.1s 0.3s 193

Parameter List
282 Brake operation frequency 0 to 30Hz 0.01Hz 6Hz 193
283 Brake operation time at stop 0 to 5s 0.1s 0.3s 193
Deceleration detection function
284 0, 1 1 0 193
selection
Overspeed detection frequency 100,
285 0 to 30Hz, 9999 0.01Hz 9999
(Speed deviation excess detection frequency) 193
Droop control

286 Droop gain 0 to 100% 0.1% 0% 354

287 Droop filter time constant 0 to 1s 0.01s 0.3s 354

288 Droop function activation selection 0 to 2, 10, 11 1 0 354

236,
⎯ 291 Pulse train I/O selection 0, 1, 10, 11, 20, 21, 100 1 0
356
146,
⎯ 292 Automatic acceleration/deceleration 0, 3, 5 to 8, 11 1 0 162,
193
Acceleration/deceleration separate
⎯ 293 0 to 2 1 0 162
selection
⎯ 294 UV avoidance voltage gain 0 to 200% 0.1% 100% 247
296 0 to 6, 99, 100 to 106,
Password

Password lock level 1 9999 287

function

199, 9999
297 (0 to 5), 1000 to 9998,
Password lock/unlock 1 9999 287
9999
Rotation direction detection selection
⎯ 299 0, 1, 9999 1 0 243
at restarting
331 RS-485 communication station number 0 to 31(0 to 247) 1 0 310
3, 6, 12, 24,
332 RS-485 communication speed 1 96 310
48, 96, 192, 384
333 RS-485 communication stop bit length 0, 1, 10, 11 1 1 310
RS-485 communication parity check
334 selection
0 to 2 1 2 310

335 RS-485 communication retry count 0 to 10, 9999 1 1 310

RS-485 communication

RS-485 communication check time

336 0 to 999.8s, 9999 0.1s 0s 310
interval
RS-485 communication waiting time
337 0 to 150ms, 9999 1 9999 310
setting
Communication operation command
338 0, 1 1 0 299
source
Communication speed command
339 0 to 2 1 0 299
source
Communication startup mode
340 selection
0, 1, 2, 10, 12 1 0 298

341
RS-485 communication CR/LF
0 to 2 1 1 310
4
selection
Communication EEPROM write
342 0, 1 1 0 311
selection
PARAMETERS

343 Communication error count ⎯ 1 0 324

61
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
350 *2 Stop position command selection 0, 1, 9999 1 9999 196
351 *2 Orientation speed 0 to 30Hz 0.01Hz 2Hz 196
352 *2 Creep speed 0 to 10Hz 0.01Hz 0.5Hz 196
353 *2 Creep switchover position 0 to 16383 1 511 196
354 *2 Position loop switchover position 0 to 8191 1 96 196
Parameter List

355 *2 DC injection brake start position 0 to 255 1 5 196

Orientation control

356 *2 Internal stop position command 0 to 16383 1 0 196

357 *2 Orientation in-position zone 0 to 255 1 5 196
358 *2 Servo torque selection 0 to 13 1 1 196
359 *2 Encoder rotation direction 0, 1 1 1 196
360 *2 16 bit data selection 0 to 127 1 0 196
361 *2 Position shift 0 to 16383 1 0 196
362 *2 Orientation position loop gain 0.1 to 100 0.1 1 196
363 *2 Completion signal output delay time 0 to 5s 0.1s 0.5s 196
364 *2 Encoder stop check time 0 to 5s 0.1s 0.5s 196
365 *2 Orientation limit 0 to 60s, 9999 1s 9999 196
366 *2 Recheck time 0 to 5s, 9999 0.1s 9999 196
367 *2 Speed feedback range 0 to 400Hz, 9999 0.01Hz 9999 359
368 *2 Feedback gain 0 to 100 0.1 1 359
feedback
Encoder

196,
369 *2 Number of encoder pulses 0 to 4096 1 1024
359
374 Overspeed detection level 0 to 400Hz 0.01Hz 140Hz 253
Encoder signal loss detection enable/
376 *2 0, 1 1 0 253
disable selection
S-pattern acceleration/

380 Acceleration S-pattern 1 0 to 50% 1% 0 158

deceleration C

381 Deceleration S-pattern 1 0 to 50% 1% 0 158

382 Acceleration S-pattern 2 0 to 50% 1% 0 158

383 Deceleration S-pattern 2 0 to 50% 1% 0 158

Orientation control Pulse train input

384 Input pulse division scaling factor 0 to 250 1 0 356

385 Frequency for zero input pulse 0 to 400Hz 0.01Hz 0 356

386 Frequency for maximum input pulse 0 to 400Hz 0.01Hz 60Hz 356

393 *2 Orientation selection 0 to 2 1 0 196

396 *2 Orientation speed gain (P term) 0 to 1000 1 60 196
397 *2 Orientation speed integral time 0 to 20s 0.001s 0.333s 196
398 *2 Orientation speed gain (D term) 0 to 100 0.1 1 196
399 *2 Orientation deceleration ratio 0 to 1000 1 20 196
419 *2 117,
Position command source selection 0 to 2 1 0
120
Command pulse scaling factor
420 *2 0 to 32767 1 1 122
numerator
Command pulse scaling factor
421 *2 0 to 32767 1 1 122
denominator
422 *2 Position loop gain 150s-1 -1 -1 124
0 to 1s 25s
Position control

423 *2 Position feed forward gain 0 to 100% 1% 0 124

Position command acceleration/
424 *2 0 to 50s 0.001s 0s 122
deceleration time constant
425 *2 Position feed forward command filter 0 to 5s 0.001s 0s 124
426 *2 In-position width 0 to 32767pulse 1 100 123
427 *2 Excessive level error 0 to 400K, 9999 1K 40K 123
428 *2 Command pulse selection 0 to 5 1 0 120
429 *2 Clear signal selection 0, 1 1 1 120
430 *2 Pulse monitor selection 0 to 5, 9999 1 9999 120

62
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
0 to 8, 13 to 18, 30, 33,
450 Second applied motor 34, 40, 43, 44, 50, 53, 54, 1 9999 131,
169
9999
Second motor control method
451 10, 11, 12, 20, 9999 1 9999 131
selection

Parameter List
453 Second motor capacity 0.4 to 55kW, 9999 0.01kW 9999 131
Second motor constants

454 Number of second motor poles 2, 4, 6, 8, 10, 9999 1 9999 131

455 Second motor excitation current 0 to 500A,9999 0.01A 9999 171
456 Rated second motor voltage 0 to 1000V 0.1V 200/400V*4 171
457 Rated second motor frequency 10 to 120Hz 0.01Hz 60Hz 171
458 Second motor constant (R1) 0 to 50Ω, 9999 0.001Ω 9999 171
459 Second motor constant (R2) 0 to 50Ω, 9999 0.001Ω 9999 171
460 Second motor constant (L1) 0 to 50Ω (0 to 1000mH), 9999 0.001Ω (0.1mH) 9999 171
461 Second motor constant (L2) 0 to 50Ω (0 to 1000mH), 9999 0.001Ω (0.1mH) 9999 171
462 Second motor constant (X) 0 to 500Ω (0 to 100%), 9999 0.01Ω (0.1%) 9999 171
Second motor auto tuning setting/
463 0, 1, 101 1 0 171
status
Digital position control sudden stop
464 *2 0 to 360.0s 0.1s 0 117
deceleration time
465 *2 First position feed amount lower 4 digits 0 to 9999 1 0 117
466 *2 First position feed amount upper 4 digits 0 to 9999 1 0 117
467 *2 Second position feed amount lower 4 digits 0 to 9999 1 0 117
468 *2 Second position feed amount upper 4 digits 0 to 9999 1 0 117
469 *2 Third position feed amount lower 4 digits 0 to 9999 1 0 117
470 *2 Third position feed amount upper 4 digits 0 to 9999 1 0 117
471 *2 Fourth position feed amount lower 4 digits 0 to 9999 1 0 117
472 *2 Fourth position feed amount upper 4 digits 0 to 9999 1 0 117
473 *2 Fifth position feed amount lower 4 digits 0 to 9999 1 0 117
Conditional position feed function

474 *2 Fifth position feed amount upper 4 digits 0 to 9999 1 0 117

475 *2 Sixth position feed amount lower 4 digits 0 to 9999 1 0 117
476 *2 Sixth position feed amount upper 4 digits 0 to 9999 1 0 117
477 *2 Seventh position feed amount lower 4 digits 0 to 9999 1 0 117
478 *2 Seventh position feed amount upper 4 digits 0 to 9999 1 0 117
479 *2 Eighth position feed amount lower 4 digits 0 to 9999 1 0 117
480 *2 Eighth position feed amount upper 4 digits 0 to 9999 1 0 117
481 *2 Ninth position feed amount lower 4 digits 0 to 9999 1 0 117
482 *2 Ninth position feed amount upper 4 digits 0 to 9999 1 0 117
483 *2 Tenth position feed amount lower 4 digits 0 to 9999 1 0 117
484 *2 Tenth position feed amount upper 4 digits 0 to 9999 1 0 117
485 *2 Eleventh position feed amount lower 4 digits 0 to 9999 1 0 117
486 *2 Eleventh position feed amount upper 4 digits 0 to 9999 1 0 117
487 *2 Twelfth position feed amount lower 4 digits 0 to 9999 1 0 117
488 *2 Twelfth position feed amount upper 4 digits 0 to 9999 1 0 117
489 *2 Thirteenth position feed amount lower 4 digits 0 to 9999 1 0 117
490 *2 Thirteenth position feed amount upper 4 digits 0 to 9999 1 0 117
4
491 *2 Fourteenth position feed amount lower 4 digits 0 to 9999 1 0 117
492 *2 Fourteenth position feed amount upper 4 digits 0 to 9999 1 0 117
PARAMETERS

493 *2 Fifteenth position feed amount lower 4 digits 0 to 9999 1 0 117

494 *2 Fifteenth position feed amount upper 4 digits 0 to 9999 1 0 117
Maintenance Remote output

495 Remote output selection 0, 1, 10, 11 1 0 226

496 Remote output data 1 0 to 4095 1 0 226

497 Remote output data 2 0 to 4095 1 0 226

503 Maintenance timer 0 (1 to 9998) 1 0 367

Maintenance timer alarm output set

504 0 to 9998, 9999 1 9999 367
time

⎯ 505 Speed setting reference 1 to 120Hz 0.01Hz 60Hz 227

63
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
S-pattern acceleration/

516 S-pattern time at a start of acceleration 0.1 to 2.5s 0.1s 0.1s 158
deceleration D

S-pattern time at a completion of

517 0.1 to 2.5s 0.1s 0.1s 158
acceleration
Parameter List

518 S-pattern time at a start of deceleration 0.1 to 2.5s 0.1s 0.1s 158

S-pattern time at a completion of

519 0.1 to 2.5s 0.1s 0.1s 158
deceleration
Modbus-RTU communication check
⎯ 539 0 to 999.8s, 9999 0.1s 9999 324
time interval

547 USB communication station number 0 to 31 1 0 337

USB

USB communication check time

548 0 to 999.8s, 9999 0.1s 9999 337
interval
Communication

549 Protocol selection 0, 1 1 0 324

NET mode operation command source
550 0, 1, 9999 1 9999 299
selection
PU mode operation command source
551 1 to 3 1 2 299
selection

555 Current average time 0.1 to 1.0s 0.1s 1s 368

Current average
value monitor

556 Data output mask time 0.0 to 20.0s 0.1s 0s 368

Rated
Current average value monitor signal
557 0 to 500A 0.01A inverter 368
output reference current
current
⎯ 563 Energization time carrying-over times (0 to 65535) 1 0 229
⎯ 564 Operating time carrying-over times (0 to 65535) 1 0 229
Second motor
constants

569 Second motor speed control gain 0 to 200%, 9999 0.1% 9999 131

⎯ 571 Holding time at a start 0.0 to 10.0s, 9999 0.1s 9999 157
⎯ 574 Second motor online auto tuning 0, 1 1 0 181
575 Output interruption detection time 0 to 3600s, 9999 0.1s 1s 338
PID control

576 Output interruption detection level 0 to 400Hz 0.01Hz 0Hz 338

577 Output interruption cancel level 900 to 1100% 0.1% 1000% 338
⎯ 611 Acceleration time at a restart 0 to 3600s, 9999 0.1s 5s 243
Regeneration avoidance frequency
⎯ 665 0 to 200% 0.1% 100% 361
gain
⎯ 684 Tuning data unit switchover 0, 1 1 0 171
75,
⎯ 800 Control method selection 0 to 5, 9 to 12, 20 1 20
131
⎯ 802 *2 Pre-excitation selection 0, 1 1 0 185
Constant power range torque 83,
803 0, 1 1 0
Torque command

characteristic selection 108

804
Torque command source selection 0 to 6 1 0 108

805 Torque command value (RAM) 600 to 1400% 1% 1000% 108

Torque command value
806 600 to 1400% 1% 1000% 108
(RAM,EEPROM)
807 Speed limit selection 0 to 2 1 0 110
Speed limit

808 Forward rotation speed limit 0 to 120Hz 0.01Hz 60Hz 110

809 Reverse rotation speed limit 0 to 120Hz, 9999 0.01Hz 9999 110

64
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
810 Torque limit input method selection 0, 1 1 0 83
83,
811 Set resolution switchover 0, 1, 10, 11 1 0
227
812 Torque limit level (regeneration) 0 to 400%, 9999 0.1% 9999 83
Torque limit

Parameter List
813 Torque limit level (3rd quadrant) 0 to 400%, 9999 0.1% 9999 83
814 Torque limit level (4th quadrant) 0 to 400%, 9999 0.1% 9999 83
815 Torque limit level 2 0 to 400%, 9999 0.1% 9999 83
816 Torque limit level during acceleration 0 to 400%, 9999 0.1% 9999 83
817 Torque limit level during deceleration 0 to 400%, 9999 0.1% 9999 83
Easy gain tuning response level
Easy gain

818 1 to 15 1 2 88
tuning

setting

819 Easy gain tuning selection 0 to 2 1 0 88

820 Speed control P gain 1 0 to 1000% 1% 60% 88

821 Speed control integral time 1 0 to 20s 0.001s 0.333s 88
822 Speed setting filter 1 0 to 5s, 9999 0.001s 9999 269
823 *2 Speed detection filter 1 0 to 0.1s 0.001s 0.001s 127
824 Torque control P gain 1 0 to 200% 1% 100% 113
825 Torque control integral time 1 0 to 500ms 0.1ms 5ms 113
Adjustment function

826 Torque setting filter 1 0 to 5s, 9999 0.001s 9999 269

827 Torque detection filter 1 0 to 0.1s 0.001s 0s 127
828 Model speed control gain 0 to 1000% 1% 60% 95
830 Speed control P gain 2 0 to 1000%, 9999 1% 9999 88
831 Speed control integral time 2 0 to 20s, 9999 0.001s 9999 88
832 Speed setting filter 2 0 to 5s, 9999 0.001s 9999 269
833 *2 Speed detection filter 2 0 to 0.1s, 9999 0.001s 9999 127
834 Torque control P gain 2 0 to 200%, 9999 1% 9999 113
835 Torque control integral time 2 0 to 500ms, 9999 0.1ms 9999 113
836 Torque setting filter 2 0 to 5s, 9999 0.001s 9999 269
837 Torque detection filter 2 0 to 0.1s, 9999 0.001s 9999 127
840 *2 Torque bias selection 0 to 3, 9999 1 9999 97
841 *2 Torque bias 1 600 to 1400%, 9999 1% 9999 97
842 *2 Torque bias 2 600 to 1400%, 9999 1% 9999 97
Torque bias

843 *2 Torque bias 3 600 to 1400%, 9999 1% 9999 97

844 *2 Torque bias filter 0 to 5s, 9999 0.001s 9999 97
845 *2 Torque bias operation time 0 to 5s, 9999 0.01s 9999 97
846 *2 Torque bias balance compensation 0 to 10V, 9999 0.1V 9999 97
847 *2 Fall-time torque bias terminal 1 bias 0 to 400%, 9999 1% 9999 97
848 *2 Fall-time torque bias terminal 1 gain 0 to 400%, 9999 1% 9999 97
849 Analog input offset adjustment 0 to 200% 0.1% 100% 269
850 4
Brake operation selection 0 to 2 1 0 185

853 *2 Speed deviation time 0 to 100s 0.1s 1s 100

Additional function

PARAMETERS

854 Excitation ratio 0 to 100% 1% 100% 128

858 Terminal 4 function assignment 0, 1, 4, 9999 1 0 262
859 Torque current 0 to 500A, 9999 0.01A 9999 171
860 Second motor torque current 0 to 500A, 9999 0.01A 9999 171
862 Notch filter time constant 0 to 60 1 0 101
863 Notch filter depth 0 to 3 1 0 101
864 Torque detection 0 to 400% 0.1% 150% 225
865 Low speed detection 0 to 400Hz 0.01Hz 1.5Hz 222
Indication
function

866 Torque monitoring reference 0 to 400% 0.1% 150% 236

⎯ 867 AM output filter 0 to 5s 0.01s 0.01s 236

65
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
⎯ 868 Terminal 1 function assignment 0 to 6, 9999 1 0 262
872 Input phase loss protection selection 0, 1 1 1 253
Protective
Functions

873 *2 Speed limit 0 to 120Hz 0.01Hz 20Hz 100

874 OLT level setting 0 to 200% 0.1% 150% 83
Parameter List

875 Fault definition 0, 1 1 0 254

Speed feed forward control/model
877 0 to 2 1 0 95
adaptive speed control selection
Control method functions

878 Speed feed forward filter 0 to 1s 0.01s 0s 95

879 Speed feed forward torque limit 0 to 400% 0.1% 150% 95

880 Load inertia ratio 0 to 200 times 0.1 7 88, 95

881 Speed feed forward gain 0 to 1000% 1% 0% 95

Regeneration avoidance operation

882 0 to 2 1 0 361
Regeneration avoidance function

selection

Regeneration avoidance operation 380/760VDC

883 300 to 800V 0.1V 361
level *4

Regeneration avoidance at
884 0 to 5 1 0 361
deceleration detection sensitivity

Regeneration avoidance compensation

885 0 to 10Hz, 9999 0.01Hz 6Hz 361
frequency limit value

886 Regeneration avoidance voltage gain 0 to 200% 0.1% 100% 361

parameters

888 Free parameter 1 0 to 9999 1 9999 370

Free

889 Free parameter 2 0 to 9999 1 9999 370

Cumulative power monitor digit shifted

891 times
0 to 4, 9999 1 9999 256

892 Load factor 30 to 150% 0.1% 100% 256

Energy saving monitor reference

Inverter
Energy saving monitor

893 0.1 to 55kW 0.01kW rated 256

(motor capacity)
capacity
Control selection during commercial
894 0 to 3 1 0 256
power supply operation
895 Power saving rate reference value 0, 1, 9999 1 9999 256

896 Power unit cost 0 to 500, 9999 0.01 9999 256

897 Power saving monitor average time 0, 1 to 1000h, 9999 1h 9999 256

898 Power saving cumulative monitor clear 0, 1, 10, 9999 1 9999 256

899 Operation time rate (estimated value) 0 to 100%, 9999 0.1% 9999 256

66
 Parameter list

Minimum Refer
Func- Customer
tion Parameter Name Setting Range Setting Initial Value to
Setting
Increments Page
C0
(900) *3
FM terminal calibration ⎯ ⎯ ⎯ 240
C1
(901) *3
AM terminal calibration ⎯ ⎯ ⎯ 240
C2 Terminal 2 frequency setting bias
0 to 400Hz 0.01Hz 0Hz 271

Parameter List
(902) *3 frequency
Calibration parameters

C3
(902) *3
Terminal 2 frequency setting bias 0 to 300% 0.1% 0% 271
125 Terminal 2 frequency setting gain
0 to 400Hz 0.01Hz 60Hz 271
(903) *3 frequency
C4
Terminal 2 frequency setting gain 0 to 300% 0.1% 100% 271
(903) *3
C5 Terminal 4 frequency setting bias
(904) *3 frequency
0 to 400Hz 0.01Hz 0Hz 271
C6 Terminal 4 frequency setting bias 0 to 300% 0.1% 20% 271
(904) *3
126 Terminal 4 frequency setting gain
0 to 400Hz 0.01Hz 60Hz 271
(905) *3 frequency
C7
(905) *3
Terminal 4 frequency setting gain 0 to 300% 0.1% 100% 271
C12 Terminal 1 bias frequency (speed) 0 to 400Hz 0.01Hz 0Hz 271
(917) *3
C13 Terminal 1 bias (speed) 0 to 300% 0.1% 0% 271
(917) *3
C14 Terminal 1 gain frequency (speed) 0 to 400Hz 0.01Hz 60Hz 271
(918) *3
C15 Terminal 1 gain (speed) 0 to 300% 0.1% 100% 271
(918) *3
Calibration parameters

C16 Terminal 1 bias command (torque/ 0 to 400% 0.1% 0% 277

(919) *3 magnetic flux)
C17 Terminal 1 bias (torque/magnetic flux) 0 to 300% 0.1% 0% 277
(919) *3
C18 Terminal 1 gain command (torque/ 0 to 400% 0.1% 150% 277
(920) *3 magnetic flux)
C19 Terminal 1 gain (torque/magnetic flux) 0 to 300% 0.1% 100% 277
(920) *3
C38 Terminal 4 bias command (torque/
0 to 400% 0.1% 0% 277
(932) *3 magnetic flux)
C39 Terminal 4 bias (torque/magnetic flux) 0 to 300% 0.1% 20% 277
(932) *3
C40 Terminal 4 gain command (torque/ 0 to 400% 0.1% 150% 277
(933) *3 magnetic flux)
C41 Terminal 4 gain (torque/magnetic flux) 0 to 300% 0.1% 100% 277
(933) *3
⎯ 989 Parameter for manufacturer setting. Do not set.
990 PU buzzer control 0, 1 1 1 373
PU

991 PU contrast adjustment 0 to 63 1 58 373

Pr. CL Parameter clear 0, 1 1 0 374
parameters

ALLC All parameter clear 0, 1 1 0 375

Clear

Er.CL Faults history clear 0, 1 1 0 378

PCPY Parameter copy 0 to 3 1 0 376
*1
*2
Differ according to capacities. (7.5K or lower/11K or higher)
Setting can be made only when the FR-A7AP/FR-A7AL is mounted.
4
*3 The parameter number in parentheses is the one for use with the parameter unit (FR-PU04/FR-PU07).
*4 Differs according to the voltage class. (200V class/400V class)
PARAMETERS

67
 Parameters according to purposes
4.3 Control mode 71
4.3.1 What is vector control?................................................................................................................................ 72
4.3.2 Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800) ..................................................................... 75
4.4 Speed control by Real sensorless vector control, vector control 79
4.4.1 Setting procedure of Real sensorless vector control (speed control) ......................................................... 81
4.4.2 Setting procedure of vector control (speed control) ................................................................................... 82
4.4.3 Torque limit level setting for speed control
(Pr. 22, Pr. 803, Pr. 810 to Pr. 817, Pr. 858, Pr. 868, Pr. 874) .................................................................. 83
4.4.4 To perform high accuracy/fast response operation (gain adjustment of Real
sensorless vector control and vector control) (Pr. 818 to Pr. 821, Pr. 830,
Pr. 831, Pr. 880) ....................................................................................................................................... 88
4.4.5 Speed feed forward control, model adaptive speed control (Pr. 828, Pr. 877 to Pr. 881) .......................... 95
4.4.6 Torque biases (Pr. 840 to Pr. 848) ............................................................................................................. 97
4.4.7 Prevent the motor from overrunning (Pr. 285, Pr. 853, Pr. 873) .............................................................. 100
4.4.8 Notch filter (Pr. 862, Pr. 863) ................................................................................................................... 101
4.5 Torque control by Real sensorless vector control, vector control 102
4.5.1 Torque control ........................................................................................................................................... 102
4.5.2 Setting procedure of Real sensorless vector control (torque control) ...................................................... 106
4.5.3 Setting procedure of vector control (torque control) ................................................................................. 107
4.5.4 Torque command (Pr. 803 to Pr. 806) ...................................................................................................... 108
4.5.5 Speed limit (Pr. 807 to Pr. 809) ................................................................................................................ 110
4.5.6 Gain adjustment of torque control (Pr. 824, Pr. 825, Pr. 834, Pr. 835) .................................................... 113
4.6 Position control by vector control 115
4.6.1 Position control ......................................................................................................................................... 115
4.6.2 Conditional position feed function by contact input (Pr. 419, Pr. 464 to Pr. 494) ..................................... 117
4.6.3 Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input ............................................... 120
4.6.4 Setting of the electronic gear (Pr. 420, Pr. 421, Pr. 424) ........................................................................ 122
4.6.5 Setting of positioning adjustment parameter (Pr. 426, Pr. 427) ............................................................... 123
4.6.6 Gain adjustment of position control (Pr. 422, Pr. 423, Pr. 425) ................................................................ 124
4.6.7 Trouble shooting for when position control is not exercised normally ...................................................... 126
4.7 Adjustment of Real sensorless vector control, vector control 127
4.7.1 Speed detection filter and torque detection filter (Pr. 823, Pr. 827, Pr. 833, Pr. 837) ............................. 127
4.7.2 Excitation ratio (Pr. 854) .......................................................................................................................... 128
4.8 Adjust the output torque (current) of the motor 129
4.8.1 Manual torque boost (Pr. 0, Pr. 46, Pr. 112) ............................................................................................. 129
4.8.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450,
Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800) .............................................................................................. 131
4.8.3 Slip compensation (Pr. 245 to Pr. 247) ..................................................................................................... 134
4.8.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 49, Pr. 66, Pr. 114, Pr. 115,
Pr. 148, Pr. 149, Pr. 154, Pr. 156, Pr. 157, Pr. 858, Pr. 868).................................................................... 135
4.9 Limiting the output frequency 140
4.9.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18) .................................................................................. 140
4.9.2 Avoiding mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36) ............................................ 141
4.10 V/F pattern 142
4.10.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47, Pr. 113)............................................................................ 142
4.10.2 Load pattern selection (Pr. 14) ................................................................................................................. 144
4.10.3 Elevator mode (automatic acceleration/deceleration) (Pr. 61, Pr. 64, Pr. 292) ........................................ 146
4.10.4 Adjustable 5 points V/F (Pr. 71, Pr. 100 to Pr. 109) .................................................................................. 147
4.11 Frequency setting by external terminals 148
4.11.1 Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239) .................................... 148
4.11.2 Jog operation (Pr. 15, Pr. 16).................................................................................................................... 150
4.11.3 Input compensation of multi-speed and remote setting (Pr. 28) ............................................................... 152
4.11.4 Remote setting function (Pr. 59) ............................................................................................................... 152
4.12 Setting of acceleration/deceleration time and
acceleration/deceleration pattern 155
4.12.1 Setting of the acceleration and deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 21,
Pr. 44, Pr. 45, Pr. 110, Pr. 111)................................................................................................................. 155
4.12.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571) .............................................................. 157

68
 4.12.3 Acceleration/deceleration pattern (Pr. 29, Pr. 140 to Pr. 143, Pr. 380 to Pr. 383,
Pr. 516 to Pr. 519)..................................................................................................................................... 158
4.12.4 Shortest acceleration/deceleration and optimum acceleration/deceleration
(automatic acceleration/deceleration) (Pr. 61 to Pr. 63, Pr. 292, Pr. 293) ................................................ 162
4.13 Selection and protection of a motor 165
4.13.1 Motor protection from overheat (Electronic thermal relay function) (Pr. 9, Pr. 51).................................... 165
4.13.2 Applied motor (Pr. 71, Pr. 450) ................................................................................................................. 169
4.13.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450,
Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860) ........................................................................................ 171
4.13.4 Online auto tuning (Pr. 95, Pr. 574) ...................................................................................................... 181
4.14 Motor brake and stop operation 185
4.14.1 DC injection brake and zero speed control, servo lock (LX signal, X13 signal,
Pr. 10 to Pr. 12, Pr. 802, Pr. 850).............................................................................................................. 185
4.14.2 Stop selection (Pr. 250)............................................................................................................................. 189
4.14.3 Stop-on contact control function (Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276) ............................................... 190
4.14.4 Brake sequence function (Pr. 278 to Pr. 285, Pr. 292) ............................................................................. 193
4.14.5 Orientation control (Pr. 350 to Pr. 366, Pr. 369, Pr. 393, Pr. 396 to Pr. 399) ......................................... 196
4.15 Function assignment of external terminal and control 207
4.15.1 Input terminal function selection (Pr. 178 to Pr. 189) ................................................................................ 207

Parameters according to purposes

4.15.2 Inverter output shutoff signal (MRS signal, Pr. 17) ................................................................................... 210
4.15.3 Condition selection of function validity by the second function selection signal (RT) and
third function selection signal (X9) (RT signal, X9 signal, Pr. 155) ........................................................... 211
4.15.4 Start signal operation selection (STF, STR, STOP signal, Pr. 250).......................................................... 212
4.15.5 Magnetic flux decay output shutoff signal (X74 signal) ............................................................................. 214
4.15.6 Output terminal function selection (Pr. 190 to Pr. 196) ............................................................................. 215
4.15.7 Detection of output frequency (SU, FU, FU2 , FU3, FB, FB2, FB3, LS signal,
Pr. 41 to Pr. 43, Pr. 50, Pr. 116, Pr. 865) .................................................................................................. 222
4.15.8 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)................................................................... 224
4.15.9 Detection of output torque (TU signal, Pr. 864)......................................................................................... 225
4.15.10 Remote output function (REM signal, Pr. 495 to Pr. 497) ......................................................................... 226
4.16 Monitor display and monitor output signal 227
4.16.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505, Pr. 811) ........................................................ 227
4.16.2 DU/PU, FM, AM terminal monitor display selection (Pr. 52, Pr. 54, Pr. 158, Pr. 170,
Pr. 171, Pr. 268, Pr. 563, Pr. 564, Pr. 891) ............................................................................................... 229
4.16.3 Reference of the terminal FM (pulse train output) and AM (analog voltage
output) (Pr. 55, Pr. 56, Pr. 291, Pr. 866, Pr. 867)...................................................................................... 236
4.16.4 Terminal FM, AM calibration (Calibration parameter C0 (Pr. 900), C1 (Pr. 901)) ..................................... 240
4.17 Operation selection at power failure and instantaneous power failure 243
4.17.1 Automatic restart after instantaneous power failure/flying start
(Pr. 57, Pr. 58, Pr. 162 to Pr. 165, Pr. 299, Pr. 611) ................................................................................. 243
4.17.2 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266, Pr. 294 )......................................... 247
4.18 Operation setting at fault occurrence 250
4.18.1 Retry function (Pr. 65, Pr. 67 to Pr. 69)..................................................................................................... 250 4
4.18.2 Fault code output selection (Pr. 76) .......................................................................................................... 252
4.18.3 Input/output phase loss protection selection (Pr. 251, Pr. 872) ................................................................ 253
4.18.4 Overspeed detection (Pr. 374) .................................................................................................................. 253
PARAMETERS

4.18.5 Encoder signal loss detection (Pr. 376) ................................................................................................... 253

4.18.6 Fault definition (Pr. 875)............................................................................................................................ 254
4.19 Energy saving operation and energy saving monitor 255
4.19.1 Energy saving control (Pr. 60) .................................................................................................................. 255
4.19.2 Energy saving monitor (Pr. 891 to Pr. 899)............................................................................................... 256
4.20 Motor noise, EMI measures 261
4.20.1 PWM carrier frequency and Soft-PWM control (Pr. 72, Pr. 240)............................................................... 261
4.21 Frequency/torque setting by analog input (terminal 1, 2, 4) 262
4.21.1 Function assignment of analog input terminal (Pr. 858, Pr. 868) .............................................................. 262
4.21.2 Analog input selection (Pr. 73, Pr. 267) .................................................................................................... 263
4.21.3 Analog input compensation (Pr. 73, Pr. 242, Pr. 243, Pr. 252, Pr. 253) ................................................... 267

69
 4.21.4 Response level of analog input and noise elimination
(Pr. 74, Pr. 822, Pr. 826, Pr. 832, Pr. 836, Pr. 849) .................................................................................. 269
4.21.5 Bias and gain of frequency setting voltage (current)
(Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905), C12(Pr. 917) to C15(Pr. 918))............................. 271
4.21.6 Bias and gain of torque (magnetic flux) setting voltage (current)
(Pr. 241, C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) to C41 (Pr. 933)) ................................................ 277
4.22 Misoperation prevention and parameter setting restriction 282
4.22.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75).................................................... 282
4.22.2 Parameter write selection (Pr. 77)............................................................................................................. 284
4.22.3 Reverse rotation prevention selection (Pr. 78).......................................................................................... 285
4.22.4 Display of applied parameters and user group function (Pr. 160, Pr. 172 to Pr. 174)............................... 285
4.22.5 Password function (Pr. 296, Pr. 297) ........................................................................................................ 287
4.23 Selection of operation mode and operation location 290
4.23.1 Operation mode selection (Pr. 79) ............................................................................................................ 290
4.23.2 Operation mode at power on (Pr. 79, Pr. 340) .......................................................................................... 298
4.23.3 Start command source and frequency command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551) .................................................................. 299
4.24 Communication operation and setting 305
4.24.1 Wiring and configuration of PU connector................................................................................................. 305
4.24.2 Wiring and arrangement of RS-485 terminals........................................................................................... 307
4.24.3 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 124, Pr. 331 to Pr. 337, Pr. 341, Pr. 549) .......................................................................... 310
4.24.4 Communication EEPROM write selection (Pr. 342).................................................................................. 311
4.24.5 Mitsubishi inverter protocol (computer link communication) ..................................................................... 312
4.24.6 Modbus-RTU communication specifications (Pr. 331, Pr. 332, Pr. 334, Pr. 343,
Pr. 539, Pr. 549)........................................................................................................................................ 324
4.24.7 USB communication (Pr. 547, Pr. 548) ..................................................................................................... 337
4.25 Special operation and frequency control 338
4.25.1 PID control (Pr. 127 to Pr. 134, Pr. 575 to Pr. 577)................................................................................... 338
4.25.2 Bypass-inverter switchover function (Pr. 57, Pr. 58, Pr. 135 to Pr. 139, Pr. 159) ..................................... 346
4.25.3 Load torque high speed frequency control (Pr. 4, Pr. 5, Pr. 270 to Pr. 274) ............................................. 351
4.25.4 Droop control (Pr. 286 to Pr. 288) .......................................................................................................... 354
4.25.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386) ......................................................... 356
4.25.6 Encoder feedback control (Pr. 144, Pr. 285, Pr. 359, Pr. 367 to Pr. 369) ................................................ 359
4.25.7 Regeneration avoidance function (Pr. 665, Pr. 882 to Pr. 886) ................................................................ 361
4.26 Useful functions 363
4.26.1 Cooling fan operation selection (Pr. 244).................................................................................................. 363
4.26.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259) ....................................................................... 364
4.26.3 Maintenance timer alarm (Pr. 503, Pr. 504) .............................................................................................. 367
4.26.4 Current average value monitor signal (Pr. 555 to Pr. 557)........................................................................ 368
4.26.5 Free parameter (Pr. 888, Pr. 889)............................................................................................................. 370
4.27 Setting of the parameter unit and operation panel 371
4.27.1 PU display language selection (Pr. 145) ................................................................................................... 371
4.27.2 Operation panel frequency setting/key lock selection (Pr. 161) ................................................................ 371
4.27.3 Buzzer control (Pr. 990) ............................................................................................................................ 373
4.27.4 PU contrast adjustment (Pr. 991).............................................................................................................. 373
4.28 Parameter clear 374
4.29 All parameter clear 375
4.30 Parameter copy and parameter verification 376
4.30.1 Parameter copy......................................................................................................................................... 376
4.30.2 Parameter verification ............................................................................................................................... 377
4.31 Check and clear of the faults history 378

70
 Control mode

4.3 Control mode

V/F control (initial setting), Advanced magnetic flux vector control, Real sensorless vector control and vector control are
available with this inverter.
(1) V/F Control
⋅ It controls frequency and voltage so that the ratio of frequency (F) to voltage (V) is constant when changing frequency.
(2) Advanced magnetic flux vector control
⋅ This control divides the inverter output current into an excitation current and a torque current by vector calculation
and makes voltage compensation to flow a motor current which meets the load torque.
POINT
If the following conditions are not satisfied, select V/F control since malfunction such as insufficient torque and uneven
rotation may occur.
· The motor capacity should be equal to or one rank lower than the inverter capacity.
· Motor to be used is any of Mitsubishi standard motor (SF-JR 3.7kW or higher), high efficiency motor (SF-HR 3.7kW or
higher) or Mitsubishi constant torque motor (SF-JRCA 4P, SF-HRCA 3.7kW or higher). When using a motor other than
the above (other manufacturer's motor, etc.), perform offline auto tuning without fail.
· Single-motor operation (one motor run by one inverter) should be performed.
· Wiring length from inverter to motor should be within 30m. (Perform offline auto tuning in the state where wiring work is
performed when the wiring length exceeds 30m.)
(3) Real sensorless vector control
⋅ By estimating the motor speed, speed control and torque control with more advanced current control function are
enabled. When high accuracy and fast response is necessary, select the Real sensorless vector control and
perform offline auto tuning and online auto tuning.
⋅ This control can be applied to the following applications.
⋅ To minimize the speed fluctuation even at a severe load fluctuation
⋅ To generate low speed torque
⋅ To prevent machine from damage due to too large torque (torque limit)
⋅ To perform torque control
POINT
If the following conditions are not satisfied, select V/F control since malfunction such as insufficient torque and uneven
rotation may occur.
· The motor capacity should be equal to or one rank lower than the inverter capacity.
· Perform offline auto tuning without fail. Offline auto tuning is necessary under Real sensorless vector control even when
the Mitsubishi motor is used.
· Single-motor operation (one motor run by one inverter) should be performed.
(4) Vector control
⋅ When the FR-A7AP/FR-A7AL (option) is mounted, full-scale vector control operation can be performed using a
motor with encoder. Fast response/high accuracy speed control (zero speed control, servo lock), torque control,
and position control can be performed.
⋅ What is vector control?
Excellent control characteristics when compared to V/F control and other control techniques, achieving the control
characteristics equal to those of DC machines.
It is suitable for applications below.
⋅ To minimize the speed fluctuation even at a severe load fluctuation 4
⋅ To generate low speed torque
⋅ To prevent machine from damage due to too large torque (torque limit)
⋅ To perform torque control or position control
PARAMETERS

⋅ Servo-lock torque control which generates torque at zero speed (i.e. status of motor shaft = stopped)
POINT
If the conditions below are not satisfied, malfunction such as insufficient torque and uneven rotation may occur.
· The motor capacity should be equal to or one rank lower than the inverter capacity.
· Motor to be used is any of Mitsubishi standard motor with encoder (SF-JR), high efficiency motor with encoder (SF-HR)
or Mitsubishi constant torque motor with encoder (SF-JRCA 4P, SF-HRCA 3.7kW or more) or vector control dedicated
motor (SF-V5RU). When using a motor other than the above (other manufacturer's motor), perform offline auto tuning
without fail.
· Single-motor operation (one motor run by one inverter) should be performed.
· Wiring length from inverter to motor should be within 30m. (Perform offline auto tuning in the state where wiring work is
performed when the wiring length exceeds 30m.)

71
Control mode

4.3.1 What is vector control?

Vector control is one of the control techniques for driving an induction motor. To help explain vector control, the
fundamental equivalent circuit of an induction motor is shown below:
r1 : Primary resistance
im
r2 : Secondary resistance
r1 1 2

1 : Primary leakage inductance

2 : Secondary leakage inductance

r2 M : Mutual inductance
id M iq
S S : Slip
id : Excitation current
iq : Torque current
im : Motor current

In the above diagram, currents flowing in the induction motor can be classified into a current id (excitation current) for
making a magnetic flux in the motor and a current iq (torque current) for causing the motor to develop a torque.
In vector control, the voltage and output frequency are
iq motor current im calculated to control the motor so that the excitation current
and torque current (as shown in the left figure) flow to the
optimum as described below:

(1) The excitation current is controlled to place the internal

torque current

magnetic flux of the motor in the optimum status.

(2) Derive the torque command value so that the

difference between the motor speed command and the
excitation current
actual speed (speed estimated value for Real
id
sensorless vector control) obtained from the encoder
connected to the motor shaft is zero. Torque current is
controlled so that torque as set in the torque command
is developed.

Motor-generated torque (TM), slip angular velocity (ωs) and the motor's secondary magnetic flux (φ2) can be found by
the following calculation:
TM ∝ φ2 ⋅ iq Vector control provides the following advantages:
φ2 = M ⋅ id
(1) Excellent control characteristics when compared to V/
ωs = r2 iq F control and other control techniques, achieving the
L2 id control characteristics equal to those of DC machines.
where, L2 = secondary inductance
L2 = 2 + M (2) Applicable to fast response applications with which
induction motors were previously regarded as difficult
to use. Applications requiring a wide variable-speed
range from extremely low speed to high speed,
frequent acceleration/deceleration operations,
continuous four-quadrant operations etc.

(3) Allows torque control.

(4) Allows servo-lock torque control which generates a

torque at zero speed (i.e. status of motor shaft =
stopped). (Cannot be performed under Real sensor-
less vector control.)

72
 Control mode

Block diagram of Real sensorless vector control

IM

PWM
modulation

φ2 magnetic pre-excitation
id* + Vd
flux current output
control - id control voltage
conversion
torque
ω* + speed iq* + Vq
ω0
current
- control
- control
ωFB iq
+ ω0
ωFB + id
ωs current
iq iq
conversion
slip
calculation
φ2 magnetic id
id
flux Vd
Vq
speed estimation calculation

Block diagram of vector control

IM

Encoder

PWM
modulation

φ2 magnetic pre-excitation
id* + Vd
flux current output
control - id control voltage
conversion 4
torque
ω* + speed iq* + Vq
ω0
current
- control
PARAMETERS

- control
ωFB iq
+ ω0
ωFB + id
ωs current
iq iq
conversion
slip
calculation
φ2 magnetic id
flux
calculation

73
Control mode

(1) Speed control

Speed control operation is performed to zero the difference between the speed command (ω*) and actual rotation
detection value (ωFB). At this time, the motor load is found and its result is transferred to the torque current
controller as a torque current command (iq*).

(2) Torque current control

A voltage (Vq) is calculated to start a current (iq*) which is identical to the torque current command (iq) found by
the speed controller.

(3) Magnetic flux control

The magnetic flux (φ2) of the motor is derived from the excitation current (id). The excitation current command (id*)
is calculated to use that motor magnetic flux (φ2) as a predetermined magnetic flux.

(4) Excitation current control

A voltage (Vd) is calculated to start a current (id) which is identical to the excitation current command (id*) found by
magnetic flux control.

(5) Output frequency calculation

Motor slip (ωs) is calculated on the basis of the torque current value (iq) and magnetic flux (φ2). The output
frequency (ω0) is found by adding that slip (ωs) to the feedback (ωFB) found by a feedback from the encoder.

The above results are used to make PWM modulation and run the motor.

74
 Control mode

4.3.2 Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800)
Set when selecting the Advanced magnetic flux vector control, Real sensorless vector control or vector control.
Select a control mode from speed control mode, torque control mode and position control mode under Real
sensorless vector control or vector control. The initial value is V/F control.
Select a control method using Pr. 800 (Pr. 451) Control method selection .
Each control method can be switched using a method switching signal (MC).

Parameter Initial
Name Setting Range Description
Number Value
0.4 to 55kW Set the applied motor capacity.
80 Motor capacity 9999
9999 V/F control
2, 4, 6, 8, 10 Set the number of motor poles.
Set 10 + number
81 Number of motor poles 9999 12, 14, 16, 18, 20 X18 signal-ON:V/F control
of motor poles
9999 V/F control
0 to 5 Vector control
Control method 9 Vector control test operation
800 20
selection 10, 11, 12 Real sensorless vector control
20 V/F control (Advanced magnetic flux vector control)
Second motor control 10, 11, 12 Real sensorless vector control
451 9999
method selection 20, 9999 V/F control (Advanced magnetic flux vector control)

(1) Setting of the motor capacity and the number of motor poles (Pr. 80, Pr. 81 )
⋅ Motor specifications (the motor capacity and the number of motor poles) must be set to select Advanced magnetic
flux vector control, Real sensorless vector control or vector control.
⋅ Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number of motor poles in Pr. 81 Number of motor
poles.
REMARKS
⋅ Setting number of motor poles in Pr. 81 changes the Pr. 144 Speed setting switchover setting automatically. (Refer to page 227.)

(2) Selection of control method and control mode

⋅ Select the inverter control method for V/F control, Advanced magnetic flux vector control (speed control), Real
sensorless vector control (speed control, torque control) and vector control (speed control, torque control, and
position control).
Pr. 80,
Pr. 800 Pr. 451
Pr. 81 Control Method Control Mode Remarks
Setting Setting
Setting
0 ⎯ Speed control ⎯
1 ⎯ Torque control ⎯
2 ⎯ Speed control-torque control MC ON: Torque control
switchover MC OFF: Speed control
3 ⎯ Vector control Position control ⎯
4 ⎯ Speed control-position MC ON: Position control
control switchover MC OFF: Speed control
Position control-torque MC ON: Torque control 4
5 ⎯ control switchover MC OFF: Position control
Other
than 9 ⎯ Vector control test operation
PARAMETERS

9999 10 Speed control ⎯

11 Real sensorless vector Torque control ⎯
control Speed control-torque control MC ON: Torque control
12
switchover MC OFF: Speed control
20 Advanced magnetic flux
(Pr. 800 initial value) vector control Speed control ⎯
9999
⎯ (Pr. 451 V/F control, Advanced magnetic flux vector control
initial
value)
9999 ⎯* V/F control
* Control method is V/F control regardless of the setting value of Pr. 800 when "9999" is set in Pr. 80 Motor capacity or Pr. 81 Number of motor poles.

75
Control mode

(3) Vector control test operation (Pr. 800 = "9")

⋅ Speed control test operation can be performed even when the motor is not connected.
The speed calculation value changes to track the speed command and the transition can be checked with the
operation panel and analog signal output at FM and AM.
CAUTION
⋅ Since current is not detected and voltage is not output, monitors related to current and voltage such as output current and output
voltage, etc. and output signals do not function.
⋅ For speed calculation, speed is calculated in consideration of Pr. 880 Load inertia ratio.

(4) Control method switching by external terminals (RT signal, X18 signal)
⋅ The switching of the control method (V/F control, Advanced magnetic flux vector control, Real sensorless vector
control and vector control) by the external terminal may be made in either of the following two ways: switching by
the second function selection signal (RT), or V/F switching signal (X18).
⋅ Two types of control method can be switched with the RT signal by setting the type of motor to be used as second
motor in Pr. 450 Second applied motor and control method of the motor in Pr. 451 Second motor control method selection.
Turn on the RT signal to select the second function.
⋅ For switching by the X18 signal, setting "12, 14, 16, 18, 20" in Pr. 81 Number of motor poles and turning the X18
signal on switches the currently selected control method (Advanced magnetic flux vector control, Real sensorless
vector control and vector control) to V/F control. In this case, use this signal only for changing the control method of
one motor since second function as electronic thermal relay characteristic, etc. can not be changed. (Use the RT
signal to change the second function.)
For the terminal used for X18 signal input, set "18" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function.
Second Motor Control Method Pr. 450 Pr. 453, Pr. 454 Pr. 451
First Motor Control Method
(RT signal is on) Setting Setting Setting
9999 ⎯ ⎯
V/F control
9999 ⎯
V/F control Other than
Advanced magnetic flux vector control Other than 20, 9999
9999
Real sensorless vector control 9999 10 to 12
Same control as the first motor *1 9999 ⎯ ⎯
Advanced magnetic flux vector
control V/F control 9999 ⎯
Real sensorless vector control Advanced magnetic flux vector control Other than 20, 9999
9999 Other than
Vector control 9999
Real sensorless vector control 10 to 12
*1 V/F control is selected when "12, 14, 16, 18, 20" is set in Pr. 81 and the X18 signal is on. When the X18 signal is not assigned, turning the RT
signal on selects V/F control as the RT signal shares this function.

REMARKS
⋅ The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.
⋅ The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 211.)
⋅ The control method could be changed by external terminals (RT signal, X18 signal) while the inverter is stopped.
If a signal is switched during the operation, the control method changes after the inverter stops.

76
 Control mode

(5) Switching the control method from the external terminal (MC signal)
⋅ When "12 (2)" is set in Pr. 800 (Pr. 451 ), speed control is selected when the control mode switching signal (MC) is
off, and torque control is selected when the signal is off under Real sensorless vector control and vector control.
Switching between speed control and torque control is always enabled.
Under vector control, speed control/position control switchover and torque control/position control switchover can be
made by setting "4, 5" in Pr. 800. For the terminal used for MC signal input, set "26" in any of Pr. 178 to Pr. 189 (input
terminal function selection) to assign the function.
⋅ When an analog input terminal (terminal 1,4) is used for torque limit, torque command, etc., terminal functions also
switch as below if control mode is switched.
Terminal 1 function according to control
Real Sensorless Vector Control (Pr. 800 = 12), Vector Control (Pr. 800 = 2)
Pr. 868 Setting
Speed control (MC signal-OFF) Torque control (MC signal-ON)
0 (initial value) Speed setting auxiliary Speed limit auxiliary
1 Magnetic flux command Magnetic flux command
2 Regenerative torque limit (Pr. 810 = 1) ⎯
3 ⎯ Torque command (Pr. 804 = 0)
4 Torque limit (Pr. 810 = 1) Torque command (Pr. 804 = 0)
5 ⎯ Forward reverse speed limit (Pr. 807 = 2)
6 ⎯ ⎯
9999 ⎯ ⎯

Vector Control (Pr. 800 = 4)

Pr. 868 Setting
Speed control (MC signal-OFF) Position control (MC signal-ON)
0 (initial value) Speed setting auxiliary ⎯
1 Magnetic flux command Magnetic flux command
2 Regenerative torque limit (Pr. 810 = 1) Regenerative torque limit (Pr. 810 = 1)
3 ⎯ ⎯
4 Torque limit (Pr. 810 = 1) Torque limit (Pr. 810 = 1)
5 ⎯ ⎯
6 Torque bias ⎯
9999 ⎯ ⎯

Vector Control (Pr. 800 = 5)

Pr. 868 Setting
Position control (MC signal-OFF) Torque control (MC signal-ON)
0 (initial value) ⎯ Speed setting auxiliary
1 Magnetic flux command Magnetic flux command
2 Regenerative torque limit (Pr. 810 = 1) ⎯
3 ⎯ Torque command (Pr. 804 = 0)
4 Torque limit (Pr. 810 = 1) Torque command (Pr. 804 = 0)
5 ⎯ Forward reverse speed limit (Pr. 807 = 2)
6 ⎯ ⎯
9999 ⎯ ⎯

4
PARAMETERS

77
Control mode

Terminal 4 function according to control

Real Sensorless Vector Control (Pr. 800 = 12), Vector Control (Pr. 800 = 2)
Pr. 858 Setting
Speed control (MC signal-OFF) Torque control (MC signal-ON)
0 (initial value) Speed command (AU signal-ON) Speed limit (AU signal-ON)
1 Magnetic flux command Magnetic flux command
4 Torque limit (Pr. 810 = 1) ⎯
9999 ⎯ ⎯

Vector Control (Pr. 800 = 4)

Pr. 858 Setting
Speed control (MC signal-OFF) Position control (MC signal-ON)
0 (initial value) Speed command (AU signal-ON) ⎯
1 Magnetic flux command Magnetic flux command
4 Torque limit (Pr. 810 = 1) Torque limit (Pr. 810 = 1)
9999 ⎯ ⎯

Vector Control (Pr. 800 = 5)

Pr. 858 Setting
Position control (MC signal-OFF) Torque control (MC signal-ON)
0 (initial value) ⎯ Speed limit (AU signal-ON)
1 Magnetic flux command Magnetic flux command
4 Torque limit (Pr. 810 = 1) ⎯
9999 ⎯ ⎯
⎯ :No function

REMARKS
⋅ Switching between speed control and torque control is always enabled independently of whether the motor is at a stop or
running or the DC injection brake operation (pre-excitation).
⋅ During motor operation, speed control/position control switchover and torque control/position control switchover is made when
frequency drops to the Pr. 865 Low speed detection.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Advanced magnetic flux vector control Refer to page 131
Real sensorless vector control, vector control (speed control) Refer to page 79
Real sensorless vector control, vector control (torque control) Refer to page 102
Vector control (position control) Refer to page 115
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 450 Second applied motor Refer to page 169
Pr. 804 Torque command source selection Refer to page 108
Pr. 807 Speed limit selection Refer to page 110
Pr. 810 Torque limit input method selection Refer to page 83
Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment Refer to page 262

78
 Speed control by Real sensorless
vector control, vector control

4.4 Speed control by Real sensorless vector control, vector

control
Purpose Parameter that should be Set Refer to Page
Pr. 22, Pr. 803, Pr. 810,
To perform torque limit during speed control Torque limit Pr. 812 to Pr. 817, 83
Pr. 858, Pr. 868, Pr. 874
Gain adjustment of speed control Easy gain tuning Pr. 818 to Pr. 821, Pr. 830, 88
Gain adjustment Pr. 831, Pr. 880
To enhance the trackability of the motor in Speed feed forward control,
response to a speed command change model adaptive speed control Pr. 828, Pr. 877 to Pr. 881 95
Stabilize the speed detection signal Speed detection filter Pr. 823, Pr. 833 127
Accelerates the rise of the torque at a start Torque bias Pr. 840 to Pr. 848 97
Avoid mechanical resonance Notch filter Pr. 862, Pr. 863 101

Speed control is exercised to match the speed command and actual motor speed.
(1) Control block diagram

Analog input offset

Terminal 2 bias [C2, C3 (Pr. 902)] adjustment [Pr. 849] Operation Mode
AU Terminal 2 gain [Pr. 125, C4 (Pr. 903)] [Pr. 79]
Terminal 2
Terminal 4 bias [C5, C6 (Pr. 904)]
Terminal 4 gain [Pr. 126, C7 (Pr. 905)] Analog
Terminal 4 AU input
[Pr. 858 = 0] selection
[Pr. 73]
Terminal 1
[Pr. 868 = 0]
RT [Pr. 822 = 9999]
[Pr. 822]
Speed setting [Pr. 74]
filter [Pr. 822 = 9999]
RT [Pr. 832 = 9999] [Pr. 832]
[Pr. 74]
[Pr. 832 = 9999]
RL Multi-speed
RM selection
[Pr. 4 to 6,
RH 24 to 27,
232 to 239]
REX

Option
Operation panel

Acceleration/deceleration processing
Maximum/minimum setting

4
[Pr. 1] Running
[Pr. 13] [Pr. 10]
[Pr. 2] A
[Pr. 7] [Pr. 8] During stop
Vector control
PARAMETERS

[Pr. 802 = 1] LX [Pr. 800 = 0]

Servo lock
zero speed control
[Pr. 802 = 0]
Real sensorless
Decelerates to stop
vector control
[Pr. 11] LX
Zero speed control [Pr. 800 = 10]

[Pr. 850 = 1] LX
Zero speed control
DC injection brake operation
[Pr. 850 = 0] Decelerates to stop
[Pr. 11]

79
Speed control by Real sensorless vector
control, vector control

Speed feed forward control

Speed feed forward Speed feed
torque limit forward
[Pr. 879] filter [Pr. 878]
Load inertia ratio Speed feed forward
J s gain
[Pr. 880] [Pr. 881]

Model adaptive speed control

J [Pr. 880]
Torque
coefficient
Model speed
calculation
[Pr. 877 = 1]
Model speed Speed Notch
RT 1 RT
control gain control filter B
A
[Pr. 877 = 2] [Pr. 828] P gain 1 [Pr. 862]
J s
[Pr. 820] Speed control [Pr. 863]
[Pr. 877 = 0] X44 integral
time 1
[Pr. 821]
X44 Integration cleared to 0
0
When torque bias is selected Torque bias
operation
RT
Speed time [Pr. 845]
RT control
P gain 2
[Pr. 830] Speed control
X44 integral
time 2
[Pr. 831]
X44 Integration cleared to 0
0
When torque bias is selected Torque bias
operation
time [Pr. 845]
Speed detection filter
Vector control
[Pr. 800 = 0]

Real sensorless
vector control Speed RT
[Pr. 823]
[Pr. 800 = 10] estimation
RT
Torque bias [Pr. 833]
Torque bias balance
compensation
[Pr. 846] Terminal 1 bias [C16, C17(Pr. 919)]
Terminal 1 gain [C18, C19(Pr. 920)]
Fall-time torque bias terminal 1 bias [Pr. 847]
Fall-time torque bias terminal 1 gain [Pr. 848]
Terminal 1
[Pr. 868 = 6]

Torque RT [Pr. 826 = 9999]

setting [Pr. 826]
filter [Pr. 74]
[Pr. 826 = 9999] Torque bias
RT [Pr. 836 = 9999] Torque bias filter
[Pr. 836] [Pr. 844]
selection
[Pr. 74] [Pr. 840 = 1, 2]
X42 [Pr. 836 = 9999]

X43 Torque bias

[Pr. 841 to 843] [Pr. 840 = 0]

Vector control Torque limit

Torque bias selection
[Pr. 800 = 0] [Pr. 840 = 0 to 2]
B Torque
Motor Encoder
control
[Pr. 840 = 9999]
Real sensorless
vector control Torque limit
[Pr. 800 = 10] [Pr. 810 = 0]
[Pr. 22, 812 to 817]
[Pr. 810 = 1]
Terminal 1 bias [C16, C17(Pr. 919)] Torque limit
Terminal 1 gain [C18, C19(Pr. 920)] Constant power
Terminal 1 input method
range torque
[Pr. 868 = 4] selection
Terminal 4 bias [C38, C39(Pr. 932)] characteristic
Terminal 4 gain [C40, C41(Pr. 933)] selection
Terminal 4 [Pr. 803]
[Pr. 858 = 4] RT [Pr. 826 = 9999]
[Pr. 826]
Torque [Pr. 74]
setting [Pr. 826 = 9999]
filter RT [Pr. 836 = 9999]
[Pr. 836]
[Pr. 74]
[Pr. 836 = 9999]

80
 Speed control by Real sensorless
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4.4.1 Setting procedure of Real sensorless vector control (speed control) Sensorless

Perform secure wiring. (Refer to page 14.)

Set the motor. (Pr. 71) (Refer to page 169.)

Set "3" (standard motor) or "13" (constant-torque motor) in Pr. 71
Applied motor.
Set the motor capacity and the number of motor poles. (Pr. 80, Pr. 81)
(Refer to page 75.)
Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number of
motor poles (number of poles) in Pr. 81 Number of motor poles.
(V/F control is performed when the setting is "9999" (initial value).)
Select a control method. (Refer to page 75)
Set "10" (speed control) or "12" (speed-torque switchover) in Pr. 800 and make
speed control valid.
Set the operation command. (Refer to page 290)
Select the start command and speed command.
(1) Start command

1) Operation panel: Setting by pressing / of the operation panel

2) External command: Setting by forward rotation and reverse rotation
command (terminal STF or STR)
(2) Speed command

1) Operation panel: Setting by turning of the operation panel

2) External analog command (terminal 2 or 4) :
Give a speed command using the analog signal input to terminal 2 (or
terminal 4).
3) Multi-speed command:
The external signals (RH, RM, RL) may also be used to give speed
command.
Set the torque limit. (Pr. 810)
(Refer to page 83.)

Perform offline auto tuning. (Pr. 96) (Refer to page 171.)

Test run
As required
⋅ Easy gain tuning (Refer to page 88)
⋅ Select online auto tuning. (Pr. 95) (Refer to page 181)
⋅ Manual input speed control gain adjustment (Refer to page 91)

CAUTION
⋅ Make sure to perform offline auto tuning before performing Real sensorless vector control.
4
⋅ Speed command setting range is 0 to 120Hz for Real sensorless vector control.
⋅ The carrier frequencies are selectable from among 2k, 6k, 10k, 14kHz for Real sensorless vector control.
PARAMETERS

⋅ Torque control can not be performed in the low speed (approx. 10Hz or less) regeneration range and with light load at low speed
(approx. 20% or less of rated torque at approx. 5Hz or less). Choose vector control.
⋅ Performing pre-excitation (LX signal and X13 signal) under torque control may start the motor running at a low speed even when
the start command (STF or STR) is not input. The motor may run also at a low speed when the speed limit value = 0 with a start
command input. Perform pre-excitation after making sure that there will be no problem in safety if the motor runs.
⋅ Do not switch between the STF (forward rotation command) and STR (reverse rotation command) during operation under torque
control. Overcurrent trip (E.OC ) or opposite rotation deceleration fault (E.11) occurs.
⋅ When the inverter is likely to start during motor coasting under Real sensorless vector control, set to make frequency search of
automatic restart after instantaneous power failure valid (Pr. 57 ≠ "9999", Pr. 162 = "10").
⋅ Enough torque may not be generated in the ultra-low speed range less than approx. 2Hz when performing Real sensorless
vector control.
The guideline of speed control range is as shown below.
Driving: 1:200 (2, 4, 6 poles) Can be used at 0.3Hz or more at rated 60Hz
1:30 (8, 10 poles) Can be used at 2Hz or more at rated 60Hz
Regeneration:1:12 (2 to 10 poles) Can be used at 5Hz or more at rated 60Hz

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Speed control by Real sensorless vector
control, vector control

4.4.2 Setting procedure of vector control (speed control) Vector

Perform secure wiring. (Refer to page 33.)

Mount the FR-A7AP/FR-A7AL (option).
Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369)
Set Pr. 71 Applied motor, Pr. 359 Encoder rotation direction and Pr. 369
Number of encoder pulses according to the motor and encoder used.
(Refer to page 35.)

Set the motor capacity and the number of motor poles

(Pr. 80, Pr. 81) (Refer to page 75.)
Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number
of motor poles (number of poles) in Pr. 81 Number of motor poles. (V/F
control is performed when the setting is "9999" (initial value).)
Select a control method. (Refer to page 75.)
Make speed control valid by selecting "0" (speed control), "2" (speed-
torque switchover), or "4" (speed-position switchover) for Pr. 800.

Set the run command. (Refer to page 290.)

Select the start command and speed command.
(1) Start command
1)Operation panel: Setting by pressing / of the
operation panel
2)External command: Setting by forward rotation or reverse
rotation command (terminal STF or STR)
(2)Speed command
1)Operation panel: Setting by pressing of the operation panel
2)External analog command (terminal 2 or 4) :
Give a speed command using the analog signal input to
terminal 2 (or terminal 4).
3)Multi-speed command:
The external signals (RH, RM, RL) may also be used to give
speed command.

Set the torque limit. (Pr. 810)

(Refer to page 83.)

Test run

As required
· Perform offline auto tuning. (Pr. 96) (refer to page 171).
· Select online auto tuning. (Pr. 95) (refer to page 181).
· Easy gain tuning (refer to page 88)
· Manual input speed control gain adjustment (refer to page 91)

CAUTION
⋅ Speed command setting range is 0 to 120Hz for vector control.
⋅ The carrier frequencies are selectable among 2k, 6k, 10k, and 14kHz for vector control.

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vector control, vector control

4.4.3 Torque limit level setting for speed control

(Pr. 22, Pr. 803, Pr. 810 to Pr. 817, Pr. 858, Pr. 868, Pr. 874) Sensorless Vector

This function limits the output torque to the predetermined value during speed control under Real sensorless
vector control or vector control.
Set the torque limit level within the range 0 to 400% in Pr. 22.
When the TL signal is turned on, torque limit level 2 is activated.
You can select whether the torque limit level is set using parameters or analog input terminals (terminal 1, 4).
In addition, you can set torque limit level for forward (power driving/regeneration) and reverse (power driving/
regeneration) operation individually.

Parameter
Name Initial Value Setting Range Description
Number
Stall prevention operation
Set the torque limit level in % on the
22* level 150% 0 to 400%
assumption that the rated torque is 100%
(torque limit level)
Set the output start time of the OL signal
0 to 25s
157 OL signal output timer 0s output when torque limit is activated.
9999 Without the OL signal output
Constant motor Select the torque limit
Constant power range 0
output limit in the constant power
803 torque characteristic 0
Constant torque range by torque limit
selection 1
limit setting.
Internal torque limit (torque limit by parameter
0
Torque limit input method settings)
810 0
selection 1
External torque limit (torque limit by terminal
1, 4)
Speed setting and
running speed
monitor increments Torque limit setting
from the PU, RS- increments
485 communication Pr. 22, Pr. 812 to Pr. 817
811 Set resolution switchover 0 or communication
option.
0 1r/min
0.1%
1 0.1r/min
10 1r/min
0.01%
11 0.1r/min
Set the torque limit level for forward rotation
Torque limit level 0 to 400%
812 9999 regeneration.
(regeneration) 9999 Limit at the value of Pr. 22 or analog terminal
Set the torque limit level for reverse rotation
Torque limit level (3rd 0 to 400%
813 9999 driving.
quadrant) 9999 Limit at the value of Pr. 22 or analog terminal
Set the torque limit level for reverse rotation
Torque limit level (4th 0 to 400%
814 9999 regeneration.
quadrant) 9999 Limit at the value of Pr. 22 or analog terminal
When the torque limit selection (TL) signal is
815 Torque limit level 2 9999
0 to 400% on, the Pr. 815 value is a torque limit value
regardless of Pr. 810 .
4
9999 The torque limit set to Pr. 810 is valid.
Torque limit level during 0 to 400% Set the torque limit value during acceleration.
816
PARAMETERS

9999
acceleration 9999 Same torque limit as at constant speed
Torque limit level during 0 to 400% Set the torque limit value during deceleration.
817 9999
deceleration 9999 Same torque limit as at constant speed
Terminal 4 function When "4" is set in, the torque limit can be
858 0 0, 4, 9999
assignment changed with a signal to terminal 4.
Terminal 1 function When "4" is set in, the torque limit can be
868 0 0, 2 to 5, 9999
assignment changed with a signal to terminal 1.
This function can make an inverter trip if the
874 OLT level setting 150% 0 to 200% torque limit is activated to stall the motor. Set
the output at which an inverter trip is made.
* This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write
selection.

CAUTION
⋅ Under Real sensorless vector control, the lower limit of torque limit level is set 30% if the value less than 30% is input.

83
Speed control by Real sensorless vector
control, vector control

(1) Torque limit block diagram

<Vector control>
Torque limit
Speed control Iq current control
Speed command +
IM
-

Encoder

(2) Selection of torque limit input method (Pr. 810)

⋅ Set Pr. 810 Torque limit input method selection to select the method to limit output torque during speed control.
Torque limit by parameter setting is initially set.
Parameter Torque Limit Input
Setting Range Description
Number Method
Parameter-set torque limit operation is performed.
0 (initial value) Internal torque limit Changing the torque limit parameter value by communication
810 enables torque limit to be input by communication.
Torque limit using analog voltage (current) to terminal 1 or terminal 4
1 External torque limit
is enabled.

(3) Torque limit level by parameter setting (Pr. 810 = "0", Pr. 812 to Pr. 814 )
⋅ In the initial setting, limit is made on all quadrants on the Pr.
Torque limit
22 Stall prevention operation level (torque limit level) .
+
⋅ When you want to set the level on a quadrant basis, set the
Reverse Forward torque limit level in Pr. 812 Torque limit level (regeneration), Pr.
regeneration driving 813 Torque limit level (3rd quadrant), Pr. 814 Torque limit level
Reverse quad4 quad1 Forward (4th quadrant).
rotation ( Pr. 814) ( Pr. 22) rotation
Speed
When "9999" is set, Pr. 22 is the torque limit level.
quad3 quad2
( Pr. 813) ( Pr. 812)
Reverse Forward
driving regeneration

-
Rated speed

(4) Torque limit level by analog input (terminal 1, 4) (Pr. 810 = "1", Pr. 858, Pr. 868 )
⋅ With the upper limit of torque limit as set in Pr. 22, the analog input from terminal 1 input is used as the torque limit
value within the Pr. 22 setting range.
⋅ When torque limit value is input from terminal 1, set "4" in Pr. 868 Terminal 1 function assignment. When torque limit
value is input from terminal 4, set "4" in Pr. 858 Terminal 4 function assignment.
When Pr. 858 = "4" and Pr. 868 = "2," torque is limited by analog input to terminal 1 for regeneration and to terminal 4
for driving.
⋅ Torque limit by analog input can be calibrated using calibration parameter C16 (Pr. 919) to C19 (Pr. 920), C38 (Pr. 932) to
C41 (Pr. 933) . (Refer to page 277)
When Pr.858=4, Pr.868=2 Torque limit
Torque limit
+ Reverse + Forward
regeneration driving
Reverse Forward Terminal 1 input or Terminal 4 input or
internal torque limit internal torque limit
regeneration driving (Pr.22 etc.) whichever (Pr.22 etc.) whichever
Reverse quad4 quad1 Forward is smaller is smaller
quad4
rotation * ( Pr. 814) ( Pr. 22) * rotation Reverse rotation quad1 Forward rotation
Speed Speed
* quad3 quad2 * quad3
( Pr. 813) ( Pr. 812) Terminal 4 input or quad2 Terminal 1 input or
internal torque limit internal torque limit
Reverse Forward (Pr.22 etc.) whichever (Pr.22 etc.) whichever
regeneration is smaller is smaller
driving
Reverse Forward
driving regeneration
- -
Rated speed Rated speed
* Analog input (terminal 1, 4) or internal torque control (Pr. 22 etc.) whichever is smaller

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 Speed control by Real sensorless
vector control, vector control

Terminal 1, 4 function according to control (⎯ : without function)

Real Sensorless Vector Control (Speed Control)
Pr. 858 Setting *1 Pr. 868 Setting *2
Terminal 4 function Terminal 1 function
0
Speed setting auxiliary
(initial value)
1 *4 Magnetic flux command
2 ⎯
0 Speed command
3 ⎯
(initial value) (AU signal-ON)
4 Torque limit (Pr. 810 = 1)
5 ⎯
6 *4 Torque bias (Pr. 840 = 1 to 3)
9999 ⎯
0
Magnetic flux command Speed setting auxiliary
(initial value)
1 *4 ⎯ *3 Magnetic flux command
2 ⎯
1 *4 3 ⎯
4 Torque limit (Pr. 810 = 1)
Magnetic flux command
5 ⎯
6 *4 Torque bias (Pr. 840 = 1 to 3)
9999 ⎯
0
Speed setting auxiliary
(initial value) Torque limit (Pr. 810 = 1)
1 *4 Magnetic flux command
2 Driving torque limit (Pr. 810 = 1) Regenerative torque limit (Pr. 810 = 1)
4 *2 3 Torque limit (Pr. 810 = 1) ⎯
4 ⎯ *3 Torque limit (Pr. 810 = 1)
5 ⎯
6 *4 Torque limit (Pr. 810 = 1) Torque bias (Pr. 840 = 1 to 3)
9999 ⎯
9999 ⎯ ⎯ ⎯
*1 When the Pr. 868 setting is other than "0", other functions of terminal 1 (auxiliary input, override function, PID control) do not function.
*2 When the Pr. 858 setting is other than "0", PID control and speed command from terminal 4 do not function even if the AU signal turns on.
*3 When "1" (magnetic flux command) or "4" (torque limit) is set in both Pr. 858 and Pr. 868, function of terminal 1 has higher priority and terminal 4
has no function.
*4 Setting is valid only when exercising vector control with the FR-A7AP/FR-A7AL (option).

(5) Second torque limit level (TL signal, Pr. 815)

⋅ For Pr. 815 Torque limit level 2 , the Pr. 815 value is a torque
Torque limit
limit value regardless of Pr. 810 Torque limit input method
selection when the torque limit selection signal (TL) is on.
Reverse Forward ⋅ Set "27" in Pr. 178 to Pr. 189 (input terminal function selection)
regeneration driving to assign a function to the TL signal.
Pr.815 Pr.815
- quad4 quad1 +
Speed

Pr.815 quad3 quad2 Pr.815 4

Reverse Forward
driving regeneration
PARAMETERS

Reverse Forward
rotation rotation
Rated speed

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

85
Speed control by Real sensorless vector
control, vector control

(6) Set a torque limit value during acceleration and deceleration individually (Pr. 816, Pr. 817 )
⋅ You can set torque limit during acceleration and deceleration individually.
The following chart shows torque limit according to the settings of Pr. 816 Torque limit level during acceleration and Pr.
817 Torque limit level during deceleration.

Pr. 816 Pr. 22 Pr. 817

Torque limit level during acceleration Torque limit level Torque limit level during deceleration
Torque limit level

Output 1s
frequency After the state where
(Hz) difference between the
set speed and running
speed is within ±2Hz has
persisted for 1s, torque
Set limit level during
frequency acceleration / deceleration
(Pr. 816 or Pr. 817) shifts to
torque limit level during
constant speed (Pr. 22).

Acceleration Time
Constant speed Deceleration

(7) Setting increments switchover of the torque limit level (Pr. 811 )
⋅ By setting "10, 11" in Pr. 811 Set resolution switchover, the setting increments of Pr. 22 Torque limit level and Pr. 812 to
Pr. 817 (torque limit level) can be switched to 0.01%.
REMARKS
⋅ The internal resolution of the torque limit is 0.024% (100/212) and the fraction less than the resolution is rounded off.
⋅ When the torque limit setting increments have been changed (0.1%⇔0.01%), reset is necessary because the settings of Pr. 22
and Pr. 812 to Pr. 817 are multiplied by 1/10 (ten times).
For example, when 10 (0.01%) set in Pr. 811 is changed to 1 (0.1%) with Pr. 22 = 150.00%,
Pr. 22 = 1500.0% and the maximum torque is 400%.
⋅ The fraction less than the resolution equivalent to 0.1% is rounded off even if "10 or 11" is set in Pr. 811 when Real sensorless
vector control is selected.
⋅ Refer to page 227 for switchover of speed setting increments.

(8) Change the torque characteristics in the constant power range (Pr. 803)
⋅ You can select whether the torque limit in the constant
Torque Constant power range
power range be constant torque limit (setting is "1") or
Constant torque range Pr. 803 = 1: constant power limit (initial setting is "0"), using Pr. 803
constant torque limit
Constant power range torque characteristic selection under
Pr. 803 = 0: torque limit operation.
constant power limit
(torque reduction)

Speed
Base speed

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 Speed control by Real sensorless
vector control, vector control

(9) Trip when torque limit is activated (Pr. 874 )

⋅ This function can cause a trip if the torque limit is activated
Torque to stall the motor.
⋅ The motor stalls if the torque limit is activated under a high
Pr. 874 Torque limit load applied during speed control or position control. At this
Output torque time, if the motor speed is lower than the speed set in Pr.
Time 865 Low speed detection and also the output torque exceeds
Output the level set in Pr. 874 OLT level setting for 3s, it is regarded
frequency as a stop effected by stall prevention and E. OLT is output,
resulting in a trip.
Pr. 865
Time
Start
signal
(STF)
3s
Fault
output E.OLT occurrence

REMARKS
⋅ If the frequency has fallen to 0.5Hz by stall prevention operation and remains for 3s under V/F control and Advanced magnetic
flux vector control, a fault (E.OLT) appears and trip the inverter. In this case, this function is activated regardless of Pr. 874 .
This fault is not provided under torque control.

(10) Stall prevention operation signal output and output timing adjustment (OL signal, Pr. 157)
⋅ When the output torque exceeds the torque limit level and torque limit is activated, the stall prevention operation
signal (OL signal) turns ON for longer than 100ms. When the output torque falls to or below the torque limit level,
the output signal turns OFF.
⋅ Use Pr. 157 OL signal output timer to set whether the OL signal is output immediately or after a preset period of time.
⋅ This operation is also performed when the regeneration avoidance function (overvoltage stall) is executed.
Pr. 157 Setting Description
Overload state
0
Output immediately (OL operation)
(initial value)
0.1 to 25 Output after the set time (s) has elapsed OL output signal
9999 Not output
Pr.157 Set time(s)

REMARKS
⋅ The OL signal is assigned to the terminal OL in the initial setting. The OL signal can also be assigned to the other terminal by
setting "3 (positive logic) or 103 (negative logic)" to any of Pr. 190 to Pr. 196 (output terminal function selection).

CAUTION
· When speed control is performed, a fault (E.OLT) is displayed and the inverter output is stopped if frequency drops to the Pr.
865 Low speed detection (initial value is 1.5Hz) setting by torque limit operation and the output torque exceeds Pr. 874 OLT level
setting (initial value is 150%) setting and remains for more than 3s.
· When terminal assignment is changed using Pr. 190 to Pr. 196 (output terminal function selection), the other functions may be
affected. Set parameters after confirming the function of each terminal. 4
♦Parameters referred to♦
PARAMETERS

⋅ Pr. 22 Stall prevention operation level Refer to page 135

⋅ Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
⋅ Pr. 840 Torque bias selection Refer to page 97
⋅ Pr. 865 Low speed detection Refer to page 222

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Speed control by Real sensorless vector
control, vector control

4.4.4 To perform high accuracy/fast response operation (gain adjustment of Real

sensorless vector control and vector control) (Pr. 818 to Pr. 821, Pr. 830,
Pr. 831, Pr. 880) Sensorless Vector

The ratio of the load inertia to the motor inertia (load moment of inertia) is estimated in real time from the torque
command and speed during motor operation by vector control. As optimum gain of speed control and position
control are automatically set from the load inertia ratio and response level, time and effort of making gain
adjustment are reduced. (Easy gain tuning)
When the load inertia ratio cannot be estimated due to load fluctuation or Real sensorless vector control is
exercised, control gain is automatically set by manually inputting the load inertia ratio.
Make a manual input adjustment when vibration, noise or any other unfavorable phenomenon occurs due to
large load inertia or gear backlash, for example, or when you want to exhibit the best performance that matches
the machine.

Parameter
Name Initial Value Setting Range Description
Number
Easy gain tuning Set the response level.
818 2 1 to 15
response level setting 1: Slow response to 15: Fast response
0 Without easy gain tuning
Easy gain tuning With load estimation, with gain calculation
819 0 1
selection (valid only during vector control)
2 With load (Pr. 880) manual input, gain calculation
Set the proportional gain for speed control.
(Increasing the value improves trackability in
820 Speed control P gain 1 60% 0 to 1000%
response to a speed command change and
reduces speed variation with disturbance.)
Set the integral time during speed control.
Speed control integral (Decrease the value to shorten the time taken for
821 0.333s 0 to 20s
time 1 returning to the original speed if speed variation
with disturbance occurs.)
Second function of Pr. 820 (valid when RT signal is
0 to 1000%
830 Speed control P gain 2 9999 on)
9999 No function
Second function of Pr. 821 (valid when RT signal is
Speed control integral 0 to 20s
831 9999 on)
time 2
9999 No function
880 Load inertia ratio 7 times 0 to 200 times Set the load inertia ratio to the motor.

88
 Speed control by Real sensorless
vector control, vector control

(1) Block diagram of easy gain tuning function

<Vector control>
Automatic setting Load
inertia
moment

Speed control/position loop gain Detector

+ + Current
Command Model speed control gain Motor Encoder
- - control
[Pr. 820, Pr. 821, Pr. 828, Pr. 422]

On when [Pr. 819 = "1, 2"]

On when Torque command

[Pr. 819 = "1"]
Load inertia
Load inertia ratio ratio estimation Actual motor speed
Gain table
[Pr. 880] section

Response level
setting [Pr. 818]

Speed/position feedback

(2) Easy gain tuning execution procedure (Pr. 819 = "1" load inertia ratio automatic estimation)
Easy gain tuning (load inertia ratio automatic
estimation) is valid only in the speed control or Pr. 818 setting 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
position control mode under vector control. Slow
Response level response
Middle Fast
response response
It is invalid under torque control, V/F control,
Guideline of
Advanced magnetic flux vector control and Real mechanical resonance 8 10 12 15 18 22 28 34 42 52 64 79 98 122 150
sensorless vector control. frequency (Hz)

1) Set the response level using Pr. 818 Easy gain

tuning response level setting.
Refer to the diagram on the right and set the Large conveyor General machine tool,
conveyor
response level.
Increasing the value will improve trackability
to the command, but too high value will
Arm robot Precision
generate vibration. The relationship between machine tool
the setting and response level are shown on
the right.

2) Each control gain is automatically set from the load inertia ratio estimated during acceleration/deceleration
operation and the Pr. 818 Easy gain tuning response level setting value.
Pr. 880 Load inertia ratio is used as the initial value of the load inertia ratio for tuning. Estimated value is set in Pr.
880 during tuning. 4
The load inertia ratio may not be estimated well, e.g. it takes a long time for estimation, if the following
conditions are not satisfied.
PARAMETERS

· Time taken for acceleration/deceleration to reach 1500r/min is 5s or less.

· Speed is 150r/min or more.
· Acceleration/deceleration torque is 10% or more of the rated torque.
· Abrupt disturbance is not applied during acceleration/deceleration.
· Load inertia ratio is approx. 30 times or less.
· No gear backlash nor belt looseness is found.

3) Press or to estimate the load inertia ratio or calculate gain any time. (The operation command for
external operation is the STF or STR signal.)

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Speed control by Real sensorless vector
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(3) Easy gain tuning execution procedure (Pr. 819 = "2" load inertia manual input)
Easy gain tuning (load inertia ratio manual input) is valid only in the speed control mode under Real sensorless
vector control or in the speed control or position control mode under vector control.
1) Set the load inertia ratio to the motor in Pr. 880 Load inertia ratio.
2) Set "2" (with easy gain tuning) in Pr. 819 Easy gain tuning selection. Then, Pr. 820 Speed control P gain 1 and Pr. 821
Speed control integral time 1 are automatically set by gain calculation.
Operation is performed in a gain adjusted status from the next operation.
3) Perform a test run and set the response level in Pr. 818 Easy gain tuning response level setting. Increasing the value will
improve trackability to the command, but too high value will generate vibration. (When "2" (parameter write enabled
during operation) is set in Pr. 77 Parameter write selection , response level adjustment can be made during operation.)
REMARKS
· When "1 or 2" is set in Pr. 819 and then returned the Pr. 819 setting to "0" after tuning is executed, tuning results which are set in
each parameter remain unchanged.
· When good tuning accuracy is not obtained after executing easy gain tuning due to disturbance and such, perform fine
adjustment by manual input. Set "0" (without easy gain tuning) in Pr. 819.

(4) Parameters automatically set by easy gain tuning

The following table indicates the relationship between easy gain tuning function and gain adjustment parameter.
Easy Gain Tuning Selection (Pr. 819) Setting
0 1 2
a) Inertia estimation result (RAM) by
easy gain tuning is displayed.
b) Set the value in the following cases:
• Every hour after power-ON
• When a value other than "1" is
Load inertia ratio
Manual input set in Pr. 819 Manual input
(Pr. 880)
• When vector control is changed
to other control (V/F control etc.)
using Pr. 800
c) Write is enabled only during a stop
(manual input)
a) Tuning result (RAM) is displayed. a) Gain is calculated when "2" is
set in Pr. 819 and the result is
Speed control P gain 1 set in the parameter.
(Pr. 820)
b) Set the value in the following cases: b) When the value is read, the
Speed control integral time 1
• Every hour after power-on tuning result (parameter
(Pr. 821)
Manual input • When a value other than "1" is setting value) is displayed.
Model speed control gain
set in Pr. 819
(Pr. 828)
• When vector control is changed
Position loop gain
to other control (V/F control etc.)
(Pr. 422)
using Pr. 800
c) Write (manual input) disabled c) Write (manual input) disabled

CAUTION
· Performing easy gain tuning with larger inertia than the specified value during vector control may cause malfunction such as
hunting. In addition, when the motor shaft is fixed with servo lock or position control, bearing may be damaged. To prevent these,
make gain adjustment by manual input without performing easy gain tuning.

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 Speed control by Real sensorless
vector control, vector control

(5) Manual input speed control gain adjustment

· Make adjustment when any of such phenomena as unusual machine vibration/noise, low response level and
overshoot has occurred.

Proportional gain
· The response speed of a motor is equivalent to 120rad/s when
Pr.820 Speed control P gain 1 = "60% (initial setting)." Increasing the
200rad/s
setting value improves the response level, but setting too large of a
gain will produce vibration and/or unusual noise.
120rad/s
· Decreasing the Pr. 821 Speed control integral time 1 shortens the
Pr. 820 return time taken at a speed change. However, a too short time will
60% 100% Setting generate an overshoot.
(initial value)

· When there is load inertia, the actual speed gain is as given below.

Load
fluctuation

Speed
Since increasing the proportional gain enhances the
response level and decreases the speed fluctuation.

Decreasing the integral time shortens the return time taken.

JM JM: Inertia of the motor

Actual speed gain = speed gain of motor without load ×
JM+JL JL: Motor shaft-equivalent load inertia

· Adjustment procedures are as below:

1)Check the conditions and simultaneously change the Pr. 820 value.
2)If you cannot make proper adjustment, change the Pr. 821 value and repeat step 1).
Phenomenon/
No. Adjustment Method
Condition
Set the Pr. 820 and Pr. 821 values a little higher.
When a speed rise is slow, increase the value 10% by 10% until just before
Load inertia Pr. 820
1 vibration/noise is produced, and set about 0.8 to 0.9 of that value.
is large
If an overshoot occurs, double the value until an overshoot does not occur, and
Pr. 821
set about 0.8 to 0.9 of that value.
Set the Pr. 820 value a little lower and the Pr. 821 value a little higher.
Vibration/noise Decrease the value 10% by 10% until just before vibration/noise is not produced,
Pr. 820
2 generated from and set about 0.8 to 0.9 of that value.
mechanical system If an overshoot occurs, double the value until an overshoot does not occur, and
Pr. 821
set about 0.8 to 0.9 of that value.
Set the Pr. 820 value a little higher.
3 Slow response When a speed rise is slow, increase the value 5% by 5% until just before
Pr. 820
vibration/noise is produced, and set about 0.8 to 0.9 of that value.
Set the Pr. 821 value a little lower.
Long return time
4
(response time)
Decrease the Pr. 821 value by half until just before an overshoot or the unstable phenomenon
does not occur, and set about 0.8 to 0.9 of that value.
4
Overshoot Set the Pr. 821 value a little higher.
5 or unstable Increase the Pr. 821 value double by double until just before an overshoot or the unstable
PARAMETERS

phenomenon occurs. phenomenon does not occur, and set about 0.8 to 0.9 of that value.

REMARKS
· When making manual input gain adjustment, set "0" (without easy gain tuning) (initial value) in Pr. 819 Easy gain tuning
selection.
· Pr. 830 Speed control P gain 2 and Pr. 831 Speed control integral time 2 are valid when the RT terminal is switched on. Make
adjustments in the same way as Pr. 820 and Pr. 821.

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(6) When using a multi-pole motor (8 poles or more)

Specially when using a multi-pole motor with more than 8 poles under Real sensorless vector control or vector control,
adjust Pr. 820 Speed control P gain 1 and Pr. 824 Torque control P gain 1 according to the motor referring to the following
methods.
· For Pr. 820 Speed control P gain 1, increasing the setting value improves the response level, but a too large gain will
produce vibration and/or unusual noise.
· For Pr. 824 Torque control P gain 1, note that a too low value will produce current ripples, causing the motor to generate
sound synchronizing the cycle of current ripples.
Adjustment method
No. Phenomenon/Condition Adjustment Method
Set a higher value in Pr. 820 Speed control P gain 1 according to the motor
inertia.
Since the self inertia of a multi-pole motor tends to become large, make
The motor rotation is unstable in the low
1 adjustment to improve the unstable phenomenon, then make fine adjustment
speed range.
in consideration of the response level using that setting as reference.
In addition, when performing vector control with encoder, gain adjustment
according to the inertia can be easily done using easy gain tuning (Pr. 819 = 1).
2 Speed trackability is poor. Set a higher value in Pr. 820 Speed control P gain 1.
Increase the value 10% by 10% until just before vibration or unusual noise is
Speed variation at the load fluctuation is produced, and set about 0.8 to 0.9 of that value.
3 If you cannot make proper adjustment, increase the value of Pr. 821 Speed
large.
control integral time 1 double by double and make adjustment of Pr. 820 again.
Torque becomes insufficient or torque Set the speed control gain a little higher. (same as No. 1)
ripple occurs at starting or in the low If the problem still persists after gain adjustment, increase Pr. 13 Starting
4
speed range under Real sensorless frequency or set the acceleration time shorter if the inverter is starting to avoid
vector control. continuous operation in the ultra low speed range.
Unusual motor and machine vibration,
5
noise or overcurrent occurs. Set a lower value in Pr. 824 Torque control P gain 1.
Overcurrent or overspeed (E.OS) occurs Decrease the value 10% by 10% until just before the phenomenon is
6 at a start under Real sensorless vector improved, and set about 0.8 to 0.9 of that value.
control.

(7) P/PI switchover (X44 signal)

· By turning the P/PI control switching signal (X44) on/off during seed control operation under Real sensorless vector
control or vector control, you can select whether to add the integral time (I) or not when performing gain adjustment
with P gain and integral time.
When the X44 signal is off............. PI control
When the X44 signal is on............. P control
· For the terminal used for X44 signal input, set "44" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function.

[Function block diagram]

Speed
command
Speed
command Speed
+ + Torque
proportional Motor
operation control
- +

X44 Speed
integral
operation
Integration
0 cleared to 0
X44
Speed estimator

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

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 Speed control by Real sensorless
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(8) Troubleshooting (speed)

Phenomenon Cause Countermeasures

(1) The motor wiring is wrong (1) Wiring check
Select V/F control (set "9999" in Pr. 80 or Pr. 81 ) and
check the rotation direction of the motor.
For the SF-V5RU (1500r/min series), set "160V
(320V)" in Pr. 19 Base frequency voltage, and set "50Hz"
in Pr. 3 Base frequency.
When the forward rotation signal is input,
the motor running in the counterclockwise
direction as viewed from the motor shaft is
normal. (If it runs in the clockwise direction,
the phase sequence of the inverter output
side wiring is incorrect.)
(2) Encoder specifications (encoder (2) Check the encoder specifications.
specification selection switch Check the encoder specifications selection switch
(FR-A7AP/FR-A7AL (option))) (FR-A7AP/FR-A7AL (option)) of differential/
are wrong complementary
(3) The encoder wiring is wrong. (3) Check that FWD is displayed when running the motor
in the counter-clockwise direction from outside during
a stop of the inverter with vector control setting.
If REV is displayed, the encoder phase sequence is
Motor does not rotate. wrong.
1 Perform the correct wiring or match the Pr. 359 Encoder
(Vector control)
rotation direction.
Pr. 359 Relationship between the Motor
Setting and Encoder

CW
0 A
Encoder
Clockwise direction as viewed
from A is forward rotation

CCW
1 A
(Initial value) Encoder
Counter clockwise direction as
viewed from A is forward rotation

(4) The Pr. 369 Number of encoder (4) The motor will not run if the parameter setting is
pulses setting and the number of smaller than the number of encoder pulses used. Set
encoder used are different. the Pr. 369 Number of encoder pulses correctly.
(5) Encoder power specifications (5) Check the power specifications (5V/12V/15V/24V) of
are wrong. Or, power is not input. encoder and input the external power supply.
(1) The speed command from the (1) Check that a correct speed command comes from the
command device is incorrect. command device.
The speed command is Decrease Pr. 72 PWM frequency selection.
Motor does not run at
correct speed. (Speed
compounded with noise. 4
2 (2) The speed command value (2) Readjust speed command bias/gain Pr. 125, Pr. 126, C2
command does not match
does not match the inverter- to C7 and C12 to C15.
actual speed)
recognized value.
PARAMETERS

(3) The number of encoder pulses (3) Check the setting of Pr. 369 Number of encoder pulses.
setting is incorrect. (vector control)
(1) Insufficient torque. (1) -1 Increase the torque limit value.
Torque limit is actuated. (Refer to torque limit of speed control on page 83 )
Speed does not rise to the (1) -2 Insufficient capacity
3
speed command.
(2) Only P (proportional) control is (2) When the load is heavy, speed deviation will occur
selected. under P (proportional) control. Select PI control.

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Speed control by Real sensorless vector
control, vector control

Phenomenon Cause Countermeasures

(1) The speed command varies. (1) -1 Check that a correct speed command comes from
the command device. (Take measures against
noises.)
(1) -2 Decrease Pr. 72 PWM frequency selection.
(1) -3 Increase Pr. 822 Speed setting filter 1. (Refer to page 269 )
4 Motor speed is unstable. (2) Insufficient torque. (2) Increase the torque limit value.
(Refer to torque limit of speed control on page 83 )
(3) The speed control gains do not (3) -1 Perform easy gain tuning. (Refer to page 89 )
match the machine. (mechanical (3) -2 Adjust Pr. 820, Pr. 821. (Refer to page 91)
resonance) (3) -3 Perform speed feed forward/model adaptive speed
control.
(1) The speed control gain is high. (1) -1 Perform easy gain tuning. (Refer to page 89)
(1) -2 Decrease Pr. 820 and increase Pr. 821.
Motor or machine hunts (1) -3 Perform speed feed forward control and model
5 (vibration/noise is adaptive speed control.
produced).
(2) The torque control gain is high. (2) Decrease the Pr. 824 value.
(3) The motor wiring is wrong. (3) Check the wiring
(1) Insufficient torque. (1) -1 Increase the torque limit value.
Acceleration/deceleration (Refer to torque limit of speed control on page 83 )
6 time does not match the (1) -2 Perform speed feed forward control.
setting. (2) Large load inertia. (2) Set the acceleration/deceleration time that meets the
load.
(1) The speed control gains do not (1) -1 Perform easy gain tuning. (Refer to page 89)
match the machine. (1) -2 Adjust Pr. 820, Pr. 821. (Refer to page 91)
(1) -3 Perform speed feed forward control and model
Machine operation is
7 adaptive speed control.
unstable.
(2) Slow response because of (2) Change the acceleration/deceleration time to an
improper acceleration/ optimum value.
deceleration time of the inverter.
(1) Adverse effect of high carrier (1) Decrease Pr. 72 PWM frequency selection.
Speed fluctuates at low
8 frequency.
speed.
(2) Low speed control gain. (2) Increase Pr. 820 Speed control P gain 1.

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 Speed control by Real sensorless
vector control, vector control

4.4.5 Speed feed forward control, model adaptive speed control (Pr. 828, Pr. 877 to Pr.
881) Sensorless Vector

By making parameter setting, select the speed feed forward control or model adaptive speed control.
The speed feed forward control enhances the trackability of the motor in response to a speed command
change.
The model adaptive speed control enables individual adjustment of speed trackability and motor disturbance
torque response.

Parameter
Name Initial Value Setting Range Description
Number
Model speed control
828 60% 0 to 1000% Set the gain for model speed controller.
gain
Speed feed forward 0 Normal speed control is exercised.
control/model 1 Speed feed forward control is exercised.
877 0
adaptive speed
2 Model adaptive speed control is enabled.
control selection
Set the primary delay filter for the speed feed
Speed feed forward
878 0s 0 to 1s forward result calculated using the speed
filter command and load inertia ratio.
Speed feed forward Limits the maximum value of the speed feed
879 150% 0 to 400%
torque limit forward torque.
880 Load inertia ratio 7 times 0 to 200 times Set the load inertia ratio to the motor.
Speed feed forward
881 0% 0 to 1000% Set the feed forward calculation result as a gain.
gain

POINT
When model adaptive speed control is selected, the data obtained from easy gain tuning is used for Pr. 828 Model
speed control gain. Perform easy gain tuning also (simultaneously). (Refer to page 88)

(1) Speed feed forward control (Pr. 877 = "1")

⋅ Calculate required torque in response to the acceleration/deceleration command for the inertia ratio set in Pr. 880 and
generate torque immediately.
⋅ When the speed feed forward gain is 100%, the calculation result of the speed feed forward is reflected as-is.
⋅ If the speed command changes suddenly, large torque is generated due to the speed feed forward calculation. The
maximum value of the speed feed forward is limited using Pr. 879.
⋅ Using Pr.878, the speed feed forward result can be dulled by the primary delay filter.

[Block diagram]
Speed feed forward control
[Pr. 879] [Pr. 878]
Speed feed Speed feed
Load inertia ratio forward torque forward
Speed feed limit filter 4
J s forward
[Pr. 880] gain
[Pr. 881]
PARAMETERS

Speed +
+ control +
Speed command Torque control IM
P gain 1
- [Pr. 820] +
Speed control
Actual speed controller
integral time 1
[Pr. 821]

Speed estimator

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Speed control by Real sensorless vector
control, vector control

(2) Model adaptive speed control (Pr. 877 = "2")

⋅ The motor's model speed is calculated to feed back the model side speed controller. This model speed is also used
as the actual speed controller command.
⋅ The inertia ratio in Pr. 880 is used for calculation of the torque current command value given by the model side speed
controller.
⋅ The torque current command value of the model side speed controller is added to the output of the actual speed
controller, and the result is used as the iq current control input.
Pr. 828 is used for model side speed control (P control), and the first gain in Pr. 820 is used for the actual speed
controller. The model adaptive speed control is valid for the first motor only.
⋅ When Pr. 877 = 2, switching to the second motor handles the second motor as Pr. 877 = 0.

[Block diagram]

Model adaptive speed control

J
Torque coefficient
(J: [Pr. 880] )

+ Model speed + Speed control +

1 + Torque
Speed command control gain P gain 1 IM
J s control
- [Pr. 828] - [Pr. 820] +
Model speed Speed control
calculation Actual speed controller integral time 1
[Pr. 821]

Speed
estimator

CAUTION
The adequate gain value for the model and actual loop parts are set according to the response setting of easy gain tuning under
model adaptive speed control. To increase the response level, the Pr. 818 Easy gain tuning response level setting needs to be
changed (increased).

(3) Combination of easy gain tuning

The following table indicates the relationships between the speed feed forward/model adaptive speed control and easy
gain tuning function.
Easy Gain Tuning Selection (Pr. 819) Setting
0 1 2
Inertia ratio estimation value
found by easy gain tuning is
Load inertia ratio
Manual input displayed. Manual input
(Pr. 880)
Manual input enabled only
during a stop.
Speed control P gain 1 Tuning results are displayed. Tuning results are displayed.
Manual input
(Pr. 820) Write disabled Write disabled
Speed control integral time 1 Tuning results are displayed. Tuning results are displayed.
Manual input
(Pr. 821) Write disabled Write disabled
Model speed control gain Tuning results are displayed. Tuning results are displayed.
Manual input
(Pr. 828) Write disabled Write disabled
Speed feed forward gain
Manual input Manual input Manual input
(Pr. 881)

♦Parameters referred to♦

Pr. 820 Speed control P gain 1, Pr. 830 Speed control P gain 2 Refer to page 88
Pr. 821 Speed control integral time 1, Pr. 831 Speed control integral time 2 Refer to page 88

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 Speed control by Real sensorless vector
control, vector control

4.4.6 Torque biases (Pr. 840 to Pr. 848) Vector

This function accelerates the rise of the torque at a start. Adjust the torque at a motor start using the contact
signals or analog signals .

Parameter
Name Initial Value Setting Range Description
Number
Set the torque bias amount with the contact signal
0
(X42, X43) using Pr. 841 to Pr. 843.
Set the terminal 1-based torque bias amount as
1 desired in C16 to C19 . (in the case a cage goes up
when a motor runs reversely)
Set the terminal 1-based torque bias amount as
840 Torque bias selection 9999
2 desired in C16 to C19 . (in the case a cage goes up
when a motor runs forward)
The terminal 1-based torque bias amount can be
3 set automatically in C16 to C19, Pr. 846 according
to the load.
9999 Without torque bias, rated torque 100%
841 Torque bias 1 600 to 999% Negative torque bias amount (-400% to -1%)
842 Torque bias 2 9999 1000 to 1400% Positive torque bias amount (0% to 400%)
843 Torque bias 3 9999 Without torque bias setting
0 to 5s Time until torque rises.
844 Torque bias filter 9999
9999 Same operation as when 0s is set.
Time for maintaining torque equivalent to the
Torque bias operation 0 to 5s
845 9999 torque bias amount.
time
9999 Same operation as when 0s is set.
Torque bias balance 0 to 10V Set the voltage under balanced load.
846 9999
compensation 9999 Same operation as when 0V is set.
Fall-time torque bias 0 to 400% Set the bias value of the torque command.
847 9999
terminal 1 bias 9999 Same as at a rise time (C16, C17 (Pr. 919)).
Fall-time torque bias 0 to 400% Set the gain value of the torque command.
848 9999
terminal 1 gain 9999 Same as at a rise time (C18, C19 (Pr. 920)).
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.

(1) Block diagram

Speed
Speed command Speed command + + + Torque
control IM
P gain Speed + + control
-
control
integral time Encoder CW

0 Cage
Integration cleared to 0
[Pr. 845]
Internal parameters [Pr. 840 = 0] [Pr. 840 = 1, 2, 3] 4
Torque bias selection 1 X42 [Pr. 841]
X43 [Pr. 842]
Torque bias selection 2 [Pr. 843]
PARAMETERS

C16, C17 CW Cage

SD +
[Pr. 919] [Pr. 826]
-
C18, C19 Torque setting filter 1
[Pr. 846] [Pr. 920] CW > Cage Terminal 1 Load
detector

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Speed control by Real sensorless vector
control, vector control

(2) Setting torque bias amount with the contact input (Pr. 840 = "0")
⋅ Select the torque bias amount in the table below according to the combination of contact signals.
⋅ Set "42" in Pr. 178 to Pr. 189 (input terminal function selection) for the terminal used for X42 signal input and set "43" for
the terminal used for X43 signal input to assign functions.
Torque Bias Torque Bias
Selection 1 Selection 2 Torque Bias Amount
(X42) (X43)
OFF OFF 0%
ON OFF Pr. 841 -400% to +400% (setting value : 600 to 1400%)
OFF ON Pr. 842 -400% to +400% (setting value : 600 to 1400%)
ON ON Pr. 843 -400% to +400% (setting value : 600 to 1400%)
Example) when Pr. 841 = 1025, 25% when Pr. 842 = 975, -25% when Pr. 843 = 925, -75%
CAUTION
Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

(3) Setting torque bias amount with terminal 1 (Pr. 840 = "1, 2")
⋅ Calculate torque bias from the load input to terminal 1 as shown in the diagram below and provide torque bias.
⋅ To set torque bias amount by the voltage input to terminal 1, set "6" in Pr. 868 Terminal 1 function assignment.
Pr. 840
Rise (Motor Forward Rotation) Fall (Motor Reverse Rotation)
Setting

Bias amount Bias amount

Torque command
terminal 1 gain Fall-time
C18(Pr. 920) torque bias
terminal 1
C17(Pr. 919) bias C17(Pr. 919)
1 Terminal 1 Terminal 1
Pr. 848 input
input

Torque command Voltage for Fall-time Voltage for

terminal 1 bias max. load torque bias max. load
Voltage for C19(Pr. 920) terminal 1 Voltage for C19(Pr. 920)
C16(Pr. 919)
balanced load gain balanced load
Pr. 846 Pr. 847 Pr. 846

Bias amount Bias amount

Voltage for Fall-time Voltage for
balanced load torque bias
Torque command balanced load
Pr. 846 Voltage for terminal 1 Voltage for
terminal 1 bias Pr. 846
max. load bias max. load
C16(Pr. 919) Pr. 847
2 C19(Pr. 920) C19(Pr. 920)
Terminal 1 Fall-time Terminal 1
C17(Pr. 919) input torque bias C17(Pr. 919) input
terminal 1
Torque command gain
Pr. 848
terminal 1 gain
C18(Pr. 920)

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 Speed control by Real sensorless vector
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(4) Setting torque bias amount with terminal 1 (Pr. 840 = "3")
⋅ C16 Terminal 1 bias command (torque/magnetic flux), C17 Terminal 1 bias (torque/magnetic flux), C18 Terminal 1 gain
command (torque/magnetic flux), C19 Terminal 1 gain (torque/magnetic flux), and Pr. 846 Torque bias balance compensation
can be set automatically according to the load.
⋅ To set torque bias amount by the voltage input to terminal 1, set "6" in Pr. 868 Terminal 1 function assignment.

⋅ Setting C16, C17 (Pr. 919) , C18, C19 (Pr. 920)

Read C16, C17 Press .

Operation without a
(Pr. 919) when
load (setting C16, C17
speed is stable
(Pr. 919) is completed)

Press . Read C18, C19

Operation with a
(Pr. 920) when
(setting C18, C19 maximum load
speed is stable
(Pr. 920) is completed)

⋅ Setting Pr. 846

Press .
Operation with a Torque balance
Read Pr. 846
balanced load compensation under
power driving is
completed.

CAUTION
When starting torque bias operation after completion of automatic setting, set "1 or 2" in Pr. 840.

(5) Torque bias operation

⋅ When a value other than 9999 is set in Pr. 844 Torque bias filter, you can slow the rise of torque. At this time, the
torque rises according to the time constant of the primary delay filter.
⋅ Set the time for output torque be maintained with the torque bias command value alone in Pr. 845 Torque bias operation time.

Speed

Torque bias

Torque bias filter Pr. 844

primary delay time
constant

Output torque

Time when torque is Pr. 845 4

generated by
torque bias setting
PARAMETERS

Pre-excitation LX *

Start signal
* When pre-excitation is not made, the torque bias functions simultaneously with the start signal.

CAUTION
⋅ When torque bias is valid and "6" is set in Pr. 868 , terminal 1 serves as torque command not as frequency setting auxiliary.
When override compensation is set by Pr. 73 and terminal 1 acts as main speed, no main speed (main speed = 0Hz) is selected.
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

Reference parameters
⋅ Pr. 73 Analog input selection Refer to page 263.
⋅ Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207.
⋅ C16 to C19 (torque setting voltage (current) bias and gain) Refer to page 277.

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control, vector control

4.4.7 Prevent the motor from overrunning (Pr. 285, Pr. 853, Pr. 873) Vector

This function prevents the motor from overrunning when the load torque is too large and incorrect number of
encoder is set.

Parameter
Name Initial Value Setting Range Description
Number
Speed deviation excess 9999 Without speed deviation excessive
285 9999
detection frequency *1 0 to 30Hz If the difference (absolute value) between the
speed command value and actual speed during
speed control under vector control exceeds the
Pr. 285 Speed deviation excess detection frequency
853 *2 Speed deviation time 1.0s 0 to 100s for more than the time set in Pr. 853 Speed
deviation time, speed deviation excessive occurs
and inverter fault (E. OSD) appears, resulting in
a trip.
873 *2 Speed limit 20Hz 0 to 120Hz Frequency is limited at the set frequency + Pr. 873.
*1 Acts as overspeed detection frequency under encoder feed back operation. (Refer to page 193)
*2 This parameter can be set when the FR-A7AP/FR-A7AL (option) is mounted.

(1) Speed deviation excessive (Pr. 285, Pr. 853)

When the deviation between the set frequency and actual speed is large, e.g. too large load torque, this function can
cause the inverter to provide a speed deviation excessive fault (E.OSD) and come to a trip.

Set frequency
Frequency

Pr. 285
(Hz)

Actual speed

Time
Pr. 853
Fault output OFF ON
(across A-C)
Speed deviation
excessive fault activated
(E. OSD)

(2) Speed limit (Pr. 873)

This function prevents the motor from overrunning when the setting of number of encoder pulses and the actual
number differ.
When the setting of number of encoder pulses is smaller than the actual number, the motor may increase its speed.
To prevent this, restrict the output frequency with frequency (obtained by adding the set frequency and Pr. 873 ).

Set speed + Pr. 873 value

Value of Pr. 873

Actual speed
Set speed
at error occurrence
Speed during
normal operation.

CAUTION
⋅ If automatic restart after instantaneous power failure (Pr. 57 ≠ 9999) is selected when the setting of number of encoder pulses is
smaller than the actual number, the output speed is limited with the synchronous speed obtained by adding the maximum
setting (Pr. 1) and Pr. 873 setting.
⋅ When speed limit function is activated due to regenerative torque limit, output torque may suddenly decrease. In addition,
output phase loss (E.LF) may occur when speed limit function is activated during pre-excitation.
When the setting of number of encoder pulses are correct, it is recommended to set a maximum value (120Hz) in Pr. 873.

Reference parameters
Pr. 285 Overspeed detection frequency Refer to page 193.

100
 Speed control by Real sensorless
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4.4.8 Notch filter (Pr. 862, Pr. 863) Sensorless Vector

You can reduce the response level of speed control in the resonance frequency band of the mechanical system
to avoid mechanical resonance.

Parameter
Name Initial Value Setting Range Description
Number
862 Notch filter time constant 0 0 to 60 Refer to the following table
863 Notch filter depth 0 0 to 3 0 (deep) → 3 (shallow)

(1) Pr. 862 Notch filter time constant

⋅ If you do not know the mechanical resonance frequency, decrease notch frequency gradually from the highest value.
The point at which the smallest vibration is generated is the notch frequency setting.
⋅ Machine characteristic can be obtained beforehand with machine analyzer by FR Configurator. Necessary notch
frequency can be determined from this.

Setting 0 1 2 3 4 5 6 7 8 9
Frequency Invalid 1000 500 333.3 250 200 166.7 142.9 125 111.1

Setting 10 11 12 13 14 15 16 17 18 19
Frequency 100 90.9 83.3 76.9 71.4 66.7 62.5 58.8 55.6 52.6

Setting 20 21 22 23 24 25 26 27 28 29
Frequency 50 47.6 45.5 43.5 41.7 40 38.5 37 35.7 34.5

Setting 30 31 32 33 34 35 36 37 38 39
Frequency 33.3 32.3 31.3 30.3 29.4 28.6 27.8 27.0 26.3 25.6

Setting 40 41 42 43 44 45 46 47 48 49
Frequency 25.0 24.4 23.8 23.3 22.7 22.2 21.7 21.3 20.8 20.4

Setting 50 51 52 53 54 55 56 57 58 59
Frequency 20.0 19.6 19.2 18.9 18.5 18.2 17.9 17.5 17.2 16.9

Setting 60
Frequency 16.7

(2) Pr. 863 Notch filter depth

⋅ The notch filter with deeper depth has an effect on minimizing mechanical resonance. However, large vibration may
be generated adversely due to substantial phase delay. Make adjustment of notch depth in order of the shallower
depth.

Setting 3 2 1 0
Depth Shallow → ← Deep
Gain -4dB -8dB -14dB -40dB
4
PARAMETERS

101
Torque control by Real sensorless vector
control, vector control

4.5 Torque control by Real sensorless vector control, vector

control
Purpose Parameter that must be Set Refer to Page
Selection of torque command
source and setting of torque Torque command Pr. 803 to Pr. 806 108
command value
Prevent the motor overspeed Speed limit Pr. 807 to Pr. 809 110
Gain adjustment for
Improve torque control accuracy Pr. 824, Pr. 825, Pr. 834, Pr. 835 113
torque control
Stabilize the torque detection signal Torque detection filter Pr. 827, Pr. 837 127

4.5.1 Torque control

Torque control is exercised to develop torque as set in the torque command.
The motor speed becomes constant when the motor output torque and load torque are balanced.
For torque control, therefore, the speed is determined by the load.
For torque control, the motor gains speed as the motor output torque becomes greater than the motor load.
To prevent overspeed, set the speed limit value so that the motor speed does not increase too high.
(Torque control is disabled under speed limit since speed control is exercised.)
When speed limit is not set, the speed limit value setting is regarded as 0Hz to disable torque control.

(1) Block diagram

Constant power range
Torque command torque characteristic selection
Terminal 1 bias [C16,C17 (Pr. 919)] source selection
[Pr. 803]
Terminal 1 gain [C18,C19 (Pr. 920)] [Pr. 804]
Terminal 1
[Pr. 868 = 3, 4]
RT
Torque [Pr. 826 = 9999]
[Pr. 826]
setting
filter [Pr. 74]
[Pr. 826 = 9999]

RT [Pr. 836 = 9999]

[Pr. 836]
[Pr. 74]
[Pr. 836 = 9999]
Parameter
[Pr. 805, Pr. 806]
CC-Link
(FR-A7NC)

16bit digital input

(FR-A7AX)
Pulse train
(FR-A7AL)

Actual speed or estimated speed

< Speed limit value RT Torque control
+ + Encoder
P gain 1 Motor
- [Pr. 824] +
Torque control
integral time 1
[Pr. 825]

RT Torque control
+
P gain 2
[Pr. 834] +
Torque control
integral time 2
[Pr. 835]

Torque detection filter

Actual speed or estimated speed RT

Speed limit value Speed control [Pr. 827]
+
A (proportional RT
Speed - control) [Pr. 837]
limit
value

Speed detection filter

Vector control
[Pr. 800 = 1]

Real sensorless RT
vector control Speed
[Pr. 823]
[Pr. 800 = 11] estimation
RT
[Pr. 833]

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 Torque control by Real sensorless
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Speed limit Analog input offset

adjustment
Terminal 2 bias [C2, C3 (Pr. 902)] [Pr. 849]
AU
Terminal 2 gain [Pr. 125, C4 (Pr. 903)]
Terminal 2
Analog
Terminal 4 bias [C5, C6 (Pr. 904)] input
AU Terminal 4 gain [Pr. 126, C7(Pr. 905)] selection
Terminal 4 [Pr. 73]
[Pr. 858 = 0]

Terminal 1
[Pr. 868 = 0]
RT [Pr. 822 = 9999]
Speed [Pr. 822]
setting filter [Pr. 74]
[Pr. 822 = 9999]

RT [Pr. 832 = 9999] [Pr. 832]

[Pr. 74]
[Pr. 832 = 9999]
RL Operation Mode
Multi-speed [Pr. 79] Speed limit selection
RM selection [Pr. 807 = 0]
[Pr.4 to 6,
RH 24 to 27, [Pr. 807 = 1]
REX 232 to 239]

[Pr. 807 = 2]
Option
Operation
panel
Parameter
[Pr. 808, Pr. 809]
Maximum Reverse
Terminal 1 input 0 to 10V rotation
frequency
[Pr. 1] Forward
Terminal 1 input -10 to 0V rotation
Terminal 1 bias [C12,C13(Pr. 917)] Forward
Terminal 1 gain [C14,C15(Pr. 918)] Terminal 1 input 0 to 10V rotation
Terminal 1
[Pr. 868 = 5] Reverse
Terminal 1 input -10 to 0V rotation
RT [Pr. 822 = 9999]
Speed
[Pr. 822]
setting
filter [Pr. 74]
[Pr. 822 = 9999]
RT [Pr. 832 = 9999]
[Pr. 832]
[Pr. 74]
[Pr. 832 = 9999]

Maximum/minimum Acceleration/deceleration processing

setting
*
[Pr.1]
A
[Pr.2]
[Pr.7] [Pr.8]

* When [Pr. 807 =2] and [Pr. 1 Maximum

frequency] is the speed limit,
acceleration/deceleration processing is not
performed.

4
PARAMETERS

103
Torque control by Real sensorless vector
control, vector control

(2) Operation transition

Speed limit value is

increased up to preset value
according to the Pr.7
Acceleration time setting. Speed limit value Speed limit value is decreased
down to zero according to the Pr.8
Deceleration time setting.

Speed Torque control

Speed limit Speed limit

Start signal
Output torque is provided
according to the terminal 1
Speed control is performed during speed setting.
Output torque
limit. (Thus, torque according to the
commanded is not developed.)

⋅ When "0" is set in Pr. 7 or Pr. 8 , speed control is exercised upon powering off a start signal and the output torque is
limited at the torque limit value.

Speed limit value

Speed Torque control

Speed control
(speed limit)
Start signal
Output torque is provided
according to the terminal 1
setting.
Output torque
Limit at the torque limit value

Item Description
External operation STF, STR signal
Start signal
PU operation and of FR-DU07, FR-PU07 or FR-PU04

Torque command Select the input method of torque command and input the torque command.
Speed limit Select the input method of speed limit and input the speed limit value.

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 Torque control by Real sensorless
vector control, vector control

(3) Operation example (when Pr. 804 = "0")

Torque control is enabled if the actual speed is less than the speed limit value.
When the actual speed reaches or exceeds the speed limit value, speed limit operation starts, torque control is
stopped, and speed control (proportional control) starts.
The following shows the operations in response to the analog input command from terminal 1.

Speed
Pr. 7 Speed limit value Pr. 8
*

* *
Speed

Time

STF
(Forward rotation
command)
Speed limit Torque control operation Speed limit Torque Speed limit
operation operation control operation
(Speed control) (Speed control) operation (Speed control)
OL ON ON ON
*When the speed limit activates, torque according to the commanded is not developed.
1) When STF signal is turned on, the speed limit value is increased according to the time set in Pr. 7 .
2) Speed control operation is performed if the actual speed rises to or above the speed limit value.
3) When the STF signal is turned off, the speed limit value is decreased according to the time set in Pr. 8 .
4) For torque control, the actual speed becomes constant when the torque command and load torque are
balanced.
5) The motor torque developing direction is determined by the combination of the torque command input polarity
and start signal as indicated in the following table.
Torque Command Torque Developing Direction
Polarity STF signal ON STR signal ON
Positive torque Forward rotation direction (forward rotation Reverse rotation direction (forward rotation
command driving/reverse rotation regeneration) regeneration/reverse rotation driving)
Negative torque Reverse rotation direction (forward rotation Forward rotation direction (forward rotation
command regeneration/reverse rotation driving) driving/reverse rotation regeneration)

REMARKS
⋅ When speed limit operation starts, speed control is exercised to enable internal torque limit (Pr. 22 torque limit level) (initial
value). Speed control may not be returned to torque control in this case.
Torque limit be set to external torque limit (terminal 1, 4). (Refer to page 83.)
⋅ Undervoltage avoidance function (Pr. 261 = "11, 12") of power-failure deceleration stop function is invalid under torque control.
When Pr. 261 = "11 (12)", the inverter operates in the same manner as when "1 (2)" is set in Pr. 261.
⋅ Set linear acceleration/deceleration (Pr. 29 = "0 (initial value)") when torque control is exercised. When acceleration/
deceleration patterns other than the linear acceleration/deceleration are selected, the protective function of the inverter may
function. (Refer to page 158)
4
CAUTION
⋅ Performing pre-excitation (LX signal and X13 signal) under torque control (Real sensorless vector control) may start the motor
running at a low speed even when the start command (STF or STR) is not input. The motor may run also at a low speed when
PARAMETERS

the speed limit value = 0 with a start command input. Perform pre-excitation after making sure that there will be no problem in
safety if the motor runs.

105
Torque control by Real sensorless vector
control, vector control

4.5.2 Setting procedure of Real sensorless vector control (torque control) Sensorless

Perform secure wiring.

(Refer to page 14.)

Set the motor. (Pr. 71)

(Refer to page 169.)
Set "3" (standard motor) or "13" (constant torque motor) in Pr. 71
Applied motor.
Set the motor capacity and the number of motor poles. (Pr. 80, Pr. 81)
(Refer to page 75.)
Set the motor capacity (kW) in Pr. 80 Motor capacity and set the
number of motor poles in Pr. 81 Number of motor poles.
(V/F control is performed when the setting is "9999" (initial value).)
Select a control method. (Refer to page 75)
Set either "11" (torque control) or "12" (speed-torque switchover) in
Pr. 800 and make torque control valid.
Set the torque command. (Pr. 804)
(Refer to page 108.)

Set the speed limit. (Pr. 807)

(Refer to page 110.)

Perform offline auto tuning. (Pr. 96)

(Refer to page 171.)

Test run

As required
⋅ Select online auto tuning. (Pr. 95) (Refer to page 181.)
⋅ Manual input torque control gain adjustment (Refer to page 113)

CAUTION
⋅ Make sure to perform offline auto tuning before performing Real sensorless vector control.
⋅ The carrier frequencies are selectable from among 2k, 6k, 10k, 14kHz for Real sensorless vector control.
⋅ Torque control can not be performed in the low speed (approx. 10Hz or less) regeneration range and with light load at low speed
(approx. 20% or less of rated torque at approx. 5Hz or less). Choose vector control.
⋅ Performing pre-excitation (LX signal and X13 signal) under torque control may start the motor running at a low speed even when
the start command (STF or STR) is not input. The motor may run also at a low speed when the speed limit value = 0 with a start
command input. Perform pre-excitation after making sure that there will be no problem in safety if the motor runs.
⋅ Do not switch between the STF (forward rotation command) and STR (reverse rotation command) during operation under torque
control. Overcurrent trip (E.OC ) or opposite rotation deceleration error (E.11) occurs.
⋅ When the inverter is likely to start during motor coasting under Real sensorless vector control, set to make frequency search of
automatic restart after instantaneous power failure valid (Pr. 57 ≠ "9999", Pr. 162 = "10").
⋅ Enough torque may not be generated in the ultra-low speed range less than approx. 2Hz when performing Real sensorless
vector control.
The guideline of speed control range is as shown below.
Driving: 1:200 (2, 4, 6 poles) Can be used at 0.3Hz or more at rated 60Hz
1:30 (8, 10 poles) Can be used at 2Hz or more at rated 60Hz
Regeneration:1:12 (2 to 10 poles) Can be used at 5Hz or more at rated 60Hz

106
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vector control, vector control

4.5.3 Setting procedure of vector control (torque control) Vector

Perform secure wiring. (Refer to page 33.)

Mount the FR-A7AP/FR-A7AL (option).
Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369)
Set Pr. 71 Applied motor, Pr. 359 Encoder rotation direction and Pr. 369
Number of encoder pulses according to the motor and encoder used.
(Refer to page 35.)
Set the motor capacity and the number of motor poles. (Pr. 80, Pr. 81)
(Refer to page 75.)
Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number
of motor poles in Pr. 81 Number of motor poles.
(V/F control is performed when the setting is "9999" (initial value).)
Select a control method. (Refer to page 75.)
Set either "1" (torque control), "2" (speed-torque switchover) or "5"
(position-torque switchover) in Pr. 800 and make torque control valid.

Set the torque command. (Pr. 804)

(Refer to page 108.)

Set the speed limit. (Pr. 807)

(Refer to page 110.)

Test run

As required
· Perform offline auto tuning. (Pr. 96) (refer to page 171).
· Select online auto tuning. (Pr. 95) (refer to page 181).
· Manual input torque control gain adjustment (refer to page 113)

CAUTION
⋅ The carrier frequencies are selectable among 2k, 6k, 10k, and 14kHz for vector control.

4
PARAMETERS

107
Torque control by Real sensorless
vector control, vector control

4.5.4 Torque command (Pr. 803 to Pr. 806) Sensorless Vector

Torque command source for torque control can be selected.

Parameter Initial Setting
Number Name Value Range Description

Constant power range Constant motor output

0 Select the torque command in the
command
803 torque characteristic 0 constant power range by torque command
Constant torque setting.
selection 1
command
Torque command input Speed limit
input method
0
Torque command by terminal1 analog input
(Refer to page 277)
Torque command by parameter setting (Pr. 805 or
As set in Pr. 807.
1 Pr. 806)
(-400% to 400%)
2 Torque command by pulse train input (FR-A7AL)
Torque command with
The Pr. 808 and
using CC-Link
Torque command by Pr. 809 settings
communication (FR-
parameter setting are speed limit
Torque command 3 (Pr. 805 or Pr. 806)
A7NC)
regardless of
804 0 (-400% to 400%) Setting from the remote
source selection the Pr. 807
resister can be made.
setting.
(-400% to 400%)
4 12 bit/16 bit digital input (FR-A7AX) As set in Pr. 807.
Torque command by Torque command with
parameter setting The Pr. 808 and
using CC-Link
(Pr. 805 or Pr. 806) Pr. 809 settings
communication (FR-
(Set from communication are speed limit
5 other than CC-Link A7NC)
regardless of
communication Setting from the remote
: -400% to 400%) the Pr. 807
resister can be made.
(Set from CC-Link setting.
(-327.68% to 327.67%)
communication
6 : -327.68% to 327.67%) — As set in Pr. 807.
Torque command Writes the torque command value to the RAM.
1000 600 to
805* % 1400% On the assumption that 1000% is 0%, the torque command is set by
value (RAM) an offset from 1000%.
Torque command Writes the torque command value to the RAM and EEPROM.
1000 600 to
806* value % 1400%
On the assumption that 1000% is 0%, the torque command is set by
(RAM,EEPROM) an offset from 1000%.

* This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write selection.
(1) Control block diagram
[Pr. 804] Torque command Speed estimated
source selection value Speed limit value
0 +
Analog input Torque control Motor
Parameter [Pr. 805, Pr. 806] 1,3,5,6
-
16 bit digital input (FR-A7AX) 4

Pulse train input (FR-A7AL) 2

+ Speed control
Speed limit input Encoder
(proportional control)
Speed estimated
- value Speed limit value
Speed estimator
Real sensorless vector control

Vector control

(2) Torque command (Pr. 804 = "0" (initial value)) by analog input (terminal 1)
⋅ Torque command is given by voltage (current) input to
Torque command
terminal 1.
150%
⋅ When torque command is input from terminal 1, set "3 or
4" in Pr. 868 Terminal 1 function assignment.
⋅ Torque command by analog input can be calibrated using
calibration parameter C16 (Pr. 919) to C19 (Pr. 920). (Refer to
-100% 0 100% Terminal 1
(-10V) (+10V)
page 277 )
analog input

-150%

108
 Torque control by Real sensorless vector
control, vector control

(3) Torque command using parameters (Pr. 804 = "1")

⋅ Torque command value can be set by setting Pr. 805
Torque command value Torque command value (RAM) or Pr. 806 Torque command
value (RAM,EEPROM) .
400%
⋅ For Pr. 805 or Pr. 806, the torque command is set by an
offset from 1000% on the assumption that 1000% is 0%.
Pr.805, Pr.806 The relationship between the Pr. 805 or Pr. 806 setting
600% settings and actual torque command value at this time is shown
1000% 1400% on the left.
⋅ When changing the torque command frequently, write to
Torque command value Pr. 805. Performing frequent parameter write to Pr. 806 will
=Pr.805(or Pr.806)-1000% shorten the life of the EEPROM.
-400%

REMARKS
⋅ When torque command is set in Pr. 805 (RAM), powering off the inverter will erase the changed parameter values. Therefore,
the parameter value available when power is switched on again is the value set in Pr. 806 (EEPROM).

CAUTION
⋅ When giving a torque command by parameter setting, set the speed limit value to an appropriate value to prevent overspeed.
(Refer to page 110.)

(4) Torque command by pulse train input (Pr.804 = "2")

Torque command is set by pulse train input from FR-A7AL (plug-in option).
FR-A7AL needs to be installed for this function.
REMARKS
For details of the setting with the FR-A7AL, refer to the FR-A7AL instruction manual.

(5) Torque command by CC-Link communication (Pr. 804 = "3, 5, 6")

⋅ Writing a value to Pr. 805 or Pr. 806 using the FR-A7NC (communication option) sets the torque command value.
⋅ When "3 or 5" is set in Pr.804, torque command can be set in remote resister RWw1 or RWwC using the FR-A7NC
(communication option).
⋅ By setting "5, 6" in Pr.804, the range of torque command setting from FR-A7NC (communication option) is set from
-327.68% to 327.67% (0.01% increments).
Pr. 804 Setting Torque Command Source Setting Range Increments
1 Torque command by parameter setting (Pr. 805 or Pr. 806) 600 to 1400 (-400% to 400%) 1%
Torque command by parameter setting (Pr. 805 or Pr. 806)
3 Torque command from remote resister (RWw1 or RWwC) 600 to 1400 (-400% to 400%) 1%
with using CC-Link communication (FR-A7NC)
Torque command by parameter setting (Pr. 805 or Pr. 806)
600 to 1400 (-400% to 400%) 1%
without using CC-Link communication (FR-A7NC)
Torque command by parameter setting (Pr. 805 or Pr. 806) -32768 to 32767 (two's complement)
5 0.01%
with using CC-Link communication (FR-A7NC) (-327.68% to 327.67%)
Torque command from remote resister (RWw1 or RWwC) -32768 to 32767 (two's complement)
0.01%
with using CC-Link communication (FR-A7NC) (-327.68% to 327.67%)
Torque command by parameter setting (Pr. 805 or Pr. 806)
600 to 1400 (-400% to 400%) 1%
without using CC-Link communication (FR-A7NC)
6
Torque command by parameter setting (Pr. 805 or Pr. 806) -32768 to 32767 (two's complement) 4
0.01%
with using CC-Link communication (FR-A7NC) (-327.68% to 327.67%)

REMARKS
PARAMETERS

For details of the setting with the FR-A7NC, refer to the FR-A7NC instruction manual.

(6) Torque command by 16-bit digital input (Pr. 804 = 4)

⋅ Give a torque command by 16-bit or 12-bit digital input using FR-A7AX (plug-in option).
REMARKS
For details of the setting with the FR-A7AX, refer to the FR-A7AX instruction manual.

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Torque control by Real sensorless
vector control, vector control

(7) Change the torque characteristics in the constant power (Pr. 803)
Torque Constant power range
⋅ Due to the motor characteristics, torque is reduced at or
Constant torque range
above the base frequency. Set "1" in Pr. 803 Constant
Pr. 803 = 1:
constant torque command
power range torque characteristic selection when you want
to keep the torque to be constant even at or above the
Pr. 803 = 0:
constant power command base frequency.
(torque reduction)

Speed
Base speed

♦Parameters referred to♦

Pr. 868 Terminal 1 function assignment Refer to page 83.
Calibration parameter C16 (Pr. 919) to C19 (Pr. 920) (terminal 1 bias, gain torque) Refer to page 277

4.5.5 Speed limit (Pr. 807 to Pr. 809) Sensorless Vector

Set the speed limit value to prevent overspeed of the motor in case the load torque becomes less than the torque
command value, etc. during torque control operation.

Parameter Setting
Name Initial Value Description
Number Range
Use the speed command value during speed
0
control as speed limit.
According to Pr. 808 and Pr. 809 , set the speed limit
1 in forward and reverse rotation directions
individually.
807 Speed limit selection 0
Forward/reverse rotation speed limit
The analog voltage of the terminal 1 input is used to
2 make speed limit.
The speed limit of the forward rotation and reverse
rotation is switched according to the polarity.
Forward rotation speed
808 60Hz 0 to120Hz Set the speed limit for the forward rotation direction.
limit
Reverse rotation speed 0 to120Hz Set the speed limit of the reverse rotation side.
809 9999
limit 9999 As set in Pr. 808 .

(1) Control block diagram

Speed estimated value < speed limit value
Torque command +
Torque control Motor
Pr. 807 Speed limit selection
Same method 0 -
as speed command input
1 Speed control
+ Encoder
Parameter(Pr. 808, Pr. 809) (proportional control)
2
Forward/reverse rotation speed limit Speed estimated value speed limit value
-
Speed estimator
Real sensorless vector control

Vector control

110
 Torque control by Real sensorless vector
control, vector control

(2) Use the speed command for speed control

Speed
The speed setting (Pr. 807 = "0" initial value)
value is a speed
Forward rotation limit value. ⋅ Set the speed limit in the same method as speed setting
Pr.7 Pr.8 for speed control (speed setting by the PU (FR-DU07/
Speed setting FR-PU07/FR-PU04), multi-speed setting, options, etc.)
value during
speed control ⋅ According to the acceleration time set in Pr. 7 Acceleration
Time time, the limit level is increased from 0Hz upon turning
ON of the start signal, and when the start signal turns off,
Torque controllable the speed limit level is decreased from the then speed
range limit level to the DC injection brake operation speed in Pr.
Reverse rotation
STF(STR) ON OFF 10 to a stop in accordance with the deceleration time set
in Pr. 8 Deceleration time.

REMARKS
⋅ When the above speed limit command is greater than the Pr. 1 Maximum frequency value, the speed limit value is the Pr. 1
Maximum frequency value, and when the speed limit command is less than the Pr. 2 Minimum frequency value, the speed limit
value is the Pr. 2 Minimum frequency value. Similarly when the speed limit command is smaller than Pr. 13 Starting frequency , the
speed limit value is 0Hz.
⋅ When speed limit is set by analog input, perform calibration of the analog input terminal 1, 2 and 4. (Refer to page 277.)

CAUTION
When speed limit is set by the analog command (terminal 1,2,4), turn off the external signals (RH, RM, RL). If any of external
signals (RH, RM, RL) is on, multi-speed limits are valid.

(3) Set the forward rotation and reverse rotation individually (Pr. 807 = "1")
Set the speed limit during forward rotation using Pr. 808 Forward rotation speed limit and the speed limit during reverse
rotation using Pr. 809 Reverse rotation speed limit.
The speed during forward and reverse rotation is limited at the setting value of Pr. 808 when "9999" (initial value) is set
in Pr. 809 .

Speed
Torque controllable range
Forward rotation
Forward rotation
Speed limit Pr. 808 Pr. 7 Pr. 8
Speed limit Pr. 808

150 150
Time
Output torque 0
(%) Speed limit Pr. 809
Speed limit Pr. 809 Torque controllable range
Reverse rotation
Reverse rotation

STF(STR) ON OFF

4
PARAMETERS

111
Torque control by Real sensorless
vector control, vector control

(4) Forward rotation/reverse rotation speed limit (Pr. 807 = "2")

⋅ When making a speed limit using analog input from terminal 1, the speed limit of the forward and reverse rotation
can be switched according to the polarity of voltage.
⋅ Forward/reverse rotation speed limit is valid when Pr. 868 Terminal 1 function assignment = "5".
⋅ For 0 to 10V input, set the forward rotation speed limit. The reverse rotation speed limit at this time is the value of
Pr.1 Maximum frequency.
⋅ For -10 to 0V input, set the reverse rotation speed limit. The forward rotation speed limit at this time is the value of
Pr. 1 Maximum frequency .
⋅ The maximum speed of both the forward and reverse rotations is Pr. 1 Maximum frequency .

When terminal 1 input is "-10 to 0V" When terminal 1 input is "0 to 10V"

Speed
Torque controllable range Speed
Forward rotation
Pr. 1 Forward rotation

Terminal 1
input
150 0 150 150 0 150
Output torque (%) Output
torque (%)
Terminal 1 input

Reverse rotation Pr. 1

Torque controllable range

Reverse rotation

Speed
Torque controllable range
Speed
Torque controllable range
Pr. 1
Pr. 7 Pr. 8
The forward rotation
Terminal 1 input (0 to 10V)
speed limit
The forward rotation speed
limit

Time Time
Terminal 1 input
(-10 to 0V)
Pr. 7 Pr. 8
The reverse Pr. 1
rotation speed The reverse rotation
limit speed limit

Start signal OFF ON Start signal OFF ON

REMARKS
⋅ When making speed limit from terminal 1, make calibration of terminal 1. (Refer to page 277.)

CAUTION
When the actual speed reaches or exceeds the speed limit value, torque control is switched to speed control to prevent
overspeed.
(SL) appears on the operation panel during speed limit operation and the OL signal is output.

♦Parameters referred to♦

Pr. 1 Maximum frequency, Pr. 2 Minimum frequency Refer to page 140
Pr. 7 Acceleration time, Pr. 8 Deceleration time Refer to page 155
Pr. 13 Starting frequency Refer to page 157
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239 (Multi-speed operation) Refer to page 148
Pr. 868 Terminal 1 function assignment Refer to page 262
Pr. 125, Pr. 126, C2 to C7, C12 to C15 (frequency setting voltage (current) bias/gain) Refer to page 271

112
 Torque control by Real sensorless vector
control, vector control

4.5.6 Gain adjustment of torque control (Pr. 824, Pr. 825, Pr. 834, Pr. 835) Sensorless Vector

Although stable operation is possible with the initial value, make adjustment when any of such phenomena as
unusual motor and machine vibration/noise and overcurrent has occurred.

Parameter Setting
Name Initial Value Description
Number Range
Set the current loop proportional gain.
824 Torque control P gain 1 100% 0 to 200%
100% is equivalent to 2000rad/s.
Torque control integral
825 5ms 0 to 500ms Set the current loop integral compensation time.
time 1
Set the current loop proportional gain when the RT
0 to 200%
834 Torque control P gain 2 9999 signal is on.
9999 Without torque control P gain 2 function
Set the current loop integral compensation time when
Torque control integral 0 to 500ms
the RT signal is on.
835 9999
time 2
9999 Without torque control integral time 2 function

(1) Adjustment of current loop proportional (P) gain

⋅ For general adjustment, make setting within the range 50 to 200% as a guideline.
⋅ Set the proportional gain for torque control.
⋅ Increasing the value improves trackability in response to a current command change and reduces current variation
with disturbance. However, a too large gain will cause instability, generating harmonic torque pulsation.

(2) Adjustment of current control integral time

⋅ Set the integral time of current control during torque control.
⋅ A small value enhances the torque response level, but a too small value will cause current fluctuation.
⋅ Decreasing the value shortens the time taken to return to the original torque if current variation with disturbance
occurs.

(3) Use multiple gains

⋅ When you want to change the gain according to applications, switch multiple motors with one inverter, etc., use
Torque control P gain 2 and Torque control integral time 2 .
⋅ Pr. 834 Torque control P gain 2 and Pr. 835 Torque control integral time 2 are valid when the RT signal is ON.
REMARKS
⋅ The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 211.)
⋅ The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection) , you can assign the RT signal to the other terminal.

4
PARAMETERS

113
Torque control by Real sensorless
vector control, vector control

(4) Adjustment procedure

Make adjustment when any of such phenomena as unusual motor and machine vibration/noise/current and
overcurrent has occurred.
1)Check the conditions and simultaneously change the Pr. 824 value.
2)If you cannot make proper adjustment, change the Pr. 825 value and repeat step 1).
Adjustment Method
Set Pr. 824 a little lower and Pr. 825 a little higher. First lower Pr. 824 and check the motor for unusual vibration/noise and
overcurrent. If the problem still persists, increase Pr. 825 .
Decrease the value 10% by 10% until just before unusual noise and current are improved, and set about 0.8 to 0.9
of that value.
Pr. 824
Note that a too low value will produce current ripples, causing the motor to generate sound synchronizing the cycle
of current ripples.
Increase the current value double by double until just before an unusual noise and current does not occur, and set
about 0.8 to 0.9 of that value.
Pr. 825
Note that taking a too long time will produce current ripples, causing the motor to generate sound synchronizing
the cycle of current ripples.

(5) Troubleshooting (Torque)

Phenomenon Cause Countermeasures

(1) The phase sequence of the (1) Check the wiring. (Refer to page 14)
motor or encoder wiring is
wrong.
(2) The Pr. 800 Control method (2) Check the Pr. 800 setting. (Refer to page 75)
selection setting is improper.
(3) The speed limit value is not (3) Set the speed limit value. (If the speed limit value is not
input. input, the motor will not rotate since the speed limit
value is regarded as 0Hz.)
Torque control is not (4) The torque command varies. (4)-1 Check that the command device gives a correct
1 torque command.
exercised normally.
(4)-2 Decrease Pr. 72 PWM frequency selection .
(4)-3 Increase Pr. 826 Torque setting filter 1
(5) The torque command does not (5) Recalibrate C16 Terminal 1 bias command (torque/
match the inverter-recognized magnetic flux), C17 Terminal 1 bias (torque/magnetic flux),
value. C18 Terminal 1 gain command (torque/magnetic flux), C19
Terminal 1 gain (torque/magnetic flux). (Refer to page 277)
(6) Torque variation due to the (6) Select magnetic flux observer by setting Pr. 95 Online
change in the motor auto tuning selection. (Refer to page 181)
temperature.
When the torque
command is small, the Recalibrate C16 Terminal 1 bias command (torque/magnetic
The offset calibration of the torque
2 motor rotates in the flux) and C17 Terminal 1 bias (torque/magnetic flux). (Refer to
command does not match.
direction opposite to the page 277)
start signal.
The speed limit is activated.
Normal torque control
(When Pr. 807 = "0, 2", the speed Reduce the acceleration/deceleration time.
cannot be exercised
limit may be activated since the Or, set the acceleration/deceleration time to "0". (The
3 during acceleration/
speed limit value changes with the speed limit during acceleration/deceleration depends on
deceleration.
setting of the acceleration/ the speed limit during the constant speed.)
The motor vibrates.
deceleration time in Pr. 7 and Pr. 8. )
Output torque is not linear
4 in response to the torque Insufficient torque. Return the excitation ratio in Pr. 854 to the initial value.
command.

♦Parameters referred to♦

Pr. 72 PWM frequency selection Refer to page 261
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 800 Control method selection Refer to page 75
Pr. 807 Speed limit selection Refer to page 110
C16 to C19 (torque setting voltage (current) bias and gain) Refer to page 277

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 Position control by vector control

4.6 Position control by vector control

Purpose Parameter that must be Set Refer to Page
Conditional position control by Position command by
Pr. 419, Pr. 464 to Pr. 494 117
parameter setting parameter
Position control by pulse train input Position command by
Pr. 419, Pr. 428 to Pr. 430 120
of the inverter conditional pulse train
Adjust the gear ratio of motor and Setting the electronic
Pr. 420, Pr. 421, Pr. 424 122
machine gear
Setting of positioning adjustment In-position width
Pr. 426, Pr. 427 123
parameter Excessive level error
Gain adjustment of
Improve position control accuracy Pr. 422, Pr. 423, Pr. 425 124
position control

4.6.1 Position control Vector

In the position control, the speed command is calculated so that the difference between command pulse (or
parameter setting) and the number of feedback pulses from the encoder is zero in order to run the motor.
This inverter can perform simple position feed by contact input, position control by inverter simple pulse input,
and position control by FR-A7AL pulse train input.

(1) Setting procedure

Perform secure wiring. (Refer to page 34.)

Mount the FR-A7AP/FR-A7AL (option).
Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369)
Set Pr. 71 Applied motor, Pr. 359 Encoder rotation direction and Pr. 369
Number of encoder pulses according to the motor and encoder used.
(Refer to page 35.)
Set the motor capacity and the number of motor poles.
(Pr. 80, Pr. 81) (Refer to page 75.)
Set the motor capacity (kW) in Pr. 80 Motor capacity and set the number
of motor poles (number of poles) in Pr. 81 Number of motor poles. (V/F
control is performed when the setting is "9999" (initial value).)
Select a control method. (Refer to page 75.)
Make speed control valid by selecting "3" (position control) "4" (speed-
position switchover) or "5" (position-torque switchover) for Pr. 800.

Selection of position command source. (Pr. 419)

Position command by contact Position command by Position command from the
input inverter pulse train input positioning module of the
Set "0" (initial value) in Pr. 419. Set "2" in Pr. 419. programmable controller
system (through FR-A7AL)
Setting of parameter for position feed Selection of command pulse form. Set Pr. 419 = "1"
(Pr. 465 to Pr. 494). (Pr. 428)
(Refer to page 117.) (Refer to page 120.) Refer to the Instruction Manual of 4
FR-A7AL.
PARAMETERS

Test run

As required
· Set the electronic gear. (refer to page 122)
· Setting of positioning adjustment parameter (refer to page 123)
· Gain adjustment of position control (refer to page 124page 123)

CAUTION
⋅ The carrier frequencies are selectable among 2k, 6k, 10k, and 14kHz for vector control.

115
Position control by vector control

(2) Control block diagram

Position command
RH Pr. 4 to 6 source selection Position feed
RM Pr. 24 to 27 Pr. 465 to Pr. 494 Pr. 419 forward
Pr. 232 to 239 travel Multi-speed, command filter Position feed
RL communication 0 Pr. 425 forward gain
REX Pr. 423
STF Position command
STR Pr.7 Pr.8 acceleration/deceleration
time constant Position
(Pr. 44, Pr. 110)(Pr. 45, Pr. 111) loop gain
Electronic Pr. 424
Command pulse gear Pr. 422 + Speed control
(FR-A7AL) Command pulse selection 1 Pr. 420 + Deviation +
Pr. 428 IM
PGP, PP Pr. 421 - counter -
Command pulse
(FR-A7AL) Pr. 429 Differentiation
PGN, NP Clear signal Encoder
selection
Command pulse Command pulse selection 2
Pr. 428
JOG
Pulse train
sign
NP

(3) Example of operation

The speed command given to rotate the motor is calculated to zero the difference between the number of internal
command pulse train pulses (when Pr. 419 = 0, the number of pulses set by parameter (Pr. 465 to Pr. 494) is changed to
the command pulses in the inverter) and the number of pulses fed back from the motor end encoder.
1) When a pulse train is input, pulses are accumulated in the deviation counter and these droop pulses act as position
control pulses to give the speed command.
2) As soon as the motor starts running under the speed command of the inverter, the encoder generates feed back
pulses and the droop of the deviation counter is counted down. The deviation counter maintains a given droop pulse
value to keep the motor running.
3) When the command pulse input stops, the droop pulses of the deviation counter decrease, reducing the speed. The
motor stops when there are no droop pulses.
4) When the number of droop pulses has fallen below the value set in Pr. 426 In-position width , it is regarded as
completion of positioning and the in-position signal (Y36) turns on.
Command pulse frequency

Droop pulse value

Motor speed [r/min]

[PPS]

Motor speed

Pulse distribution

Acceleration Deceleration Time

Stop settling time

Pulse train Rough Fine Rough

LX signal
Servo on
STF (STR)
Forward (reverse)
Y36 signal
In-position signal
⋅ For conditional position control function by contact input, the STF and STR terminals provide the forward (reverse)
command signal. The motor can run only in the direction where the forward (reverse) signal is on. Turning the STF
signal off does not run the motor forward and turning the STR signal off does not run the motor reverse.
⋅ The pulse train is rough during acceleration and coarse at the maximum speed. During deceleration the pulse train is
rough and at last there are no pulses. The motor stops shortly after the command pulses stop.
This time lag is necessary for maintaining the stop accuracy and called stop settling time.

116
 Position control by vector control

REMARKS
⋅ For the servo on signal (LX), set "23" in Pr. 178 to Pr. 189 (input terminal function selection) to assign the function.
⋅ For the in-position signal (Y36), set "36" in Pr. 190 to Pr. 196 (output terminal function selection) to assign the function.

CAUTION
Changing the terminal function using any of Pr. 178 to Pr. 189, 190 to Pr. 196 may affect the other functions. Set parameters after
confirming the function of each terminal.

♦Parameters referred to♦

Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215

4.6.2 Conditional position feed function by contact input (Pr. 419, Pr. 464 to Pr. 494)
Vector

Inputting the number of pulses (positions) in the parameters and setting multi-speed and forward (reverse)
commands enable position control. The motor does not return to the home position with this conditional position
feed function .

Parameter Setting
Name Initial Value Description
Number Range
Conditional position control function by contact
0
input. (position command by parameter settings)
Pulse train position command from the positioning
Position command source 1
419 0 module of the programmable controller system
selection
(when FR-A7AL is installed)
Conditional pulse train position command by
2
inverter pulse train input
Digital position control Set the time until the inverter stops when the
464 sudden stop deceleration 0s 0 to 360.0s forward rotation (reverse rotation) command is
time turned off with the position feed forward function.

Selection Method
Parameter Setting Position Feed
Name Initial Value (OFF: ×, ON: )
Number Range Frequency
REX RH RM RL
First position feed amount
465 0 0 to 9999
lower 4 digits
× × × High speed (Pr. 4)
First position feed amount
466 0 0 to 9999
upper 4 digits
Second position feed
467 0 0 to 9999
amount lower 4 digits
× × × Middle speed (Pr. 5)
Second position feed
468 0 0 to 9999
amount upper 4 digits
Third position feed
469 0 0 to 9999
amount lower 4 digits
Third position feed
× × × Low speed (Pr. 6) 4
470 0 0 to 9999
amount upper 4 digits
Fourth position feed
PARAMETERS

471 0 0 to 9999
amount lower 4 digits
× × 4 speed (Pr. 24)
Fourth position feed
472 0 0 to 9999
amount upper 4 digits
Fifth position feed amount
473 0 0 to 9999
lower 4 digits
× × 5 speed (Pr. 25)
Fifth position feed amount
474 0 0 to 9999
upper 4 digits
Sixth position feed
475 0 0 to 9999
amount lower 4 digits
× × 6 speed (Pr. 26)
Sixth position feed
476 0 0 to 9999
amount upper 4 digits

117
Position control by vector control

Selection Method
Parameter Setting Position Feed
Name Initial Value (OFF: ×, ON: )
Number Range Frequency
REX RH RM RL
Seventh position feed
477 0 0 to 9999
amount lower 4 digits
× 7 speed (Pr. 27)
Seventh position feed
478 0 0 to 9999
amount upper 4 digits
Eighth position feed
479 0 0 to 9999
amount lower 4 digits
× × × 8 speed (Pr. 232)
Eighth position feed
480 0 0 to 9999
amount upper 4 digits
Ninth position feed
481 0 0 to 9999
amount lower 4 digits
× × 9 Speed (Pr. 233)
Ninth position feed
482 0 0 to 9999
amount upper 4 digits
Tenth position feed
483 0 0 to 9999
amount lower 4 digits
× × 10 speed (Pr. 234)
Tenth position feed
484 0 0 to 9999
amount upper 4 digits
Eleventh position feed
485 0 0 to 9999
amount lower 4 digits
× 11 speed (Pr. 235)
Eleventh position feed
486 0 0 to 9999
amount upper 4 digits
Twelfth position feed
487 0 0 to 9999
amount lower 4 digits
× × 12 speed (Pr. 236)
Twelfth position feed
488 0 0 to 9999
amount upper 4 digits
Thirteenth position feed
489 0 0 to 9999
amount lower 4 digits
× 13 speed (Pr. 237)
Thirteenth position feed
490 0 0 to 9999
amount upper 4 digits
Fourteenth position feed
491 0 0 to 9999
amount lower 4 digits
× 14 speed (Pr. 238)
Fourteenth position feed
492 0 0 to 9999
amount upper 4 digits
Fifteenth position feed
493 0 0 to 9999
amount lower 4 digits
15 speed (Pr. 239)
Fifteenth position feed
494 0 0 to 9999
amount upper 4 digits
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.
.......... Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

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 Position control by vector control

(1) Setting of position feed amount by parameter

⋅Set position feed amount in Pr. 465 to Pr. 494 .
⋅The feed amount set in each parameter is selected by multi-speed terminal (RH, RM, RL, REX).
⋅Set (encoder resolution × speed × 4 times) for position feed amount.
⋅For example, the formula for stopping the motor after 100 rotations using the FR-V5RU is as follows:

2048 (pulse/rev) × 100 (speed) × 4 = 819200 (feed amount)

To set 819200 for the first position feed amount, divide the value into upper four digits and lower four digits and set
81 (decimal) in Pr. 466 (upper) and 9200 (decimal) in Pr. 465 (lower).

(2) Position command operation by parameter

Shaded part is the travel Stops when the STF is

Frequency (Hz)

First position feed amount turned off

Feed speed Pr. 466 10000 + Pr. 465
Pr. 4
Second position
feed amount
Time
Pr. 7 Pr. 8 Pr. 464
Pr. 5
(Pr. 44, Pr. 110) (Pr. 45, Pr. 111)
Servo ON (LX)

RH
Position feed is
RM performed by sending
STF run command by
contact input or
STR communication.
Y36
In-position
⋅ For deceleration by turning the STF(STR) OFF, use Pr. 464 Digital position control sudden stop deceleration time to set
deceleration time.
REMARKS
⋅ Acceleration/deceleration time is 0.1s minimum and 360s maximum.
⋅ Pr. 20 Acceleration/deceleration reference frequency is clamped at a minimum of 16.66Hz (500r/min).
⋅ The acceleration/deceleration patterns for position control are all linear acceleration and the setting of Pr. 29 Acceleration/
deceleration pattern selection is invalid.

CAUTION
Information on multi-speed command (position command by RL, RM, RH, and REX signals) is determined at rising of the forward
(reverse) command to perform position control. Therefore, set forward (reverse) command after multi-speed command (position
command). Position feed is invalid if the multi-speed command is given after forward (reverse) command.

♦Parameters referred to♦

Pr. 20 Acceleration/deceleration reference frequency Refer to page 155
Pr. 29 Acceleration/deceleration pattern selection Refer to page 158 4
PARAMETERS

119
Position control by vector control

4.6.3 Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input Vector

Simple position pulse train command can be input by pulse train input and sign signal (NP) to the JOG terminal.

Parameter Setting
Name Initial Value Description
Number Range
Conditional position control function by contact
0
input. (position command by parameter settings)
Pulse train position command from the positioning
Position command source 1
419 0 module of the programmable controller system
selection
(when FR-A7AL is installed)
Conditional pulse train position command by
2
inverter pulse train input
0 to 2 Pulse train + rotation Negative logic
428 Command pulse selection 0
3 to 5 signal sign Positive logic
Deviation counter is cleared at edge of turning on
0
of the clear signal (CLR) from off.
429 Clear signal selection 1
Deviation counter while the clear signal (CLR) is
1
on
The status of various pulses during running is
0 to 5
430 Pulse monitor selection 9999 displayed.
9999 Frequency monitor is displayed.
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.
.......... Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

(1) Operation
Turning ON the servo ON signal (LX) cancels the output shut-off and the operation ready signal (RDY) turns ON after
0.1s. Turning ON the STF (forward stroke end signal) or STR (forward stroke end signal) runs the motor according to
the commanded pulse. When the forward (reverse) stroke end signal turns OFF, the motor does not run in that
direction.

Forward rotation
Actual rotation
Reverse rotation

Base signal
Servo on (LX)
Forward stroke end (STF)
Reverse stroke end (STR)
Operation ready completion (RDY)
0.1s
Inverter pulse train command
Sign signal (NP)
In-position (Y36)

(2) Pulse train form type selection (Pr. 428, NP signal)

1)Set "2"(conditional pulse train position command) in Pr. 419.
2)Set "68" in Pr. 178 to Pr. 189 (input terminal function selection) to assign simple position pulse train sign (NP).
3)Select command pulse train using Pr. 428
Pr. 428 Setting Command Pulse Train Type At Forward Rotation At Reverse Rotation

Negative Pulse train + JOG

0 to 2
logic rotation signal sign L
NP H

Positive Pulse train + JOG

3 to 5
logic rotation signal sign L
NP H

4)Select vector control, then select position control.

REMARKS
⋅ When Pr. 419 Position command source selection = "2" (conditional pulse train position command), JOG terminal serves as simple
position pulse train input terminal regardless of the Pr. 291 Pulse train I/O selection setting.

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 Position control by vector control

(3) Selection of clear signal (Pr. 429, CLR signal)

⋅ Use this function to zero the droop pulse for home position operation, etc.
⋅ When "0" is set in Pr. 429 , the deviation counter is cleared at the edge of turning ON of the clear signal (CLR). In
addition, the CLR signal turns on in synchronization with zero pulse signal of the encoder at home position
operation, etc., deviation counter is cleared.
⋅ For the terminal used for CLR signal, set "69" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign
the function.
When Pr. 429 = "0" When Pr. 429 = "1 (initial value)"

Deviation counter Deviation counter

image image
CLR ON CLR ON

Counter clear at the edge of Counter clear while ON

turning on of the signal

(4) Pulse monitor selection (Pr. 430 )

The status of various pulses during running is displayed.
Set "0" in Pr. 52 DU/PU main display data selection to display output frequency monitor.
Pr. 430 Display Range Display Range
Description
Setting (FR-DU07) (FR-PU04/FR-PU07)
0 Lower 4 digits Lower 5 digits
The cumulative command pulse value is displayed.
1 Upper 4 digits Upper 5 digits
2 Lower 4 digits Lower 5 digits
The cumulative feedback pulse value is displayed.
3 Upper 4 digits Upper 5 digits
4 Lower 4 digits Lower 5 digits
The droop pulses are monitored.
5 Upper 4 digits Upper 5 digits
9999 Frequency monitor is displayed. (initial value)

REMARKS
⋅ Count the number of pulses when the servo is on.
⋅ The cumulative pulse value is cleared when the base is shut off or the clear signal (CLR) is turned on.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦Parameters referred to♦

Pr. 52 DU/PU main display data selection Refer to page 229
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

4
PARAMETERS

121
Position control by vector control

4.6.4 Setting of the electronic gear (Pr. 420, Pr. 421, Pr. 424) Vector

Set the ratio of the machine side gear and the motor side gear.

Parameter Setting
Name Initial Value Description
Number Range
Command pulse scaling
420 1 0 to 32767 *
factor numerator Set the electric gear.
Command pulse scaling Pr. 420 is a numerator and Pr. 421 is a denominator.
421 1 0 to 32767 *
factor denominator
Position command Used when rotation has become unsmooth at a
424 acceleration/deceleration 0s 0 to 50s large electronic gear ratio (about 10 times or more)
time constant and low speed.
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.
* When the operation panel (FR-DU07) is used, the maximum setting is 9999. When a parameter unit is used, up to the maximum value within
the setting range can be set.

(1) Calculation of the gear ratio (Pr. 420, Pr. 421)

⋅ The position resolution (travel per pulse Δ [mm]) is determined by the travel per motor revolution Δs [mm] and the
feedback pulses Pf [pulse/rev] of the detector, and is represented by the following expression.
Δ :travel per pulse [mm]
Δs
Δ = Δs: travel per motor rotation [mm]
Pf
Pf: number of feedback pulses [pulse/rev] (number of pulses after multiplying the number of
encoder pulses by four)
Using the parameters, the travel per command pulse can be set separately to set the travel per command pulse
without a fraction.

Δs Pr. 420
Δ = ×
Pf Pr. 421

In addition, the relationship between the motor speed and internal command pulse frequency is as follows:

Pr. 420 No fo : Internal command pulse frequency [pps]

fo × = Pf ×
Pr. 421 60 No : Motor speed [r/min]

CAUTION
Set the electronic gear in the range of 1/50 to 20.
Note that too small a value will decrease the speed command and too large a value will increase the speed ripples.

[Setting example 1]
The electronic gear ratio is Δs = 10 (mm) when the travel per pulse Δ = 0.01 (mm) and the number of feedback
pulses Pf = 4000 (pulse/rev) in a drive system where the ballscrew pitch PB = 10 (mm) and the reduction ratio 1/n = 1.
According to the following expression,
Δs Pr. 420
Δ = ×
Pf Pr. 421
Pr. 420 Pf
= Δ ×
Pr. 421 Δs
4000 4
= 0.01 × =
10 1
Therefore, set "4" in Pr. 420 and "1" in Pr. 421 .

[Setting example 2]
Find the internal command pulse frequency of the dedicated motor rated speed.
Note that the command pulse scaling factor Pr. 420/Pr. 421 = 1.
Assuming that the number of encoder pulses is 2048 (pulses/rev) (feedback pulse Pf = 2048 × 4),
4 No Pr. 421
fo = 2048 × × ×
(multiplication) 60 Pr. 420

= 204800

Therefore, the internal command pulse frequency is 204800 (pps).

122
 Position control by vector control

Relationship between position resolution Δ and overall accuracy

Since overall accuracy (positioning accuracy of machine) is the sum of electrical error and mechanical error, normally
take measures to prevent the electrical system error from affecting the overall error. As a guideline, refer to the
following relationship.
1 1
Δ <( to )× Δε Δε:positioning accuracy
5 10

<Stopping characteristic of motor>

When parameters are used to run the motor, the internal command pulse frequency and motor speed have the
relationship as shown in the chart on page 116, and as the motor speed decreases, pulses are accumulated in the
deviation counter of the inverter. These pulses are called droop pulses (ε) and the relationship between command
frequency (fo) and position loop gain (Kp: Pr. 422) is as represented by the following expression.
fo 204800
ε = [pulse] ε = [pulse] (rated motor speed)
Kp 25

When the initial value of Kp is 25s-1, the droop pulses (ε) are 8192 pulses.

Since the inverter has droop pulses during running, a stop settling time (ts) is needed from when the command has
zeroed until the motor stops. Set the operation pattern in consideration of the stop settling time.
1
ts = 3 × [s]
Kp

When the initial value of Kp is 25s-1, the stop settling time (ts) is 0.12s.
The positioning accuracy Δε is (5 to 10) × Δ = Δε [mm]

(2) Position command acceleration/deceleration time constant (Pr. 424 )

⋅ When the electronic gear ratio is large (about 10 or more times) and the speed is low, rotation will not be smooth,
resulting in pulse-wise rotation. At such a time, set this parameter to smooth the rotation.
⋅ When acceleration/deceleration time cannot be provided for the command pulses, a sudden change in command
pulse frequency may cause an overshoot or error excess alarm. At such a time, set this parameter to provide
acceleration/deceleration time.
Normally set 0.
♦Parameters referred to♦
Pr. 422 Position loop gain Refer to page 124

4.6.5 Setting of positioning adjustment parameter (Pr. 426, Pr. 427) Vector

Parameter
Name Initial Value Setting Range Description
Number
When the number of droop pulses has fallen below
426 In-position width 100 pulses 0 to 32767 pulses *
the setting value, the in-position signal (Y36) turns on.
Excessive position error (E.OD) occurs when the
0 to 400K
427 Excessive level error 40K number of droop pulses exceeds the setting. 4
9999 Function invalid
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.
* When the operation panel (FR-DU07) is used, the maximum setting is 9999. When a parameter unit is used, up to the maximum value within
PARAMETERS

the setting range can be set.

(1) In-position width (Pr. 426 )

The Y36 signal acts as an in-position signal.
When the number of droop pulses has fallen below the setting value, the in-position signal (Y36) turns on.
For the Y36 signal, assign the function by setting "36" (positive logic) or "136" (negative logic) in any of Pr. 190 to Pr.
196 (output terminal function selection) .
(2) Excessive level error (Pr. 427 )
When droop pulses exceed the value set in Pr. 427, excessive position error occurs and displays a fault (E.OD) to
trip the inverter. When you decreased the Pr. 422 Position loop gain setting, increase the error excessive level setting.
Also decrease the setting when you want to detect an error slightly earlier under large load.
When "9999" is set in Pr. 427 , excessive position error (E.OD) does not occur regardless of droop pulses.

123
Position control by vector control

4.6.6 Gain adjustment of position control (Pr. 422, Pr. 423, Pr. 425) Vector

Easy gain tuning is available as an easy tuning method. Refer to page 88 for easy gain tuning.
If it does not produce any effect, make fine adjustment by using the following parameters.
Set "0" in Pr. 819 Easy gain tuning selection before setting the parameters below.

Parameter Setting
Name Initial Value Description
Number Range
422 Position loop gain 25s-1 0 to 150s-1 Set the gain of the position loop.
Function to cancel a delay caused by the droop
423 Position feed forward gain 0% 0 to 100%
pulses of the deviation counter.
Position feed forward Enters the primary delay filter in response to the
425 0s 0 to 5s
command filter feed forward command.
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.

(1) Position loop gain (Pr. 422 )

⋅ Make adjustment when any of such phenomena as unusual vibration, noise and overcurrent of the motor/machine
occurs.
⋅ Increasing the setting improves trackability for the position command and also improves servo rigidity at a stop, but
oppositely makes an overshoot and vibration more liable to occur.
⋅ Normally set this parameter within the range about 5 to 50.
Phenomenon/Condition Adjustment Method
Increase the Pr. 422 value.
Slow response Increase the value 3s-1 by 3s-1 until just before an overshoot, stop-time vibration or
Pr. 422
other instable phenomenon occurs, and set about 0.8 to 0.9 of that value.
Overshoot, stop-time Decrease the Pr. 422 value.
vibration or other instable Decrease the value 3s-1 by 3s-1 until just before an overshoot, stop-time vibration or
Pr. 422
phenomenon occurs. other instable phenomenon does not occur, and set about 0.8 to 0.9 of that value.

(2) Position feed forward gain (Pr. 423 )

⋅ This function is designed to cancel a delay caused by the droop pulses of the deviation counter.
⋅ When a tracking delay for command pulses poses a problem, increase the setting gradually and use this parameter
within the range where an overshoot or vibration will not occur.
⋅ This function has no effects on servo rigidity at a stop.
⋅ Normally set this parameter to 0.

124
 Position control by vector control

(3) Troubleshooting (Position control)

Phenomenon Cause Countermeasures

(1) The phase sequence of the (1) Check the wiring. (Refer to page 33 )
motor or encoder wiring is
wrong.
(2) The control mode selection Pr. (2) Check the Pr. 800 setting. (Refer to page 75 )
800 setting is improper.
(3) The servo on signal or stroke (3) Check that the signals are input normally.
end signal (STF, STR) is not
input.
(4) Command pulse, position pulse (4)-1 Check that the command pulses are input normally.
sign (NP) are not correctly (Check the cumulative command pulse value in Pr.
1 Motor does not rotate. input. 430)
(4)-2 Check the command pulse form and command
pulse selection, Pr. 428, setting.
(4)-3 Check that the position pulse sign (NP) is assigned
to the input terminal. (inverter pulse input)
(5) Pr. 419 Position command source (5) Check the position command source selection in Pr.
selection setting is not correct. 419.
(6) When "0" is set in Pr. 419 (6) Check the position feed amount in Pr. 465 to Pr. 494 .
Position command source
selection, the settings of position
feed amount in Pr. 465 to Pr. 494
are not correct.
(1) The command pulses are not (1)-1 Check the command pulse form and command
input correctly. pulse selection, Pr. 428 setting.
(1)-2 Check that the command pulses are input normally.
(Check the cumulative command pulse value in Pr.
430 )
2 Position shift occurs. (1)-3 Check that the position pulse sign (NP) is assigned
to the input terminal. (inverter pulse input)
(2) The command is affected by (2)-1 Decrease the Pr. 72 PWM frequency selection value.
noise. Or the encoder feedback (2)-2 Change the earthing (grounding) point of shielded
signal is compounded with wire. Or leave the cable suspended.
noise.
(1) The position loop gain is high. (1) Decrease the Pr. 422 value.
3 Motor or machine hunts. (2) The speed gain is high. (2)-1 Perform easy gain tuning.
(2)-2 Decrease Pr. 820 and increase Pr. 821 .
Machine operation is (1) The acceleration/deceleration (1) Decrease Pr. 7 and Pr. 8 .
4
unstable. time setting has adverse effect.

♦Parameters referred to♦

Pr. 7 Acceleration time Refer to page 155
Pr. 8 Deceleration time Refer to page 155
Pr. 72 PWM frequency selection Refer to page 261
Pr. 800 Control method selection Refer to page 75
Pr. 802 Pre-excitation selection Refer to page 185
Pr. 819 Easy gain tuning selection Refer to page 88 4
Pr. 820 Speed control P gain 1 Refer to page 88
Pr. 821 Speed control integral time 1 Refer to page 88
PARAMETERS

125
Position control by vector control

4.6.7 Trouble shooting for when position control is not exercised normally Vector

Position control is not

exercised normally

Have you checked N

the speed control items?

Check the speed

Y control measures.

Position shift occurs. Y

N Have you made N

the electronic gear
setting?
Set the electronic gear.
Y
(Pr. 420, Pr. 421)

The forward (reverse)

rotation stroke end signal has Y
turned off before completion
of positioning.
Do not turn off the forward
(reverse) rotation stroke end
N
signal before completion of
positioning.

Motor or machine is Y
hunting.

N
The position loop gain N
(Pr. 422) is high.

Y
Perform easy gain tuning.
The speed control gain is high.
Decrease Decrease the speed control
the position loop gain proportional gain (Pr. 820).
(Pr. 422). Increase the speed control
integral time (Pr. 821).
Machine operation is Y
unstable.
Insufficient torque.
N Increase the excitation
ratio (Pr. 854).

Please contact your sales

representative.

REMARKS
The speed command of position control relates to speed control. (Refer to page 81 )

126
 Adjustment of Real sensorless vector
control, vector control

4.7 Adjustment of Real sensorless vector control, vector control

Purpose Parameter that should be Set Refer to Page
Speed detection filter
Stabilize speed and feedback signal Pr. 823, Pr. 827, Pr. 833, Pr. 837 127
Torque detection filter
Change the excitation ratio Excitation ratio Pr. 854 128

4.7.1 Speed detection filter and torque detection filter (Pr. 823, Pr. 827, Pr. 833, Pr.
837) Sensorless Vector

Set the time constant of the primary delay filter relative to the speed feedback signal and torque feedback signal.
Since this function reduces the speed loop response, use it with the initial value.

Parameter
Name Initial Value Setting Range Description
Number
0 Without filter
823 *1 Speed detection filter 1 0.001s Set the time constant of the primary delay filter
0.001 to 0.1s
relative to the speed feedback signal.
0 Without filter
827 Torque detection filter 1 0s Set the time constant of the primary delay filter
0.001 to 0.1s
relative to the torque feedback signal.
Second function of Pr. 823 (valid when RT signal is
0 to 0.1s
833 *1 Speed detection filter 2 9999 on)
9999 Same as the Pr. 823 setting
Second function of Pr. 827 (valid when RT signal is
0 to 0.1s
837 Torque detection filter 2 9999 on)
9999 Same as the Pr. 827 setting
*1 This parameter can be set when the FR-A7AP/FR-A7AL (option) is mounted.

(1) Stabilize speed detection (Pr. 823, Pr. 833 )

⋅ Since the current loop response reduces, use it with the initial value.
Increase the setting value gradually and adjust the value to stabilize the speed when speed ripples occur due to
harmonic disturbance, etc. A too large value will run the motor unstably.
⋅ Pr. 823 and Pr. 833 are valid only during vector control

(2) Stabilize speed detection (Pr. 827, Pr. 837 )

⋅ Since the current loop response reduces, use it with the initial value.
Increase the setting value gradually and adjust the value to stabilize the speed when torque ripples occur due to
harmonic disturbance, etc. A too large value will run the motor unstably.

(3) Use multiple primary delay filters.

⋅ Use Pr. 833 and Pr. 837 to change the filter according to applications. Pr. 833 and Pr. 837 are valid when the RT
signal is ON. 4
REMARKS
⋅ The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 211.)
PARAMETERS

⋅ The RT signal is assigned to the RT terminal in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection) , you can assign the RT signal to the other terminal.

127
Adjustment of Real sensorless vector
control, vector control

4.7.2 Excitation ratio (Pr. 854) Sensorless Vector

Decrease the excitation ratio when you want to improve efficiency under light load. (Motor magnetic noise
decreases.)

Parameter
Name Initial Value Setting Range Description
Number
854 Excitation ratio 100% 0 to 100% Set the excitation ratio under no load.

⋅ Note that the rise of output torque becomes slow if

excitation ratio is decreased. Excitation
ratio [%]
This function is appropriate for applications as machine
tools which repeat rapid acceleration/deceleration up to 100
(initial value)
high speed.
Pr. 854
set value

0 100 Load [%]

REMARKS
⋅ When "1" (magnetic flux with terminal) is set in Pr. 858 Terminal 4 function assignment or Pr. 868 Terminal 1 function assignment, the
Pr. 854 setting is invalid.

128
 Adjust the output torque (current) of the motor

4.8 Adjust the output torque (current) of the motor

Purpose Parameter that must be Set Refer to Page
Set starting torque manually Manual torque boost Pr. 0, Pr. 46, Pr. 112 129
Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450,
Automatically control output current Advanced magnetic flux
Pr. 451, Pr. 453, Pr. 454, 131
according to load vector control
Pr. 569, Pr. 800
Compensate for motor slip to secure
Slip compensation Pr. 245 to Pr. 247 134
low-speed torque
Limit output current to prevent inverter Pr. 22, Pr. 23, Pr. 66,
Stall prevention operation 135
trip Pr. 154, Pr. 156, Pr. 157

4.8.1 Manual torque boost (Pr. 0, Pr. 46, Pr. 112) V/F

You can compensate for a voltage drop in the low-frequency range to improve motor torque reduction in the low-
speed range.
Motor torque in the low-frequency range can be adjusted to the load to increase the starting motor torque.
Three types of starting torque boost can be changed by switching terminals.

Parameter
Name Initial Value Setting Range Description
Number
7.5K or lower 3%
0 Torque boost 0 to 30% Set the output voltage at 0Hz as %.
11K or higher 2%
Set the torque boost value when the
0 to 30%
46 Second torque boost 9999 RT signal is ON.
9999 Without second torque boost
Set the torque boost value when the
0 to 30%
112 Third torque boost 9999 X9 signal is ON.
9999 Without third torque boost

(1) Starting torque adjustment

⋅ On the assumption that Pr. 19 Base frequency voltage is 100%, set the output voltage at 0Hz in % in Pr. 0 (Pr. 46, Pr. 112).
⋅ Adjust the parameter little by little (about 0.5%), and check the motor status each time. If the setting is too large, the
motor will overheat. The guideline is about 10% at the greatest.
100%

Output
voltage

Pr.0 Setting
Pr.46
Pr.112 range
0 Output Base
frequency frequency
(Hz)

4
PARAMETERS

129
Adjust the output torque (current) of the motor

(2) Set multiple torque boost (RT signal, X9 signal, Pr. 46, Pr. 112)
⋅ Use the second (third) torque boost when changing the torque boost according to application or when using
multiple motors by switching between them by one inverter.
⋅ Pr. 46 Second torque boost is valid when the RT signal turns ON.
⋅ Pr. 112 Third torque boost is valid when the X9 signal is ON. For the terminal used for X9 signal input, set "9" in any
of Pr. 178 to Pr. 189 (input terminal function selection) to assign the X9 signal function.

REMARKS
⋅ The RT(X9) signal acts as the second (third) function selection signal and makes the other second (third) functions valid.
(Refer to page 211)
⋅ The RT signal is assigned to the RT terminal in the default setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.

CAUTION
⋅ Increase the setting when the distance between the inverter and motor is long or when motor torque is insufficient in the low-
speed range. If the setting is too large, an overcurrent trip may occur.
⋅ The Pr. 0, Pr. 46, Pr. 112 settings are valid only when V/F control is selected.
⋅ When using the inverter dedicated motor (constant torque motor) with the 5.5K or 7.5K, set the torque boost value to 2%. If the
initial set Pr. 71 value is changed to the setting for use with a constant-torque motor, the Pr. 0 setting changes to the
corresponding value in above.
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 3 Base frequency, Pr. 19 Base frequency voltage Refer to page 142
Pr. 71 Applied motor Refer to page 169
Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 207

130
 Adjust the output torque (current) of the motor

4.8.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450,
Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800) Magnetic flux
Advanced magnetic flux vector control can be selected by setting the capacity, number and type of motor to be
used in Pr. 80 and Pr. 81.
What is Advanced magnetic flux vector control?
The low speed torque can be improved by providing voltage compensation to flow a motor current which meets
the load torque. Output frequency compensation (slip compensation) is made so that the motor actual speed
approximates a speed command value. Effective when load fluctuates drastically, etc.

Parameter Initial
Name Setting Range Description
Number Value
0 to 8, 13 to 18, By selecting a standard motor or constant-
71 Applied motor 0 30, 33, 34, 40, 43, 44, 50, torque motor, thermal characteristic and motor
53, 54 constants of each motor are set.
0.4 to 55kW Set the applied motor capacity.
80 Motor capacity 9999
9999 V/F control
2, 4, 6, 8, 10 Set the number of motor poles.
Set 10 + number
81 Number of motor poles 9999 12, 14, 16, 18, 20 X18 signal-ON:V/F control *
of motor poles.
9999 V/F control
Motor speed fluctuation due to load fluctuation
is adjusted during Advanced magnetic flux
Speed control gain 0 to 200%
89 9999 vector control.
(magnetic flux vector) 100% is a referenced value.
9999 Gain matching with the motor set in Pr. 71.
0 to 8, 13 to 18,
Set when using the second motor.
30, 33, 34, 40, 43, 44, 50,
450 Second applied motor 9999 (same specifications as Pr. 71 )
53, 54
9999 Function invalid (Pr. 71 is valid)
10, 11, 12 Real sensorless vector control
Second motor control
451 method selection
9999 V/F control (Advanced magnetic flux vector
20, 9999
control)
0.4 to 55kW Set the capacity of the second motor.
453 Second motor capacity 9999
9999 V/F control
Number of second motor 2, 4, 6, 8, 10 Set the number of poles of the second motor.
454 poles
9999
9999 V/F control
Second motor speed fluctuation due to load
fluctuation is adjusted during Advanced
Second motor speed 0 to 200%
569 9999 magnetic flux vector control.
control gain 100% is a referenced value.
9999 Gain matching with the motor set in Pr. 450.
0 to 5 Vector control
9 Vector control test operation
800 Control method selection 20 10, 11, 12 Real sensorless vector control
V/F control (Advanced magnetic flux vector
20
control)
* Use Pr. 178 to Pr. 189 to assign the terminals used for the X18 and MC signal. (Refer to page 207 )
4
POINT
If the following conditions are not satisfied, select V/F control since malfunction such as insufficient torque and
PARAMETERS

uneven rotation may occur.

• The motor capacity should be equal to or one rank lower than the inverter capacity.
• Motor to be used is any of Mitsubishi standard motor (SF-JR 3.7kW or higher), high efficiency motor (SF-HR
3.7kW or higher) or Mitsubishi constant torque motor (SF-JRCA 4P, SF-HRCA 3.7kW or higher). When using a
motor other than the above (other manufacturer's motor, etc.), perform offline auto tuning without fail.
• Single-motor operation (one motor run by one inverter) should be performed.
• The wiring length from inverter to motor should be within 30m. (Perform offline auto tuning in the state where
wiring work is performed when the wiring length exceeds 30m.)

131
Adjust the output torque (current) of the motor

(1) Selection method of Advanced magnetic flux vector control

Perform secure wiring.
(Refer to page 14)

Set the motor. (Pr. 71)

Motor Pr. 71 Setting *1 REMARKS
SF-JR 0 (initial value)
Mitsubishi standard motor
SF-HR 40
Mitsubishi high efficiency motor
Others 3 Offline auto tuning is necessary. *2
SF-JRCA 4P 1
Mitsubishi constant-torque
SF-HRCA 50
motor
Others (SF-JRC, etc.) 13 Offline auto tuning is necessary. *2
Other manufacturer's standard
⎯ 3 Offline auto tuning is necessary. *2
motor
Other manufacturer's constant-
⎯ 13 Offline auto tuning is necessary. *2
torque motor
*1 For other settings of Pr. 71 , refer to page 169.
*2 Refer to page 171 for offline auto tuning.

Set the motor capacity and the number of motor poles.

(Pr. 80, Pr. 81) (Refer to page 75)
Set motor capacity (kW) in Pr. 80 Motor capacity and the number
of motor poles (number of poles) in Pr. 81 Number of motor poles.
(V/F control is performed when the setting is "9999" (initial value).)
Set the operation command. (Refer to page 290)
Select the start command and speed command.
(1) Start command
1. Operation panel :

Setting by pressing / of the operation panel

2. External command : Setting by forward rotation or reverse
rotation command (terminal STF or STR)
(2) Speed command
1. Operation panel :

Setting by of the operation panel

2. External analog command (terminal 2 or 4) :
Give a speed command using the analog signal input to
terminal 2 (or terminal 4).
3. Multi-speed command :
The external signals (RH, RM, RL) may also be used to give
speed command.

Test run

As required
· Perform offline auto tuning. (Pr. 96) (refer to page 171)
· Select online auto tuning. (Pr. 95) (refer to page 181)

REMARKS
· When higher accuracy operation is necessary, set online auto tuning after performing offline auto tuning and select Real
sensorless vector control.

CAUTION
· Uneven rotation slightly increases as compared to the V/F control. (It is not suitable for machines such as grinding machine and
wrapping machine which requires less uneven rotation at low speed.)
· When a surge voltage suppression filter (FR-ASF-H) is connected between the inverter and motor, output torque may decrease.
· Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

132
 Adjust the output torque (current) of the motor

(2) Adjust the motor speed fluctuation at load fluctuation (speed control gain)
The motor speed fluctuation at load fluctuation can be adjusted using Pr. 89.
(It is useful when the speed command does not match the motor speed after
the FR-A201 series inverter is replaced with the FR-A701 series inverter,

Load torque
etc.)

Speed

(3) Advanced magnetic flux vector control is performed with two motors
• Turning the RT signal ON allows the second motor to be controlled.
• Set the second motor in Pr. 450 Second applied motor. (Initial setting is "9999" (without second applied motor). Refer
to page 169.)
Function RT signal ON (second motor) RT signal OFF (first motor)
Applied motor Pr. 450 Pr. 71
Motor capacity Pr. 453 Pr. 80
Number of motor
Pr. 454 Pr. 81
poles
Speed control gain Pr. 569 Pr. 89
Control method
Pr. 451 Pr. 800
selection

REMARKS
• The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 211)
The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), the RT signal can be assigned to the other terminal.
CAUTION
• Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦Parameters referred to♦

Pr. 71, Pr. 450 Applied motor Refer to page 169
Pr. 800, Pr. 451 Control method selection Refer to page 75

4
PARAMETERS

133
Adjust the output torque (current) of the motor

4.8.3 Slip compensation (Pr. 245 to Pr. 247) V/F

The inverter output current may be used to assume motor slip to keep the motor speed constant.

Parameter
Name Initial Value Setting Range Description
Number
0.01 to 50% Used to set the rated motor slip.
245 Rated slip 9999
0, 9999 No slip compensation
Used to set the slip compensation response
time. When the value is made smaller,
Slip compensation time
246 0.5s 0.01 to 10s response will be faster. However, as load
constant
inertia is greater, a regenerative overvoltage
fault (E.OV ) is more liable to occur.
Slip compensation is not made in the
0 constant power range (frequency range
Constant-power range slip
247 9999 above the frequency set in Pr. 3)
compensation selection
Slip compensation is made in the constant
9999
power range.

⋅ Slip compensation is validated when the motor rated slip calculated by the following formula is set in Pr. 245. Slip
compensation is not made when Pr. 245 = "0" or "9999".
Synchronous speed at base frequency - rated speed
Rated slip = × 100[%]
Synchronous speed at base frequency
REMARKS
When performing slip compensation, the output frequency may become greater than the set frequency. Set the Pr. 1 Maximum
frequency value a little higher than the set frequency.

♦ Parameters referred to ♦
Pr. 1 Maximum frequency Refer to page 140
Pr. 3 Base frequency Refer to page 142

134
 Adjust the output torque (current) of the motor

4.8.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 49, Pr. 66, Pr. 114, Pr. 115,
Pr. 148, Pr. 149, Pr. 154, Pr. 156, Pr. 157, Pr. 858, Pr. 868) V/F Magnetic flux
This function monitors the output current and automatically changes the output frequency to prevent the inverter
from coming to trip due to overcurrent, overvoltage, etc. It can also limit stall prevention and fast response
current limit operation during acceleration/deceleration, driving or regeneration. Invalid under Real sensorless
vector control or vector control.
Stall prevention
If the output current exceeds the stall prevention operation level, the output frequency of the inverter is
automatically varied to reduce the output current.
Also the second stall prevention function can restrict the output frequency range in which the stall prevention
function is valid. (Pr. 49)
Fast response current limit
If the current exceeds the limit value, the output of the inverter is shut off to prevent an overcurrent.
Parameter Setting
Name Initial Value Description
Number Range
0 Stall prevention operation selection becomes invalid.
Stall prevention operation
22* 150% Set the current value at which stall prevention
level 0.1 to 400%
operation will be started.
Stall prevention operation The stall operation level can be reduced when
0 to 200%
23 level compensation factor 9999 operating at a high speed above the rated frequency.
at double speed 9999 Constant according to Pr. 22
0 Second stall prevention operation invalid
Second stall prevention
48 150% The second stall prevention operation level can be
operation current 0.1 to 220%
set.
0 Second stall prevention operation invalid
Second stall prevention Set the frequency at which stall prevention operation
49 0Hz 0.01 to 400Hz
operation frequency of Pr. 48 is started.
9999 Pr. 48 is valid when the RT signal is on.
Stall prevention operation Set the frequency at which the stall operation level is
66 60Hz 0 to 400Hz
reduction starting frequency started to reduce.
0 Third stall prevention operation invalid
Third stall prevention
114 150% Stall prevention operation level can be changed with
operation current 0.1 to 220%
the X9 signal.
0 Third stall prevention operation invalid
Third stall prevention
115 0Hz Set the frequency at which stall prevention operation
operation frequency 0.01 to 400Hz
when the X9 signal is on starts.
Stall prevention level at 0V
148 150% 0 to 220%
input Stall prevention operation level can be changed by
Stall prevention level at the analog signal input to terminal 1 (terminal 4).
149 200% 0 to 220%
10V input
With voltage You can select whether to use
Voltage reduction 0
reduction output voltage reduction
154 selection during stall 1
Without voltage during stall prevention
prevention operation 1
reduction operation or not.
You can select whether stall prevention operation and
Stall prevention operation 0 to 31,
156 0 fast response current limit operation will be performed
selection 100, 101
or not.
Set the output start time of the OL signal output when
0 to 25s
157 OL signal output timer 0s stall prevention is activated.
9999 Without the OL signal output
Terminal 4 function By setting "4", the stall prevention operation level can
858 0 0, 1, 4, 9999
assignment be changed with a signal to terminal 4.
Terminal 1 function By setting "4", the stall prevention operation level can
868
assignment
0 0 to 6, 9999
be changed with a signal to terminal 1. 4
* This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write
selection.
PARAMETERS

Output current
(1) Setting of stall prevention operation level (Pr. 22)
Pr. 22 ⋅ Set in Pr. 22 the ratio of the output current to the rated inverter current at
which stall prevention operation will be performed. Normally set 150%
Output frequency
(initial value).
⋅ Stall prevention operation stops acceleration (makes deceleration) during
ion

De
at

ce
ler

Constant
acceleration, makes deceleration during constant speed, and stops
ler
ce

speed
at
Ac

ion

Time deceleration during deceleration.

OL
Stall prevention operation example ⋅ When stall prevention operation is performed, the OL signal is output.
CAUTION
⋅ If an overload status lasts long, an inverter trip (e.g. electronic thermal relay function (E.THM)) may occur.
⋅ When Pr. 156 has been set to activate the fast response current limit (initial setting), the Pr. 22 setting should not be higher than
170%. The torque will not be developed by doing so.
⋅ When Real sensorless vector control or vector control is selected using Pr. 800 Control method selection, Pr.22 serves as torque limit
level.

135
Adjust the output torque (current) of the motor

(2) Stall prevention operation signal output and output timing adjustment (OL signal, Pr. 157)
⋅ When the output power exceeds the stall prevention operation level and stall prevention is activated, the stall
prevention operation signal (OL signal) turns on for longer than 100ms. When the output power falls to or below the
stall prevention operation level, the output signal turns off.
⋅ Use Pr. 157 OL signal output timer to set whether the OL signal is output immediately or after a preset period of time.
⋅ This operation is also performed when the regeneration avoidance function (overvoltage stall) is executed.
Pr. 157 Setting Description
Overload state
0
Output immediately (OL operation)
(initial value)
0.1 to 25 Output after the set time (s) has elapsed OL output signal
9999 Not output
Pr.157 Set time(s)

REMARKS
⋅ The OL signal is assigned to the terminal OL in the initial setting. The OL signal can also be assigned to the other terminal by
setting "3 (positive logic) or 103 (negative logic)" to any of Pr. 190 to Pr. 196 (output terminal function selection).

CAUTION
· If the frequency has fallen to 0.5Hz by stall prevention operation and remains for 3s, a fault (E.OLT) appears to trip the inverter
output.
· Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

(3) Setting of stall prevention operation in high frequency range (Pr. 22, Pr. 23, Pr. 66)

Setting example (Pr. 22 = 150%, Pr. 23 = 100%, Pr. 66 = 60Hz)

Pr. 22
Stall prevention operation level (%)

When Pr. 23 = 9999 150

Stall prevention operation

When Pr. 23 = "9999", the stall prevention

operation level is as set in Pr. 22 to 400Hz. 90

60
45
level (%)

30
Stall prevention operation level 22.5
as set in Pr. 23
0 60 100 200 300 400
Pr. 66 400Hz Output frequency (Hz)
Output frequency (Hz)

⋅ During high-speed operation above the rated motor frequency, acceleration may not be made because the motor
current does not increase. If operation is performed in a high frequency range, the current at motor lockup
becomes smaller than the rated output current of the inverter, and the protective function (OL) is not executed if the
motor is at a stop.
To improve the operating characteristics of the motor in this case, the stall prevention level can be reduced in the
high frequency range. This function is effective for performing operation up to the high-speed range on a centrifugal
separator, etc. Normally, set 60Hz in Pr. 66 and 100% in Pr. 23.
⋅ Formula for stall prevention operation level
Stall prevention operation level in Pr. 22 - A Pr. 23 - 100
= A+B × [ ]×[ ]
high frequency range (%) Pr. 22 - B 100
Pr. 66(Hz) × Pr. 22(%) Pr. 66(Hz) × Pr. 22(%)
However, A = , B =
Output frequency (H) 400Hz
⋅ When Pr. 23 Stall prevention operation level compensation factor at double speed = "9999" (initial value), the stall
prevention operation level is kept constant at the Pr. 22 setting up to 400Hz.

136
 Adjust the output torque (current) of the motor

(4) Set multiple stall prevention operation levels (Pr. 48, Pr. 49, Pr. 114, Pr. 115)
⋅ Setting "9999" in Pr. 49 Second stall prevention operation frequency and turning the RT signal on make Pr. 48 Second stall
prevention operation current valid.
⋅ In Pr. 48 (Pr. 114), you can set the stall prevention operation level at the output frequency from 0Hz to that set in Pr. 49
(Pr. 115).
During acceleration, however, the operation level is as set in Pr. 22.
⋅ This function can also be used for stop-on-contact or similar operation by decreasing the Pr. 48 (Pr. 114) setting to
weaken the deceleration torque (stopping torque).
⋅ Pr. 114 and Pr. 115 are valid when the X9 signal is ON. For the terminal used for X9 signal input, set "9" in any of Pr.
178 to Pr. 189 input terminal function selection to assign the X9 signal function.

Pr. 49 Pr. 115

Operation
Setting Setting
operation current
Stall prevention

0 The second (third) stall prevention operation is not

During acceleration (initial value) performed.
The second (third) stall prevention operation is
0.01Hz to 400Hz
performed according to the frequency.*1
Setting The second (third) stall prevention function is
Pr. 48 During deceleration/constant speed can not performed according to the RT signal.
9999 *2
Pr. 114
be RT signal ON ... Stall level Pr. 48
Pr. 49 Running frequency made. RT signal OFF ... Stall level Pr. 22
Pr. 115 *1 The smaller setting of the stall prevention operation levels set in Pr. 22 and Pr. 48
has a higher priority.
*2 When Pr. 868 = "4" (Stall prevention operation level analog input), the stall
prevention operation level also switches from the analog input (terminal 1 input)
to the stall prevention operation level of Pr. 48 when the RT signal turns ON.
(The second stall prevention operation level cannot be input in an analog form.)

Set frequency exceeds Pr. 49 (Pr. 115) Set frequency is Pr. 49 (Pr. 115) or less

Output Output
frequency (Hz) Output frequency (Hz)
frequency
Set Pr. 49 Output
frequency frequency
(Pr. 115)
Pr. 49
Set
(Pr. 115) frequency
Stall Time Time
prevention
level Pr. 22
used Pr. 22 Pr. 48
Pr. 48
(Pr.114) used (Pr. 114)
used used

REMARKS
⋅ When Pr. 49 ≠ "9999" (level changed according to frequency) and Pr. 48 = "0%", the stall prevention operation level is 0% at or
higher than the frequency set in Pr. 49.
⋅ In the initial setting, the RT signal is assigned to the RT terminal. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal
function selection), you can assign the RT signal to the other terminal. 4
CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
PARAMETERS

parameters after confirming the function of each terminal.

⋅ The RT(X9) signal acts as the second (third) function selection signal and makes the other second (third) functions valid. (Refer
to page 211)

137
Adjust the output torque (current) of the motor

(5) Stall prevention operation level setting by terminal 1 (terminal 4) (analog variable) (Pr. 148,
Pr. 149, Pr. 858, Pr. 868)
⋅ To set the stall prevention operation level using
Current limit level (%) Set the current limit level at 10V/5V input terminal 1 (analog input), set Pr. 868 Terminal 1
power (input current 20mA) using Pr. 149. function assignment to "4".
200% ⋅ Input 0 to 5V (or 0 to 10V) to terminal 1. Select 5V or
Initial setting
150% 10V using Pr. 73 Analog input selection. When Pr. 73 =
"1" (initial value), 0 to ±10V is input.
100%
⋅ To set stall prevention operation level using terminal
50%
4 (analog current input), set "4" in Pr. 858 Terminal 4
Input voltage (V) function assignment.
(-5V/10VDC) 0V (5V/10VDC) Input current (mA) Input 0 to 20mA to terminal 4. The AU signal need
0mA (20mA)
not be turned on.
Set the current limit level at 0V input ⋅ Set the current limit level at the input voltage of 0V
voltage (input current 0mA) using Pr. 148.
(0mA) in Pr. 148 Stall prevention level at 0V input
⋅ Set the current limit level at the input voltage of 10V/
5V (20mA) in Pr. 149 Stall prevention level at 10V input.

V/F, Advanced Magnetic Flux Vector Control

Pr. 858 Setting Pr. 868 Setting
Terminal 4 function Terminal 1 function
0
Frequency auxiliary
(initial value)
1 Magnetic flux command
2 ⎯
0 Frequency command
3 ⎯
(initial value) (AU signal-ON)
4 *1 Stall prevention
5 ⎯
6 Torque bias
9999 ⎯
0
Magnetic flux command ⎯
(initial value)
1 ⎯ Magnetic flux command
2 ⎯
1 3 ⎯
4 *1 Stall prevention
Magnetic flux command
5 ⎯
6 Torque bias
9999 ⎯
0
Frequency auxiliary
(initial value)
Stall prevention
1 Magnetic flux command
2 ⎯
4 *2 3 ⎯ ⎯
4 *1 ⎯ *3 Stall prevention
5 ⎯
6 Stall prevention Torque bias
9999 ⎯
9999 ⎯ ⎯ ⎯
*1 When Pr. 868 = "4" (analog stall prevention), other functions of terminal 1 (auxiliary input, override function, PID control) do not function.
*2 When Pr. 858 = "4" (analog stall prevention), PID control and speed command from terminal 4 do not function even if the AU signal turns ON.
*3 When "4" (stall prevention) is set in both Pr. 858 and Pr. 868, function of terminal 1 has higher priority and terminal 4 has no function.
REMARKS
⋅ The fast response current limit level cannot be set.

(6) To further prevent an alarm stop (Pr. 154)

⋅ When Pr. 154 is set to "0", the output voltage reduces during stall prevention operation. By making setting to reduce
the output voltage, an overcurrent trip can further become difficult to occur.
⋅ Use this function where a torque decrease will not pose a problem.
Pr. 154 Setting Description
0 Output voltage reduced
1
Output voltage not reduced
(initial value)

138
 Adjust the output torque (current) of the motor

(7) Limit the stall prevention operation and fast response current limit operation according to
the operating status (Pr. 156)
⋅ Refer to the following table and select whether stall prevention and fast-response current limit operation will be
performed or not and the operation to be performed at OL signal output.
Stall Prevention Stall Prevention
Operation Selection OL Signal Operation Selection OL Signal
Fast Response :Activated Output Fast Response :Activated Output
Current Limit :Not activated :Operation Current Limit :Not activated :Operation
Pr. 156 Pr. 156
continued continued
Setting : Activated Setting :Activated
Acceleration

Deceleration

Acceleration

Deceleration
Constant

Constant
:Operation :Operation
speed

speed
: Not activated : Not activated
not continued not continued
*1 *1

0
(initial 16
value)
1 17
2 18
3 19
4 20
5 21
6 22
7 23
8 24
9 25
10 26
11 27
12 28
13 29
14 30
15 ⎯ *2 31 ⎯ *2
Regeneration Driving
Regeneration Driving

100 101
*3 *3
⎯ *2 ⎯ *2

*1 When "Operation not continued for OL signal output" is selected, the " " fault (stopped by stall prevention) is displayed and operation
stopped.
*2 Since both fast response current limit and stall prevention are not activated, OL signal and E.OLT are not output.
*3 The settings "100" and "101" allow operations to be performed in the driving and regeneration modes, respectively. The setting "101" disables the
fast response current limit in the driving mode.
CAUTION
⋅ When the load is heavy, or when the acceleration/deceleration time is short, stall prevention is activated and acceleration/
deceleration may not be made according to the preset acceleration/deceleration time. Set Pr. 156 and stall prevention operation
level to the optimum values.
⋅ In vertical lift applications, make setting so that the fast response current limit is not activated. Torque may not be produced,
causing a drop due to gravity.

4
CAUTION
Do not set a small value as the stall prevention operation current.
PARAMETERS

Otherwise, torque generated will reduce.

Always perform test operation.
Stall prevention operation during acceleration may increase the acceleration time.
Stall prevention operation performed during constant speed may cause sudden speed changes.
Stall prevention operation during deceleration may increase the deceleration time, increasing the deceleration
distance.
♦ Parameters referred to ♦
⋅ Pr. 22 Torque limit level Refer to page 83
⋅ Pr. 73 Analog input selection Refer to page 263
⋅ Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 207
⋅ Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
⋅ Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment Refer to page 262

139
Limiting the output frequency

4.9 Limiting the output frequency

Purpose Parameter that must be Set Refer to Page
Set upper limit and lower limit of Maximum/minimum
Pr. 1, Pr. 2, Pr. 18 140
output frequency frequency
Perform operation by avoiding
Frequency jump Pr. 31 to Pr. 36 141
mechanical resonance points

4.9.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)

You can limit the motor speed. Clamp the upper and lower limits of the output frequency.

Parameter
Name Initial Value Setting Range Description
Number
1 Maximum frequency 120Hz 0 to 120Hz Set the upper limit of the output frequency.
2 Minimum frequency 0Hz 0 to 120Hz Set the lower limit of the output frequency.
High speed maximum
18 120Hz 120 to 400Hz Set when performing the operation at 120Hz or more.
frequency

(1) Set maximum frequency

Clamped at the
Output frequency maximum frequency ⋅ Set the upper limit of the output frequency in Pr. 1 Maximum
(Hz) frequency. If the value of the frequency command entered is
higher than the setting, the output frequency is clamped at the
Pr.1 maximum frequency.
Pr.18 ⋅ When you want to perform operation above 120Hz, set the upper
Frequency setting
limit of the output frequency to Pr. 18 High speed maximum
Pr.2
frequency. (When Pr. 18 is set, Pr. 1 automatically switches to the
0 5, 10V
frequency of Pr. 18. When Pr. 18 is set, Pr. 18 automatically
Clamped at the (4mA) (20mA)
minimum frequency switches to the frequency of Pr. 1.)

REMARKS
⋅ When performing operation above 60Hz using the frequency setting analog signal, change Pr. 125 (Pr. 126) (frequency setting
gain). If only Pr. 1 or Pr. 18 is changed, operation above 60Hz cannot be performed.

(2) Set minimum frequency

⋅ Use Pr. 2 Minimum frequency to set the lower limit of the output frequency.
⋅ The output frequency is clamped by the Pr. 2 setting even if the set frequency is equal to or less than the Pr. 2 setting
(The frequency will not decrease to the Pr. 2 setting.)
REMARKS
⋅ When Pr. 15 Jog frequency is equal to or less than Pr. 2, the Pr. 15 setting has precedence over the Pr. 2 setting.
⋅ When stall prevention is activated to decrease the output frequency, the output frequency may drop to Pr. 2 or below.

CAUTION
Note that when Pr. 2 is set to any value equal to or more than Pr. 13 Starting frequency, simply turning ON the
start signal will run the motor at the preset frequency according to the set acceleration time even if the
command frequency is not input.

♦ Parameters referred to ♦
Pr. 13 Starting frequency Refer to page 157
Pr. 15 Jog frequency Refer to page 150
Pr. 125 Terminal 2 frequency setting gain frequency, Pr. 126 Terminal 4 frequency setting gain frequency Refer to page 271

140
 Limiting the output frequency

4.9.2 Avoiding mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36)

When it is desired to avoid resonance attributable to the natural frequency of a mechanical system, these
parameters allow resonant frequencies to be jumped.

Parameter
Name Initial Value Setting Range Description
Number
31 Frequency jump 1A 9999 0 to 400Hz, 9999
32 Frequency jump 1B 9999 0 to 400Hz, 9999
1A to 1B, 2A to 2B, 3A to 3B is
33 Frequency jump 2A 9999 0 to 400Hz, 9999
frequency jumps
34 Frequency jump 2B 9999 0 to 400Hz, 9999 9999: Function invalid
35 Frequency jump 3A 9999 0 to 400Hz, 9999
36 Frequency jump 3B 9999 0 to 400Hz, 9999

⋅ Up to three areas may be set, with the jump frequencies set

Frequency jump
to either the top or bottom point of each area.
Pr.36
Set frequency (Hz)

Pr.35 ⋅ The settings of frequency jumps 1A, 2A, 3A are jump points,
and operation is performed at these frequencies in the jump
Pr.34 areas.
Pr.33

Pr.32
Pr.31

Example 1 To fix the frequency to 30Hz in the range 30Hz to 35Hz, set 35Hz in Pr. 34
Pr.34:35Hz
and 30Hz in Pr. 33.
Pr.33:30Hz

Example 2 To jump the frequency to 35Hz in the range 30Hz to 35Hz, set 35Hz in Pr.
Pr.33:35Hz
33 and 30Hz in Pr. 34.
Pr.34:30Hz

CAUTION
⋅ During acceleration/deceleration, the running frequency within the set area is valid.

4
PARAMETERS

141
V/F pattern

4.10 V/F pattern

Purpose Parameter that must be Set Refer to Page
Base frequency, base
Set motor ratings Pr. 3, Pr. 19, Pr. 47, Pr. 113 142
frequency voltage
Select a V/F pattern according to
Load pattern selection Pr. 14 144
applications
Automatically set a V/F pattern for Elevator mode (automatic
Pr. 61, Pr. 64, Pr. 292 146
elevators acceleration/deceleration)
Use special motor Adjustable 5 points V/F Pr. 71, Pr. 100 to Pr. 109 147

4.10.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47, Pr. 113) V/F

Used to adjust the inverter outputs (voltage, frequency) to the motor rating.

Parameter
Name Initial Value Setting Range Description
Number
Set the frequency when the motor
3 Base frequency 60Hz 0 to 400Hz
rated torque is generated. (50Hz/60Hz)
0 to 1000V Set the base voltage.
19 Base frequency voltage 9999 8888 95% of power supply voltage
9999 Same as power supply voltage
Set the base frequency when the RT
0 to 400Hz
47 Second V/F (base frequency) 9999 signal is ON.
9999 Second V/F invalid
Set the base frequency when the X9
0 to 400Hz
113 Third V/F (base frequency) 9999 signal is ON.
9999 Third V/F is invalid

(1) Setting of base frequency (Pr. 3)

⋅ When operating a standard motor, generally set the rated
frequency of the motor to Pr. 3 Base frequency. When running
Output voltage (V)

the motor using bypass operation, set Pr. 3 to the same value
as the power supply frequency.
⋅ If the frequency given on the motor rating plate is "50Hz" only,
Pr. 19
always set to "50Hz". Leaving the base frequency unchanged
Output frequency
(Hz)
from "60Hz" may make the voltage too low and the torque
Pr. 3 insufficient. It may result in an inverter trip due to overload.
Pr. 47 Special care must be taken when "1" (reduced torque load) is
Pr. 113 set in Pr. 14 Load pattern selection.
⋅ When using the Mitsubishi constant-torque motor, set Pr. 3 to
60Hz.
(2) Set multiple base frequencies (Pr. 47, Pr. 113)
⋅ When you want to change the base frequency when switching two motors with one inverter, use the Pr. 47 Second V/F
(base frequency).
⋅ Pr. 47 Second V/F (base frequency) is valid when the RT signal is ON, and Pr. 113 Third V/F (base frequency) is valid when
the X9 signal is ON. Assign the terminal for X9 signal input using any of Pr. 178 to Pr. 189 (input terminal function
selection).
REMARKS
⋅ The RT(X9) signal acts as the second (third) function selection signal and makes the other second (third) functions valid. (Refer
to page 211)
⋅ In the initial setting, the RT signal is assigned to the RT terminal. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.

142
 V/F pattern

(3) Base frequency voltage setting (Pr. 19)

⋅ Use Pr. 19 Base frequency voltage to set the base voltage (e.g. rated motor voltage).
⋅ If the setting is less than the power supply voltage, the maximum output voltage of the inverter is as set in Pr. 19.
⋅ Pr. 19 can be utilized in the following cases.
(a) When regeneration frequency is high (e.g. continuous regeneration)
During regeneration, the output voltage becomes higher than the reference and may cause an overcurrent trip
(E.OC ) due to an increased motor current.
(b) When power supply voltage variation is large
When the power supply voltage exceeds the rated voltage of the motor, speed variation or motor overheat may
be caused by excessive torque or increased motor current.
⋅ Set parameters as below when running the vector control dedicated motor (SF-V5RU, SF-V5RU1, SF-V5RU3, SF-
V5RU4, SF-VR) under V/F control.
Motor Type Pr. 19 Setting Pr. 3 Setting
SF-V5RU-3.7kW 170V
SF-V5RU-5.5kW or more 160V
50Hz
SF-V5RUH-3.7kW 340V
SF-V5RUH-5.5kW or more 320V
SF-V5RU1-30kW or less 160V
SF-V5RU1-37kW 170V
33.33Hz
SF-V5RU3-22kW or less 160V
SF-V5RU3-30kW 170V
SF-V5RU4-3.7kW, 7.5kW 150V
16.67Hz
SF-V5RU4-other than the above 160V
SF-VR 160V
50Hz
SF-VRH 320V

REMARKS
When operation is discontinued under vector control due to failure of an encoder, etc., setting "9999" in Pr. 80 Motor capacity or Pr. 81
Number of motor poles enables V/F control operation.

CAUTION
⋅ When Advanced magnetic flux vector control mode, Real sensorless vector control or vector control is selected, Pr. 3, Pr. 47, Pr.
113 and Pr. 19 are invalid and Pr. 83 and Pr. 84 are valid.
Note that Pr. 3 or Pr. 47 and Pr. 113 values are valid as inflection points of S-pattern when Pr. 29 Acceleration/deceleration pattern
selection = "1" (S-pattern acceleration/deceleration A).
⋅ When Pr. 71 Applied motor is set to "2" (adjustable 5 points V/F characteristic), the Pr. 47 and Pr. 113 settings become invalid. In
addition, you cannot set "8888" or "9999" in Pr. 19.
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 14 Load pattern selection Refer to page 144
Pr. 29 Acceleration/deceleration pattern selection Refer to page 158
Pr. 71 Applied motor Refer to page 169
Pr. 80 Motor capacity Refer to page 75.
Pr. 83 Rated motor voltage, Pr. 84 Rated motor frequency Refer to page 171. 4
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207.
Advanced magnetic flux vector control Refer to page 131.
Real sensorless vector control Refer to page 75.
PARAMETERS

143
V/F pattern

4.10.2 Load pattern selection (Pr. 14) V/F

You can select the optimum output characteristic (V/F characteristic) for the application and load characteristics.

Parameter
Name Initial Value Setting Range Description
Number
0 For constant-torque load
1 For variable-torque load
For constant-torque elevators
2
(at reverse rotation boost of 0%)
For constant-torque elevators
3
(at forward rotation boost of 0%)
14 Load pattern selection 0
RT signal ON..... for constant torque load
4 RT signal OFF ... for constant torque
elevators at reverse rotation boost of 0%
RT signal ON..... for constant torque load
5 RT signal OFF ... for constant torque
elevators at forward rotation boost of 0%

Pr.14=0 (1) For constant-torque load (setting "0", initial value)

⋅ At or less than the base frequency, the output voltage varies linearly with the output
100%
frequency.
⋅ Set this value when driving the load whose load torque is constant even if the speed
Output voltage

varies, e.g. conveyor, cart or roll drive.

POINT
If the load is a fan or pump, select "for rated torque load (setting "0")" in any of the
Pr.3 Base frequency
Output frequency (Hz)
following cases.
⋅ When a blower of large moment of inertia (J) is accelerated in a short time
⋅ For constant-torque load such as rotary pump or gear pump
⋅ When load torque increases at low speed, e.g. screw pump

Pr.14=1 (2) For variable-torque load (setting "1")

⋅ At or less than the base frequency, the output voltage varies with the output frequency
100%
in a square curve.
⋅ Set this value when driving the load whose load torque varies in proportion to the
Output voltage

square of the speed, e.g. fan or pump.

Pr.3 Base frequency

Output frequency (Hz)

(3) Vertical lift load applications (setting

values "2, 3")
Pr.14=2 Pr.14=3
⋅ Set "2" when a vertical lift load is fixed as power driving
load at forward rotation and regenerative load at
For vertical lift loads For vertical lift loads
At forward rotation boost...Pr.0 setting At forward rotation boost...0% reverse rotation.
At reverse rotation boost...0% At reverse rotation boost...Pr.0 setting ⋅ Pr. 0 Torque boost is valid during forward rotation and
torque boost is automatically changed to "0%" during
100% 100% reverse rotation.
Forward Reverse ⋅ Set "3" for an elevated load that is in the driving mode
voltage

voltage
Output

Output

rotation rotation
during reverse rotation and in the regenerative load
Reverse Forward mode during forward rotation according to the load
Pr.0 rotation Pr.0 rotation weight, e.g. counterweight system.
Base frequency Base frequency
Output frequency (Hz) Output frequency (Hz) REMARKS
⋅ When torque is continuously regenerated as vertical lift load, it
is effective to set the rated voltage in Pr. 19 Base frequency
voltage to prevent trip due to current at regeneration.

144
 V/F pattern

Pr. 14
RT(X17) Signal Output Characteristics (4) Change load pattern selection using
Setting terminal (setting values are "4, 5")
For constant torque load
ON (same as when the setting ⋅ Output characteristic can be switched between for
is "0") constant torque load and for elevator using the RT
4
For elevators at reverse signal or X17 signal.
OFF rotation boost of 0% (same ⋅ For the terminal used for X17 signal input, set "17"
as when the setting is "2") in any of Pr. 178 to Pr. 189 (input terminal function
For constant torque load selection) to assign the function.
ON (same as when the setting When X17 is assigned, switchover by the RT signal
is "0") is invalid.
5
For elevators at forward
OFF rotation boost of 0% (same
as when the setting is "3")

REMARKS
⋅ The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), the RT signal can be assigned to the other terminal.

CAUTION
⋅ When Advanced magnetic flux vector control, Real sensorless vector control or vector control is selected, this parameter setting
is ignored.
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal. When the RT signal is ON, the other second functions are also valid.

♦ Parameters referred to ♦
Pr. 0 Torque boost Refer to page 129
Pr. 3 Base frequency Refer to page 142
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Advanced magnetic flux vector control Refer to page 131.
Real sensorless vector control Refer to page 75.

4
PARAMETERS

145
V/F pattern

4.10.3 Elevator mode (automatic acceleration/deceleration) (Pr. 61, Pr. 64, Pr. 292) V/F

Operation matching a load characteristic of elevator with counterweight can be performed.

Parameter Name Initial Setting Range Description

Number Value
0 to 500A Set the reference current for elevator mode.
61 Reference current 9999
9999 Rated inverter current value reference
Starting frequency for 0 to 10% Set the starting frequency for the elevator mode.
64 9999
elevator mode 9999 Starting frequency 2Hz
0 Normal mode
Optimum acceleration/deceleration mode
3
(Refer to page 162.)
Elevator mode 1
5
Automatic acceleration/ (stall prevention operation level 150%)
292 0
deceleration Elevator mode 2
6
(stall prevention operation level 180%)
7, 8 Brake sequence mode 1, 2 (Refer to page 193.)
Minimum acceleration/deceleration mode
11
(Refer to page 162.)

(1) Elevator mode

⋅ When "5" or "6" is set in Pr. 292 Automatic acceleration/deceleration , elevator mode is selected and each setting is
changed as in the table below.
⋅ Enough torque is generated during power driving and the torque boost value is automatically changed during
regeneration and operation without load so that overcurrent protection function does not activate due to over
excitation.
Elevator Mode
Normal Mode When Pr.0=6%
Pr. 292 = 5 Pr. 292 = 6
Torque boost Pr. 0 Changes according to the output Torque boost (%) Pr.292= "5"
(3/2%) current (right chart) Pr.292= "6"
6%
Starting Pr. 13 (0.5Hz) Pr. 64 (2Hz) Pr.0
frequency Accelerate after maintaining 100ms
3%
Base frequency Pr. 19 (9999) 220V (440V)
voltage Torque boost 0%
Regenerative Driving
Stall prevention 0 100 120 140
current current
operation level Pr. 22 (150%) etc. 150% 180% 115
(%)

⋅ When operating the elevator with load more than the rated inverter current, the maximum torque may become
insufficient.
For the elevator without counterweight, setting "2 or 3" (for elevator load) in Pr. 14 Load pattern selection and an
appropriate value in Pr. 19 Base frequency voltage will generate larger maximum torque than when elevator mode is
selected.
REMARKS
⋅ Stall prevention operation level automatically decreases according to the electronic thermal relay function cumulative value, to
prevent inverter overload trip (E.THT, E.THM).

(2) Adjustment of elevator mode (Pr. 61, Pr. 64)

⋅ By setting the adjustment parameters Pr. 61 and Pr. 64, the application range can be made wider.
Parameter Name Setting Range Description
Number
For example, when the motor and inverter are different in
0 to 500A capacity, set the rated motor current value. Set reference
61 Reference current current (A) of the stall prevention operation level
9999 (initial value) The rated inverter output current is defined as reference.
Starting frequency for 0 to 10Hz Set the starting frequency for the elevator mode.
64 elevator mode 9999 (initial value) Starting frequency 2Hz

REMARKS
⋅ Even if elevator mode has been selected, inputting the JOG signal (jog operation), RT signal (second function selection) or X9
signal (third function selection) during an inverter stop will switch to the normal operation and give priority to jog operation or
second and third function selection. Note that JOG and RT signal input is invalid even if JOG signal and RT signal are input
during operation with acceleration/deceleration selected.
⋅ Elevator mode is invalid when Advanced magnetic flux vector, Real sensorless vector control or vector control is selected.
⋅ Since the Pr. 61 and Pr. 64 settings automatically return to the initial value (9999) if the Pr. 292 setting is changed, set Pr. 292 first
when you need to set Pr. 61 and Pr. 64.

146
 V/F pattern

4.10.4 Adjustable 5 points V/F (Pr. 71, Pr. 100 to Pr. 109) V/F

A dedicated V/F pattern can be made by freely setting the V/F characteristic between a startup and the base
frequency and base voltage under V/F control (frequency voltage/frequency).
The torque pattern that is optimum for the machine's characteristic can be set.

Parameter Name Initial Value Setting Range Description

Number
0 to 8, 13 to 18, Set "2" for adjustable 5 points V/F
71 Applied motor 0 30, 33, 34, 40, 43, control.
44, 50, 53, 54
100 V/F1(first frequency) 9999 0 to 400Hz, 9999
101 V/F1(first frequency voltage) 0V 0 to 1000V
102 V/F2(second frequency) 9999 0 to 400Hz, 9999
103 V/F2(second frequency voltage) 0V 0 to 1000V
104 V/F3(third frequency) 9999 0 to 400Hz, 9999 Set each points (frequency,
voltage) of V/F pattern.
105 V/F3(third frequency voltage) 0V 0 to 1000V 9999: No V/F setting
106 V/F4(fourth frequency) 9999 0 to 400Hz, 9999
107 V/F4(fourth frequency voltage) 0V 0 to 1000V
108 V/F5(fifth frequency) 9999 0 to 400Hz, 9999
109 V/F5(fifth frequency voltage) 0V 0 to 1000V
Voltage ⋅ Any V/F characteristic can be provided by presetting the parameters of
Base frequency V/F1 (first frequency voltage/first frequency) to V/F5.
voltage ⋅ For a machine of large static friction coefficient and small dynamic
Pr.19 V/F5 static friction coefficient, for example, set a V/F pattern that will
increase the voltage only in a low-speed range since such a machine
V/F4 requires large torque at a start.
V/F3 (Setting procedure)
Torque boost V/F1 1)Set the rated motor voltage in Pr. 19 Base frequency voltage. (No
Pr.0 V/F2 Frequency function at the setting of "9999" (initial value) or "8888".)
0 Base frequency
2)Set Pr. 71 Applied motor to "2" (Adjustable 5 points V/F characteristic).
V/F Characteristic Pr.3 3)Set the frequency and voltage you want to set in Pr. 100 to Pr. 109.

CAUTION
Make sure to set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.

CAUTION
⋅ Adjustable 5 points V/F characteristics function only under V/F control. They do not function under Advanced magnetic flux
vector control, Real sensorless vector control or vector control.
⋅ When Pr. 19 Base frequency voltage = "8888" or "9999", Pr. 71 cannot be set to "2". To set Pr. 71 to "2", set the rated voltage value in Pr. 19.
⋅ When the frequency values at each point are the same, a write disable error ( ) appears.
⋅ Set the points (frequencies, voltages) of Pr. 100 to Pr. 109 within the ranges of Pr. 3 Base frequency and Pr. 19 Base frequency voltage.
⋅ When "2" is set in Pr. 71, Pr. 47 Second V/F (base frequency) and Pr. 113 Third V/F (base frequency) will not function.
⋅ When Pr. 71 is set to "2", the electronic thermal relay function makes calculation as a standard motor.

REMARKS
⋅ A greater energy saving effect can be expected by combining Pr. 60 Energy saving control selection and adjustable 5 points V/F. 4
⋅ For the 5.5K, 7.5K, the Pr. 0 Torque boost and Pr. 12 DC injection brake operation voltage settings are automatically changed
according to the Pr. 71 setting as follows.
PARAMETERS

Standard Motor Setting Constant Torque Motor Setting

Pr. 71
0, 2, 3 to 8, 40, 43, 44 1, 13 to 18, 50, 53, 54
Pr. 0 3% 2%
Pr. 12 4% 2%

♦ Parameters referred to ♦
⋅ Pr. 3 Base frequency, Pr. 19 Base frequency voltage Refer to page 142
⋅ Pr. 12 DC injection brake operation voltage Refer to page 185
⋅ Pr. 47 Second V/F (base frequency), Pr. 113 Third V/F (base frequency) Refer to page 142
⋅ Pr. 60 Energy saving control selection Refer to page 255
⋅ Pr. 71 Applied motor, Pr. 450 Second applied motor Refer to page 169
⋅ Advanced magnetic flux vector control Refer to page 131
⋅ Real sensorless vector control Refer to page 75
⋅ Vector control Refer to page 75

147
Frequency setting by external terminals

4.11 Frequency setting by external terminals

Purpose Parameter that must be Set Refer to Page
Make frequency setting by Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
Multi-speed operation 148
combination of terminals Pr. 232 to Pr. 239
Perform jog operation Jog operation Pr. 15, Pr. 16 150
Added compensation for multi-speed Multi-speed input
Pr. 28 152
setting and remote setting compensation selection
Infinitely variable speed setting by
Remote setting function Pr. 59 152
terminals

4.11.1 Multi-speed setting operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)
Can be used to change the preset speed in the parameter with the contact terminals.
Any speed can be selected by merely turning on-off the contact signals (RH, RM, RL, REX signals).

Parameter
Name Initial Value Setting Range Description
Number
Multi-speed setting (high
4 60Hz 0 to 400Hz Set the frequency when RH turns on.
speed)
Multi-speed setting (middle
5 30Hz 0 to 400Hz Set the frequency when RM turns on.
speed)
Multi-speed setting (low
6 10Hz 0 to 400Hz Set the frequency when RL turns on.
speed)
24 Multi-speed setting (speed 4) 9999 0 to 400Hz, 9999
25 Multi-speed setting (speed 5) 9999 0 to 400Hz, 9999
26 Multi-speed setting (speed 6) 9999 0 to 400Hz, 9999
27 Multi-speed setting (speed 7) 9999 0 to 400Hz, 9999
Frequency from speed 4 to speed 15
232 Multi-speed setting (speed 8) 9999 0 to 400Hz, 9999
can be set according to the
233 Multi-speed setting (speed 9) 9999 0 to 400Hz, 9999
combination of the RH, RM, RL and
234 Multi-speed setting (speed 10) 9999 0 to 400Hz, 9999
REX signals.
235 Multi-speed setting (speed 11) 9999 0 to 400Hz, 9999
9999: not selected
236 Multi-speed setting (speed 12) 9999 0 to 400Hz, 9999
237 Multi-speed setting (speed 13) 9999 0 to 400Hz, 9999
238 Multi-speed setting (speed 14) 9999 0 to 400Hz, 9999
239 Multi-speed setting (speed 15) 9999 0 to 400Hz, 9999
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.
(1) Multi-speed setting (Pr. 4 to Pr. 6)
⋅ Operation is performed at the frequency set in Pr. 4 when the RH signal turns on, Pr. 5 when the RM signal turns on,
and Pr. 6 when the RL signal turns ON.
Speed 1
Output frequency (Hz)

(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)

RH ON

RM ON

RL ON

REMARKS
⋅ In the initial setting, if two or three speeds are simultaneously selected, priority is given to the set frequency of the lower signal.
For example, when the RH and RM signals turn on, the RM signal (Pr. 5) has a higher priority.
⋅ The RH, RM, RL signals are assigned to the terminal RH, RM, RL in the initial setting.
By setting "0 (RL)", "1 (RM)", "2 (RH)" in any of Pr.178 to Pr.189 (input terminal function assignment), the signals can be assigned to
other terminals.

148
 Frequency setting by external terminals

(2) Multi-speed setting higher than speed 4 (Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)
⋅ Frequency from speed 4 to speed 15 can be set according to the combination of the RH, RM, RL and REX signals. Set
the running frequencies in Pr. 24 to Pr. 27, Pr. 232 to Pr. 239. (In the initial value setting, speed 4 to speed 15 are invalid.)
⋅ For the terminal used for REX signal input, set "8" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function.
Output frequency

Speed 10
Speed 5 Speed 11
Speed 6 Speed 9
Speed 12
Forward Inverter
Speed 13 rotation STF
Speed 4 Speed 8

Frequency setting
Speed 14 REX 10
(Hz)

Multi-speed selection

potentiometer
Speed 7 Speed 15
RH 2
Time RM
5
ON ON ON ON ON ON ON RL
RH
ON ON ON ON ON ON ON SD
RM
ON ON ON ON ON ON
RL
ON ON ON ON ON ON ON ON Multi-Speed Operation
REX
Connection Example
*
* When "9999" is set in Pr. 232 Multi-speed setting (speed 8), operation is
performed at frequency set in Pr. 6 when RH, RM and RL are turned
OFF and REX is turned ON.

REMARKS
⋅ The priorities of the frequency commands by the external signals are "jog operation > multi-speed operation > terminal 4 analog
input > terminal 2 analog input". (Refer to page 271 for the frequency command by analog input)
⋅ Valid in External operation mode or PU/External combined operation mode (Pr. 79 = "3" or "4").
⋅ Multi-speed parameters can also be set in the PU or External operation mode.
⋅ Pr. 24 to Pr. 27 and Pr. 232 to Pr. 239 settings have no priority between them.
⋅ When a value other than “0” is set in Pr. 59 Remote function selection, the RH, RM and RL signals are used as the remote setting
signals and the multi-speed setting becomes invalid.
⋅ When making analog input compensation, set "1" in Pr. 28 Multi-speed input compensation selection.
CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 15 Jog frequency Refer to page 150
Pr. 28 Multi-speed input compensation selection Refer to page 152
Pr. 59 Remote function selection Refer to page 152
Pr. 79 Operation mode selection Refer to page 290
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

4
PARAMETERS

149
Frequency setting by external terminals

4.11.2 Jog operation (Pr. 15, Pr. 16)

You can set the frequency and acceleration/deceleration time for jog operation. Jog operation can be performed
either externally or from the PU. This function is useful for conveyor positioning, test operation, etc.

Parameter Initial
Name Setting Range Description
Number Value
15 Jog frequency 5Hz 0 to 400Hz Set the frequency for jog operation.

Jog Set the acceleration/deceleration time for jog operation. Set the
time taken to reach the frequency (Initial value is 60Hz) set in Pr. 20
acceleration/
16 0.5s 0 to 3600/360s* Acceleration/deceleration reference frequency for acceleration/
deceleration
deceleration time.
time The acceleration and deceleration time cannot be set separately.
The above parameters are displayed as simple mode parameters only when the parameter unit (FR-PU04/FR-PU07) is connected. When the
operation panel (FR-DU07) is connected, the above parameters can be set only when Pr. 160 User group read selection = "0". (Refer to page 285)
* When the setting of Pr. 21 Acceleration/deceleration time increments is "0" (initial value), the setting range is "0 to 3600s" and the setting increments are
"0.1s", and when the setting is "1", the setting range is "0 to 360s" and the setting increments are "0.01s"
(1) Jog operation from outside
⋅ When the JOG signal is ON, a start and stop can be made by the start signal (STF, STR). (The JOG signal is
assigned to the terminal JOG in the initial setting)
Output Inverter
frequency(Hz)
Pr.20 Three-phase AC R/L1 U
Pr.15 power supply S/L2 V Motor
Forward
Jog frequency rotation T/L3 W
Time Forward rotation start
setting range Reverse STF
rotation Reverse rotation start STR
Pr.16 JOG signal JOG

JOG signal
SD
ON
Forward 10
rotation STF 2
ON
Reverse 5
rotation STR ON Connection diagram for external jog operation

Operation Indication
1.Screen at power-ON
Confirm that the External operation mode is selected.
([EXT] lit)
If not displayed, press to change to the
External [EXT] operation mode.
If the operation mode still does not change,
set Pr. 79 to change to the External operation mode.
ON
2.Turn the JOG switch ON.
3.Turn the start switch (STF or STR) ON. Forward
rotation
The motor rotates while start switch ON
(STF or STR) is ON. Reverse
Rotates at 5Hz. (Initial value of Pr. 15) rotation
Rotates while ON
Forward
rotation
4.Turn the start switch (STF or STR) OFF.
Reverse
OFF rotation
Stop
REMARKS
⋅ When you want to change the running frequency, change Pr. 15 Jog frequency . (initial value "5Hz")
⋅ When you want to change the acceleration/deceleration time, change Pr. 16 Jog acceleration/deceleration time. (initial value
"0.5s")

150
 Frequency setting by external terminals

(2) Jog operation from PU

Inverter
⋅ Set the PU (FR-DU07/FR-PU07/FR-PU04) to the
R/L1 U
jog operation mode. Operation is performed only Three-phase AC
S/L2 V Motor
while the start button is pressed. power supply T/L3 W

FR-DU07

Operation Indication
1.Confirmation of the RUN indicator and
operation mode indicator
The monitor mode should have been selected.
The inverter should be at a stop.

2.Press to choose the

PU JOG operation mode.

3.Press (or ).

While (or ) is pressed, the Hold down.

motor rotates.
Rotates at 5Hz. (initial value of Pr. 15)

4.Release (or ).
Release Stop
[When changing the frequency of PU JOG
operation] The parameter
number read
5.Press to choose the parameter previously
setting mode. appears.
6.Turn until Pr. 15 JOG frequency
appears.

7.Press to show the currently set

value. (5Hz)

8.Turn to set the value to

" ". (10Hz)

9.Press to set.

10. Perform the operations in steps 1 to 4. Flicker Parameter setting complete!!

The motor rotates at 10Hz.
CAUTION
⋅ When Pr. 29 Acceleration/deceleration pattern selection= "1" (S-pattern acceleration/deceleration A), the acceleration/deceleration
time is the period of time required to reach Pr. 3 Base frequency. 4
⋅ The Pr. 15 setting should be equal to or higher than the Pr. 13 Starting frequency setting.
⋅ The JOG signal can be assigned to the input terminal using any of Pr. 178 to Pr. 189 (input terminal function selection). When terminal
PARAMETERS

assignment is changed, the other functions may be affected. Set parameters after confirming the function of each terminal.
⋅ During jog operation, the second acceleration/deceleration via the RT signal cannot be selected. (The other second functions
are valid. (Refer to page 211))
⋅ When Pr. 79 Operation mode selection = "4", push / of the PU (FR-DU07/FR-PU04/FR-PU07) to make a start or push

to make a stop.

⋅ This function is invalid when Pr. 79 = "3".

⋅ Jog operation is invalid under position control.
♦ Parameters referred to ♦
⋅ Pr. 13 Starting frequency Refer to page 157
⋅ Pr. 29 Acceleration/deceleration pattern selection Refer to page 158
⋅ Pr. 20 Acceleration/deceleration reference frequency, Pr. 21 Acceleration/deceleration time increments Refer to page 155
⋅ Pr. 79 Operation mode selection Refer to page 290
⋅ Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

151
Frequency setting by external terminals

4.11.3 Input compensation of multi-speed and remote setting (Pr. 28)

By inputting the frequency setting compensation signal (terminal 1, 2), the speed (frequency) can be
compensated for relative to the multi-speed setting or the speed setting by remote setting function.

Parameter Name Initial Value Setting Range Description

Number
Multi-speed input 0 Without compensation
28 0
compensation selection 1 With compensation

REMARKS
⋅ Select the terminal (terminal 1, 2) used for compensation input voltage (0 to ±5V, 0 to ±10) using Pr. 73 Analog input selection.
⋅ When using terminal 1 for compensation input, set "0" (initial value) in Pr. 868 Terminal 1 function assignment.

♦ Parameters referred to ♦
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239 (multi-speed operation) Refer to page 148
Pr. 73 Analog input selection Refer to page 263
Pr. 59 Remote function selection Refer to page 152
Pr. 868 Terminal 1 function assignment Refer to page 262

4.11.4 Remote setting function (Pr. 59)

Even if the operation panel is located away from the enclosure, you can use contact signals to perform
continuous variable-speed operation, without using analog signals.
By simply setting this parameter, you can use the acceleration, deceleration and setting clear functions of the
motorized speed setter (FR-FK).

Description
Parameter Name Initial Setting
Number Value Range RH, RM, RL signal Frequency setting
function storage function
0 Multi-speed setting ⎯
1 Remote setting Yes
59 Remote function selection 0 2 Remote setting No
No
3 Remote setting (Turning STF/STR off clears
remotely- set frequency.)

When Pr. 59 = 1, 2 When Pr. 59 = 1

Output frequency

Forward Inverter When Pr. 59 = 3

rotation When Pr. 59 = 2, 3
STF
Acceleration *
RH
Deceleration
(Hz)

RM 10
Clear
RL 2 0Hz Time
Acceleration ON ON
SD 5 (RH) ON
Deceleration ON
Connection (RM)
diagram for remote setting Clear (RL) ON
Forward ON
rotation (STF)
ON ON ON
Power supply ON ON
* External operation frequency (other than multi-speed) or PU running frequency

(1) Remote setting function

⋅ Use Pr. 59 to select whether the remote setting function is used or not and whether the frequency setting storage
function in the remote setting mode is used or not.
When Pr. 59 is set to any of "1 to 3" (remote setting function valid), the functions of the RH, RM and RL signals are
changed to acceleration (RH), deceleration (RM) and clear (RL).
⋅ When the remote function is used, the output frequency of the inverter can be compensated for as follows:
External operation .. Frequency set with RH and RM operation + external operation frequency other than multi-speed
(PU operation frequency when Pr. 79 = "3" (external, PU combined)) and terminal 4 input.
(When making analog input compensation, set "1" in Pr. 28 Multi-speed input compensation
selection.
When Pr. 28 is set to "0" and acceleration/deceleration is made to reach the set frequency of
the analog voltage input (terminal 2 or terminal 4) by RH/RM, the auxiliary input by terminal 1
becomes invalid.)
PU operation ...........Frequency set by RH/RM operation + PU running frequency

152
 Frequency setting by external terminals

(2) Frequency setting storage

⋅ The frequency setting storage function stores the remotely-set frequency (frequency set by RH/RM operation) into
the memory (EEPROM). When power is switched OFF once, then ON, operation is resumed with that output
frequency value. (Pr. 59 = 1)
<Frequency setting storage conditions>
⋅ Frequency at the point when the start signal (STF or STR) turns OFF
⋅ Remotely-set frequency is stored every minute after turning OFF (ON) the RH (acceleration) and RM
(deceleration) signals together. (The frequency is overwritten if the latest frequency is different from the
previous frequency when comparing the two. The state of the RL signal does not affect writing.)
CAUTION
⋅ The range of frequency changeable by RH (Hz)
(acceleration) and RM (deceleration) is 0 to The set frequency is clamped at (main speed + Pr.1 )
maximum frequency (Pr. 1 or Pr. 18 setting). Note that
the maximum value of set frequency is (main speed Output frequency is Set frequency
+ maximum frequency). clamped at Pr.1
Pr.1
Output frequency
Main speed setting

0Hz Time
Acceleration(RH) ON
Deceleration(RM) ON
Forward rotation(STF) ON

⋅ When the acceleration or deceleration signal switches ON, acceleration/deceleration time is as set in Pr. 44 Second acceleration/
deceleration time and Pr. 45 Second deceleration time. Note that when the time set in Pr. 7 or Pr. 8 is longer than the time set in Pr.
44 or Pr. 45, the acceleration/deceleration time is as set in Pr. 7 or Pr. 8. (when RT signal is OFF)
When the RT signal is ON, acceleration/deceleration is made in the time set to Pr. 44 and Pr. 45, regardless of the Pr. 7 or Pr. 8
setting.
⋅ Even if the start signal (STF or STR) is OFF, turning ON the acceleration (RH) or deceleration (RM) signal varies the preset
frequency.
⋅ When switching the start signal from ON to OFF, or changing frequency by the RH or RM signal frequently, set the frequency
setting value storage function (write to EEPROM) invalid (Pr. 59 = "2, 3"). If set valid (Pr. 59 = "1"), frequency is written to
EEPROM frequently, this will shorten the life of the EEPROM.
⋅ The RH, RM, RL signals can be assigned to the input terminal using any Pr. 178 to Pr. 189 (input terminal function selection). When
terminal assignment is changed, the other functions may be affected. Set parameters after confirming the function of each
terminal.
⋅ Also available for the Network operation mode.

4
PARAMETERS

153
Frequency setting by external terminals

REMARKS
During jog operation or PID control operation, the remote setting function is invalid.

Setting frequency is "0"

⋅ Even when the remotely-set
Remotely-set frequency stored last time
frequency is cleared by turning
on the RL (clear) signal after

Output frequency
(Hz)
Within 1 minute
turn OFF (ON) of both the RH
Remotely-set frequency stored last time
and RM signals, the inverter
operates at the remotely-set
frequency stored in the last
Time
operation if power is reapplied
before one minute has elapsed
Acceleration (RH) ON
since turn OFF (ON) of both the Deceleration (RM) OFF
RH and RM signals Clear (RL)
ON

Forward rotation ON ON
(STF)
Power supply ON ON

⋅ When the remotely-set

frequency is cleared by turning Remotely-set frequency stored last time
One minute
on the RL (clear) signal after More than
Output frequency
(Hz)

one minute
turn OFF (ON) of both the RH Operation is performed at the set
frequency 0Hz.
and RM signals, the inverter
operates at the frequency in the
remotely-set frequency cleared
Time
state if power is reapplied after
one minute has elapsed since
Acceleration (RH) ON
turn OFF (ON) of both the RH Deceleration (RM) OFF
and RM signals. Clear (RL)
ON

Forward rotation (STF) ON ON

Power supply ON ON

CAUTION
When selecting this function, re-set the maximum frequency according to the machine.
♦ Parameters referred to ♦
Pr. 1 Maximum frequency, Pr. 18 High speed maximum frequency Refer to page 140
Pr. 7 Acceleration time, Pr. 8 Deceleration time, Pr. 44 Second acceleration/deceleration time, Pr. 45 Second deceleration time Refer to page 155
Pr. 28 Multi-speed input compensation selection Refer to page 152
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

154
 Setting of acceleration/deceleration time
and acceleration/deceleration pattern

4.12 Setting of acceleration/deceleration time and

acceleration/deceleration pattern
Purpose Parameter that must be Set Refer to Page
Motor acceleration/deceleration time Pr. 7, Pr. 8, Pr. 20, Pr. 21,
Acceleration/deceleration time 155
setting Pr. 44, Pr. 45, Pr. 110, Pr. 111
Starting frequency and start-
Starting frequency Pr. 13, Pr. 571 157
time hold
Pr. 29, Pr. 140 to Pr. 143,
Set acceleration/deceleration pattern Acceleration/deceleration
Pr. 380 to Pr. 383, 158
suitable for application pattern and backlash measures
Pr. 516 to Pr. 519
Automatically set appropriate Automatic acceleration/
Pr. 61 to Pr. 63, Pr. 292 162
acceleration/deceleration time deceleration

4.12.1 Setting of the acceleration and deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 21,
Pr. 44, Pr. 45, Pr. 110, Pr. 111)
Used to set motor acceleration/deceleration time.
Set a larger value for a slower speed increase/decrease or a smaller value for a faster speed increase/decrease.
For the acceleration time at automatic restart after instantaneous power failure, refer to Pr. 611 Acceleration time at
a restart (page 243).

Parameter
Name Initial Value Setting Range Description
Number
7.5K or lower 5s
7 Acceleration time 0 to 3600/360s *1 Set the motor acceleration time.
11K or higher 15s
7.5K or lower 5s
8 Deceleration time 0 to 3600/360s *1 Set the motor deceleration time.
11K or higher 15s
Set the frequency that will be the basis of
Acceleration/
acceleration/deceleration time.
20 deceleration 60Hz 1 to 400Hz
As acceleration/deceleration time, set the
reference frequency
frequency change time from stop to Pr. 20.
Increments: 0.1s Increments and setting
0
Acceleration/ Range: 0 to 3600s range of acceleration/
21 deceleration time 0 deceleration time
increments Increments: 0.01s setting can be
1
Range: 0 to 360s changed.
Second
Set the acceleration/deceleration time when
44 acceleration/ 5s 0 to 3600/360s *1
the RT signal is on.
deceleration time
Set the deceleration time when the RT
Second 0 to 3600/360s *1
45 9999 signal is on.
deceleration time
9999 Acceleration time = deceleration time
Set the acceleration/deceleration time when
0 to 3600/360s *1
Third acceleration/ the X9 signal is on.
110 9999
deceleration time Without the third acceleration/deceleration
9999
function.
Set the deceleration time when the X9
Third deceleration 0 to 3600/360s *1
111 9999 signal is on.
time
9999 Acceleration time = deceleration time 4
*1 Depends on the Pr. 21 Acceleration/deceleration time increments setting. The initial value for the setting range is "0 to 3600s" and the setting
increments is "0.1s".
PARAMETERS

(1) Acceleration time setting (Pr. 7, Pr. 20)

Pr.20
(60Hz) Running ⋅ Use Pr. 7 Acceleration time to set the acceleration time required to reach Pr.
frequency 20 Acceleration/deceleration reference frequency from 0Hz.
frequency (Hz)

⋅ Set the acceleration time according to the following formula.

Output

Pr. 20
Time Acceleration Acceleration time from stop to
= Maximum operating ×
time setting maximum operating frequency
Acceleration Pr.7 Deceleration Pr.8 frequency - Pr. 13
time Pr.44 time Pr.45
Pr.110 Pr.111
Example) How to find the setting value for Pr. 7 when increasing the output
60Hz
frequency to the maximum frequency of 50Hz in 10s with Pr.20 = Pr. 7 = × 10s 12.1s
60Hz (initial setting) and Pr.13 = 0.5Hz. 50Hz - 0.5Hz

155
Setting of acceleration/deceleration time
and acceleration/deceleration pattern

(2) Deceleration time setting (Pr. 8, Pr. 20)

⋅ Use Pr. 8 Deceleration time to set the deceleration time required to reach 0Hz from Pr. 20 Acceleration/deceleration
reference frequency.
⋅ Set the deceleration time according to the following formula.
Pr. 20
Deceleration Deceleration time from maximum
= Maximum operating ×
time setting operating frequency to stop.
frequency - Pr. 10

Example)How to find the setting value for Pr.8 when decreasing the output
120Hz
frequency from the maximum frequency of 50Hz in 10s with Pr. Pr. 8 = × 10s 25.5s
20 = 120Hz and Pr. 10 = 3Hz. 50Hz - 3Hz

(3) Change the setting range and increments of the acceleration/deceleration time (Pr. 21)
⋅ Use Pr. 21 to set the acceleration/deceleration time and minimum setting range.
Setting "0" (initial value)......................0 to 3600s (minimum setting increments 0.1s)
Setting "1" ...........................................0 to 360s (minimum setting increments 0.01s)
CAUTION
⋅ Changing the Pr. 21 setting changes the acceleration/deceleration time setting (Pr. 7, Pr. 8, Pr. 16, Pr. 44, Pr. 45, Pr. 110, Pr. 111, Pr.
264, Pr. 265).
(The Pr. 611 Acceleration time at a restart setting is not affected.)
<Example>
When Pr. 21 = "0", setting "5.0" s in Pr. 7 and "1" in Pr. 21 automatically changes the Pr. 7 setting to "0.5" s.

(4) Set multiple acceleration/deceleration time (RT signal, Pr. 44, Pr. 45, Pr. 110, Pr. 111)
⋅ Pr. 44 and Pr. 45 are valid when the RT signal is ON, and Pr. 110 and Pr. 111 are valid when the X9 signal is ON.
When both the RT and X9 are ON, Pr. 110 and Pr. 111 are valid.
⋅ For the terminal used for X9 signal input, set "9" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign
the function.
⋅ When "9999" is set in Pr. 45 or Pr. 111, the deceleration time becomes equal to the acceleration time (Pr. 44, Pr. 110).
⋅ When Pr. 110 = "9999", third acceleration/deceleration time is invalid.
CAUTION
⋅ In S-shaped acceleration/deceleration pattern A (refer to page 158), the set time is the period required to reach the base
frequency set in Pr. 3 Base frequency.
⋅ Acceleration/deceleration time formula when the set frequency is the base frequency or higher
4 T 5 T: Acceleration/deceleration time setting value(s)
t= × 2 × f2 + T f : Set frequency(Hz)
9 (Pr. 3) 9
⋅ Guideline for acceleration/deceleration time when Pr. 3 Base frequency = 60Hz (0Hz to set frequency)
Frequency setting (Hz)
Acceleration/ 60 120 200 400
deceleration time (s)
5 5 12 27 102

15 15 35 82 305

⋅ The RT and X9 signals can be assigned to the input terminal using any of Pr. 178 to Pr. 189 (input terminal function selection).
When terminal assignment is changed, the other functions may be affected. Set parameters after confirming the function of
each terminal.

REMARKS
⋅ The RT (X9) signal acts as the second (third) function selection signal and makes the other second (third) function valid. (Refer
to page 211)
⋅ The RT signal is assigned to the RT terminal in the default setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal
function selection), you can assign the RT signal to the other terminal.
⋅ If the Pr. 20 setting is changed, the Pr. 125 and Pr. 126 (frequency setting signal gain frequency) settings do not change. Set Pr. 125
and Pr. 126 to adjust the gains.
⋅ When the Pr. 7, Pr. 8, Pr. 44, Pr. 45, Pr. 110 and Pr. 111 settings are 0.03s or less, the acceleration/deceleration time is 0.04s
(under V/F control, Advanced magnetic flux vector control). At that time, set Pr. 20 to "120Hz" or less.
⋅ If the acceleration/deceleration time is set, the actual motor acceleration/deceleration time cannot be made shorter than the
shortest acceleration/deceleration time determined by the mechanical system J (moment of inertia) and motor torque.
♦ Parameters referred to ♦
Pr. 3 Base frequency Refer to page 142
Pr. 10 DC injection brake operation frequency Refer to page 185
Pr. 29 Acceleration/deceleration pattern selection Refer to page 158
Pr. 125, Pr. 126 (frequency setting gain frequency) Refer to page 271
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

156
 Setting of acceleration/deceleration time
and acceleration/deceleration pattern

4.12.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571)

You can set the starting frequency and hold the set starting frequency for a certain period of time.
Set these functions when you need the starting torque or want to smooth motor drive at a start.

Parameter
Name Initial Value Setting Range Description
Number
Frequency at start can be set in the
range 0 to 60Hz.
13 Starting frequency 0.5Hz 0 to 60Hz
You can set the starting frequency at
which the start signal is turned on.
Set the holding time of Pr. 13 Starting
0.0 to 10.0s
571 Holding time at a start 9999 frequency.
9999 Holding function at a start is invalid

Output (1) Starting frequency setting (Pr. 13)

frequency
(Hz) ⋅ Frequency at start can be set in the range 0 to 60Hz.
60
⋅ You can set the starting frequency at which the start signal is
Setting range

turned on.

Pr.13
0
Time

ON
STF

CAUTION
The inverter will not start if the frequency setting signal is less than the value set in Pr. 13.
For example, when 5Hz is set in Pr. 13, the motor will not start running until the frequency setting signal reaches 5Hz.

Output (2) Start-time hold function (Pr. 571)

frequency
(Hz) ⋅ This function holds the time set in Pr. 571 and the output
60 frequency set in Pr. 13 Starting frequency.
⋅ This function performs initial excitation to smooth the motor drive
Setting range

at a start.
Pr. 13 REMARKS
0
Time When Pr. 13 = "0Hz", the starting frequency is held at 0.01Hz.
Pr. 571 setting time
ON
STF

CAUTION
⋅ When the start signal was turned OFF during start-time hold, deceleration is started at that point.
⋅ At switching between forward rotation and reverse rotation, the starting frequency is valid but the start-time hold function is
invalid.
4
CAUTION
PARAMETERS

Note that when Pr. 13 is set to any value equal to or less than Pr. 2 Minimum frequency, simply turning ON the start
signal will run the motor at the preset frequency even if the command frequency is not input.

♦ Parameters referred to ♦
Pr. 2 Minimum frequency Refer to page 140

157
Setting of acceleration/deceleration time
and acceleration/deceleration pattern

4.12.3 Acceleration/deceleration pattern (Pr. 29, Pr. 140 to Pr. 143, Pr. 380 to Pr. 383,
Pr. 516 to Pr. 519)
You can set the acceleration/deceleration pattern suitable for application.
You can also set the backlash measures that stop acceleration/deceleration once at the parameter-set frequency
and time during acceleration/deceleration.

Parameter Initial Setting

Name Description
Number Value Range
0 Linear acceleration/ deceleration
1 S-pattern acceleration/deceleration A
Acceleration/deceleration pattern 2 S-pattern acceleration/deceleration B
29 0
selection 3 Backlash measures
4 S-pattern acceleration/deceleration C
5 S-pattern acceleration/deceleration D
140 Backlash acceleration stopping frequency 1Hz 0 to 400Hz
141 Backlash acceleration stopping time 0.5s 0 to 360s Set the stopping frequency and time for
backlash measures.
142 Backlash deceleration stopping frequency 1Hz 0 to 400Hz Valid when Pr. 29 = 3
143 Backlash deceleration stopping time 0.5s 0 to 360s

380 Acceleration S-pattern 1 0 0 to 50% Valid when S-pattern acceleration/

deceleration C (Pr. 29 = 4) is set.
Set the time taken for S-pattern from
381 Deceleration S-pattern 1 0 0 to 50% starting of acceleration/deceleration to
linear acceleration as % to the
382 Acceleration S-pattern 2 0 0 to 50% acceleration/deceleration time (Pr. 7, Pr. 8
etc.).
An acceleration/deceleration pattern can
383 Deceleration S-pattern 2 0 0 to 50% be changed with the X20 signal.

516 S-pattern time at a start of acceleration 0.1s 0.1 to 2.5s

S-pattern time at a completion of Valid when S-pattern acceleration/
517 0.1s 0.1 to 2.5s deceleration D (Pr. 29 = 5) is set.
acceleration
Set the time taken for S-pattern
518 S-pattern time at a start of deceleration 0.1s 0.1 to 2.5s
acceleration/deceleration (S-pattern
S-pattern time at a completion of operation).
519 0.1s 0.1 to 2.5s
deceleration

Setting value "0" (1) Linear acceleration/ deceleration (Pr. 29 = "0", initial value)
Output frequency

[Linear acceleration
/ deceleration] ⋅ When the frequency is changed for acceleration, deceleration, etc. in inverter
operation, the output frequency is changed linearly (linear acceleration/
deceleration) to reach the set frequency without straining the motor and inverter.
Linear acceleration/deceleration has a uniform frequency/time slope.
(Hz)

Time
(2) S-pattern acceleration/deceleration A (Pr. 29 = "1")
Setting value "1"
⋅ For machine tool spindle applications, etc.
Output frequency

[S-pattern acceleration
/deceleration A]
Used when acceleration/deceleration must be made in a short time to a high-
speed range of not lower than the base frequency. In this acceleration/
fb
deceleration pattern, Pr. 3 Base frequency (fb) is the inflection point of the S
pattern and you can set the acceleration/deceleration time appropriate for motor
(Hz)

torque reduction in a constant-power operation region of base frequency (fb) or

Time
higher.
CAUTION
⋅ As the acceleration/deceleration time of S-pattern acceleration/deceleration A, set the time taken until Pr. 3 Base frequency is
reached, not Pr. 20 Acceleration/deceleration reference frequency.

158
 Setting of acceleration/deceleration time
and acceleration/deceleration pattern

Setting value "2" (3) S-pattern acceleration/deceleration B (Pr. 29 = "2")

[S-pattern acceleration
/deceleration B] ⋅ For prevention of load shifting in conveyor and other applications
Since acceleration/deceleration is always made in an S shape from current
Set frequency

frequency (f2) to target frequency (f1), this function eases shock produced at
acceleration/deceleration and is effective for load collapse prevention, etc.
(Hz)

f1
Output frequency

f2
(Hz)

Time
(4) Backlash measures (Pr. 29 = "3", Pr. 140 to Pr. 143)
⋅ What is backlash?
Output frequency (Hz)

Reduction gears have an engagement gap and have a dead zone between
Setting value "3"
[Anti-backlash measure
forward rotation and reverse rotation. This dead zone is called backlash, and
function] this gap disables a mechanical system from following motor rotation.
Pr. 142 More specifically, a motor shaft develops excessive torque when the direction of
rotation changes or when constant-speed operation shifts to deceleration,
Pr. 140 resulting in a sudden motor current increase or regenerative status.
Pr. 13 ⋅ To avoid backlash, acceleration/deceleration is temporarily stopped.
Pr. 141 Pr. 143
Time Set the acceleration/deceleration stopping frequency and time in Pr. 140 to Pr.
143.
CAUTION
Setting the backlash measures increases the acceleration/deceleration time by the stopping time.

(5) S-pattern acceleration/deceleration C (Pr. 29 =

Frequency "4", Pr. 380 to Pr. 383)
Pr.382
Pr.381 ⋅ With the S-pattern acceleration/deceleration C switch
signal (X20), an acceleration/deceleration curve S-pattern 1
Output frequency Pr.383 or S-pattern 2 can be selected.
Set frequency ⋅ For the terminal used for X20 signal input, set "20" in any of
Pr. 178 to Pr. 189 (input terminal function selection) to assign
Pr.380
the function.
S-pattern Time
acceleration/
deceleration OFF ON OFF
C switchover
Operation During During
(X20) X20 signal Acceleration Deceleration
Pr. 380 Acceleration S- Pr. 381 Deceleration
OFF
pattern 1 S-pattern 1
Pr. 382 Acceleration S- Pr. 383 Deceleration
ON
pattern 2 S-pattern 2

Parameter setting (%) Ts / T × 100% ⋅ Set % of time taken for forming an S-pattern in Pr. 380 to Pr.
383 as acceleration time is 100%.
S-pattern
acceleration

REMARKS
⋅ At a start, the motor starts at Pr. 13 Starting frequency when the 4
start signal turns ON.
Linear
acceleration ⋅ If there is a difference between the speed command and speed
PARAMETERS

at a start of deceleration due to torque limit operation etc., the

speed command is matched with the speed to make
Ts Ts deceleration.
T

CAUTION
⋅ Change the S pattern acceleration/deceleration C switch (X20 signal) after the speed becomes constant.
⋅ S pattern operation before switching continues even if the X20 signal is changed during acceleration or deceleration.
⋅ The X20 signal can be assigned to the input terminal using any of Pr. 178 to Pr. 189 (input terminal function selection). Changing
the terminal assignment may affect the other functions. Set parameters after confirming the function of each terminal.

159
Setting of acceleration/deceleration time
and acceleration/deceleration pattern

(6) S-pattern acceleration/deceleration D (Pr. 29 =

"5", Pr. 516 to Pr. 519)
⋅ Set the time taken for S-pattern operation of S-pattern
Output frequency

Pr. 516 Pr. 517 Pr. 518 Pr. 519

acceleration/deceleration using Pr. 516 to Pr. 519.
Set each S-pattern operation time for acceleration start (Pr.
516), acceleration completion (Pr. 517), deceleration start
(Pr. 518) and deceleration completion (Pr. 519).
Time ⋅ When S-pattern acceleration/deceleration D is set,
Start signal ON acceleration/deceleration time will become longer as
follows:
Actual acceleration time T2 = set acceleration time T1 +
(S-pattern time at a start of acceleration+S-pattern
time at a completion of acceleration) /2
Actual deceleration time T2 = set deceleration time T1 +
(S-pattern time at a start of deceleration+S-pattern
time at a completion of deceleration) /2
Set acceleration/deceleration time T1 indicates the actual
time taken for linear acceleration/deceleration calculated
based on the Pr. 7, Pr. 8, Pr. 44, Pr. 45, Pr. 110 and Pr. 111
setting.
CAUTION
⋅ Even if the start signal is turned off during acceleration, the
inverter will not decelerate immediately to avoid sudden
frequency change. (Likewise, the inverter will not
immediately accelerate when deceleration is changed to
reacceleration by turning the start signal on during
deceleration, etc.)

Pr. 517 ⋅ For example, the actual acceleration time when starting the
Acceleration/deceleration
reference frequency (Pr. 20)
inverter with an S-pattern acceleration/deceleration pattern
D selected for a stop to 60Hz in the parameter initial setting
Pr. 517/2
is as shown left:
Set acceleration time T1 = (Set frequency - Pr. 13) × Pr. 7/Pr. 20
Pr. 516
Actual acceleration time T2 = set acceleration time T1 + (Pr. 516
+ Pr. 517) /2
Linear acceleration
Pr. 516/2
Slope of Pr. 7, Pr. 44, Pr. 110
Therefore,
Set acceleration time T1 = (60Hz - 0.5Hz) × 5s/60Hz
4.96s (actual acceleration time
Starting frequency at linear acceleration)
T1 (Pr. 13) Actual acceleration time T2 = 4.96s + (0.1s + 0.1s)/2
= 5.06s (acceleration time at
T2 S-pattern acceleration)

⋅ The actual deceleration time when stopping the inverter

Acceleration/ Pr. 518
deceleration
with an S-pattern acceleration/deceleration D selected from
reference running frequency to 0 Hz in the parameter initial setting is
frequency Linear deceleration as shown left:
(Pr. 20) Pr. 8, Pr. 45 Pr. 111
Pr. 518/2 Set deceleration time T1 = (Set frequency - Pr. 10*) × Pr. 8/Pr. 20
Actual deceleration time T2 = Set deceleration time T1 + (Pr. 518
Pr. 519 + Pr. 519) /2
* Pr.10 .... DC injection brake operation frequency

Pr. 519/2 Therefore,

Set deceleration time T1 = (60Hz - 3Hz) × 5s/60Hz
DC injection 4.75s (actual deceleration time
brake operation at linear deceleration)
T1 frequency Actual deceleration time T2 = 4.75s + (0.1s + 0.1s)/2
(Pr. 10) = 4.85s (deceleration time at
T2 S-pattern deceleration)

160
 Setting of acceleration/deceleration time
and acceleration/deceleration pattern

CAUTION
⋅ When the acceleration/deceleration time (Pr. 7, Pr. 8, etc.) setting under Real sensorless vector control or vector control is 0s,
the S-pattern acceleration/deceleration A to D (Pr. 29 = "1, 2, 4, 5") is linear acceleration/deceleration.
⋅ Set linear acceleration/deceleration (Pr. 29 = "0 (initial value)") when torque control is exercised under Real sensorless vector
control or vector control. When acceleration/deceleration patterns other than the linear acceleration/deceleration are selected,
the protective function of the inverter may function.

♦ Parameters referred to ♦
Pr. 3 Base frequency Refer to page 142
Pr. 7 Acceleration time, Pr. 8 Deceleration time, Pr. 20 Acceleration/deceleration reference frequency Refer to page 155
Pr. 10 DC injection brake operation frequency Refer to page 185
Pr. 178 to Pr. 189 ( Input terminal function selection ) Refer to page 207

4
PARAMETERS

161
Setting of acceleration/deceleration time
and acceleration/deceleration pattern

4.12.4 Shortest acceleration/deceleration and optimum acceleration/deceleration

(automatic acceleration/deceleration) (Pr. 61 to Pr. 63, Pr. 292, Pr. 293)
The inverter operates in the same conditions as when appropriate values are set in each parameter even if
acceleration/deceleration time and V/F pattern are not set. This function is useful when you just want to operate,
etc. without fine parameter setting.

Parameter Initial
Number Name Value Setting Range Description
Set the reference current during shortest/ optimum
0 to 500A
61 Reference current 9999 acceleration/deceleration.
9999 Rated inverter output current value is reference
Set the limit value/optimum value during shortest/optimum
0 to 220%
Reference value acceleration.
62 9999
at acceleration Shortest acceleration/deceleration: 150% is a limit value
9999
Optimum acceleration/deceleration: 100% is an optimum value
Set the limit value/optimum value during shortest/optimum
0 to 220%
Reference value deceleration.
63 9999
at deceleration Shortest acceleration/deceleration: 150% is a limit value
9999
Optimum acceleration/deceleration: 100% is an optimum value
0 Normal mode
Automatic 3 Optimum acceleration/deceleration mode
292 acceleration/ 0 5, 6 Elevator mode1, 2 (refer to page 146)
deceleration 7, 8 Brake sequence mode 1, 2 (Refer to page 193.)
11 Shortest acceleration/deceleration mode
Both acceleration and deceleration are made in the shortest/
0
Acceleration/ optimum acceleration/deceleration mode
deceleration Only acceleration is made in the shortest/optimum
293 0 1
separate acceleration/deceleration mode
selection Only deceleration is made in the shortest/optimum
2
acceleration/deceleration mode

(1) Shortest acceleration/deceleration mode (Pr. 292 = "1, 11", Pr. 293)
⋅ Set when you want to accelerate/decelerate the motor for the shortest time. It is desired to make acceleration/
deceleration in a shorter time for a machine tool etc. but the design values of machine constants are unknown.
⋅ Acceleration/deceleration speed is automatically adjusted at a start of acceleration/deceleration so that
acceleration/deceleration is made with the maximum torque the inverter can output according to the setting value
of Pr. 7 Acceleration time and Pr. 8 Deceleration time. (The setting values of Pr. 7 and Pr. 8 are not changed)
⋅ Either acceleration or deceleration can be made in the shortest time using Pr. 293 Acceleration/deceleration separate
selection.
When the setting value is "0" (initial value), both acceleration and deceleration can be made in the shortest time.
⋅ When the shortest acceleration/deceleration mode is selected under V/F control and Advanced magnetic flux
vector control, the stall prevention operation level during acceleration/deceleration becomes 150% (adjustable
using Pr. 61 to Pr. 63 ). The setting of Pr. 22 Stall prevention operation level and stall level by analog input are used
only during a constant speed operation.
Adjustment using Pr. 61 to Pr. 63 can not be made under Real sensorless vector control or vector control since
torque limit level (Pr. 22 etc.) is used during acceleration/deceleration.
⋅ It is inappropriate to use for the following applications.
a)Machine with a large inertia such as a fan (more than 10 times). Since stall prevention operation will be
activated for a long time, this type of machine may be brought to an alarm stop due to motor overloading, etc. .
b)It is desired to always perform operation with a constant acceleration/deceleration time.
REMARKS
⋅ Even if automatic acceleration/deceleration mode has been selected, inputting the JOG signal (jog operation), RT signal
(second function selection) or X9 signal (third function selection) during an inverter stop will switch to the normal operation and
give priority to jog operation, second function selection or third function selection. Note that JOG and RT signal input is invalid
even if JOG signal and RT signal are input during operation in automatic acceleration/deceleration mode.
⋅ Since acceleration/deceleration is made with the stall prevention operation being activated, the acceleration/deceleration speed
always varies according to the load conditions.
⋅ Note that when proper values are set in Pr. 7 and Pr. 8 , acceleration/deceleration time may be shorter than selecting shortest
acceleration/deceleration mode.

162
 Setting of acceleration/deceleration time
and acceleration/deceleration pattern

(2) Optimum acceleration/deceleration mode (Pr. 292 = "3", Pr. 293)

⋅ The optimum operation within the rating range where the inverter can be continuously used regardless of the
inverter capability is performed.
Automatically set torque boost and acceleration/deceleration time so that the average current during acceleration/
deceleration is the rated current by the self-learning of the inverter.
It is appropriate for applications such as automatic transfer machine, etc. which is small in load change and is
operated in a predetermined pattern.
⋅ At the initial time when the optimum acceleration/deceleration mode has been selected, operation is performed at
the values set in Pr. 0 Torque boost, Pr. 7 Acceleration time and Pr. 8 Deceleration time. After operation, the average
current and peak current are calculated from the motor current during acceleration/deceleration. These values are
compared with the reference current (initial value is rated inverter current) and calculated, then more appropriate
values are set in Pr. 0, Pr. 7 and Pr. 8 .
After that, operation is performed under the conditions of Pr. 0, Pr. 7 and Pr. 8 set, and more appropriate values are
calculated.
Note that the Pr. 0 value will not change under Advanced magnetic flux vector control, Real sensorless vector
control or vector control.
⋅ When overvoltage fault (E.OV3) occurs at deceleration, the Pr. 8 setting value becomes 1.4 times larger.
⋅ Storage of parameters
The optimum values of Pr. 0, Pr. 7 and Pr. 8 are written to both the Number of Pr. 0, Pr. 7, Pr. 8
parameter RAM and EEPROM only three times of acceleration/ Optimum Optimum
EEPROM RAM
deceleration after the optimum acceleration/deceleration mode Value Conditions
value value
has been selected or after the power is switched on or the Changes
inverter is reset. At of after the fourth attempt, they are not 1 to 3 times Updated Updated Updated
stored into EEPROM. Hence, after power-on or inverter reset, Unchanged
4 or more
the values changed at the third time are valid. Note that the from third Updated Updated
times
value
values changed at the fourth or later time are calculated to
optimum and the values of Pr. 0, Pr. 7 and Pr. 8 are set to RAM,
the values can be stored into EEPROM by reading and writing
the values with the operation panel and parameter unit.
⋅ Either acceleration or deceleration can be made in the optimum acceleration/deceleration mode using Pr. 293
Acceleration/deceleration separate selection.
When the setting value is "0" (initial value), both acceleration and deceleration are made in the optimum
acceleration/deceleration mode.
⋅ It is inappropriate for machines which change in load and operation conditions.
Optimum values are saved for the next operation. If the operating condition changes before the next operation, a
fault such as overcurrent trip or a lack of acceleration/deceleration may occur.

REMARKS
⋅ If shortest acceleration/deceleration mode has been selected, inputting the JOG signal (jog operation), RT signal (second
function selection) or X9 signal (third function selection) during an inverter stop will switch to the normal operation and give
priority to jog operation, second function selection or third function selection. Note that JOG and RT signal input is invalid even
if JOG signal and RT signal are input during operation in shortest/optimum acceleration/deceleration mode.
⋅ Because of the learning system, this mode is not valid at the first operation after the optimum acceleration/deceleration mode is
set.
⋅ The optimum value are operated on only when acceleration is made from a stop to 30Hz or more or when deceleration is made 4
from 30Hz or more to stop.
⋅ When the motor is not connected or output current is less than 5% of the rated inverter current, optimum acceleration/
PARAMETERS

deceleration mode will not function.

⋅ Even when the optimum acceleration/deceleration mode is selected and Pr. 293 = "1" (acceleration only for the optimum
acceleration/deceleration mode), overvoltage fault (E.OV3) occurrence at deceleration makes the Pr. 8 setting value be set
again longer.

163
Setting of acceleration/deceleration time
and acceleration/deceleration pattern

(3) Adjustment of shortest and optimum acceleration/deceleration mode (Pr. 61 to Pr. 63)
⋅ By setting the adjustment parameters Pr. 61 to Pr. 63, the application range can be made wider.
Parameter Name Setting Description
Number Range
For example, when the motor and inverter are different in capacity, set the
rated motor current value.
Shortest acceleration/deceleration: Set reference current (A) of the stall
0 to 500A
Reference prevention operation level during acceleration/deceleration
61
current Optimum acceleration/deceleration: Set reference current (A) of the
optimum current during acceleration/deceleration
9999
The rated inverter current is defined as reference.
(initial value)
Set when it is desired to change the reference level of acceleration and
deceleration.
Shortest acceleration/deceleration: Set the stall prevention operation level
Reference value 0 to 220%
(ratio to the current value of Pr. 61 ) during acceleration/deceleration.
62 at acceleration Optimum acceleration/deceleration: Set the optimum current level (ratio to
63 Reference value the current value of Pr. 61 ) during acceleration/deceleration.
at deceleration
Shortest acceleration/deceleration: The 150% value during shortest
9999
acceleration/deceleration is judged as the stall prevention operation level.
(initial value)
Optimum acceleration/deceleration: 100% is the optimum value

REMARKS
⋅ Pr. 61 to Pr. 63 are invalid when Real sensorless vector control or vector control is selected in the shortest acceleration/
deceleration mode.
⋅ Since the Pr. 61 to Pr. 63 settings automatically return to the initial value (9999) if the Pr. 292 setting is changed, set Pr. 292 first
when you need to set Pr. 61 to Pr. 63.
♦ Parameters referred to ♦
Pr. 0 Torque boost Refer to page 129
Pr. 7 Acceleration time, Pr. 8 Deceleration time Refer to page 155
Pr. 22 Stall prevention operation level Refer to page 135
Pr. 22 Torque limit level Refer to page 83

164
 Selection and protection of a motor

4.13 Selection and protection of a motor

Purpose Parameter that must be Set Refer to Page
Motor protection from overheat Electronic thermal O/L relay Pr. 9, Pr. 51 165
Use the constant torque motor Applied motor Pr. 71 169
The motor performance can be
Pr. 82 to Pr. 84,
maximized for operation in magnetic Offline auto tuning 171
Pr. 90 to Pr. 94, Pr. 96
flux vector control method
High accuracy operation unaffected
by the motor temperature and stable
Online auto tuning Pr. 95, Pr. 574 181
operation with high torque down to
ultra low speed are performed

4.13.1 Motor protection from overheat (Electronic thermal relay function) (Pr. 9, Pr. 51)

Set the current of the electronic thermal O/L relay to protect the motor from overheat. This feature provides the
optimum protective characteristics, including reduced motor cooling capability, at low speed.

Parameter
Name Initial Value Setting Range Description
Number
Electronic thermal Rated inverter
9 0 to 500A Set the rated motor current.
O/L relay current
Made valid when the RT signal is ON.
Second electronic 0 to 500A
51 9999 Set the rated motor current.
thermal O/L relay *
9999 Second electronic thermal O/L relay invalid
* When parameter is read using the FR-PU04, a parameter name different from an actual parameter is displayed.

(1) Electronic thermal relay function operation characteristic (THM)

[Electronic thermal relay function operation characteristic (E.THM)] This function detects the overload (overheat) of the
Pr. 9 = 50% setting of Pr. 9 = 100% setting motor, stops the operation of the inverter's output
inverter rating*1.2 of inverter rating*2 transistor, and trips. (The operation characteristic is
shown on the left)
Operation time (min)
(min) unit display in

70
30Hz
30Hz or more*3
⋅ Set the rated current [A] of the motor in Pr. 9. (If the
this range

20Hz
or more*3
10Hz
Operation range
Range on the right of
motor has both 50Hz and 60Hz rating and the Pr. 3
20Hz
60
10Hz characteristic curve Base frequency is set to 60Hz, set the 1.1 times of the
6Hz
6Hz
Non-operation range
Range on the left of
60Hz rated motor current.)
0.5Hz
50 0.5Hz characteristic curve ⋅ Set "0" in Pr. 9 when you do not want to activate the
Characteristic when electronic thermal relay function, e.g. when using an
electronic thermal relay external thermal relay with the motor. (Note that the
240
(s) unit display in this range

function for motor output transistor protection of the inverter functions

protection is turned off
(E.THT).)
Operation time (s)

(When Pr. 9 setting is 0(A))

180 ⋅ When using the Mitsubishi constant-torque motor
1) Set "1" or any of "13" to "18", "50", "53", "54" in Pr. 71.
120 (This provides a 100% continuous torque characteristic
Electronic thermal relay in the low-speed range.)
60 function for transistor 2) Set the rated current of the motor in Pr. 9.
protection
*1 When 50% of the rated inverter current (current value) is set in Pr. 9
4
52.5% 105%
*2 The % value denotes the percentage to the rated inverter current. It
50 100 150 is not the percentage to the rated motor current.
Ratio of the motor current to
PARAMETERS

Pr. 9 Electronic thermal relay function (%) *3 When you set the electronic thermal relay function dedicated to the
Mitsubishi constant-torque motor, this characteristic curve applies
to operation at 6Hz or higher.

CAUTION
⋅ Fault by electronic thermal relay function is reset by inverter power reset and reset signal input. Avoid unnecessary reset and
power-OFF.
⋅ When multiple motors are operated by a single inverter, protection cannot be provided by the electronic thermal relay function.
Install an external thermal relay to each motor.
⋅ When the difference between the inverter and motor capacities is large and the setting is small, the protective characteristics of
the electronic thermal relay function will be deteriorated. In this case, use an external thermal relay.
⋅ A special motor cannot be protected by the electronic thermal relay function. Use the external thermal relay.
⋅ Since a thermal relay protector is built in a motor dedicated for vector control (SF-V5RU), set "0" in Pr. 9 to use the motor.

165
Selection and protection of a motor

(2) Electronic thermal relay function operation characteristic (THT)

Electronic thermal relay function (transistor protection thermal) operation characteristics of the inverter when the ratio
of the motor current to the inverter rated current is presented as transverse is shown. Transverse is calculated as
follows: (motor current [A]/inverter rated current [A]) × 100 [%].
Optimum Conditions Electronic thermal relay function operation characteristic (THT)

150

120

Operation time (S)

90

Running frequency : 1Hz or more 60

Carrier frequency: 2kHz

30

0
0 25 50 75 100 125 150 175 200

Ratio of the motor current

to the inverter rated current (%)

15

12
Operation time (S)

Running frequency : 1Hz or less 6

Carrier frequency: 2kHz

0
0 25 50 75 100 125 150 175 200
Ratio of the motor current
to the inverter rated current (%)

CAUTION
⋅ Fault by electronic thermal relay function is reset by inverter power reset and reset signal input. Avoid unnecessary reset and
power-off.
⋅ The operation time of the transistor protection thermal relay shortens when the Pr. 72 PWM frequency selection setting increases.

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 Selection and protection of a motor

(3) Set multiple electronic thermal relay functions (Pr. 51)

Use this function when rotating two motors of different rated currents individually by a
single inverter. (When rotating two motors together, use external thermal relays.) MC
⋅ Set the rated current of the second motor in Pr. 51. IM
⋅ When the RT signal is ON, thermal protection is provided based on the Pr. 51 setting.
MC
RT = OFF RT = ON U
Pr. 450 Pr. 9 Pr. 51 V IM
Second applied Electronic thermal Second electronic thermal O/L First Second First Second W
motor O/L relay relay motor motor motor motor
RT
9999 × × × ×
SD
9999 0 0 × × × ×
0.01 to 500 (0.1 to 3600) × ×
9999 × ×
Other than
9999 0 × ×
0
0.01 to 500 (0.1 to 3600)
9999 × × × ×
Other than
0 0 × × × ×
9999
0.01 to 500 (0.1 to 3600) × ×
9999
Other than Other than
0 × ×
9999 0
0.01 to 500 (0.1 to 3600)
.... Output current value is used to perform integration processing.
.... Output current is assumed as 0A to perform integration processing. (cooling processing)
× ..... Electronic thermal relay function is not activated.

REMARKS
⋅ The RT signal acts as the second function selection signal and makes the other second
functions valid. (Refer to page 211)
⋅ The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178
to Pr. 189 (input terminal function selection), you can assign the RT signal to the other terminal.

(4) Electronic thermal relay function prealarm (TH) and alarm signal (THP signal)
100%: Electronic thermal relay function alarm operation value ⋅ The alarm signal (THP) is output and an electronic thermal
prealarm (TH) is displayed when the electronic thermal relay
Electronic thermal 100%
relay function 85% function cumulative value reaches 85% of the level set in Pr. 9
operation level or Pr. 51. If it reaches 100% of the Pr. 9 Electronic thermal O/L
relay setting, electronic thermal relay function protection (E.
Electronic thermal O/L THM/E.THT) occurs.
relay alarm (THP) OFF ON ON
Time ⋅ The inverter does not trip even when the alarm signal (THP) is
output.
⋅ For the terminal used for the THP signal output, assign the
function by setting "8" (positive logic) or "108" (negative logic) in
any of Pr. 190 to Pr. 196 (output terminal function selection).

CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set 4
parameters after confirming the function of each terminal.

(5) External thermal relay input (OH signal)

PARAMETERS

⋅ To protect the motor against overheat, use the OH signal when using an external
Thermal relay protector thermal relay or the built-in thermal protector of the motor.
Inverter
Motor ⋅ When the thermal relay operates, the inverter trips and outputs the fault signal
U
V IM (E.OHT).
W ⋅ For the terminal used for OH signal input, assign the function by setting "7" in any
OH
SD of Pr. 178 to Pr. 189 (input terminal function selection)
External thermal relay input
connection example

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Selection and protection of a motor

⋅ A thermal protector is provided for a vector control dedicated motor (SF-V5RU).

Inverter SF-V5RU * Assign OH (external thermal input) signal to the
* CS terminal. CS(OH)
PC
2W1kΩ G1 (Pr. 186 = "7") PC
OH Control circuit
SD
G2 Connect a 2W1kΩ resistor between the terminal terminal block
PC and CS(OH).
Install the resistor pushing it against the bottom
Connection of the thermal
part of the terminal block so as to avoid a contact
protector of the SF-V5RU Resistor (2W1kΩ)
with other cables.
Refer to page 207 for details of Pr. 186 CS terminal
function selection.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

(6) PTC thermistor input (PTC signal)

Inverter
Inverter
Motor
U
AU V AU
PTC W
PTC
PTC
SD

PTC thermistor input connection example

AU/PTC switchover switch
Factory-set to "AU".
Set to the "PTC" position to
validate the PTC signal input.
Built-in PTC thermistor of the motor can be input to the PTC signal (AU terminal).
⋅ For the terminal used for PTC signal input, assign the function by setting "63" in Pr. 184 AU terminal function selection
and also set the AU/PTC switchover switch to the PTC terminal function. (The initial setting is the AU terminal
function.)
⋅ If a motor overheat state is detected for more than 10s according to the input from the PTC thermistor, the inverter
trips and outputs the PTC thermal fault signal (E.PTC).
⋅ The input specifications of the PTC thermistor Motor Temperature PTC Thermistor Resistance Value (Ω)
are shown on the right. Normal 0 to 500
Boundary 500 to 4k
Overheat 4k or higher

CAUTION
⋅ When the PTC signal was not assigned to Pr. 184 and the AU/PTC switchover switch was set to the PTC terminal function, the
function assigned to the AU terminal is always OFF. Reversely, when the PTC signal was assigned to Pr. 184 and the AU/PTC
switchover switch was set to the AU terminal function, a PTC thermal fault (E.PTC) occurs since the function is always in a
motor overheat state.
⋅ When you want to input a current, assign the AU signal to the other signal.
⋅ When terminal assignment is changed, the other functions may be affected. Set parameters after confirming the function of the
AU terminal.

♦ Parameters referred to ♦
Pr. 71 Applied motor Refer to page 169
Pr. 72 PWM frequency selection Refer to page 261
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
Specifications of the AU terminal Refer to page 22

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 Selection and protection of a motor

4.13.2 Applied motor (Pr. 71, Pr. 450)

Setting of the used motor selects the thermal characteristic appropriate for the motor.
Setting is necessary when using a constant-torque motor. Thermal characteristic of the electronic thermal relay
function suitable for the motor is set.
When Advanced magnetic flux vector, Real sensorless vector control or vector control is selected, the motor
constants (SF-JR, SF-HR, SF-JRCA, SF-HRCA, SF-V5RU (1500r/min series)) necessary for control are
selected as well.

Parameter
Name Initial Value Setting Range Description
Number
0 to 8, 13 to 18, 30, Selecting the standard motor or constant-
71 Applied motor 0 33, 34, 40, 43, 44, torque motor sets the corresponding motor
50, 53, 54 thermal characteristic.
0 to 8, 13 to 18, 30,
Set when using the second motor.
33, 34, 40, 43, 44,
450 Second applied motor 9999 (same specifications as Pr. 71)
50, 53, 54
9999 Not function

(1) Set the motor to be used

Refer to the following list and set this parameter according to the motor used.
Pr. 71 (Pr. 450) Setting Motor ({ : used motor)
Thermal Characteristic of the Electronic Thermal Relay
Function Standard Constant torque Vector
Pr. 71 Pr. 450
(SF-JR etc.) (SF-JRCA etc.) (SF-V5RU)
0
Thermal characteristics of a standard motor
(Pr. 71 initial value)
1 Thermal characteristics of the Mitsubishi constant-torque motor
Thermal characteristics of a standard motor
2
Adjustable 5 points V/F (Refer to page 147)
30 Vector control dedicated motor SF-V5RU (1500r/min series)
Thermal characteristic of Mitsubishi high efficiency motor SF-
40 *1
HR
Thermal characteristic of Mitsubishi constant-torque motor SF-
50 *2
HRCA
3 Standard motor
Constant-torque motor
Vector control dedicated
13 *3
motor SF-V5RU (except for
1500 r/min series).
Vector control dedicated Select "offline auto tuning
33 motor SF-V5RU (1500r/min setting"
series), SF-THY
Mitsubishi High efficiency motor
43 *1
(SF-HR)
Mitsubishi constant-torque
53 *2
motor (SF-HRCA)
4 Standard motor
Constant-torque motor
Vector control dedicated
14 *3
motor SF-V5RU (except for
1500 r/min series).
Vector control dedicated Auto tuning data can be read,
34 motor SF-V5RU (1500r/min changed, and set
series), SF-THY 4
Mitsubishi High efficiency motor
44 *1
(SF-HR)
Mitsubishi constant-torque
PARAMETERS

54 *2
motor (SF-HRCA)
5 Standard motor Star Direct input of
15 Constant-torque motor connection motor
6 Standard motor Delta constants is
16 Constant-torque motor connection enabled
7 Standard motor Star Motor
17 Constant-torque motor connection constants
8 Standard motor direct input
Delta +
18 Constant-torque motor connection offline auto
tuning
9999
— (initial Without second applied motor
value)
*1 Motor constants of Mitsubishi high efficiency motor SF-HR.
*2 Motor constants of Mitsubishi constant-torque motor SF-HRCA.
*3 Select this setting for vector control dedicated motor (SF-V5RU (except for 1500 r/min series).

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Selection and protection of a motor

REMARKS
⋅ When performing offline auto tuning, set "3, 7, 8, 13, 17, 18, 33, 43, 53" in Pr. 71.
(Refer to page 171 for offline auto tuning)
⋅ For the 5.5K and 7.5K, the Pr. 0 Torque boost and Pr. 12 DC injection brake operation voltage settings are automatically changed
according to the Pr. 71 setting as follows.

Standard Motor Setting Constant Torque Motor Setting

Pr. 71
0, 2, 3 to 8, 40, 43, 44 1, 13 to 18, 50, 53, 54
Pr. 0 3% 2%
Pr. 12 4% 2%

(2) Use two types of motors (Pr. 450)

⋅ Set Pr. 450 Second applied motor to use two types of motors with one inverter.
⋅ When "9999" (initial value) is set, no function is selected.
⋅ When Pr. 450 ≠ 9999, turning the RT signal on makes the following parameter valid.
RT Signal RT Signal RT Signal RT Signal
Function ON (second OFF (first Function ON (second OFF (first
motor) motor) motor) motor)
Applied motor Pr. 450 Pr. 71 Motor constant (R2) Pr. 459 Pr. 91
Control method selection Pr. 451 Pr. 800 Motor constant (L1) Pr. 460 Pr. 92
Motor capacity Pr. 453 Pr. 80 Motor constant (L2) Pr. 461 Pr. 93
Number of motor poles Pr. 454 Pr. 81 Motor constant (X) Pr. 462 Pr. 94
Motor excitation current Pr. 455 Pr. 82 Auto tuning setting/status Pr. 463 Pr. 96
Rated motor voltage Pr. 456 Pr. 83 Online auto tuning selection Pr. 574 Pr. 95
Rated motor frequency Pr. 457 Pr. 84 Torque current Pr. 860 Pr. 859
Motor constant (R1) Pr. 458 Pr. 90

REMARKS
⋅ The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 211)
⋅ The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

CAUTION
Set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.

♦ Parameters referred to ♦
Pr. 0 Torque boost Refer to page 129
Pr. 12 DC injection brake operation voltage Refer to page 185
Pr. 80 Motor capacity, Pr. 81 Number of motor poles, Pr. 453 Second motor capacity, Pr. 454 Number of second motor poles Refer to page 131
Pr. 82 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 455 to Pr. 463, Pr. 859, Pr. 860 (Motor constant) Refer to page 171
Pr. 95 Online auto tuning selection, Pr. 574 Second motor online auto tuning Refer to page 181
Pr. 451 Second motor control method selection, Pr. 800 Control method selection Refer to page 75
Pr. 100 to Pr. 109 (Adjustable 5 points V/F) Refer to page 147

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 Selection and protection of a motor

4.13.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450,
Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860) Magnetic flux Sensorless Vector

The motor performance can be maximized with offline auto tuning.

• What is offline auto tuning?
When performing Advanced magnetic flux vector control, Real sensorless vector control or vector control, the
motor can be run with the optimum operating characteristics by automatically measuring the motor constants
(offline auto tuning) even when each motor constants differs, other manufacturer's motor is used, or the wiring
length is long. (30m or longer as reference)

Parameter Initial
Name Setting Range Description
Number Value
0 to 8, 13 to 18, By selecting a standard motor or constant-torque
71 Applied motor 0 30, 33, 34, 40, motor, thermal characteristic and motor constants
43, 44, 50, 53, 54 of each motor are set.
0.4 to 55kW Set the applied motor capacity.
80 Motor capacity 9999
9999 V/F control
2, 4, 6, 8, 10 Set the number of motor poles.
X18 signal-ON:V/F control
81 Number of motor poles 9999 12, 14, 16, 18, 20
Set 10 + number of motor poles.
9999 V/F control
Tuning data
0 to 500A (The value measured by offline auto tuning is
automatically set.)
82 Motor excitation current 9999
Use the Mitsubishi motor (SF-JR, SF-HR, SF-
9999 JRCA, SF-HRCA, SF-V5RU (1500r/min series))
constants
Set the rated motor voltage(V).
83 Rated motor voltage 200/400V * 0 to 1000V * The initial value differs according to the voltage
level. (200V/400V)
84 Rated motor frequency 60Hz 10 to 120Hz Set the rated motor frequency (Hz).
90 Motor constant (R1) 9999 0 to 50Ω, 9999
91 Motor constant (R1) 9999 0 to 50Ω, 9999
0 to 50Ω, Tuning data
92 Motor constant (L1) 9999 (0 to 1000mH), (The value measured by offline auto tuning is
9999 automatically set.)
0 to 50Ω 9999: Use the Mitsubishi motor (SF-JR, SF-HR,
93 Motor constant (L2) 9999 (0 to 1000mH), SF-JRCA, SF-HRCA, SF-V5RU (1500r/min series))
9999 constants
0 to 500Ω
94 Motor constant (X) 9999
(0 to 100%), 9999
0 Offline auto tuning is not performed
Auto tuning setting/ Offline auto tuning is performed without motor
96 0 1
status running
101 Offline auto tuning is performed with motor running
0 to 8, 13 to 18,
450 Second applied motor 9999
30, 33, 34, 40,
Set when using the second motor.
(same specifications as Pr. 71)
4
43, 44, 50, 53, 54
9999 Not function
PARAMETERS

0.4 to 55kW Set the capacity of the second motor.

453 Second motor capacity 9999
9999 V/F control
Number of second motor 2, 4, 6, 8, 10 Set the number of poles of the second motor.
454 9999
poles 9999 V/F control
Tuning data of the second motor
0 to 500A (The value measured by offline auto tuning is
Second motor excitation automatically set.)
455 9999
current Use the Mitsubishi motor (SF-JR, SF-HR, SF-
9999 JRCA, SF-HRCA, SF-V5RU (1500r/min series))
constants
Rated second motor Set the rated voltage (V) of the second motor.
456 200/400V * 0 to 1000V * The initial value differs according to the voltage
voltage level. (200V/400V)
Rated second motor Set the rated motor frequency (Hz) of the second
457 60Hz 10 to 120Hz
frequency motor.

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Selection and protection of a motor

Parameter Initial
Name Setting Range Description
Number Value
Second motor constant
458 9999 0 to 50Ω, 9999
(R1)
Second motor constant
459 9999 0 to 50Ω, 9999
(R2) Tuning data of the second motor
0 to 50Ω (The value measured by offline auto tuning is
Second motor constant automatically set.)
460 9999 (0 to 1000mH),
(L1) 9999 9999: Use the Mitsubishi motor (SF-JR, SF-HR,
0 to 50Ω SF-JRCA, SF-HRCA, SF-V5RU (1500r/min series))
Second motor constant constants
461 9999 (0 to 1000mH),
(L2) 9999
Second motor constant 0 to 500Ω
462 9999
(X) (0 to 100%), 9999
0 Second motor auto tuning is not performed
Second motor auto Offline auto tuning is performed without second
1
463 0 motor running
tuning setting/status
Offline auto tuning is performed with second motor
101
running
Tuning data unit 0 Internal data converted value
684 0
switchover 1 Displayed in "A, Ω, mH, %"
Tuning data
0 to 500A (The value measured by offline auto tuning is
automatically set.)
859 Torque current 9999
Use the Mitsubishi motor (SF-JR, SF-HR, SF-
9999 JRCA, SF-HRCA, SF-V5RU (1500r/min series))
constants
Tuning data of the second motor
0 to 500A (The value measured by offline auto tuning is
Second motor torque automatically set.)
860 9999
current Use the Mitsubishi motor (SF-JR, SF-HR, SF-
9999 JRCA, SF-HRCA, SF-V5RU (1500r/min series))
constants

POINT
· This function is valid only when a value other than "9999" is set in Pr. 80 and Pr. 81 and Advanced magnetic flux
vector control, Real sensorless vector control or vector control is selected.
· You can copy the offline auto tuning data (motor constants) to another inverter with the PU (FR-DU07/FR-PU07).
· Even when motors (other manufacturer's motor, SF-JRC, etc.) other than Mitsubishi standard motor (SF-JR
3.7kW or higher), high efficiency motor (SF-HR 3.7kW or higher), Mitsubishi constant-torque motor (SF-JRCA 4P,
SF-HRCA 3.7kW or higher) and vector control dedicated motor (SF-V5RU (1500r/min series)) are used or the
wiring length is long (30m or longer as reference), using the offline auto tuning function runs the motor with the
optimum operating characteristics.
· Tuning is enabled even when a load is connected to the motor. (As the load is lighter, tuning accuracy is higher.
Tuning accuracy does not change even if the inertia is large.)
· For the offline auto tuning, you can select either the motor non-rotation mode (Pr. 96 = "1") or rotation mode (Pr. 96
= "101").
· The rotation mode has higher tuning accuracy than the non-rotation mode.
· Reading/writing/copy of motor constants tuned by offline auto tuning are enabled.
· The offline auto tuning status can be monitored with the PU (FR-DU07/FR-PU07/FR-PU04).
· Do not use an inverter with a surge voltage suppression filter (FR-ASF-H) connected between the inverter and motor.

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 Selection and protection of a motor

(1) Before performing offline auto tuning

Check the following before performing offline auto tuning.
· Make sure Advanced magnetic flux vector control (Pr. 80, Pr. 81), Real sensorless vector control or vector control
(Pr. 800) is selected.
· A motor should be connected. Note that the motor should be at a stop at a tuning start.
· The motor capacity should be equal to or one rank lower than the inverter capacity.
· Motors such as high-slip motor, high-speed motor and special motor cannot be tuned. (The maximum frequency is
120Hz.)
· Even if tuning is performed without motor running (Pr. 96 Auto tuning setting/status = "1"), the motor may run slightly.
Therefore, fix the motor securely with a mechanical brake, or before tuning, make sure that there will be no
problem in safety if the motor runs. (Caution is required especially in vertical lift applications). Note that if the motor
runs slightly, tuning performance is unaffected.
· Note the following when selecting offline auto tuning performed with motor running (Pr. 96 Auto tuning setting/status =
"101").
Torque is not enough during tuning.
The motor may be run at nearly its rated speed.
The mechanical brake is open.
No external force is applied to rotate the motor.
· Offline auto tuning will not be performed properly if it is performed with a surge voltage suppression filter (FR-ASF-
H) connected between the inverter and motor. Remove it before starting tuning.
· When exercising vector control, use the encoder that is coupled directly to the motor shaft without looseness.
Speed ratio should be 1:1.

4
PARAMETERS

173
Selection and protection of a motor

(2) Setting
1) Select the Advanced magnetic flux vector control, Real sensorless vector control or vector control (refer to page 75).
2) Set "1" or "101" in Pr. 96 Auto tuning setting/status .
· When the setting is "1" . . . . . . . . Tuning is performed without motor running.
It takes approximately 25 to 120s * until tuning is completed.
(Excitation noise is produced during tuning.)
*Tuning time differs according to the inverter capacity and motor type.
· When the setting is "101" . . . . . . Tuning is performed with motor running.
It takes approximately 40s until tuning is completed.
The motor runs at nearly its rated frequency.
3) Set the rated motor current (initial value is rated inverter current) in Pr. 9 Electronic thermal O/L relay (refer to page
165 ).
4) Set the rated voltage of motor (initial value is 200V/400V) in Pr. 83 Rated motor voltage and rated frequency of motor
(initial value is 60Hz) in Pr. 84 Rated motor frequency .
(For a Japanese standard motor, etc. which has both 50Hz and 60Hz rated values, set 200V/60Hz or 400V/60Hz).)
For vector control dedicated motor SF-V5RU1 / V5RU3 / V5RU4, set as the following table.
Pr. 83 Setting Pr. 84 Setting
SF-V5RU1-30kW or less 160V
SF-V5RU1-37kW 170V
33.33Hz
SF-V5RU3-22kW or less 160V
SF-V5RU3-30kW 170V
SF-V5RU4-3.7kW, 7.5kW 150V
16.67Hz
SF-V5RU4-other than the above 160V

REMARKS
· When using the vector control dedicated motor SF-V5RU (1500r/min series) or SF-THY, setting 33 and 34 in Pr. 71 selects
internal constants appropriate for dedicated motors. Therefore, Pr. 83 and Pr. 84 settings are unnecessary.
· Perform auto tuning for SF-V5RU (except for 1500 r/min series) with setting 13 or 14 in Pr. 71 ( For perform auto tuning, set
Pr. 83 and Pr. 84)
· When Pr. 11 DC injection brake operation time = "0" or Pr.12 DC injection brake operation voltage = "0," offline auto tuning is
performed at the initial setting of Pr. 11 or Pr. 12.
· When the positioning control is selected (Pr. 800 = "3" or "5" (when MC signal is OFF)), offline auto tuning is not performed.

5) Set Pr. 71 Applied motor according to the motor used.

Motor Pr. 71 Setting *
SF-JR 3
Mitsubishi standard motor
SF-HR 43
Mitsubishi high efficiency motor
Others 3
SF-JRCA 4P 13
Mitsubishi constant-torque motor SF-HRCA 53
Others (SF-JRC, etc.) 13
SF-V5RU (1500r/min series)
33
Vector control dedicated motor SF-THY
SF-V5RU (except for 1500r/min series) 13
Other manufacturer's
− 3
standard motor
Other manufacturer's
constant-torque motor
− 13

* For other settings of Pr. 71, refer to page 169.

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 Selection and protection of a motor

(3) Execution of tuning

CAUTION
· Before performing tuning, check the monitor display of the operation panel (FR-DU07) or parameter unit (FR-PU04/FR-
PU07) if the inverter is in the state ready for tuning. (Refer to 2) below) When the start command is turned ON under V/F
control, the motor starts.

1)When performing PU operation, press / of the operation panel.

For external operation, turn ON the start command (STF signal or STR signal). Tuning starts.
REMARKS
· The offline auto tuning starts when the inverter start conditions, including the ON status of the MRS signal, are met.

· To force tuning to end, use the MRS or RES signal or press of the operation panel.
(Turning the start signal (STF signal or STR signal) off also ends tuning.)
· During offline auto tuning, only the following I/O signals are valid: (initial value)
· Input signals <valid signal> STOP, OH, MRS, RT, CS, RES, STF, STR
· Output terminal RUN, OL, IPF, FM, AM, A1B1C1
Note that the progress status of offline auto tuning is output in fifteen steps from AM and FM when speed and output
frequency are selected.
· Do not perform ON/OFF switching of the second function selection signal (RT) during execution of offline auto tuning. Auto
tuning is not executed properly.
· Setting offline auto tuning (Pr. 96 Auto tuning setting/status = "1 or 101") will make pre-excitation invalid.

CAUTION
· When selecting offline auto tuning performed with motor running (Pr. 96 Auto tuning setting/status = "101"), caution must be
taken since the motor runs.
· Since the RUN signal turns ON when tuning is started, caution is required especially when a sequence which releases a
mechanical brake by the RUN signal has been designed.
· When executing offline auto tuning, input the run command after switching on the main circuit power (R/L1, S/L2, T/L3) of the
inverter.
· When Pr.79 = "7," turn ON the X12 signal and select the PU operation mode to perform tuning.

2)Monitor is displayed on the operation panel (FR-DU07) and parameter unit (FR-PU07/FR-PU04) during tuning as
below.
Parameter Unit
Operation Panel (FR-DU07) Display
(FR-PU07/FR-PU04) Display
Pr. 96 setting 1 101 1 101

(1) Setting 1 101

STOP PU STOP PU

(2) Tuning in
TUNE 2 TUNE 102
progress
STF FWD PU STF FWD PU 4

TUNE 3 TUNE 103

PARAMETERS

(3) Normal end COMPLETION COMPLETION

STF STOP PU STF STOP PU

Flickering Flickering
(4) Error end (when
the inverter TUNE 9
protective function ERROR
is activated) STF STOP PU

· Reference: Offline auto tuning time (when the initial value is set)
Offline Auto Tuning Setting Time
Approximately 25 to 120s
Non-rotation mode (Pr. 96 = "1")
(Tuning time differs according to the inverter capacity and motor type.)
Approximately 40s
(Offline auto tuning time varies with the acceleration and deceleration time
Rotation mode (Pr. 96 = "101")
settings as indicated below. Offline auto tuning time = acceleration time +
deceleration time + approx. 30s)

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Selection and protection of a motor

3)When offline auto tuning ends, press of the operation panel during PU operation. For external operation, turn
OFF the start signal (STF signal or STR signal).
This operation resets the offline auto tuning and the PU's monitor display returns to the normal indication.
(Without this operation, next operation cannot be started.)
REMARKS
· Do not change the Pr. 96 setting after completion of tuning (3 or 103).
If the Pr. 96 setting is changed, tuning data is invalid.
If the Pr. 96 setting is changed, tuning must be performed again.

4)If offline auto tuning ended in error (see the table below), motor constants are not set.
Perform an inverter reset and restart tuning.
Error Display Error Cause Remedy
Set "1" or "101" in Pr. 96 and perform tuning
8 Forced end
again.
9 Inverter protective function operation Make setting again.
Current limit (stall prevention) function was Increase acceleration/deceleration time.
91
activated. Set "1" in Pr. 156 .
Converter output voltage reached 75% of
92 Check for fluctuation of power supply voltage.
rated value.
Check the motor wiring and make setting
Calculation error
93 again.
A motor is not connected.
Set the rated current of the motor in Pr.9.

5)When tuning is ended forcibly by pressing or turning off the start signal (STF or STR) during tuning, offline
auto tuning does not end properly. (The motor constants have not been set.)
Perform an inverter reset and restart tuning.
6)When using the motor corresponding to the following specifications and conditions, reset Pr.9 Electronic thermal O/L
relay as below after tuning is completed.
a) When the rated power specifications of the motor is 200/220V (400/440V) 60Hz, set 1.1 times rated motor
current value in Pr.9.
b) When performing motor protection from overheat using a PTC thermistor or motor with temperature detector
such as Klixon, set "0" (motor overheat protection by the inverter is invalid) in Pr.9.
CAUTION
· The motor constants measured once in the offline auto tuning are stored as parameters and their data are held until the
offline auto tuning is performed again.
· An instantaneous power failure occurring during tuning will result in a tuning error.
After power is restored, the inverter goes into the normal operation mode. Therefore, when STF (STR) signal is on, the motor
runs in the forward (reverse) rotation.
· Any alarm occurs during tuning is handled as in the ordinary mode. Note that if a fault retry has been set, retry is ignored.
· The set frequency monitor displayed during the offline auto tuning is 0Hz.

CAUTION
Note that the motor may start running suddenly.
When the offline auto tuning is used in vertical lift application, e.g. a lifter, it may drop due to insufficient torque.

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 Selection and protection of a motor

(4) Utilizing or changing offline auto tuning data for use

The data measured in the offline auto tuning can be read and utilized or changed.
<Operating procedure>
1)Set Pr. 71 according to the motor used.
Motor Pr. 71 Setting*
Mitsubishi standard motor SF-JR 4
Mitsubishi high efficiency SF-HR 44
motor Others 4
SF-JRCA 4P 14
Mitsubishi constant-torque
SF-HRCA 54
motor
Others (SF-JRC, etc.) 14
SF-V5RU (1500r/min series)
Vector control dedicated 34
SF-THY
motor
SF-V5RU (except for 1500r/min series) 14
Other manufacturer's
standard motor
− 4

Other manufacturer's
constant torque motor
− 14

*1 For other settings of Pr. 71, refer to page 169.

2)In the parameter setting mode, read the following parameters and set desired values.
Parameter Setting Initial
Name Setting Range
Number Increments Value
82 Motor excitation current 0 to ***, 9999 1 9999
90 Motor constant (R1) 0 to ***, 9999 1 9999
91 Motor constant (R2) 0 to ***, 9999 1 9999
92 Motor constant (L1) 0 to ***, 9999 1 9999
93 Motor constant (L2) 0 to ***, 9999 1 9999
94 Motor constant (X) 0 to ***, 9999 1 9999
859 Torque current 0 to ***, 9999 1 9999

REMARKS
· The display units of the motor constants read using Pr. 684 Tuning data unit switchover can be changed. Note that parameter
values can not be changed.

Pr. 82, Pr. 90, Pr. 91, Pr. 92, Pr. 93, Pr. 94, Pr. 859,
Pr. 684 Setting
Pr. 455 Pr. 458 Pr. 459 Pr. 460 Pr. 461 Pr. 462 Pr. 860
0 Internal data converted value
1 0.01A 0.001Ω 0.001Ω 0.1mH 0.1mH 0.1% 0.01A

· When "9999" is set in Pr. 82, Pr. 90 to Pr. 94, Pr. 455, Pr. 458 to Pr. 462, Pr. 859, Pr. 860, Mitsubishi motor (SF-JR, SF-HR,SF-
JRCA, SF-HRCA, SF-V5RU (1500r/min series)) constants are used.
· As the motor constants measured in the offline auto tuning have been converted into internal data (****), refer to the following
setting example when making setting:
Setting example To slightly increase Pr. 90 value (5%) 4
When Pr. 90 is displayed "2516",
set 2642, i.e. 2516 × 1.05 = 2641.8, in Pr. 90 .
(The value displayed has been converted into a value for internal use. Hence, simple addition of a given
PARAMETERS

value to the displayed value has no significance.)

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Selection and protection of a motor

(5) Method to set the motor constants without using the offline auto tuning data
The Pr. 92 and Pr. 93 motor constants may either be entered in [Ω] or in [mH]. Before starting operation, confirm which
motor constant unit is used.

• To enter the Pr. 92 and Pr. 93 motor constants in [Ω]

<Operating procedure>
1) Set Pr. 71 according to the motor used.
Star Connection Delta Connection
Motor Motor
Standard motor 5 6
Setting
Constant-torque motor 15 16
2) In the parameter setting mode, read the following parameters and set desired values.

Iq = torque current, I100 = rated current, I0 = no load current

Iq = I1002 - I02

Parameters Setting Initial

Name Setting Range
Number Increments Value
Motor excitation current
82 0 to 500A, 9999 0.01A 9999
(no load current)
90 Motor constant (r1) 0 to 50Ω, 9999 0.001Ω 9999
91 Motor constant (r2) 0 to 50Ω, 9999 0.001Ω 9999
92 Motor constant (x1) 0 to 50Ω, 9999 0.001Ω 9999
93 Motor constant (x2) 0 to 50Ω, 9999 0.001Ω 9999
94 Motor constant (xm) 0 to 500Ω, 9999 0.01Ω 9999
859 Torque current 0 to 500A, 9999 0.01A 9999

3)Refer to the following table and set Pr. 83 and Pr. 84 .

Parameter Setting Initial
Name Setting Range
Number Increments Value
83 Rated motor voltage 0 to 1000V 0.1V 200V/400V*
84 Rated motor frequency 10 to 120Hz 0.01Hz 60Hz
* The initial value differs according to the voltage level. (200V/400V)

REMARKS
· When "9999" is set in Pr. 82, Pr. 90 to Pr. 94, Pr. 859, Mitsubishi motor (SF-JR, SF-HR,SF-JRCA, SF-HRCA, SF-V5RU (1500r/min
series)) constants are used.

CAUTION
· If "star connection" is mistaken for "delta connection" or vice versa during setting of Pr. 71, Advanced magnetic flux vector
control, Real sensorless vector control and vector control cannot be exercised properly.

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 Selection and protection of a motor

• To enter the Pr. 92 and Pr. 93 motor constants in [mH]

<Operating procedure>
1) Set Pr. 71 according to the motor used.
Motor Pr.71 Setting*
Mitsubishi standard motor SF-JR 0
Mitsubishi high efficiency
motor SF-HR 40

Mitsubishi constant-torque SF-JRCA 4P 1

motor SF-HRCA 50
Vector control dedicated
SF-V5RU 1500r/min series 30
motor
*1 For other settings of Pr. 71, refer to page 169.
2) In the parameter setting mode, read the following parameters and set desired values.
Calculate the Pr. 94 value from the following formula.

M2
Pr. 94 setting = (1 - ) × 100 (%)
L1 × L2

R1 I1 I2

R1: Primary resistance

R2: Secondary resistance
V M R2/S I1: Primary leakage inductance
I2: Secondary leakage inductance
M: Excitation inductance
S: Slip

L1= I1+ M: Primary inductance

L2= I2+ M: Secondary inductance

Motor equivalent circuit diagram

Parameter Setting Initial

Name Setting Range
Number Increments Value
Motor excitation current
82 0 to 500A, 9999 0.01A 9999
(no load current)
90 Motor constant (R1) 0 to 50Ω, 9999 0.001Ω 9999
91 Motor constant (R2) 0 to 50Ω, 9999 0.001Ω 9999
92 Motor constant (L1) 0 to 1000mH, 9999 0.1mH 9999
93 Motor constant (L2) 0 to 1000mH, 9999 0.1mH 9999
94 Motor constant (X) 0 to 100%, 9999 0.1% 9999
859 Torque current 0 to 500A, 9999 0.01A 9999

3)Refer to the following table and set Pr. 83 and Pr. 84 .

Parameter
Name Setting Range
Setting Initial 4
Number Increments Value
83 Rated motor voltage 0 to 1000V 0.1V 200V/400V*
PARAMETERS

84 Rated motor frequency 10 to 120Hz 0.01Hz 60Hz

* The initial value differs according to the voltage level. (200V/400V)

REMARKS
· When "9999" is set in Pr. 82, Pr. 90 to Pr. 94, Pr. 859, Mitsubishi motor (SF-JR, SF-HR,SF-JRCA, SF-HRCA, SF-V5RU (1500r/
min series)) constants are used.

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Selection and protection of a motor

(6) Tune second applied motor

· When you want to switch two motors with one inverter, set the second motor in Pr. 450 Second applied motor (refer to
page 169). Initial setting is without second applied motor.
· Turning the RT signal on makes the following parameters for the second parameters valid.
RT Signal ON RT Signal OFF
Functions
(second motor) (first motor)
Motor capacity Pr. 453 Pr. 80
Number of motor poles Pr. 454 Pr. 81
Motor excitation current Pr. 455 Pr. 82
Rated motor voltage Pr. 456 Pr. 83
Rated motor frequency Pr. 457 Pr. 84
Motor constant (R1) Pr. 458 Pr. 90
Motor constant (R2) Pr. 459 Pr. 91
Motor constant (L1) Pr. 460 Pr. 92
Motor constant (L2) Pr. 461 Pr. 93
Motor constant (X) Pr. 462 Pr. 94
Auto tuning setting/status Pr. 463 Pr. 96

REMARKS
· The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.

CAUTION
· Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 7 Acceleration time, Pr. 8 Deceleration time Refer to page 155
Pr. 9 Electronic thermal O/L relay Refer to page 165
Pr. 71 Applied motor Refer to page 169
Pr. 80 Motor capacity, Pr. 81 Number of motor poles Refer to page 75
Pr. 95 Online auto tuning selection Refer to page 181
Pr. 156 Stall prevention operation selection Refer to page 135
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
Pr. 800 Control method selection Refer to page 75

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 Selection and protection of a motor

4.13.4 Online auto tuning (Pr. 95, Pr. 574) Magnetic flux Sensorless Vector

When online auto tuning is selected under Advanced magnetic flux vector control, Real sensorless vector control
or vector control, excellent torque accuracy is provided by temperature compensation even if the secondary
resistance value of the motor varies with the rise of the motor temperature.

Parameter Initial
Name Setting Range Description
Number Value
0 Online auto tuning is not performed
Online auto tuning
95 0 1 Start-time online auto tuning
selection
2 Magnetic flux observer (normal tuning)
Second motor online auto Select the second motor online auto tuning.
574 0 0, 1
tuning (same as Pr. 95)

(1) Start-time online auto tuning (setting is "1")

· By quickly tuning the motor constants at a start, high accuracy operation unaffected by the motor temperature and
stable operation with high torque down to ultra low speed can be performed.
· Make sure Advanced magnetic flux vector control (Pr. 80, Pr. 81 ), Real sensorless vector control or vector control (Pr.
800 ) is selected.
· Before performing online auto tuning, perform offline auto tuning without fail.
<Operation method>
1) Refer to page 171 to perform offline auto tuning.
2) Check that "3" or "103" (offline auto tuning completion) is set in Pr. 96 Auto tuning setting/status.
3) Set "1" (start-time online auto tuning) in Pr. 95 Online auto tuning selection.
Online auto tuning is performed from the next starting.
4) Before starting operation, check that the following parameters have been set.
Parameter
Description
Number
9 Used as rated motor current and electronic thermal relay parameters.
71 Applied motor
Motor capacity (down to one rank lower than the inverter capacity, note
80
that the capacity should be 0.4kW or more)
81 Number of motor poles

5) When performing PU operation, press / of the operation panel.

For external operation, turn ON the run command (STF signal or STR signal).
CAUTION
· For using start-time online auto tuning in elevator, examine the utilization of a brake sequence for the brake opening timing at a
start. Though the tuning ends in about a maximum of 500ms after a start, torque is not provided fully during that period.
Therefore, note that there may be a possibility of drop due to gravity.
It is recommended to perform tuning using a start time tuning signal (X28). (Refer to page 183.)

4
PARAMETERS

181
Selection and protection of a motor

(2) Magnetic flux observer (normal tuning) (setting value is "2")

· When exercising vector control using a motor with encoder, it is effective for torque accuracy improvement.
The current flowing in the motor and the inverter output voltage are used to estimate/observe the magnetic flux in
the motor.
The magnetic flux of the motor is always (including during operation) detected with high accuracy so that an
excellent characteristic is provided regardless of the change in the temperature of the secondary resistance.
· Vector control (Pr. 80, Pr. 81, Pr. 800) should be selected. (Refer to page 75.)

CAUTION
· For the SF-V5RU, SF-JR (with encoder), SF-HR (with encoder), SF-JRCA (with encoder) or SF-HRCA (with encoder), it is not
necessary to perform offline auto tuning to select adaptive magnetic flux observer. (Note that it is necessary to perform offline
auto tuning for the wiring length resistance to be reflected on the control when the wiring length is long (30m or longer as
reference).

REMARKS
· Online auto tuning does not operate if the MRS signal is input, if the preset speed is less than the Pr. 13 Starting frequency (V/F
control or Advanced magnetic flux vector control), or if the starting conditions of the inverter are not satisfied, e.g. inverter error.
· Online auto tuning does not operate during deceleration or at a restart during DC brake operation.
· Invalid for jog operation.
· Automatic restart after instantaneous power failure overrides when automatic restart after instantaneous power failure is selected.
(Start-time online auto tuning is not performed at frequency search.)
Perform online auto tuning at a stop with the X28 signal when using automatic restart after instantaneous power failure together.
(Refer to the following for details.)
· Zero current detection and output current detection are valid during online auto tuning.
· The RUN signal is not output during online auto tuning. The RUN signal turns on at a start.
· If the period from an inverter stop to a restart is within 4s, start-time tuning is performed but the tuning results are not reflected.

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 Selection and protection of a motor

(3) Start-time online auto tuning from external terminal (X28 signal, Y39 signal)
· By turning ON the start-time tuning signal (X28) before the
Output frequency

start signal (STF or STR) turns ON (at a stop), online tuning

is performed and a starting delay after start signal turns ON
due to tuning can be avoided.
· Perform offline auto tuning and set "1" (start-time tuning) in
Pr. 95.
(Hz)
Time
· When the start-time tuning completion signal (Y39) is OFF,
start-time tuning with the X28 signal is performed.
X28signal ON · Start-time tuning ends within 500ms maximum.
Tuning status Completion · When using the X28 signal, set "28" in Pr. 178 to Pr. 189
at starting Tune (input terminal function selection) and assign functions to the
Y39signal input terminal.
Start signal
· When using the Y39 signal, set "39 (positive logic) or 139
(negative logic)" in Pr. 190 to Pr. 196 (output terminal function
selection) and assign functions to the output terminal.

Tuning is performed at start when X28 signal is OFF

ON ON ON ON ON (even when Y39 is ON).
X28 Signal OFF X28 Signal OFF

Tune Tune Tune Tune Tune Tune

Tuning status Completed Completed Completed Tuning status Completed Completed Completed
at starting Secondary magnetic Secondary magnetic at starting Secondary magnetic Secondary magnetic
flux exists a few seconds flux exists a few seconds flux exists a few seconds flux exists a few seconds
ON ON ON ON
OFF Y39 signal OFF
Y39 signal
Y39 signal is OFF when the motor is stopped Tuning is not
and X28 is turned OFF. However if the performed if the
secondary magnetic flux exists after motor stop, Y39 signal is ON. OFF
the signal remains ON. Start signal
Start signal OFF

Output frequency
ON
0Hz
X28 Signal OFF
Time

Tune Tuning is not performed at start since X28 signal

Tuning status and Y39 signal is ON.
Completed
at starting

ON
Y39 signal OFF

OFF
Start signal

Output
frequency 0Hz
Time

REMARKS 4
· Start-time tuning is performed when the start signal is turned ON during zero speed control also.
· The Y39 signal is in ON status while secondary magnetic flux exists after the motor stop.
· While the Y39 signal is ON, the X28 signal is not valid.
PARAMETERS

· The STF, STR signals are valid after completion of the start-time tuning.
· The following output terminals (initial setting) are valid during online auto tuning:
IPF, A1B1C1
· Tuning is invalid during V/F control.

CAUTION
· Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) or Pr. 190 to Pr. 196 (output terminal
function selection) may affect the other functions. Set parameters after confirming the function of each terminal.

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Selection and protection of a motor

(4) Tune second applied motor

· When you want to switch two motors with one inverter, set the second motor in Pr. 450 Second applied motor. (Initial
setting is without second applied motor. (Refer to page 169))
Perform tuning using Pr. 574 Second motor online auto tuning.
Pr. 574 Second motor online auto tuning is valid when the RT signal turns on.
Parameter
Description
Number
Used as rated motor current and electronic thermal relay
51
parameters.
450 Applied motor
Motor capacity (down to one rank lower than the inverter
453
capacity, note that the capacity should be 0.4kW or more)
454 Number of motor poles

REMARKS
· The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 211.)
The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), you can assign the RT signal to the other terminal.

CAUTION
· Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 9 Electronic thermal O/L relay Refer to page 165
Pr. 71 Applied motor Refer to page 169
Pr. 80 Motor capacity Refer to page 75
Pr. 81 Number of motor poles Refer to page 75
Pr. 96 Auto tuning setting/status Refer to page 171
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 190 to Pr .196 (output terminal function selection) Refer to page 215

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 Motor brake and stop operation

4.14 Motor brake and stop operation

Purpose Parameter that must be Set Refer to Page
DC injection brake and zero speed Pr. 10 to Pr. 12,
Motor braking torque adjustment control, servo lock Pr. 802, Pr. 850 185
Magnetic flux decay output shutoff
Coast the motor to a stop Selection of motor stopping method Pr. 250 189
Used to stop the motor with a Pr. 270, Pr. 275,
mechanical brake (vibration restraint Stop-on-contact control Pr. 276 190
at stop-on-contact)
Used to stop the motor with a Pr. 278 to Pr. 285,
mechanical brake (operation timing Brake sequence function Pr. 292 193
of a mechanical brake)
Perform position stop (orientation) Pr. 350 to Pr. 366,
control of the rotation shaft Orientation control Pr. 369, Pr. 393, 196
Pr. 396 to Pr. 399

4.14.1 DC injection brake and zero speed control, servo lock (LX signal, X13 signal,
Pr. 10 to Pr. 12, Pr. 802, Pr. 850)
The DC injection brake can be operated at a motor stop to adjust the stop timing and braking torque.
Zero speed control can be selected during Real sensorless vector control and either zero speed control or
servo lock can be selected under vector control.
In DC injection brake operation, DC voltage is directly applied to the motor to prevent the motor shaft from
rotating when a motor decelerates to stop. While, in zero speed control, vector control is performed to maintain
0r/min. In either control, the motor will not return to the original position if the motor shaft rotates due to
external force.
The motor shaft position is maintained with servo lock. The motor will return to the original position if the motor
shaft rotates due to external force.
Select the magnetic flux decay output shutoff function to decay the magnetic flux before shutting off the output
at a stop.

Parameter Name Initial Value Setting Range Description

Number
Set the operation frequency of the DC
DC injection brake 0 to 120Hz injection brake (zero speed control, servo
10 operation frequency 3Hz lock).
9999 Operated at Pr. 13 or less.
0 DC injection brake (zero speed control)
DC injection brake disabled
11 operation time 0.5s
0.1 to 10s Set the operation time of the DC injection
brake (zero speed control, servo lock).
DC injection brake 7.5K or lower 4% Set the DC injection brake voltage (torque).
12 operation voltage 0 to 30% When "0" is set, DC injection brake is disabled.
11K or higher 2%
Pre-excitation 0 Zero speed control
802 * 0
selection 1 Servo lock
0 DC injection brake operation
Brake operation 1 Zero speed control
850 selection 0
2
Magnetic flux decay output shutoff 4
* This parameter can be set when the FR-A7AP/FR-A7AL (option) is mounted.
.............Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.
PARAMETERS

185
Motor brake and stop operation

When Pr. 11 = "0.1 to 10s" (1) Operation frequency setting (Pr. 10)
⋅ When the frequency at which the DC injection brake (zero speed control,
Output frequency (Hz)

servo lock) operates is set in Pr. 10, the DC voltage is applied to the motor

Pr. 10 Operation
upon reaching to the set frequency during deceleration.
⋅ At the Pr. 10 setting of "9999", the DC injection brake (zero speed control,

frequency
servo lock) is applied to the motor when deceleration is made to the
frequency set in Pr. 13 Starting frequency.
Time REMARKS
DC injection Pr.12
Operation ⋅ Performing pre-excitation (zero speed control) under Real sensorless vector
brake
voltage voltage may cause motor vibration, etc. at deceleration to stop. To prevent this, set
Time
Pr.10 DC injection brake operation frequency to 0.5Hz or less.
Pr. 11 Operation time ⋅ The initial value of Pr. 10 automatically changes to 0.5Hz during vector control.

(2) Operation time setting (X13 signal, Pr. 11)

When Pr. 11 = "8888" ⋅ Use Pr. 11 to set the duration period the DC injection brake (zero speed
control, servo lock) is applied.
Output frequency

⋅ When the motor does not stop due to large load moment (J), increasing the
setting produces an effect.
(Hz)

⋅ When Pr. 11 = "0s", the DC injection brake (zero speed control, servo lock)
is not operated. (At a stop, the motor coasts.)
⋅ When Pr. 11 = "8888", the DC injection brake (zero speed control, servo
Time
lock) is applied when X13 signal is turned on.
Pr. 12 ⋅ For the terminal used for X13 signal input, set "13" in any of Pr. 178 to Pr.
DC injection 189 to assign the function. (Refer to page 207)
brake Time
voltage REMARKS
X13 signal ON ON OFF ⋅ When the X13 signal is turned on with Pr. 11 = "8888", zero speed control is
ON activated regardless of setting of Pr. 850 Brake operation selection.
STF ⋅ Under vector control, zero speed control or servo lock is activated depending
on the Pr. 802 setting.

(3) Operation voltage (torque) setting (Pr. 12)

⋅ Use Pr. 12 to set the percentage to the power supply voltage. (This parameter is not used during zero speed control
or servo lock.)
⋅ When Pr. 12 = "0%", the DC injection brake is not operated. (At a stop, the motor coasts.)
⋅ When using the constant-torque motor (SF-JRCA) and energy saving motor (SF-HR, SF-HRCA), change the Pr. 12
setting as follows.
SF-JRCA: 3.7K or lower ...4%, 5.5K or higher...2%
SF-HR, SF-HRCA: 5.5K and 7.5K...3%, 11K or higher...2%
REMARKS
⋅ For the 5.5K and 7.5K, when the Pr. 12 setting is as below, changing the Pr. 71 Applied motor setting changes the Pr. 12 setting
automatically, it is not necessary to change the Pr. 12 setting.
(a) When Pr. 12 is 4% (initial value)
The Pr. 12 setting is automatically changed to 2% if the Pr. 71 value is changed from the value selecting the standard motor
(0, 2 to 8, 40, 43, 44) to the value selecting the constant torque motor (1, 13 to 18, 50, 53, 54).
(b) When Pr. 12 is 2%
The Pr. 12 setting is automatically changed to 4% (initial value) if the Pr. 71 value is changed from the value selecting the
constant torque motor (1, 13 to 18, 50, 53, 54) to the value selecting the standard motor (0, 2 to 8, 40, 43, 44).
⋅ Even if the Pr. 12 setting is increased, braking torque is limited so that the output current is within the rated inverter current.

(4) Brake operation selection during Real sensorless vector control (Pr. 850 = "0, 1")
⋅ You can select DC injection brake (initial value) or zero speed control for brake operation during Real sensorless
vector control.
When Pr. 850 = "1", zero speed control is exercised when the frequency reaches or decreases below the frequency
set in Pr. 10.
REMARKS
⋅ When the X13 signal is on with Pr. 11 = "8888", zero speed control is activated regardless of setting of Pr. 850 Brake operation
selection.
⋅ When restarting from brake operation during Real sensorless vector control, set "1" (zero speed control) in Pr. 850. When the
setting value is "0" (DC injection brake), it may take approx. 2s until frequency is actually output from when the start command
is input.

186
 Motor brake and stop operation

(5) Magnetic flux decay output shutoff

⋅ Frequent starts/stops (inching) with the mechanical brake via the output shutoff signal (MRS) may cause an
inverter failure and create a difference in operation with the motor at a restart under Real sensorless vector control.
The reason is that some magnetic flux is left in the motor at shutoff of the inverter output.
If this is the case, set Pr. 850 = "2" to select the magnetic flux decay output shutoff, and decay the magnetic flux
before shutting off the output at a stop.
⋅ Set the magnetic flux decay output shutoff function (Pr. 850 = "2") to shut off the output after decaying the motor
residual magnetic flux during Real sensorless vector control.
⋅ Turning OFF the start command decelerates the speed. Then, when an estimated speed is lower than Pr. 10 DC
injection brake operation frequency, inverter starts the magnetic flux decay output shutoff function.
⋅ When using brake sequence, the inverter starts the magnetic flux decay output shutoff function at 0.5Hz or Pr. 13
Starting frequency (whichever is lower) during deceleration.
⋅ During magnetic flux decay output shutoff, the torque decreases. Set a mechanical brake to be activated during
magnetic flux decay output shutoff.
⋅ When the MC is provided on the inverter output side, open the MC after magnetic flux decay processing time (refer
to the following) has passed.
⋅ The magnetic flux decay output shutoff function is stopped at restart or when tuning ON the Pre-excitation signal
(LX)/External DC injection brake operation start signal (X13).
REMARKS
⋅ Regardless of the Pr. 850 setting, turning ON the X74 (magnetic flux decay output shutoff signal) starts the magnetic flux decay
output shutoff.
Inverter output voltage shutoff timing

⋅ Normal operation ⋅ During brake sequence

Start command Start command
(STF, STR) (STF, STR)

Speed command Speed command

(rotation per (rotation per
second) minute)
Pr. 10 DC injection Pr. 13 Starting
brake operation frequency or 0.5Hz
frequency (whichever is lower)
ON
Magnetic flux decaying
Magnetic flux decaying ON Magnetic flux
Magnetic flux decay decay
processing time* processing time*
Output voltage ON
Output voltage ON
RUN ON
RUN ON
RY2 ON
RY2 ON
Mechanical brake ON
Mechanical brake ON
MC on the output side ON
MC on the output side ON
Do not turn OFF MC
during this period
Do not turn OFF MC
during this period
4
* The maximum time for magnetic flux decaying

Motor capacity (Pr. 80 setting) 3.7kW to 11kW 15kW to 30kW 37kW to 55kW
PARAMETERS

Magnetic flux decay processing time 500ms 800ms 900ms

REMARKS
⋅ When some other factor affecting output shutoff (such as inverter fault or MRS signal ON) occurs during the magnetic flux
decay output shutoff function, the magnetic flux decay output shutoff function is immediately stopped and shuts off the output.
⋅ To operate the magnetic flux decay output shutoff function by turning ON the X74 signal, set "74" in any of Pr. 178 to Pr. 189
(input terminal function selection) to assign the function.

CAUTION
⋅ Voltage is output during magnetic flux decay processing. Take caution to avoid an electrical shock.
⋅ If the timing of mechanical brake opening is early, motor shaft may be forced to turn by a gravity drop or external force. If the
timing of mechanical brake opening is late, overcurrent, stall prevention operation or electronic thermal relay function may be
activated. Use output frequency detection signal (FU) or output current detection signal (Y12) to perform the mechanical brake
opening suitable for the machine.

187
Motor brake and stop operation

(6) Brake operation selection under vector control (Pr. 802)

⋅ When pre-excitation is performed, select zero speed control or servo lock using Pr. 802.
Pr. 802 Setting Pre-excitation Description
Even under load, an attempt is made to maintain 0r/min to keep the motor shaft stopped. Note that
0 (initial value) Zero speed control if the shaft is overcome and turned by external force, it does not return to the original position.
Position control is not exercised and only speed control is carried out to perform operation.
Even under load, an attempt is made to maintain the motor shaft position. Note that if the shaft is
1 Servo lock turned by external force, it returns to the original position after the external force has gone away.
Since position control is exercised, you can adjust this position loop gain using Pr. 422 Position loop gain.

⋅ The relationship between the DC injection brake operation and pre-excitation operation under each control

Control Method Control Mode Pr. 802 Pr. 850 Decelerates to Stop LX-ON X13-ON
(Pr. 11 = "8888")
V/F control ⎯ ⎯ ⎯ DC Injection brake ⎯ DC Injection brake
Advanced magnetic flux
⎯ ⎯ ⎯ DC Injection brake ⎯ DC Injection brake
vector control
⎯ 0 DC Injection brake
Speed Zero speed Zero speed
Real sensorless vector ⎯ 1 Zero speed
control ⎯ 0 DC Injection brake
Torque Zero speed Zero speed
⎯ 1 Zero speed
0 ⎯ Zero speed Zero speed Zero speed
Speed
1 ⎯ Servo lock Servo lock Servo lock
Vector control
Torque ⎯ ⎯ Zero speed Zero speed Zero speed
Position ⎯ ⎯ ⎯ Servo lock ⎯

(7) Pre-excitation signal (LX signal)

⋅ When the LX signal is turned on under Real sensorless vector control or vector control, pre-excitation (zero speed
control or servo lock) is exercised during a stop.
⋅ For the terminal used for LX signal input, set "23" in any of Pr. 178 to Pr. 186 to assign the function.
When Pr. 850 = 1
Output frequency

Pr. 10
Operation
frequency

(Hz) Time

Zero speed control

Servo lock
Normal operation Pr. 11 Normal operation
Operation time
LX signal ON

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
⋅ Performing pre-excitation (LX signal and X13 signal) under torque control (Real sensorless vector control) may start the motor
running at a low speed even when the start command (STF or STR) is not input. The motor may run also at a low speed when
the speed limit value=0 with a start command input. Perform pre-excitation after making sure that there will be no problem in
safety if the motor runs.
⋅ Although FWD/REV of the operation panel is not lit during pre-excitation, note that voltage is applied to the motor.
⋅ Note that when offline auto tuning (Pr. 96 Auto tuning setting/status = "1 or 101") is performed during pre-excitation, offline auto
tuning is not executed but the motor starts.

CAUTION
Do not set Pr. 11 to "0, 8888" and Pr. 12 to "0" under orientation operation. Otherwise, the motor will not stop properly.
As stop holding torque is not produced, install a mechanical brake.
After the machine stops fully and the mechanical brake is applied, switch the LX signal (pre-excitation) OFF.
♦ Parameters referred to ♦
Pr. 13 Starting frequency Refer to page 157
Pr. 71 Applied motor Refer to page 169
Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 207
Pr. 422 Position loop gain Refer to page 124

188
 Motor brake and stop operation

4.14.2 Stop selection (Pr. 250)

Used to select the stopping method (deceleration to a stop or coasting) when the start signal turns OFF. Used to
stop the motor with a mechanical brake, etc. together with switching off of the start signal.
You can also select the operations of the start signals (STF/STR). (Refer to page 212 for start signal selection)

Description
Parameter
Name Initial Value Setting Range Start signal (STF/STR)
Number Stop operation
(Refer to page 212)
STF signal: Forward The motor is coasted to a
rotation start stop when the preset time
0 to 100s
STR signal: Reverse elapses after the start
rotation start signal is turned off. The
STF signal: Start signal motor is coasted to a stop
1000s to 1100s STR signal: Forward/ (Pr. 250 - 1000)s after the
reverse signal start signal is turned OFF.
250 Stop selection 9999
STF signal: Forward
rotation start
9999
STR signal: Reverse When the start signal is
rotation start turned OFF, the motor
STF signal: Start signal decelerates to stop.
8888 STR signal: Forward/
reverse signal

(1) Decelerate the motor to a stop

Deceleration starts
Output frequency

when start signal turns off ⋅ Set Pr. 250 to "9999" (initial value) or "8888".
⋅ The motor decelerates to a stop when the start
Deceleration time
(Time set in Pr. 8, etc.) signal (STF/STR) turns OFF.
(Hz)

DC brake
Time
Start OFF
ON
signal
RUN
signal ON OFF
(2) Coast the motor to a stop
Output is shut off when set
⋅ Use Pr. 250 to set the time from when the start signal
Output frequency

time elapses after start signal

turns off turns off until the output is shut off. When any of
Pr.250
"1000" to "1100" is set, the output is shut off after
Motor coasts to stop (Pr. 250 − 1000)s.
(Hz)

Time
⋅ The output is shut off when the time set in Pr. 250
Start signal ON OFF has elapsed after the start signal had turned off. The
motor coasts to a stop.
RUN signal ON OFF
⋅ The RUN signal turns OFF when the output stops.

REMARKS 4
Stop selection is invalid when the following functions are activated.
⋅ Position control (Pr. 419 = 0)
PARAMETERS

⋅ Power failure stop function (Pr. 261)

⋅ PU stop (Pr. 75)
⋅ Deceleration stop because of fault definition (Pr. 875)
⋅ Deceleration stop because of communication error (Pr. 502)
⋅ Offline auto tuning (with motor running)
⋅ Emergency stop by LONWORKS communication
When setting of Pr. 250 is not 9999 nor 8888, acceleration/deceleration is performed according to the frequency command, until
start signal is OFF and output is shutoff.

CAUTION
⋅ When the start signal is turned ON again during motor coasting, the motor starts at Pr. 13 Starting frequency.
♦ Parameters referred to ♦
Pr. 7 Acceleration time , Pr. 8 Deceleration time Refer to page 155
Pr. 13 Starting frequency Refer to page 157

189
Motor brake and stop operation

4.14.3 Stop-on contact control function (Pr. 6, Pr. 48, Pr. 270, Pr. 275, Pr. 276)
Magnetic flux Sensorless

To ensure accurate positioning at the upper limit etc. of <Without stop-on-contact control> <With stop-on-contact control>
a lift, stop-on-contact control causes a mechanical
brake to be closed while the motor is developing a
holding torque to keep the load in contact with a Vibration Complete stop
mechanical stopper etc.
This function suppresses vibration which is liable to
occur when the load is stopped upon contact in vertical Lift Lift
motion applications, ensuring steady precise
positioning.

Parameter Initial
Number Name Value Setting Range Description
Multi-speed setting
6 10Hz 0 to 400Hz Set the output frequency for stop-on-contact control.
(low speed)
22*1 Stall prevention
150% 0 to 400%
operation level
Set the stall prevention operation level for stop-on-contact control.
Second stall The smaller value set in either Pr. 22 or Pr. 48 has a priority.
48 prevention 150% 0 to 220%
operation current
0 Normal operation
Stop-on contact/ 1 Stop-on-contact control
270 load torque high- 0
speed frequency 2 Load torque high speed frequency control (Refer to page 351)
control selection Stop-on-contact+load torque high speed frequency control (Refer
3
to page 351)
Stop-on contact Set the force (holding torque) for stop-on-contact control.
excitation current 0 to 1000% Normally set 130% to 180%.
275*2 low-speed
9999 Valid only during Advanced magnetic flux vector control
multiplying factor 9999 No compensation.
Set a PWM carrier frequency for stop-on-contact control.
PWM carrier For Real sensorless vector control, carrier frequency is always
0 to 9
276 frequency at stop- 9999 2Hz when a setting value is 0 to 5 and always 6Hz when a setting
on contact value is 6 to 9. (Valid at the frequency of 3Hz or less.)
9999 As set in Pr. 72 PWM frequency selection .
*1 This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write
selection.
*2 This parameter allows its setting to be changed during operation even if "0" (initial value) is set in Pr. 77 Parameter write selection.

<Connection and operation example>

MC Normal mode Stop-on contact

Output frequency

Sink logic Pr. 4 control mode

Mechanical
brake
Pr. 5

Pr. 6
MCCB 0 Time
R/L1 U
Power
supply S/L2 V Motor (a) (b) (c)
T/L3 W RH ON

RM OFF ON
Forward rotation command STF
RL OFF ON
High-speed operation command RH *
*
Middle-speed operation command RM * RT OFF ON
Stop-on contact selection 0 RL * Goes into stop-on-contact control mode when
Stop-on contact selection 1 RT * both RL and RT switch on.
SD *RL and RT may be switched on in any order
with any time difference
(a):Acceleration time (Pr. 7 )
(b):Deceleration time (Pr. 8 )
* The input terminal used differs according to the Pr. 180 to Pr. 189 settings. (c):Second deceleration time (Pr. 44/Pr. 45 )

190
 Motor brake and stop operation

(1) Set stop-on-contact control

⋅ Make sure that the inverter is in External operation mode. (Refer to page 290 )
⋅ Select either Real sensorless vector control or Advanced magnetic flux vector control.
⋅ Set"1 or 3" in Pr. 270 Stop-on contact/load torque high-speed frequency control selection .
⋅ Set output frequency during stop-on-contact control in Pr. 6 Multi-speed setting (low speed).
The frequency should be as low as possible (about 2Hz). If it is set to more than 30Hz, the operating frequency will
be 30Hz.
⋅ When both the RT and RL signals are switched on, the inverter enters the stop-on-contact mode, in which operation
is performed at the frequency set in Pr. 6 independently of the preceding speed.

CAUTION
⋅ By increasing the Pr. 275 setting, the low-speed (stop-on-contact) torque increases, but overcurrent fault (E.OCT) may occur or
the machine may oscillate in a stop-on-contact state.
⋅ The stop-on-contact function is different from servo-lock function, and if used to stop or hold a load for an extended period, this
function can cause the motor to overheat.
After a stop, immediately change to a mechanical brake to hold the load.
⋅ Under the following operating conditions, the stop-on-contact function is invalid:
PU operation (Pr. 79) · JOG operation (JOG signal) · PU+external operation (Pr. 79) · PID control function operation (Pr. 128)
· Remote setting function operation (Pr. 59) · Start time tuning · Orientation control function operation
⋅ When performing stop-on-contact control during encoder feedback control, encoder feedback control is invalid due to a mode
shift to the stop-on-contact control mode.

(2) Function switching of stop-on-contact control selection

Normal Operation With Stop-on-Contact Control
(either RL or RT is off or both are off) (both RL and RT are on)
Useful Functions Advanced Advanced
Real sensorless magnetic flux vector Real sensorless magnetic flux vector
vector control control vector control control
Multi-speed
Output frequency 0 to 5V, 0 to 10V Pr. 6 setting
4 to 20mA etc.
The smaller value set
Stall prevention operation level ⎯ Pr. 22 setting ⎯ in either Pr. 22 or Pr. 48.
*
Torque limit level Pr. 22 setting ⎯ Pr. 22 setting ⎯
The current is
compensated for by Pr.
Excitation current low speed
⎯ ⎯ 275 (0 to 1000%)
scaling factor
settings from normal
operation.

Carrier frequency Pr. 72 setting Pr. 276 setting when output frequency is 3Hz or
less (Pr. 72 when Pr. 276 = "9999")
Fast response current limit ⎯ Valid ⎯ Invalid
* When RL and RT are on, Pr. 49 Second stall prevention operation frequency is invalid.

4
PARAMETERS

191
Motor brake and stop operation

(3) Set frequency when stop-on-contact control (Pr. 270 = 1, 3) is selected

⋅ The following table lists the frequencies set when the input terminals (RH, RM, RL, RT, JOG) are selected together.
Bold frame indicates stop-on-contact control is valid.
⋅ Stop-on-contact control is disabled when remote setting function is selected (Pr. 59 = 1 to 3).

Input Signal ( = on) Input Signal ( = on)

Set Frequency Set Frequency
RH RM RL RT JOG RH RM RL RT JOG
Pr. 4 Multi-speed setting (high speed) Pr. 15 Jog frequency
Pr. 5 Multi-speed setting (middle speed) Pr. 15 Jog frequency
Pr. 6 Multi-speed setting (low speed) Pr. 6 Multi-speed setting (low speed)
By 0 to 5V(0 to 10V), 4 to 20mA Pr. 15 Jog frequency
input
Pr. 15 Jog frequency
Pr. 15 Jog frequency
Pr. 6 Multi-speed setting (low speed)
Pr. 26 Multi-speed setting (speed 6)
Pr. 15 Jog frequency
Pr. 25 Multi-speed setting (speed 5)
Pr. 26 Multi-speed setting (speed 6)
Pr. 4 Multi-speed setting (high speed)
Pr. 27 Multi-speed setting (speed 7)
Pr. 15 Jog frequency
Pr. 15 Jog frequency
Pr. 24 Multi-speed setting (speed 4)
Pr. 15 Jog frequency
Pr. 5 Multi-speed setting (middle speed)
Pr. 15 Jog frequency
Pr. 15 Jog frequency
Pr. 15 Jog frequency
Pr. 6 Multi-speed setting (low speed)
Pr. 6 Multi-speed setting (low speed)
Pr. 15 Jog frequency
Pr. 15 Jog frequency
Pr. 15 Jog frequency
By 0 to 5V(0 to 10V), 4 to 20mA
Pr. 15 Jog frequency input

CAUTION
⋅ Changing the terminal function using any of Pr. 178 to Pr. 189 may affect the other functions. Set parameters after confirming the
function of each terminal.
♦ Parameters referred to ♦
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27 (multi-speed setting) Refer to page 148
Pr. 15 Jog frequency Refer to page 150
Pr. 22 Stall prevention operation level, Pr. 48 Second stall prevention operation current Refer to page 135
Pr. 22 Torque limit level Refer to page 83
Pr. 59 Remote function selection Refer to page 152
Pr. 72 PWM frequency selection Refer to page 261
Pr. 79 Operation mode selection Refer to page 290
Pr. 95 Online auto tuning selection Refer to page 181
Pr. 128 PID action selection Refer to page 338
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 270 = 2, 3 (load torque high-speed frequency control) Refer to page 351

192
 Motor brake and stop operation

4.14.4 Brake sequence function (Pr. 278 to Pr. 285, Pr. 292) Magnetic flux Sensorless Vector

This function is used to output from the inverter the mechanical brake operation timing signal in vertical lift and
other applications.
This function prevents the load from dropping with gravity at a start due to the operation timing error of the
mechanical brake or an overcurrent alarm from occurring at a stop, ensuring secure operation.

Parameter Initial Setting

Name Description
Number Value Range
Set to the rated slip frequency of the motor + about 1.0Hz.
278 Brake opening frequency 3Hz 0 to 30Hz
This parameter may be only set if Pr. 278 ≤ Pr. 282.
Generally, set this parameter to about 50 to 90%. If the setting
279 Brake opening current 130% 0 to 220% is too low, the load is liable to drop due to gravity at start.
Suppose that the rated inverter current is 100%.
Brake opening current
280 0.3s 0 to 2s Generally, set this parameter to about 0.1 to 0.3s.
detection time
Set the mechanical delay time until the brake is loosened.
281 Brake operation time at start 0.3s 0 to 5s Set the mechanical delay time until the brake is loosened +
about 0.1 to 0.2s when Pr. 292 = "8".
Set the frequency to activate the mechanical brake by turning
off the brake opening request signal (BOF). Generally, set this
282 Brake operation frequency 6Hz 0 to 30Hz
parameter to the Pr. 278 setting + 3 to 4Hz.
Setting is enabled only when Pr. 282 ≥ Pr. 278.
Set the mechanical delay time until the brake is closed + 0.1s
when Pr. 292=7.
283 Brake operation time at stop 0.3s 0 to 5s
Set the mechanical delay time until the brake is closed + 0.2
to 0.3s when Pr. 292 = 8.
0 Deceleration is not detected.
Deceleration detection
284
function selection
0 If deceleration is not normal during deceleration operation, the
1
inverter fault is provided.
If (detected frequency) - (output frequency) ≥ Pr. 285 during
Overspeed detection 0 to 30Hz encoder feedback control, the inverter fault (E.MB1) is
285 9999
frequency *1 provided.
9999 Overspeed is not detected.
0 Normal operation mode
3 Optimum acceleration/deceleration mode (Refer to page 163)
Automatic acceleration/ 5, 6 Elevator mode (Refer to page 146)
292 0
deceleration 7 Brake sequence mode 1
8 Brake sequence mode 2
11 Shortest acceleration/deceleration mode (Refer to page 162)
*1 When exercising vector control with the FR-A7AP/FR-A7AL (option), this parameter changes to excessive speed deviation detection frequency
(For details, refer to page 100)

<Connection diagram>

MC *1 The input signal terminal used differs

Sink logic according to the Pr. 178 to Pr. 189
Mechanical settings. 4
Pr.184 = 15 brake *2 The output signal terminal used differs
according to the Pr. 190 to Pr. 196
Pr.190 = 20
settings.
PARAMETERS

MCCB *3 The current should be within the

R/L1 U permissible current of transistor in the
Power inverter. (24V 0.1ADC)
S/L2 V Motor
supply
T/L3 W
Start signal STF 24VDC
Multi-speed signal RH *2
*3

RUN(BOF) MC Brake opening request

Brake opening completion signal AU(BRI) *1 signal (BOF)
(BRI)
SD SE

CAUTION
⋅ When brake sequence mode is selected, automatic restart after instantaneous power failure is invalid.
⋅ When using this function, set the acceleration time to 1s or longer.
⋅ Changing the terminal function using any of Pr. 178 to Pr. 189, Pr. 190 to Pr. 196 may affect the other functions.
Set parameters after confirming the function of each terminal.

193
Motor brake and stop operation

(1) Set the brake sequence mode

⋅ Select either Real sensorless vector control, vector control (speed control) or Advanced magnetic flux vector control.
The brake sequence function is valid only when the External operation mode, External/PU combined operation mode
1 or Network operation mode is selected.
⋅ Set "7 or 8" (brake sequence mode) in Pr. 292 .
To ensure more complete sequence control, it is recommended to set "7" (brake opening completion signal input) in Pr. 292 .
⋅ Set "15" in any of Pr. 178 to Pr. 189 (input terminal function selection) and assign the brake opening completion signal
(BRI) to the input terminal.
⋅ Set "20 (positive logic)" or "120 (negative logic)" in any of Pr. 190 to Pr. 196 (output terminal function selection) and
assign the brake opening request signal (BOF) to the output terminal.
(2) With brake opening completion signal input (Pr. 292 = "7")
⋅ When the start signal is input to the inverter, the inverter starts running. When the internal speed command reaches
the value set in Pr. 278 and the output current is not less than the value set in Pr. 279 , the inverter outputs the brake
opening request signal (BOF) after the time set in Pr. 280 has elapsed.
When the time set in Pr. 281 elapses after the brake opening completion signal (BRI) was activated, the inverter
increases the output frequency to the set speed.
⋅ When the inverter decelerates to the frequency set in Pr. 282 during deceleration, the inverter turns OFF the BOF
signal and decelerates further to the frequency set in Pr. 278. After electromagnetic brake operation completes and
inverter recognizes the turn OFF of BRI signal, the inverter holds the frequency set in Pr. 278 for the time set in Pr.
283. And after the time set in Pr. 283 passes, the inverter decelerates again. The inverter finally stops when its
frequency reaches to Pr. 13 Starting frequency setting or 0.5Hz, whichever is lower.
Output frequency(Hz)

Target frequency Pr. 280

Pr. 13 setting or 0.5Hz,
Pr. 282 Pr. 281
whichever is lower
Pr. 278
Pr. 13
Time
ON Pr. 283
STF
Pr. 279
Output current
Brake opening request ON
(BOF signal)
Brake opening completion ON
(BRI signal)
Closed Opened Closed
Electromagnetic brake
operation

(3) Without brake opening completion signal input (Pr. 292 = "8")
⋅ When the start signal is input to the inverter, the inverter starts running. When the internal speed command reaches
the value set in Pr. 278 and the output current is not less than the value set in Pr. 279 , the inverter outputs the brake
opening request signal (BOF) after the time set in Pr. 280 has elapsed.
When the time set in Pr. 281 elapses after the BOF signal is output, the inverter increases the output frequency to the
set speed.
⋅ When the inverter decelerates to the frequency set in Pr.282 during deceleration, the inverter turns OFF the BOF
signal and decelerates further to the frequency set in Pr.278. After the turn OFF of BOF signal, the inverter holds the
frequency set in Pr.278 for the time set in Pr.283. And after the time set in Pr.283 passes, the inverter decelerates again.
The inverter finally stops when its frequency reaches to Pr. 13 Starting frequency setting or 0.5Hz, whichever is lower.
Output frequency (Hz)

Target frequency Pr. 280

Pr. 282 Pr. 13 setting or 0.5Hz,
Pr. 281
Pr. 278 whichever is lower

Pr. 13
Time
ON Pr. 283
STF

Output current Pr. 279

Brake opening request ON
(BOF signal)
Closed Opened Closed
Electromagnetic brake
operation

REMARKS
⋅ Even if brake sequence mode has been selected, inputting the JOG signal (jog operation), RT signal (second function
selection) or X9 signal (third function selection) during an inverter stop will switch to the normal operation and give priority to jog
operation or second and third function selection. Note that JOG and RT signal input is invalid even if JOG signal and RT signal
are input during automatic acceleration/deceleration operation.

194
 Motor brake and stop operation

(4) Protective functions

If any of the following errors occurs in the brake sequence mode, the inverter results in a fault, trips, and turns off the
brake opening request signal (BOF).
Fault Display Description
(Detection frequency) - (output frequency) > Pr. 285 during encoder feedback control
E.MB1
When Pr. 285 Overspeed detection frequency = 9999, overspeed is not detected.
Deceleration is not normal during deceleration operation from the set frequency to the frequency set in
E.MB2
Pr. 282. (when Pr. 284 =1) (except stall prevention operation)
E.MB3 Brake opening request signal (BOF) turned on though the motor is at a stop. (gravity drop prevention function)
Although more than 2s have elapsed after the start command (forward or reverse rotation) is input, the brake
E.MB4
opening request signal (BOF) does not turn on.
Although more than 2s have elapsed after the brake opening request signal (BOF) turned on, the brake opening
E.MB5
completion signal (BRI) does not turn on.
Though the inverter had turned on the brake opening request signal (BOF), the brake opening completion signal
E.MB6
(BRI) turned off midway.
Although more than 2s have elapsed after the brake opening request signal (BOF) turned off at a stop, the brake
E.MB7
opening completion signal (BRI) does not turn off.

CAUTION
⋅ During deceleration, inverter output is shut OFF when the frequency reaches Pr. 13 Starting frequency or 0.5Hz, whichever is lower.
For Pr. 278 Brake opening frequency, set a frequency equal to or higher than the Pr. 13 setting or 0.5Hz.
⋅ Overspeed detection (Pr. 285) is valid under encoder feedback control (used with the FR-A7AP/FR-A7AL (option)) even if a value
other than "7 or 8" is set in Pr. 292.
⋅ Setting Pr. 278 Brake opening frequency too high activates stall prevention operation and may cause E.MB4.
⋅ If the sum of the time between Pr. 13 Starting frequency and Pr. 278
Output frequency (Hz)

Brake opening frequency + Pr. 280 Brake opening current detection

time is more than 2s, E.MB4 occurs.
Less than 2s
Output
frequency
Pr. 278 (Hz)

Pr. 13
Pr. 280
Time

ON
Brake opening request
(BOF signal)

♦ Parameters referred to ♦
Pr. 80 Motor capacity, Pr. 81 Number of motor poles Refer to page 75
Pr. 180 to Pr. 186 (input terminal function selection) Refer to page 207
Pr. 190 to Pr. 195 (output terminal function selection) Refer to page 215
Pr. 800 Control method selection Refer to page 75
Encoder feedback control Refer to page 359

4
PARAMETERS

195
Motor brake and stop operation

4.14.5 Orientation control (Pr. 350 to Pr. 366, Pr. 369, Pr. 393, Pr. 396 to Pr. 399)
V/F Magnetic flux Vector

This function is used with a position detector (encoder) installed to the spindle of a machine tool, etc. to allow a
rotation shaft to be stopped at the specified position (oriented).
Option FR-A7AP/FR-A7AL is necessary.
Pr. 350 Stop position command selection is initially set to "9999", orientation control function is invalid.

Parameter Initial Setting

Name Description
Number Value Range
0 Internal stop position command (Pr. 356)
Stop position command
350 9999 1 External stop position command (FR-A7AX 16-bit data)
selection
9999 Orientation control invalid
Decrease the motor speed to the set value when the
351 Orientation speed 2Hz 0 to 30Hz
orientation command (X22) is given.
352 Creep speed 0.5Hz 0 to 10Hz After the speed reaches the orientation speed, the speed
decreases to the creep speed set in Pr. 352 as soon as the
Creep switchover
353 511 0 to 16383* current position pulse reaches the creep switchover
position position set in Pr. 353.
As soon as the current position pulse reaches the set
Position loop switchover
354 96 0 to 8191 position loop switchover position, control is changed to
position
position loop.
After changed to position loop, DC injection brake is
DC injection brake start applied and the motor stops as soon as the current
355 5 0 to 255
position position pulse reaches the set DC injection brake start
position.
When "0" is set in Pr. 350, the internal position command is
Internal stop position
356 0 0 to 16383* activated and the setting value of Pr. 356 becomes a stop
command
position.
Orientation in-position
357 5 0 to 255 Set the in-position zone at a stop of the orientation.
zone
358 Servo torque selection 1 0 to 13 Functions at orientation complete can be selected.
CW
A
0 Encoder
Clockwise direction as viewed
Encoder rotation from A is forward rotation
359 1
direction CCW
A
1 Encoder
Counter clockwise direction as
viewed from A is forward rotation
0 Speed command
When 1 is set in Pr. 350 and
16 bit data is used as
the FR-A7AX is mounted,
1 external position command
set a stop position using 16-
as is.
360 16 bit data selection 0 bit data.
Set the stop position
Stop position command is
dividing up to 128 stop
2 to 127 input as binary regardless
positions at regular
of the Pr. 304 setting.
intervals.
Shift the origin using a compensation value without
changing the origin of the encoder. The stop position is a
361 Position shift 0 0 to 16383*
position obtained by adding the setting value of Pr. 361 to
the position command.
When servo torque function is selected using Pr. 358,
output frequency for generating servo torque increases to
Orientation position loop
362 1 0.1 to 100 the creep speed of Pr. 352 gradually according to the slope
gain
set in Pr. 362. Although the operation becomes faster
when the value is increased, a machine may hunt, etc.
The orientation complete signal is output delaying the set
Completion signal output
363 0.5s 0 to 5.0s time after in-position zone is entered. Also, the signal
delay time
turns off delaying the set time after in-position zone is out.

196
 Motor brake and stop operation

Parameter Initial Setting

Name Description
Number Value Range
Orientation fault signal (ORM) is output when the encoder
remains stopped for the set time without orientation
complete in the state where no orientation complete signal
364 Encoder stop check time 0.5s 0 to 5.0s
(ORA) is output. ORM signal is output when orientation is
not completed again in the set time in the state where
ORA signal is output.
Measure the time taken after passing the creep
0 to 60.0s switchover position and output the orientation fault signal
365 Orientation limit 9999
(ORM) if orientation is not completed within the set time.
9999 Set to 120s.
Turning off the start signal with orientation command
(X22) on after stopping the motor by orientation control,
0 to 5.0s the present position is checked again after the set time
366 Recheck time 9999
elapses and the orientation complete signal (ORA) or
orientation fault signal (ORM) is output.
9999 Not checked.
Number of encoder Set the number of pulses of the encoder.
369 1024 0 to 4096
pulses Set the number of pulses before multiplied by four.
0 Orientation is executed from the current rotation direction.
393 Orientation selection 0 1 Orientation is executed from the forward rotation direction.
2 Orientation is executed from the reverse rotation direction.
Orientation speed gain (P
396 60 0 to 1000
term) Response level during position control loop (servo rigidity)
Orientation speed at orientation stop can be adjusted.
397 0.333 0 to 20.0s
integral time
Orientation speed gain (D
398 1 0 to 100.0 Lag/advance compensation gain can be adjusted.
term)
Orientation deceleration Make adjustment when the motor runs back at orientation
399 20 0 to 1000
ratio stop or the orientation time is long.
The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.
* When the operation panel (FR-DU07) is used, the maximum setting is 9999. When a parameter unit is used, up to the maximum value within
the setting range can be set.

4
PARAMETERS

197
Motor brake and stop operation

(1) Connection example

For complementary type (SF-V5RU)
MCCB SF-V5RU
MCCB Inverter SF-JR motor with encoder *10
A
Three-phase
R/L1 U U AC power B
FAN
Three-phase supply C
AC power S/L2 V V
IM
supply T/L3 W W U U
Inverter
E V V
IM
W W
Forward rotation start STF E
FR-A7AP Earth (Ground)
Reverse rotation start STR PA1 C *1
External Earth (Ground)
Orientation command X22*2 PC Thermal
PA2 R thermal relay 2W1kΩ relay
input *11 CS(OH) G1 protector
Contact input common SD
PB1 A G2
ORA*3 SD
PB2 N
ORM FR-A7AP PA1 A *1
*3
Encoder
PZ1 B PA2 B

SE Differential
PZ2 P *4 PB1 C
SD PB2 D
PG H Encoder
Differential PZ1 F
FR-A7AX
Complementary SD K PZ2 G
X15 *9 *4

PG Complementary PG S
X14
Terminating SD R
SD *5 Terminating
resistor ON
X1 resistor ON PG
*7 (+) (-) 5VDC power
SD *5
X0 supply*8 (+) (-) 12VDC power
*6 *7
*6 supply *8
OFF OFF
DY

*1 The pin number differs according to the encoder used.

*2 Use Pr. 178 to Pr. 189 (input terminal function selection) to assign the function to any of terminal. (Refer to page 207.)
*3 Use Pr. 190 to Pr. 196 (output terminal function selection) to assign the function to any of terminal. (Refer to page 215.)
*4 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio should be 1:1.
*5 Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc. (Refer to page 35.)
*6 For the differential line driver, set the terminating resistor selection switch to on position (initial status) to use. (Refer to page 31.)
Note that the terminating resistor switch should be set to off position when sharing the same encoder with other unit (NC, etc) or a terminating
resistor is connected to other unit.
For the complementary, set the switch to off position.
*7 For terminal compatibility of the FR-JCBL, FR-V7CBL and FR-A7AP, refer to page 33.
*8 A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power specification.
When performing encoder feedback control and vector control together, an encoder and power supply can be shared.
*9 When a stop position command is input from outside, a plug-in option FR-A7AX is necessary. Refer to page 199 for external stop position
command.)
*10 For the fan of the 7.5kW or less dedicated motor, the power supply is single phase. (200V/50Hz, 200 to 230V/60Hz)
*11 Assign OH (external thermal input) signal to the terminal CS. (Set "7" in Pr. 186 )
Connect a 2W1kΩ resistor between the terminal PC and CS(OH). CS(OH)
Install the resistor pushing it against the bottom part of the terminal block so as to avoid a contact with PC
other cables. Control circuit
terminal block

<Setting> Resistor (2W1kΩ)

If the orientation command signal (X22) is turned on during operation after the various
parameters have been set, the speed will decelerate to the "orientation switchover speed". After the "orientation stop
distance" is calculated, the speed will further decelerate, and the "orientation state" (servo lock) will be entered. The
"orientation complete signal" (ORA) will be output when the "orientation complete width" is entered.
(2) Setting I/O signals
Signal Signal Name Application Explanation
Used to enter an orientation signal for orientation.
X22*1 Orientation command input For the terminal used for X22 signal input, set "22" in any of Pr. 178 to Pr. 189 to assign
the function.
SD Contact input common Common terminal for the orientation signal.
Switched low if the orientation has stopped within the in-position zone while the start
Orientation complete signal and orientation signals are input.
ORA*2
output For the terminal used for the ORA signal output, assign the function by setting "27
(positive logic) or 127 (negative logic)" in any of Pr. 190 to Pr. 196.
Switched low if the orientation has not stopped within the in-position zone while the
start and orientation signals are input.
ORM*2 Orientation fault signal output
For the terminal used for the ORM signal output, assign the function by setting "28
(positive logic) or 128 (negative logic)" in any of Pr. 190 to Pr. 196.
SE Open collector output common Common terminal for the ORA and ORM open collector output terminals.
*1 For X22 signals, assign functions to any of terminal using Pr. 178 to Pr. 189 (output terminal function selection). (Refer to page 207)
*2 For ORA and ORM signals, assign functions to any of terminal using Pr. 190 to Pr. 196 (output terminal function selection). (Refer to page 215)

198
 Motor brake and stop operation

(3) Selecting stop position command (Pr. 350 Stop position command selection )
⋅ Select either the internal stop position command (Pr. 356) or the external stop position command (16-bit data using
the FR-A7AX).
Pr. 350 Setting Stop Position Command Source
0 Internal stop position command (Pr. 356: 0 to 16383)
1 External stop position command (FR-A7AX) 16-bit data
9999
Orientation control invalid
(Initial value)
1) Internal stop position command (Pr. 350 = "0")
Origin (0) Origin (0)
The value set in Pr. 356 is the stop position. CW CCW
When the number of encoder pulses is 1024p/r, one
revolution of the encoder is divided into 4096 positions, 270 90 90 270
(3072) (1024) (1024) (3072)
i.e. 360°/4096 pulses = 0.0879°/pulses per address, as
shown on the right. The stop positions (addresses) are
indicated in parentheses. 180 (2048) 180 (2048)
Pr. 359 = 1 Pr. 359 = 1
2) External stop position command (Pr. 350 = "1")
Mount the option FR-A7AX and set a stop position using 16-bit data (binary input).
⋅ The value set in Pr. 360 16 bit data selection should be the number of stop positions less 1.
Pr. 360 Setting Description
0 External position command is invalid (speed command or torque command with the FR-A7AX)
Position command direct input
The 16-bit digital signal from the FR-A7AX is directly serves as stop position command.
<Example>
1
When the Pr. 369 Number of encoder pulses setting is 1024, stop position command from 0 to 4095 can be
directly input using the FR-A7AX and input digital signal of 2048 (H800) to stop the motor at 180° position. The
command more than 4096 is considered as 4095.
Set the stop position command dividing up to 128 stop positions at regular intervals.
If the external stop command entered is greater than the setting, the stop positions are the same as those in
2 to 127 the maximum external stop command value.
<Example>
When the number of stop positions is 90 (divided at intervals of 4°), 90 - 1 = 89. Hence, set "89".

[Example] When Pr. 369 = "1024" [Example 2] 8 stop positions [Example 3] 120 stop positions

Origin (0) (7 or more) Origin(0) (1) Origin (0)

CW 45 CW CW
315
90 90 270 At intervals 90
270 (6)270 of 3
(1024(H400)) (2) (90) (30)
(3072(HC00))
(5)225 135
180 180 (3) 180
(2048(H800)) (4) (60)
Pr. 360 = "1" Pr. 360 = "7" Pr. 360 = "119"
CAUTION
⋅ Values in parentheses indicate binary data entered from the terminals. Even if the position pulse monitor (Pr. 52 DU/PU main
display data selection = 19) is selected, the data monitored is not the number of stop positions but is 0 to 65535 pulses.
⋅ FR-A7AX parameters (Pr. 300 to Pr. 305) are invalid. (Valid when Pr. 360 = "0") 4
⋅ Terminal DY (data read timing input signal) is invalid during vector control. (The position data is downloaded at the start of
orientation.)
PARAMETERS

⋅ Internal stop position command is given even if "1" (external stop position command) is set in Pr. 350 when an option card (FR-
A7AX) is not mounted or Pr. 360 = "0".

199
Motor brake and stop operation

• Relationship between stop position command and 16-bit data

Pr. 350 Operation
Pr. 360
Stop position 16 bit data
16 bit data selection Stop position command Speed command
command selection (FR-A7AX)
0: speed command Internal (Pr. 356) Speed command 16 bit data
0:internal 1, 2 to 127: position External command
Internal (Pr. 356) Invalid
command (or PU)
0: speed command Internal (Pr. 356) Speed command 16 bit data
1: external External
1, 2 to 127: position External command
(Internal when the FR-A7AX is not Position command
command (or PU)
mounted (Pr. 356))

3) Pr. 361 Position shift (initial value "0")

The stop position is a position obtained by adding the setting value of Pr. 361 to the position command.
<Position shift function>
Shift the origin using a compensation value without changing the origin of the position detector (encoder).
REMARKS
• When orientation control is valid using Pr. 350 Stop position command selection with the FR-A7AP/FR-A7AL (option) mounted, the
rotation direction of encoder is displayed on the rotation direction display of the PU (FR-DU07/FR-PU04/FR-PU07).
Set the parameter so that turning on the STF signal displays FWD or turning on the STR signal displays REV.

(4) Monitor display change

Monitor Remarks
When "19" is set in Pr. 52 , position pulse monitor is displayed instead of output voltage monitor
Position pulse monitor
of the PU. (Displayed only when the FR-A7AP/FR-A7AL (option) is mounted.)
When "22" is set in Pr. 52 , orientation status is displayed instead of output voltage monitor of
the PU. (Displayed only when the FR-A7AP/FR-A7AL (option) is mounted.)
0: Other than orientation operation or orientation speed is not reached
1: Orientation speed is reached
2: Creep speed is reached
Orientation status* 3: Position loop is reached
4: Orientation complete
5: Orientation fault (pulse stop)
6: Orientation fault (orientation limit)
7: Orientation fault (recheck)
8: Continuous multi-point orientation
* Invalid during vector control. ("0" is always displayed )

(5) Pr. 357 Orientation in-position zone (initial value "5")

• The positioning width for orientation stop can be set. Example of operation
The initial setting of Pr. 357 is "5". To change the Δθ
Set
value, finely adjust with ±10 increments, and make
fine adjustment.
• If the position detection value from the encoder
enters ±Δθ during orientation stop, the orientation
360
complete signal (ORA) will be output. Pr. 357
Pr.369
four times
Number of encoder pulses

200
 Motor brake and stop operation

(6) Orientation operation (under V/F control, Advanced magnetic flux vector control)
Orientation during running
1) When the orientation command (X22) is input, the motor speed decreases to the orientation speed set in Pr. 351
Orientation speed . (Pr. 351 initial value: 2Hz)
2) After the speed reaches the orientation speed, the speed decreases to the creep speed set in Pr. 352 Creep speed
as soon as the current position pulse reaches the creep switchover position set in Pr. 353 Creep switchover position
(Pr. 352 initial value:0.5Hz, Pr. 353 initial value: 511)
3) Moreover, as soon as the current position pulse reaches the set position loop switchover position in Pr. 354 Position
loop switchover position , control is changed to position loop. (Pr. 354 initial value: 96)
4) After switching to position loop, the inverter decelerates and stops with DC injection brake as soon as the current
position pulse has reached the DC injection brake start position set in Pr. 355 DC injection brake start position. (Pr. 355
initial value: 5)
5) When the position pulse has stopped within the in-position zone set in Pr. 357 Orientation in-position zone , the
orientation complete signal (ORA) is output after the completion signal output delay time set in Pr. 363 Completion
signal output delay time has elapsed. If the motor does not stop within the in-position zone due to external force, etc.,
the orientation complete signal is turned off after the time set in Pr. 363 Completion signal output delay time has
elapsed. (Pr. 357 initial value: 5)
6) If the orientation is not completed continuously for the time set in Pr. 365 Orientation limit after passing the creep
switchover position, the orientation fault signal (ORM) is output.
7) When the motor stops before the position pulse reaching the in-position zone due to external force after orientation
start and orientation complete signal (ORA) is not output, orientation fault signal (ORM) is output after the time set in
encoder stop check time set in Pr. 364 Encoder stop check time has elapsed. Moreover, the orientation complete signal
(ORA) is turned off after the time set in Pr. 363 Completion signal output delay time has elapsed if the position pulse is
outside the in-position zone due to external force, etc. after outputting the orientation complete signal (ORA), and
the orientation fault signal (ORM) is output if the orientation has not completed within the time set in Pr. 364 Encoder
stop check time .
8) When the start signal (STF or STR) is turned off with the orientation command on after outputting the orientation
complete signal (ORA) and orientation fault signal (ORM), the orientation complete signal (ORM) or orientation fault
signal (ORM) is output again after recheck time set in Pr. 366 Recheck time has elapsed.
9) The orientation complete signal (ORA) and orientation fault signal (ORM) are not output when the orientation
command is off.
REMARKS
• When the orientation command is off with the start signal on, the speed accelerates to the command speed.

Orientation Position loop

speed Origin
Orientation stop position command
DC injection brake
Creep switchover position Position loop switchover position
Creep
speed
• If the hunting of the motor shaft occurs, set a larger value in Pr. 354 Position loop switchover position or a smaller value in Pr. 352
Creep speed to prevent it.
• Action time chart

Orientation speed (set with Pr. 351 )

4
Creep speed (set with Pr. 352 )
Main spindle speed (encoder) 1)
Pr. 351 2) 3) 4)
PARAMETERS

Pr. 352
0 Time
Start signal (STF, STR) ON OFF

Orientation command (X22) OFF OFF

ON
Creep switchover position
(set with Pr. 353)

Current position signal DC injection Position loop switchover

brake start (set with Pr. 354 )
position
(set with Pr. 355 ) Stop position command
Origin signal
DC injection brake OFF ON OFF

Orientation complete signal (ORA) OFF 5) ON OFF

201
Motor brake and stop operation

Orientation from stop

After turning on the orientation command (X22), turning on the start signal will increase the motor speed to the
orientation speed set in Pr. 351 Orientation speed, then orientation operation same as when "orientation during running"
is performed.
Note that, DC injection brake is operated if the position signal is within the DC injection brake start position.
• Action time chart
Main spindle speed (encoder) Orientation speed (orientation switchover speed)

Pr. 351 Creep speed (orientation deceleration ratio)

Pr. 352
Time
Start signal (STF, STR) OFF ON OFF

Orientation command (X22) OFF ON OFF

DC injection brake OFF ON OFF

Orientation complete signal (ORA) OFF ON OFF

Continuous multi-point orientation

Orientation command and orientation with STF/STR on
(Orientation in servo in status)

Main spindle speed (encoder) Orientation speed (orientation switchover speed)

Creep speed (orientation deceleration ratio)
Pr. 351
Pr. 352

Start signal ON

Orientation command ON

Orientation complete signal Servo-in Servo-in

ON ON
DY
50ms or more is necessary
Position signal
Position command latch Position command latch
• Read the position data at starting up of DY (refer to the FR-A7AX instruction manual ).
• When the position signal is within the creep switchover position, the speed starts up to the creep speed not to the
orientation speed.
• When the position signal is not within the creep switchover position, the speed starts up to the orientation speed.
• The DC injection brake is operated if the position signal is within the DC injection brake start position.
• 16-bit data with the FR-A7AX is valid only when the DY signal is on.
CAUTION
• The encoder should be coupled with the motor shaft or main spindle oriented with a speed ratio of 1 to 1 without any mechanical
looseness.
• DC injection brake operates when orientation stop is made. Release the DC injection brake in a time as short as possible (within
several seconds) since continuous operation of the DC injection brake will cause the motor to overheat, leading to burnout.
• Since no servo lock function is available after orientation stop, provide a holding mechanism such as mechanical brake or knock
pin when secure holding of a main spindle is required.
• To ensure correct positioning, the encoder must be set in the proper rotation direction and the A and B phases connected correctly.
• When the pulse signal from the encoder stops due to the encoder signal loss, etc. during orientation, the orientation fault signal
(ORM) may be output.
• When the DC injection brake is set to disabled using parameter for DC injection brake adjustment (voltage, frequency, speed, time)
when performing orientation control, orientation operation can not be completed. Always set the DC injection brake enabled.
• To terminate orientation, the start signal (STF or STR) must be first switched off and the orientation signal (X22) must be switched
off. As soon as this orientation signal is switched off, orientation control ends.(Depending on the Pr. 358 Servo torque selection
setting, orientation status continues if the orientation signal remains on even if DC injection brake is released at turning off of the
start signal. Therefore, the orientation status of the monitor function is not 0.)
• When retry function of Pr. 358 Servo torque selection is selected, the retry operation is performed three times including the first orientation.
• When performing orientation control, make proper setting of Pr. 350 Stop position command selection and Pr. 360 16 bit data selection
(external position command selection). If the values set are incorrect, proper orientation control will not be performed.
• When Pr. 11 DC injection brake operation time = "8888" (DC injection brake external selection), DC injection brake does not operate if the
X13 signal is not turned on. Note that the DC injection brake is applied under orientation control regardless of the X13 signal status.
• When orientation control is exercised, PID control is invalid.

202
 Motor brake and stop operation

Servo torque selection (Pr. 358 )

Valid only under V/F control and Advanced magnetic flux vector control.
Pr. 358 Setting
Remarks
Function 0 1 2 3 4 5 6 7 8 9 10 11 12 13
1) Servo torque function selection
: With servo torque function
until output of the orientation × × × × × × ×: Without servo torque function
complete signal (ORA)
: With retry function
2) Retry function selection × × × × × × × × × × × × ×: Without retry function
3) Output frequency is compensated
: With frequency compensation
when the motor stops outside the × × × × × × × × ×: Without frequency compensation
in-position zone
4) DC injection brake and servo
torque selection when the position
: With DC injection brake
pulse comes off the in-position × × × × ×: With servo torque
zone after output of the orientation
complete signal (ORA)
5) End switch selection of the DC : When the start signal (STF, STR) or
orientation command is turned off
injection brake and orientation × × × × × × × ×: When the orientation command is
complete signal (ORA) turned off
: Turns off the completion signal when
6) Completion signal off selection the motor stops outside of the in-
when the position pulse comes off position zone
the in-position zone after output of × × × × × × × × × ×: Completion signal remains on even if
the position pulse comes off the
the orientation complete signal completion zone
(ORA) (orientation fault signal (ORM) is not
output)

REMARKS
• When the orientation command is off with the start signal on, the speed accelerates to the command speed.
• When the motor shaft stops outside of the set setting range of stop position, the motor shaft is returned to the stop position by
servo torque function (if enough torque is generated).
1) Servo torque function selection until output of the orientation complete signal
Whether servo torque is available or not is selected using Pr. 358 Servo torque selection. Servo torque is not generated
if the current position pulse is in between the orientation stop position and DC injection brake start position. Although,
the shaft is retained by the DC injection brake, servo torque is generated to return the shaft within the width if the
shaft moves out of the width by external force, etc. Once the orientation complete signal (ORA) is output, the motor
runs according to the setting made in 4).
2) Retry function selection
Select retry function using Pr. 358 Servo torque selection . Note that servo torque function can not be used together.
When the motor shaft is not stopped within the in-position zone when the motor stop is checked, orientation
operation is performed again by retry function.
With this retry function, three orientations including the first one are performed. More than three times retry
operations are not made. (The orientation fault signal (ORM) is not output during retry operation)
3) Frequency compensation function when the motor stops outside the orientation in-position zone
When the motor stops before entering the in-position zone due to external force, etc., output frequency is increased
to move the shaft to the orientation stop position. The output frequency is gradually increased to the creep speed of 4
Pr. 352 Creep speed .
Note that retry function can not be used together.
PARAMETERS

4) DC injection brake and servo torque selection when the position pulse comes off the in-position zone after output of
the orientation complete signal (ORA)
If the position pulse comes off the orientation in-position width, you can select a setting either fixing a shaft with the
DC injection brake or returning the motor to the orientation stop position with servo torque.
5) Orientation operation end switch operation selection between DC injection brake or servo torque
When ending the orientation operation, turn off the start signal (STF or STR), then turn off the orientation command
(X22). At this time, you can select when to turn off the orientation complete signal (ORA) from between at turning off
of the start signal or turning off of the orientation command signal.
6) Selection of completion signal off or on when the motor stops outside of the in-position zone after output of the
orientation complete signal (ORA)
You can select the mode to turn off the completion signal or keep the completion signal on (orientation fault signal
(ORM) is not output) when the motor stops outside of the in-position zone.

203
Motor brake and stop operation

Position loop gain (Pr. 362 )

When servo torque function is selected using Pr. 358 Servo torque selection , output frequency for generating servo
torque increases to the creep speed of Pr. 352 Creep speed gradually according to the slope set in Pr. 362 Orientation
position loop gain .
Although the operation becomes faster when the value is increased, a machine may hunt, etc.

(7) Orientation operation explanation (during vector control)

Setting the rotation direction (Pr. 393 Orientation selection )

Rotation
Pr. 393 Setting Remarks
Direction
0
Pre-orientation Orientation is executed from the current rotation direction.
(initial value)
Orientation is executed from the forward rotation direction.
Forward rotation
1 (If the motor is running in reverse, orientation is executed from the
orientation
forward rotation direction after deceleration.)
Orientation is executed from the reverse rotation direction.
Reverse rotation
2 (If the motor is running in forward, orientation is executed from the
orientation
reverse rotation direction after deceleration.)

1) Orientation from the current rotation direction

• When the orientation command (X22) is input, the motor speed will
decelerate from the running speed to Pr. 351 Orientation speed.
Speed
At the same time, the orientation stop position command will be read in. (forward rotation)
(The stop position command is determined by the setting of Pr. 350 and Pr. [t]
360. Refer to the right chart.)
• When the orientation switchover speed is reached, the encoder Z phase X22 OFF ON
ORA OFF ON
pulse will be confirmed, and the mode will change from speed control to
position control (Pr. 362 Orientation position loop gain ).
• The distance to the orientation stop position is calculated at switching of
the control, and the motor decelerates and stops with a set deceleration Speed [t]
(reverse rotation)
pattern (Pr. 399) and the orientation (servo lock) state will be entered.
• When entered in the Pr. 357 Orientation in-position zone, the orientation
complete signal (ORA) will be output. X22 OFF ON
• The zero point position (origin) can be moved using Pr. 361 Position shift . ORA OFF ON

WARNING
If the orientation command (X22) is turned off while the start signal is input, the motor will accelerate toward the
speed of the current speed command. Thus, to stop, turn the forward rotation (reverse rotation) signal off.

2) Orientation from the forward rotation direction

• This method is used to improve the stopping precision and maintain the
mechanical precision when the backlash is large.
Speed
• If the motor is running in the forward rotation direction, it will make an
(forward rotation)
orientation stop with the same method as "orientation from the current [t]
rotation direction".
• If the motor is running in reverse, it will decelerate, the rotation direction X22
ORA
will be changed to forward run, and then orientation stop will be executed.

Speed [t]
(reverse rotation)

X22
ORA

204
 Motor brake and stop operation

3) Orientation from the reverse rotation direction

• If the motor is running in the reverse rotation direction, it will make an
orientation stop with the same method as "orientation from the current
rotation direction". Speed
(forward rotation)
• If the motor is running in forward, it will decelerate, the rotation direction
[t]
will be changed to reverse run, and then orientation stop will be executed.
X22
ORA

Speed [t]
(reverse rotation)

X22
ORA

CAUTION
• The encoder should be coupled with the motor shaft oriented with a speed ratio of 1 to 1 without any mechanical looseness.
• To ensure correct positioning, the encoder must be set in the proper rotation direction and the A and B phases connected
correctly.
• Orientation may not be completed if the pulse signals are not received from the encoder during orientation due to a break in the
cable or the like.
• To terminate orientation, the start signal (STF or STR) must be first switched off and the orientation signal (X22) must be switched
off. As soon as this orientation signal is switched off, orientation control ends.
• When performing orientation control, make proper setting of Pr. 350 Stop position command selection and Pr. 360 16 bit data selection.
If the values set are incorrect, proper orientation control will not be performed.
• When orientation control is exercised, PID control is invalid.

REMARKS
If "E.ECT" (no encoder signal) is displayed causing the inverter to trip when the orient signal (X22) is ON, check for a single loss in
the cable of the Z phase of the encoder.
Servo rigidity adjustment (Pr. 362, Pr. 396 to Pr. 398)
•To increase the servo rigidity *1 during orientation stop using Pr. 396 or Pr. 397 , adjust with the following procedures.
1) Increase the Pr. 362 Orientation position loop gain value to the extent that rocking *2 does not occur during
orientation stop.
2) Increase Pr. 396 and Pr. 397 at the same rate.
Generally adjust Pr. 396 in the range from 10 to 100, and Pr. 397 from 0.1 to 1.0s.
(Note that these do not need to be set to the same rate.)
<Example>
When the Pr. 396 value is multiplied by 1.2, divide the Pr. 397 value by 1.2.
If vibration occurs during orientation stop, the scale cannot be raised any higher.
3) Pr. 398 is the lag/advance compensation gain.
The limit cycle *3 can be prevented by increasing the value, and the running can be stopped stably. However, the
torque in regard to the position deviation will drop, and the motor will stop with deviation.
POINT 4
Application of lag/advance control and PI control
PI control can be applied by setting Pr. 398 to 0. Normally, the lag/advance control is selected. Note that PI control
PARAMETERS

should be used when using a machine with a high spindle stationary friction torque and requires a stopping position
precision.

*1 Servo rigidity: This is the response when a position control loop is configured.
When the servo rigidity is raised, the holding force will increase, the running will stabilize, but vibration will occur easily.
When the servo rigidity is lowered, the holding force will drop, and the setting time will increase.
*2 Rocking: Movement in which return occurs if the stopping position is exceeded.
*3 Limit cycle: This is a phenomenon that generates ± continuous vibration centering on the target position.

205
Motor brake and stop operation

Pr. 399 Orientation deceleration ratio (initial value is 20)

• Make adjustments as shown below according to the orientation status.
(Refer to the Pr. 396 and Pr. 397 details also.)
Generally adjust Pr. 362 in the range from 5 to 20, and Pr. 399 from 5 to 50.
Adjustment Procedure
Phenomenon REMARKS
Pr. 396 Pr. 397 Pr. 362 Pr. 399
Rocking occurs during 3) 3) 2) 1) 1. :Increase the parameter setting value.
stopping :Do not change the parameter setting
The orientation time is long 2) 1) value.
:Decrease the parameter setting value.
Hunting occurs when 2) 2) 1) 2. The numbers 1) , 2) and 3) in the table show
stopping
the order of priority for changing the
The servo rigidity during 1) 1) 2) parameters setting value.
stopping is low

CAUTION
Or, if the motor does forward/reverse reciprocation operation , the parameter setting value for the orientation detector
installation direction may be incorrect. Review Pr. 393 Orientation selection (refer to page 197) and Pr. 359 Encoder rotation direction
(refer to page 196).

Pr. 351 Orientation speed (initial value: 2Hz)

• Set the speed when switching between the speed control mode and the position control mode is performed under
orientation operation.
Decreasing the set speed enables stable orientation stop. Note that the orientation time will increase.

[Hz]
Frequency

Pr.351 Orientation speed Decelerate according to the deceleration ratio of Pr. 399

Orientation command completion

Time[t]

Orientation start OFF ON

(X22)
Orientation complete ON
(ORA)

Encoder Z phase pulse

REMARKS
When "19" is set in Pr. 52 DU/PU main display data selection , position pulse monitor is displayed instead of PU output voltage
monitor.

206
 Function assignment of external terminal and control

4.15 Function assignment of external terminal and control

Purpose Parameter that must be Set Refer to Page
Input terminal function
Assign function to input terminal Pr. 178 to Pr. 189 207
selection
Set MRS signal (output shutoff) to
MRS input selection Pr. 17 210
normally closed contact specification
Make the second (third) function
RT signal function validity
valid only during constant speed Pr. 155 211
condition selection
operation
Assign start signal and forward/ Start signal (STF/STR)
Pr. 250 212
reverse command to other signals operation selection
Output terminal function
Assign function to output terminal Pr. 190 to Pr. 196 215
assignment
Up-to-frequency sensitivity
Pr. 41 to Pr. 43, Pr. 50, Pr. 116,
Detect output frequency Output frequency detection 222
Pr. 865
Low speed detection
Output current detection Pr. 150 to Pr. 153, Pr. 166,
Detect output current 224
Zero current detection Pr. 167
Remote output function Remote output Pr. 495 to Pr. 497 226
Detect output torque Output torque detection Pr. 864 225

4.15.1 Input terminal function selection (Pr. 178 to Pr. 189)

Use these parameters to select/change the input terminal functions.

Parameter Initial
Name Initial Signal Setting Range
Number Value
0 to 9, 12 to 20, 22 to 28, 42
178 STF terminal function selection 60 STF (forward rotation command) to 44, 60, 62, 64 to 69, 74,
9999
0 to 9, 12 to 20, 22 to 28, 42
179 STR terminal function selection 61 STR (reverse rotation command) to 44, 61, 62, 64 to 69, 74,
9999
180 RL terminal function selection 0 RL (low-speed operation command)
181 RM terminal function selection 1 RM (middle-speed operation command) 0 to 9, 12 to 20, 22 to 28, 42
182 RH terminal function selection 2 RH (high speed operation command) to 44, 62, 64 to 69, 74, 9999
183 RT terminal function selection 3 RT (second function selection)
0 to 9, 12 to 20, 22 to 28, 42
184 AU terminal function selection 4 AU (terminal 4 input selection)
to 44, 62 to 69, 74, 9999
185 JOG terminal function selection 5 JOG (Jog operation selection)
CS (selection of automatic restart
186 CS terminal function selection 6
after instantaneous power failure) 0 to 9, 12 to 20, 22 to 28, 42
187 MRS terminal function selection 24 MRS (output stop) to 44, 62, 64 to 69, 74, 9999
188 STOP terminal function selection 25 STOP (start self-holding selection)
189 RES terminal function selection 62 RES (inverter reset)
4
(1) Input terminal function assignment
PARAMETERS

⋅ Use Pr. 178 to Pr. 189 to set the functions of the input terminals.
⋅ Refer to the following table and set the parameters:
Signal Refer to
Setting Function Related Parameters
Name Page
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
Pr. 59 = 0 (initial value) Low-speed operation command 148
Pr. 232 to Pr. 239
0 RL
Pr. 59 = 1, 2 *1 Remote setting (setting clear) Pr. 59 152
Pr. 270 = 1, 3 *2 Stop-on-contact selection 0 Pr. 270, Pr. 275, Pr. 276 190
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr.
Pr. 59 = 0 (initial value) Middle-speed operation command 148
1 RM 232 to Pr. 239
Pr. 59 = 1, 2 *1 Remote setting (deceleration) Pr. 59 152
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
Pr. 59 = 0 (initial value) High-speed operation command 148
2 RH Pr. 232 to Pr. 239
Pr. 59 = 1, 2 *1 Remote setting (acceleration) Pr. 59 152

207
Function assignment of external terminal and control

Signal Refer to
Setting Function Related Parameters
Name Page
Pr. 44 to Pr. 51, Pr. 450 to Pr. 463,
Second function selection 211
3 RT Pr. 569, Pr. 832, Pr. 836, etc.
Pr. 270 = 1, 3 *2 Stop-on-contact selection 1 Pr. 270, Pr. 275, Pr. 276 190
4 AU Terminal 4 input selection Pr. 267 263
5 JOG Jog operation selection Pr. 15, Pr. 16 150
Selection of automatic restart after instantaneous power Pr. 57, Pr. 58, Pr.162 to Pr.165,
243
failure, flying start Pr. 299, Pr. 611
6 CS
Pr. 57, Pr. 58, Pr.135 to Pr.139,
Electronic bypass function 346
Pr. 159
7 OH External thermal relay input *3 Pr. 9 165
15-speed selection (combination with three speeds RL, RM, Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
8 REX 148
RH) Pr.232 to Pr.239
9 X9 Third function selection Pr. 110 to Pr. 116 211
12 X12 PU operation external interlock Pr. 79 290
13 X13 External DC injection brake operation start Pr. 10 to Pr. 12 185
Pr. 127 to Pr. 134, Pr. 575 to Pr.
14 X14 PID control valid terminal 338
577
15 BRI Brake opening completion signal Pr. 278 to Pr. 285 193
PU-External operation switchover (turning on X16 selects
16 X16 Pr. 79, Pr. 340 296
external operation)
Load pattern selection forward/reverse rotation boost (turning
17 X17 on X17 changes the output characteristics to constant torque Pr. 14 144
load)
18 X18 V/F switchover (V/F control is performed when X18 is ON.) Pr. 80, Pr. 81, Pr. 800 75, 131
19 X19 Load torque high-speed frequency Pr. 270 to Pr. 274 351
20 X20 S-pattern acceleration/deceleration C switching terminal Pr. 380 to Pr. 383 158
22 X22 Orientation command *4, *6 Pr. 350 to Pr. 369 196
23 LX Pre-excitation/servo on *5 Pr. 850 185
Output stop Pr. 17 210
24 MRS Pr. 57, Pr. 58, Pr.135 to Pr.139,
Electronic bypass function 346
Pr. 159
25 STOP Start self-holding selection ⎯ 212
26 MC Control mode changing Pr. 800 75
27 TL Torque limit selection Pr. 815 83
28 X28 Start-time tuning start external input Pr. 95 181
42 X42 Torque bias selection 1 *6 Pr. 840 to Pr. 845 97
43 X43 Torque bias selection 2 *6 Pr. 840 to Pr. 845 97
44 X44 P/PI control switchover (turning on X44 selects P control) Pr. 820, Pr. 821, Pr. 830, Pr. 831 88
Forward rotation command
60 STF ⎯ 212
(assigned to STF terminal (Pr. 178) only)
Reverse rotation command
61 STR ⎯ 212
(assigned to STR terminal (Pr. 179) only)
62 RES Inverter reset ⎯ ⎯
63 PTC PTC thermistor input (assigned to AU terminal (Pr. 184) only) Pr. 9 165
64 X64 PID forward/reverse action switchover Pr. 127 to Pr. 134, Pr. 5 338
PU/NET operation switchover (turning on X65 selects PU
65 X65 Pr. 79, Pr. 340 297
operation)
External/NET operation switchover (turning on X66 selects
66 X66 Pr. 79, Pr. 340 297
NET operation)
Command source switchover (turning on X67 makes Pr. 338
67 X67 Pr. 338, Pr. 339 299
and Pr. 339 commands valid)
68 NP Simple position pulse train sign *6 Pr. 291, Pr. 419 to Pr. 430, Pr. 464 120
69 CLR Simple position droop pulse clear *6 Pr. 291, Pr. 419 to Pr. 430, Pr. 464 120
74 X74 Magnetic flux decay output shutoff signal ⎯ 214
9999 ⎯ No function ⎯ ⎯
*1 When Pr. 59 Remote function selection = "1 or 2", the functions of the RL, RM and RH signals change as listed above.
*2 When Pr. 270 Stop-on contact/load torque high-speed frequency control selection = "1 or 3", the functions of the RL and RM signals change as listed above.
*3 The OH signal turns on when the relay contact "opens".
*4 The FR-A7AX (16-bit digital input) is needed to externally input a stop position under orientation control.
*5 Servo ON is valid during position control under vector control operation.
*6 Available only when used with the FR-A7AP/FR-A7AL (option).

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 Function assignment of external terminal and control

REMARKS
⋅ Same function can be assigned to two or more terminals. In this case, the logic of terminal input is OR.
⋅ The priorities of the speed commands are in order of jog > multi-speed setting (RH, RM, RL, REX) > PID (X14).
⋅ When the PU operation external interlock (X12) signal is not assigned at the Pr. 79 Operation mode selection setting of "7", the
MRS signal shares this function.
⋅ Same signal is used to assign multi-speeds (7 speeds) and remote setting. They cannot be set individually.
(Same signal is used since multi-speed (7 speeds) setting and remote setting are not used to set speed at the same time.)
⋅ When V/F switching (X18) signal and load pattern selection forward rotation reverse rotation boost (X17) signal are not
assigned, the RT signal shares this function. (Pr. 81 Number of motor poles = "12, 14, 16, 18, 20")
In this case, V/F control is controlled by the second function.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Also
check that wiring is correct, since the terminal name and the signal function became different.
Set parameters after confirming the function of each terminal.

4
PARAMETERS

209
Function assignment of external terminal and control

4.15.2 Inverter output shutoff signal (MRS signal, Pr. 17)

The inverter output can be shut off from the MRS signal. The logic of the MRS signal can also be selected.

Parameter Initial Setting

Name Description
Number Value Range
0 Normally open input
2 Normally closed input (NC contact input specifications)
17 MRS input selection 0 External terminal: Normally closed input
4 (NC contact input specifications)
Communication: Normally open input

(1) Output shutoff signal (MRS signal)

Motor coasts
to stop
⋅ Turning on the output shutoff signal (MRS) during inverter running shuts
off the output immediately.
⋅ Terminal MRS may be used as described below.
(a) When mechanical brake (e.g. electromagnetic brake) is used to stop
motor
Time The inverter output is shut off when the mechanical brake operates.
(b) To provide interlock to disable operation by the inverter
With the MRS signal on, the inverter cannot be operated if the start
MRS signal ON
signal is entered into the inverter.
STF (STR)
signal ON (c) Coast the motor to a stop
When the start signal is turned off, the inverter decelerates the motor
(Initial
Setting value "0"
value)
Setting value "2" to a stop in the preset deceleration time, but when the MRS signal is
Output Inverter Output Inverter turned on, the motor coasts to a stop
stop stop (2) MRS signal logic inversion (Pr. 17 = "2")
MRS MRS
SD SD
⋅ When Pr. 17 is set to "2", the MRS signal (output stop) can be changed
to the normally closed (NC contact) input specification. When the MRS
signal turns on (opens), the inverter shuts off the output.
(3) Assign a different action for each MRS signal input from communication and external terminal
(Pr. 17 = "4")
⋅ When Pr. 17 is set to "4", the MRS signal from external terminal (output stop) can be changed to the normally
closed (NC contact) input, and the MRS signal from communication can be changed to the normally open (NO
contact) input.
This function is useful to perform operation by communication with MRS signal from external terminal remained on.
Pr. 17 Setting
External MRS Communication MRS
0 2 4
OFF OFF Operation enabled Output shutoff Output shutoff
OFF ON Output shutoff Output shutoff Output shutoff
ON OFF Output shutoff Output shutoff Operation enabled
ON ON Output shutoff Operation enabled Output shutoff

REMARKS
⋅ The MRS signal is assigned to the terminal MRS in the initial setting. By setting "24" in any of Pr. 178 to Pr. 189 (input terminal
function selection), the MRS signal can be assigned to the other terminal.
⋅ When using an external terminal to input the MRS signal, the MRS signal shuts off the output in any of the operation modes.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 207

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 Function assignment of external terminal and control

4.15.3 Condition selection of function validity by the second function selection signal (RT) and
third function selection signal (X9) (RT signal, X9 signal, Pr. 155)
You can select the second (third) function using the RT(X9) signal.
You can also set the condition (reflection condition) where the second function and third function become valid.

Parameter Name Initial Value Setting Range Description

Number
Second (third) function is immediately valid with on of the
0
RT(X9) signal.
RT signal function validity
155 0 Second (third) function is valid only during the RT (X9)
condition selection
10 signal is on and constant speed operation. (invalid during
acceleration/deceleration)
⋅ When the RT signal turns on, the second function becomes valid.
⋅ When the X9 signal turns on, the third function becomes valid.
For the X9 signal, set "9" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the function.
⋅ The second (third) function has the following applications.
(a)Switching between normal use and emergency use
(b)Switching between heavy load and light load
(c)Changing of acceleration/deceleration time by broken line acceleration/deceleration
(d)Switching of characteristic between main motor and sub motor
Second function connection diagram Second acceleration/deceleration time example
Setting value "0" (initial value)
Inverter
Output frequency

Start STF/STR
Second Acceleration
function RT
selection
time is reflected
Time
High speed RH
Middle speed RM RT

SD RH
RM

⋅ When the RT signal or X9 signal is ON, the following functions are selected at the same time.
Function First Function Second Function Third Function Refer to
Parameter Number Parameter Number Parameter Number Page
Torque boost Pr. 0 Pr. 46 Pr. 112 129
Base frequency Pr. 3 Pr. 47 Pr. 113 142
Acceleration time Pr. 7 Pr. 44 Pr. 110 155
Deceleration time Pr. 8 Pr. 44, Pr. 45 Pr. 110, Pr. 111 155
Electronic thermal relay
Pr. 9 Pr. 51 ⎯ 165
function*
Stall prevention Pr. 22 Pr. 48, Pr. 49 Pr. 114, Pr. 115 135
Applied motor* Pr. 71 Pr. 450 ⎯ 169
Pr. 80 to Pr. 84, Pr. 89, Pr. 453 to Pr. 457, Pr. 569,
Motor constant* ⎯ 171
Pr. 90 to Pr. 94, Pr. 96, Pr. 859 Pr. 458 to Pr. 462, Pr. 463, Pr. 860
Online auto tuning
Pr. 95 Pr. 574 ⎯ 181
selection*
Motor control method* Pr. 800 Pr. 451 ⎯ 75
4
Speed control gain Pr. 820, Pr. 821 Pr. 830, Pr. 831 ⎯ 88
Analog input filter Pr. 822, Pr. 826 Pr. 832, Pr. 836 ⎯ 269
Speed detection filter Pr. 823 Pr. 833 ⎯ 127
PARAMETERS

Torque control gain Pr. 824, Pr. 825 Pr. 834, Pr. 835 ⎯ 113
Torque detection filter Pr. 827 Pr. 837 ⎯ 127
* The function could be changed by switching the RT signal ON/OFF while the inverter is stopped.
If a signal is switched during the operation, the operation method changes after the inverter stops.

REMARKS
⋅ The RT signal is assigned to the RT terminal in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), the RT signal can be assigned to the other terminal.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 178 to Pr.189 (input terminal function selection) Refer to page 207

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Function assignment of external terminal and control

4.15.4 Start signal operation selection (STF, STR, STOP signal, Pr. 250)

You can select the operation of the start signal (STF/STR).

Select the stopping method (deceleration to stop or coasting) at turn-OFF of the start signal.
Use this function to stop a motor with a mechanical brake at turn-OFF of the start signal.
(Refer to page 189 for stop selection)

Description
Parameter Initial Setting
Name Stop operation
Number Value Range Start signal (STF/STR)
(Refer to page 189)
STF signal: Forward rotation The motor is coasted to a stop
start when the preset time elapses
0 to 100s
STR signal: Reverse rotation after the start signal is turned
start OFF. When the setting is any
STF signal: Start signal of 1000s to 1100s, the inverter
1000s to
STR signal: Forward/reverse coasts to a stop in (Pr. 250 -
1100s 1000)s.
rotation signal
250 Stop selection 9999
STF signal: Forward rotation
start
9999
STR signal: Reverse rotation When the start signal is turned
start OFF, the motor decelerates to
STF signal: Start signal stop.
8888 STR signal: Forward/reverse
rotation signal

(1) 2-wire type (STF, STR signal)

⋅ Two-wire type connections are shown below.
⋅ In the initial setting, the forward/reverse rotation signals (STF/STR) are used as start and stop signals. Turn ON
either of the forward and reverse rotation signals to start the motor in the corresponding direction. If both are turned
OFF (or ON) during operation, the inverter decelerates to a stop.
⋅ The speed setting signal may either be given by entering 0 to 10VDC across the speed setting input terminal 2 and
5, by setting the required values in Pr. 4 to Pr. 6 Multi-speed setting (high, middle, low speeds), etc. (For multi-speed
operation, refer to page 148)
⋅ When Pr. 250 is set to any of "1000 to 1100, 8888", the STF signal becomes a start command and the STR signal a
forward/reverse command.

Forward
STF Start signal STF
rotation start
Reverse STR Inverter Forward/ STR Inverter
rotation start SD reverse SD
signal
10 10
2 2
5 5
Forward

Forward
rotation

rotation
Output frequency

Output frequency

Time Time
Reverse

Reverse
rotation

rotation

ON ON
STF STF
STR ON ON
STR
2-wire connection example (Pr. 250 = "9999") 2-wire connection example (Pr. 250 = "8888")

REMARKS
⋅ When Pr. 250 is set to any of "0 to 100, 1000 to 1100", the motor coasts to a stop if the start command is turned OFF. (Refer to
page 189)
⋅ The STF and STR signals are assigned to the STF and STR terminals in the initial setting. The STF signal can be assigned to
Pr. 178 STF terminal function selection and the STR signal to Pr. 179 STR terminal function selection only.

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 Function assignment of external terminal and control

(2) 3-wire type (STF, STR, STOP signal)

⋅ Three-wire type connections are shown below.
⋅ The start self-holding selection becomes valid when the STOP signal is turned ON. In this case, the forward/
reverse rotation signal functions only as a start signal.
⋅ If the start signal (STF or STR) is turned ON and then OFF, the start signal is held and makes a start. When
changing the direction of rotation, turn STR (STF) ON once and then OFF.
⋅ To stop the inverter, turning OFF the STOP signal once decelerates it to a stop.

Forward Stop
Stop Start
rotation start
STF STF
Inverter Inverter
Reverse
rotation start STOP
STR

STOP STR
Forward rotation
/reverse rotation
SD SD
Reverse Forward

Reverse Forward
rotation

rotation
Output frequency
Output frequency

Time Time
rotation
rotation

ON ON ON
STF STF
ON
STR STR ON

STOP ON STOP ON
OFF OFF OFF OFF

Three-Wire Type Connection Example (Pr. 250 = "9999") Three-Wire Type Connection Example (Pr. 250 = "8888")

REMARKS
⋅ The STOP signal is assigned to the terminal STOP in the initial setting. By setting "25" in Pr. 178 to Pr. 189, the STOP signal can
also be assigned to the other terminal.
⋅ When the JOG signal is turned ON to enable jog operation, the STOP signal becomes invalid.
⋅ If the MRS signal is turned ON to stop the output, the self-holding function is not canceled.

(3) Start signal selection

Pr. 250 Setting Inverter Status

STF STR
0 to 100s, 9999 1000s to 1100s, 8888 4
OFF OFF Stop
Stop
OFF ON Reverse rotation
PARAMETERS

ON OFF Forward rotation Forward rotation

ON ON Stop Reverse rotation

♦ Parameters referred to ♦
Pr. 4 to Pr. 6 (Multi-speed setting) Refer to page 148
Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 207

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Function assignment of external terminal and control

4.15.5 Magnetic flux decay output shutoff signal (X74 signal)

Performing frequent start/stop (inching operation) with mechanical brake using output shutoff signal (MRS)
during Real sensorless vector control may cause an inverter fault (electronic thermal relay function fault: E.THT,
etc) due to residual magnetic flux and an error in monitor output (running speed, motor torque, load meter, torque
command, torque current command, motor output).
In such a case, use magnetic flux decay output shutoff signal (X74) as output shutoff signal.
Turning X74 signal on shuts off output after decaying motor residual magnetic flux.
⋅ For the X74 signal, set "74" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the function.
⋅ Operate a mechanical brake after turning X74 signal on.
⋅ When the MC is provided on the inverter output side, turn X74 signal on and open the MC after magnetic flux decay
operation time (refer to below) has elapsed.

Inverter output voltage shutoff timing

X74 signal MRS signal
X74 ON MRS ON
Magnetic flux decay
processing time*

Output voltage ON Output voltage ON

RUN ON RUN ON

Mechanical brake ON Mechanical brake ON

MC on the output side ON MC on the output side ON

Do not turn off MC

during this processing time

* Maximum time of magnetic flux decay operation

Motor Capacity(Pr. 80 setting) 5.5kW to 11kW 15kW to 30kW 37kW to 55kW
Magnetic flux decay
500ms 800ms 900ms
processing time

REMARKS
⋅ When performing operation other than Real sensorless vector control, turning X74 signal on immediately shuts off inverter
output.
⋅ During an automatic restart after instantaneous power failure or start-time online auto tuning under Real sensorless vector
control, turning X74 signal on immediately shuts off inverter output.
⋅ When some other factor affecting output shutoff (inverter alarm, MRS signal on, etc.) occurs during magnetic flux decay
operation, magnetic flux decay operation is stopped to immediately shut off output.
⋅ Refer to page 185 to perform the magnetic flux decay output shutoff without the X74 signal.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
⋅ Different from MRS signal, voltage is output during magnetic flux decay processing even if X74 signal turns on.
⋅ If the timing of mechanical brake opening is early, motor shaft may be forced to turn by a gravity drop or external force. If the
timing of mechanical brake opening is late, overcurrent, stall prevention operation or electronic thermal relay function may be
activated. Use output frequency detection signal (FU) or output current detection signal (Y12) to perform the mechanical brake
opening suitable for the machine.

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 Function assignment of external terminal and control

4.15.6 Output terminal function selection (Pr. 190 to Pr. 196)

You can change the functions of the open collector output terminal and relay output terminal.

Parameter Initial
Name Initial Signal Setting Range
Number Value
RUN terminal
190 0 RUN (inverter running)
function selection
SU terminal function 0 to 6, 8, 10 to 20, 25 to 28, 30 to
191 1 SU (up to frequency)
selection Open 36, 39, 41 to 47, 64, 70, 84, 90 to
IPF terminal function collector IPF (instantaneous power 99, 100 to 106, 108, 110 to 116,
192 2
selection output failure, undervoltage) 120, 125 to 128, 130 to 136, 139,
OL terminal function terminal 141 to 147, 164, 170, 184, 190 to
193 3 OL (overload alarm)
selection 199, 9999
FU terminal function FU (output frequency
194 4
selection detection)
ABC1 terminal 0 to 6, 8, 10 to 20, 25 to 28, 30 to
195 99 ALM (fault output) 36, 39, 41 to 47, 64, 70, 84, 85, 90,
function selection Relay
91, 94 to 99, 100 to 106, 108, 110
output
ABC2 terminal to 116, 120, 125 to 128, 130 to
terminal
196 9999 No function 136, 139, 141 to 147, 164, 170,
function selection
184, 190, 191, 194 to 199, 9999
(1) Output signal list
⋅ You can set the functions of the output terminals.
⋅ Refer to the following table and set the parameters: (0 to 99: Positive logic, 100 to 199: Negative logic)
Setting
Signal Related Refer to
Positive Negative Function Operation
Name Parameters Page
Logic Logic
Output during operation when the inverter
0 100 RUN Inverter running output frequency rises to or above Pr. 13 ⎯ 218
Starting frequency.
Output when the output frequency is reached
1 101 SU Up to frequency *1 Pr. 41 222
to the set frequency.
Output at occurrence of an instantaneous
Instantaneous power
2 102 IPF power failure or when undervoltage protection Pr. 57 243
failure/undervoltage
is activated.
Output while stall prevention function is Pr. 22, Pr. 23,
3 103 OL Overload alarm Pr. 66, Pr. 148, 135
activated. Pr. 149, Pr. 154
Output when the output frequency reaches
Output frequency
4 104 FU the frequency set in Pr. 42 (Pr. 43 for reverse Pr. 42, Pr. 43 222
detection
rotation). *3
Second output Output when the output frequency reaches
5 105 FU2 Pr. 50 222
frequency detection the frequency set in Pr. 50.
Third output frequency Output when the output frequency reaches
6 106 FU3 Pr. 116 222
detection the frequency set in Pr. 116.
Output when the electronic thermal relay
function cumulative value reaches 85% of the 4
Electronic thermal O/L trip level.
8 108 THP Pr. 9 167
relay pre-alarm (Electronic thermal relay function protection
(E.THT/E.THM) activates, when the value
PARAMETERS

reached 100%.)
Output when the PU operation mode is
10 110 PU PU operation mode Pr. 79 290
selected.
Output when the inverter power is turned on,
Inverter operation then output after reset process is completed
11 111 RY ⎯ 218
ready (when the inverter can be started by switching
the start signal on or while it is running).
Output when the output current is higher than
Output current
12 112 Y12 the Pr. 150 setting for longer than the time set Pr. 150, Pr. 151 224
detection
in Pr. 151.
Output when the output power is lower than
13 113 Y13 Zero current detection the Pr. 152 setting for longer than the time set Pr. 152, Pr. 153 224
in Pr. 153.

215
Function assignment of external terminal and control

Setting
Signal Related Refer to
Positive Negative Function Operation
Name Parameters Page
Logic Logic
Output when the feedback value falls below
14 114 FDN PID lower limit
the lower limit of PID control.
Output when the feedback value rises above Pr. 127 to Pr. 134,
15 115 FUP PID upper limit 338
the upper limit of PID control Pr. 575 to Pr. 577
PID forward/reverse Output when forward rotation is performed in
16 116 RL
rotation output PID control.
17 ⎯ MC1 Electronic bypass MC1
Used when the commercial power supply- Pr. 135 to Pr. 139,
18 ⎯ MC2 Electronic bypass MC2 346
inverter switchover function is used. Pr. 159
19 ⎯ MC3 Electronic bypass MC3
Output to open the brake when the brake Pr. 278 to Pr. 285,
20 120 BOF Brake opening request 193
sequence function is selected. Pr. 292
25 125 FAN Fan fault output Output at the time of a fan fault. Pr. 244 363
Output when the heatsink temperature
Heatsink overheat pre-
26 126 FIN reaches about 85% of the heatsink overheat ⎯ 391
alarm
protection providing temperature.
27 127 ORA Orientation complete *3 Pr. 350 to Pr. 366,
When orientation is valid Pr. 369, Pr. 393, 196
28 128 ORM Orientation fault *3 Pr. 396 to Pr. 399
Forward rotation Output when the motor is running in forward
30 130 Y30 220
output *3 direction.
Reverse rotation Output when the motor is running in reverse
31 131 Y31 ⎯ 220
output *3 direction.
Regenerative status Output in the regenerative status under
32 132 Y32 vector control operation.
220
output *3
Output during pre-excitation or operation
33 133 RY2 Operation ready 2 ⎯ 218
under Real sensorless vector control.
Output when the output frequency drops
34 134 LS Low speed output Pr. 865 222
below the Pr. 865 setting.
Output when the motor torque rises above
35 135 TU Torque detection Pr. 864 225
the Pr. 864 value.
Output when the number of droop pulses has
36 136 Y36 In-position *3 Pr. 426 123
fallen below the setting value.
Start time tuning
39 139 Y39 Output on completion of start-time tuning. Pr. 95, Pr. 574 181
completion
41 141 FB Speed detection
Output when the actual motor speed
Second speed Pr. 42, Pr. 50,
42 142 FB2 (estimated actual speed value) reaches the 222
detection Pr. 116
Pr. 42 (Pr. 50, Pr.116) setting.
43 143 FB3 Third speed detection
⋅ Output during forward rotation or the
reverse rotation signal is on.
⋅ Output at deceleration even during forward
rotation or the reverse rotation signal is off.
(Does not output during pre-excitation LX is
44 144 RUN2 Inverter running 2 on.) ⎯ 218
⋅ Output during the orientation command
signal (X22) is on.
⋅ Switched on when the servo is on (LX-ON)
under position control. (Switched off when
the servo is off (LX-OFF))
Inverter running and Output when the inverter is running and start
45 145 RUN3 ⎯ 218
start command is on command is on.
During deceleration at Output when the power failure-time
46 146 Y46 occurrence of power deceleration function is executed. Pr. 261 to Pr. 266 247
failure (retained until release)
During PID control Pr. 127 to Pr. 134,
47 147 PID Output during PID control. 338
activated Pr. 575 to Pr. 577
64 164 Y64 During retry Output during retry processing. Pr. 65 to Pr. 69 250
Output when the PID output interruption Pr. 127 to Pr. 134,
70 170 SLEEP PID output interruption 338
function is executed. Pr. 575 to Pr. 577
Position control Output when the servo is on (LX-ON) and Pr. 419, Pr. 428 to
84 184 RDY 120
preparation ready *3 ready to operate. Pr. 430

216
 Function assignment of external terminal and control

Setting
Signal Related Refer to
Positive Negative Function Operation
Name Parameters Page
Logic Logic
Output when any of the control circuit
capacitor, main circuit capacitor and inrush
90 190 Y90 Life alarm Pr. 255 to Pr. 259 364
current limit circuit or the cooling fan
approaches the end of its service life.
Fault output 3 Output when a fault occurs due to the circuit
91 191 Y91 ⎯ 221
(power-off signal) failure of the inverter wiring mistake.
Turned on and off alternately every time the
power saving average value is updated when Pr. 52, Pr. 54,
Energy saving average
92 192 Y92 the power saving monitor is used. Pr. 158, Pr. 891 to 256
value updated timing
Cannot be set to Pr. 195 and Pr. 196 (relay Pr. 899
output terminal).
Average current value and maintenance timer
Current average value value are output as pulses.
93 193 Y93 Pr. 555 to Pr. 557 368
monitor signal Cannot be set to Pr. 195 and Pr. 196 (relay
output terminal).
Output when the fault occurs. Continue
94 194 ALM2 Fault output 2 outputting the signal during inverter reset and ⎯ 221
stop outputting after reset status is finished. *2
Maintenance timer Output when Pr. 503 rises to or above the Pr.
95 195 Y95 Pr. 503, Pr. 504 367
signal 504 setting.
Output to the terminal when a value is set to
96 196 REM Remote output Pr. 495 to Pr. 497 226
the parameter.
When Pr. 875 = "0" (initial value), the signal is
output when the fault occurs.
When Pr. 875 = "1", the signal is output when
the inverter protective function is activated at
97 197 ER Alarm output 2 Pr. 875 254
occurrence of OHT/THM/PTC fault and
deceleration is started.
Output when other protective functions are
activated and the inverter trips.
Output when an alarm (fan failure or
98 198 LF Alarm output Pr. 121, Pr. 244 310, 363
communication error warning) occurs.
Output when the fault occurs. The signal
99 199 ALM Fault output ⎯ 221
output is stopped when the fault is reset.
9999 ⎯ No function ⎯ ⎯ ⎯

*1 Note that when the frequency setting is varied using an analog signal or of the operation panel (FR-DU07), the output of the SU (up to

frequency) signal may alternate on and off depending on that varying speed and the timing of the varying speed due to acceleration/deceleration
time setting. (The output will not alternate on and off when the acceleration/deceleration time setting is "0s".)
*2 When a power supply reset is performed, the fault output 2 signal (ALM2) turns off as soon as the power supply switches off.
*3 This function is valid when the FR-A7AP/FR-A7AL (option) is mounted.

REMARKS
⋅ The same function may be set to more than one terminal.
⋅ When the function is executed, the terminal conducts at the setting of any of "0" to "99", and does not conduct at the setting of
any of "100" to "199".
⋅ When Pr. 76 Fault code output selection = "1", the output signals of the terminals SU, IPF, OL and FU are switched as set in Pr. 76.
(When an inverter fault occurs, the signal output is switched to the fault code output.) 4
⋅ The output assignment of the terminal RUN and alarm output relay are as set above regardless of Pr. 76.

CAUTION
PARAMETERS

⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
⋅ Do not assign signals which repeat frequent ON/OFF to A1, B1, C1, A2, B2, C2. Otherwise, the life of the relay contact
decreases.

217
Function assignment of external terminal and control

(2) Inverter operation ready signal (RY, RY2 signal) and inverter running signal (RUN, RUN2,
RUN3 signal)
Under V/F control, Advanced magnetic flux
vector control
Power ON OFF
supply
ON OFF ⋅ When the inverter is ready to operate, the output of the
STF
operation ready signal (RY) is ON. (It is also on during
ON
RH inverter running.)
⋅ When the output frequency of the inverter rises to or above
Output frequency

DC injection brake Pr. 13 Starting frequency, the output of the inverter running
operation point signals (RUN, RUN2) is turned ON. During an inverter stop or
Pr. 13 DC injection
DC injection brake operation, the output is OFF.
Starting brake ⋅ For the RUN3 signal, output is ON while the inverter running
frequency operation and the start signal is ON.
Reset Time (For the RUN3 signal, output is ON if the starting command is
processing
on even when a fault occurs or the MRS signal is ON.)
ON OFF The output is ON during DC injection brake operation and
RY
OFF during an inverter stop.
RUN ON OFF
(RUN2)
ON OFF
RUN3

Inverter Automatic Restart after

Start Start Start
Status Output Shutoff *2 Instantaneous Power Failure
Signal is Signal is Signal is Under DC
OFF ON ON Injection Coasting

Output (during (during (during Brake Start signal Start signal Start signal Start signal Restarting
Signal stop) stop) running) is ON is OFF is ON is OFF
RY ON ON ON ON OFF ON *1 ON
RY2 OFF OFF OFF OFF OFF OFF OFF
RUN OFF OFF ON OFF OFF OFF ON
RUN2 OFF OFF ON OFF OFF OFF ON
RUN3 OFF ON ON ON ON OFF ON OFF ON
*1 This signal turns OFF during power failure or undervoltage.
*2 Output is shutoff in conditions like a fault and when the MRS signal is ON.

218
 Function assignment of external terminal and control

Under Real sensor less vector control,

vector control
⋅ When the inverter is ready to operate, the output of the
operation ready signal (RY) is ON.
(It is also on during inverter running.)
⋅ When the inverter output frequency rises to or above the Pr.
13 Starting frequency setting, the output of the inverter running
Power
supply ON OFF signal (RUN) is turned ON. During an inverter stop, DC
injection brake operation, start time tuning or pre-excitation,
STF ON OFF the output is off.
RH ON ⋅ For the RUN2 signal, the output is ON while the inverter is
running and the start signal is ON. (For the RUN2 signal, the
ON
MRS output is off when the inverter protective function is activated
and the MRS signal is ON.)
⋅ For the RUN3 signal, the output is ON while the inverter is
Output frequency

running and the start signal is ON.

Pre-excitation ⋅ The RUN2 and RUN3 signals are ON when the start
(0 speed control) command is ON and even during pre-excitation with "0" set in
Pr. 13
speed command. (Note that the RUN2 signal turns OFF
Reset
during pre-excitation by turning the LX signal on.)
Time
processing ⋅ The RY2 signal turns ON at the start of pre-excitation.
ON OFF
The signal is ON while pre-excitation is activated even during
RY an inverter stop. The signal turns OFF while the output is shut
RY2
ON OFF off (MRS signal).
ON OFF
RUN
REMARKS
ON OFF
RUN2 For pre-excitation by pre-excitation signal (LX), the RY2 signal
ON OFF turns ON when 100ms has elapsed after LX signal turn ON.
RUN3
LX ON
100ms
RY2 ON

Inverter DC Automatic Restart after

Status Start Start Start Instantaneous Power Failure
LX Signal Injection Output Shutoff *2
Signal Signal is Signal is Coasting
is ON Brake
is OFF ON *1 ON
(pre- Operation Start Start Start Start
(during (pre- (during Restarting
Output excitation) (pre- signal is signal is signal is signal is
stop) excitation) running)
Signal excitation) ON OFF ON OFF
RY ON ON ON ON ON OFF ON *3 ON
RY2 OFF ON ON ON *4 ON OFF OFF OFF
RUN OFF OFF ON OFF OFF OFF OFF ON
RUN2 OFF ON ON OFF *5 OFF OFF OFF ON
RUN3 OFF ON ON ON ON ON OFF ON OFF ON
4
*1 Pre-excitation is made when the start signal is ON and frequency command is 0Hz.
*2 Output is shutoff in conditions like a fault and when the MRS signal is ON.
*3 This signal turns OFF during power failure or undervoltage.
PARAMETERS

*4 There is a delay of 100ms when the signal is ON.

*5 This signal turns ON during servo ON (LX signal is ON) under position control.

⋅ When using the RY, RY2, RUN, RUN2 and RUN3 signals, assign
Output Pr. 190 to Pr. 196 Setting
functions to Pr. 190 to Pr. 196 (output terminal selection function)
Signal Positive logic Negative logic
referring to the table on the left.
RY 11 111
RY2 33 133
RUN 0 100
RUN2 44 144
RUN3 45 145

REMARKS
⋅ The RUN signal is assigned to the terminal RUN in the initial setting.

219
Function assignment of external terminal and control

(3) Forward rotation and reverse rotation signal (Y30, Y31 signal)
⋅ The status during forward rotation (Y30) and reverse
Pre-excitation
rotation (Y31) are output from the actual motor speed
Forward under vector control.
Actual
motor
rotation
Time
⋅ Y30 and Y31 signals turn OFF during pre-excitation
speed Reverse (zero speed, servo lock) under speed control or torque
rotation
control operation. Note that signals are output
according to the motor rotation during servo lock under
ON position control as same as inverter running.
Y30
⋅ When using the Y30 signal, set "30 (positive logic) or
ON
Y31 130 (negative logic)" to any of Pr. 190 to Pr. 196 (output
terminal function selection) to assign the function to the
output terminal.
⋅ When using the Y31 signal, set "31 (positive logic) or
131 (negative logic)" to any of Pr. 190 to Pr. 196 (output
terminal function selection) to assign the function to the
output terminal.
REMARKS
⋅ This signal is always OFF during V/F control, Advanced magnetic flux vector control or Real sensorless vector control.
⋅ If the motor is made to run by external force, etc. during an inverter stop, Y30 and Y31 remain OFF.
⋅ The FR-A7AP/FR-A7AL (option) is necessary for vector control.

(4) Regenerative mode output signal (Y32 signal)

⋅ While the motor is in regenerative status (motor is in
Driving power regenerative status), the regenerative status
+
output signal (Y32) is turned ON.
If the signal is turned ON once, it will be retained for at
least 100ms.
Time
⋅ It turns OFF while the inverter is stopped and during
Regeneration Less than 100ms pre-excitation.
-
⋅ When using the Y32 signal, set "32 (positive logic) or
Y32 ON OFF ON 132 (negative logic)" to any of Pr. 190 to Pr. 196 (output
terminal function selection) to assign the function to the
Signal is retained for 100ms. output terminal.

REMARKS
⋅ This signal is always OFF during V/F control, Advanced magnetic flux vector control or Real sensorless vector control.
⋅ The FR-A7AP/FR-A7AL (option) is necessary for vector control.

220
 Function assignment of external terminal and control

(5) Fault output signal (ALM, ALM2 signal)

⋅ If the inverter comes to trip, the ALM and ALM2 signals are
Output frequency

Inverter fault occurrence

(trip) output.
⋅ The ALM2 signal remains ON during a reset period after fault
occurrence.
⋅ When using the ALM2 signal, set "94 (positive logic)" or "194
(negative logic)" to any of Pr. 190 to Pr. 196 (output terminal
Time
function selection) to assign the function to the output
ON OFF
ALM terminal.
ALM2 ON OFF ⋅ The ALM signal is assigned to the A1B1C1 contact in the
RES ON OFF initial setting.
Reset processing
(about 1s) REMARKS
Reset ON Refer to page 384 for the inverter fault description.

(6) Input MC shutoff signal (Y91 signal)

⋅ The Y91 signal is output at occurrence of a fault attributable to the failure of the inverter circuit or a fault caused by
a wiring mistake.
⋅ When using the Y91 signal, set "91 (positive logic)" or "191 (negative logic)" to any of Pr. 190 to Pr. 196 (output
terminal function selection) to assign the function to the output terminal.
⋅ The following table indicates the faults that will output the Y91 signal. (Refer to page 384 for the fault description.)
Fault Description
Inrush current limit circuit fault (E.IOH)
CPU fault (E.CPU)
CPU fault (E.5)
CPU fault (E.6)
CPU fault (E.7)
Parameter storage device fault (E.PE)
Parameter storage device fault (E.PE2)
24VDC power output short circuit (E.P24)
Operation panel power supply short circuit, RS-485 terminal
power supply short circuit(E.CTE)
Output side earth(ground) fault overcurrent protection(E.GF)
Output phase loss (E.LF)

♦ Parameters referred to ♦
Pr. 13 Starting frequency Refer to page 157 .
Pr. 76 Fault code output selection Refer to page 252

4
PARAMETERS

221
Function assignment of external terminal and control

4.15.7 Detection of output frequency (SU, FU, FU2 , FU3, FB, FB2, FB3, LS signal,
Pr. 41 to Pr. 43, Pr. 50, Pr. 116, Pr. 865)

The inverter output frequency is detected and output to the output signal.

Parameter Initial Setting

Name Description
Number Value Range
41 Up-to-frequency sensitivity 10% 0 to 100% Set the level where the SU signal turns ON.
42 Output frequency detection 6Hz 0 to 400Hz Set the frequency where the FU (FB) signal turns on.
Set the frequency where the FU (FB) signal turns on
Output frequency detection 0 to 400Hz
43 9999 in reverse rotation.
for reverse rotation
9999 Same as Pr. 42 setting
Second output frequency Set the frequency where the FU2 (FB2) signal turns
50 30Hz 0 to 400Hz
detection on.
Third output frequency Set the frequency where the FU3 (FB3) signal turns
116 60Hz 0 to 400Hz
detection on.
865 Low speed detection 1.5Hz 0 to 400Hz Set the frequency where the LS signal turns ON.

Set frequency Adjustment

(1) Up-to-frequency sensitivity (SU signal, Pr. 41)
Output frequency

range Pr.41
⋅ When the output frequency reaches the set frequency, the up-to-frequency
signal (SU) is output.
⋅ The Pr. 41 value can be adjusted within the range ±1% to ±100% on the
assumption that the set frequency is 100%.
(Hz)

Time ⋅ This parameter can be used to ensure that the set frequency has been
reached to provide the operation start signal etc. for related equipment.
OFF ON OFF
SU

(2) Output frequency detection (FU (FB) signal, FU2 (FB2) signal, FU3 (FB3) signal, Pr. 42, Pr. 43,
Pr. 50, Pr. 116)
⋅ When the output frequency rises to or above the Pr. 42 setting, the output frequency detection signal (FU, FB) is
output.
⋅ This function can be used for electromagnetic brake operation, open signal, etc.
⋅ The FU (FU2, FU3) signal is output when the output frequency (frequency command) reaches the set frequency.
The FB (FB2, FB3) signal is output when the actual rotation detection speed (estimated speed in Real sensorless
vector control, feedback value in vector control) of the motor reaches the set frequency. The FU signal and FB
signal are output simultaneously during V/F control, Advanced magnetic flux vector control and encoder feedback
control.
⋅ Frequency detection that is dedicated to reverse operation can be set by setting detection frequency to Pr. 43. This
function is effective for switching the timing of electromagnetic brake operation between forward rotation (rise) and
reverse rotation (fall) during elevator operation, etc.
⋅ When Pr. 43 ≠ "9999", the Pr. 42 setting applies to forward rotation and the Pr. 43 setting applies to reverse rotation.
⋅ When outputting a frequency detection signal besides the FU signal, set the detection frequency in Pr. 50 or Pr. 116.
The FU2 (FB2) signal (FU3(FB3) signal if Pr. 116 or more) is output when the output frequency reaches or exceeds
the Pr. 50 setting.
⋅ For each signal, assign functions to Pr. 190 to Pr. 196 (output terminal function selection) referring to the table below.

Forward Pr. 190 to Pr. 196

rotation
Parameter Output Setting
Output frequency

Pr.116 Number Signal Positive Negative

Pr.50 logic logic
Pr.42 FU 4 104
42, 43
Pr.43 Time FB 41 141
Pr.50 FU2 5 105
(Hz) 50
Pr.116
FB2 42 142
Output Reverse
FU3 6 106
signal rotation 116
FU/FB OFF ON OFF ON OFF FB3 43 143

FU2/FB2 OFF ON OFF ON OFF

FU3/FB3 OFF ON OFF ON OFF

222
 Function assignment of external terminal and control

(3) Low speed detection (LS signal, Pr. 865)

⋅ The low speed detection signal (LS) is output when the
Output frequency

output frequency drops below the Pr. 865 Low speed

Pr.865 detection setting.
⋅ When speed control is performed by Real sensorless
(Hz)

vector control or vector control, a fault (E.OLT) is

Time
LS ON OFF ON
displayed and the inverter trips if frequency drops to the
Pr. 865 setting by torque limit operation and the output
torque exceeds Pr. 874 OLT level setting and remains for
more than 3s.
⋅ For the LS signal, set "34 (positive logic) or 134 (negative
logic)" in Pr. 190 to Pr. 196 (output terminal function
selection) and assign functions to the output terminal.

REMARKS
⋅ The FU signal is assigned to the terminal FU and the SU signal is assigned to the terminal SU in the initial setting.
⋅ All signals are OFF during DC injection brake, pre-excitation (zero speed control, servo lock), or start time tuning.
⋅ The type of frequency (output as the following signals), which is compared with the set frequency, differs by the control method.

Compared frequency
Control Method
FU, FU2, FU3 FB, FB2, FB3, SU, LS
V/F control Output frequency Output frequency
Advanced magnetic
Output frequency before the slip compensation. Output frequency before the slip compensation.
flux vector control
Real sensorless Frequency command ω * (Refer to page 73) Estimated frequency (estimated from the actual
vector control motor speed)
Encoder feedback
Actual motor speed converted as frequency Actual motor speed converted as frequency
control
Vector control Frequency command ω * (Refer to page 73) Actual motor speed converted as frequency

CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
Pr. 874 OLT level setting Refer to page 83

4
PARAMETERS

223
Function assignment of external terminal and control

4.15.8 Output current detection function

(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167)

The output power during inverter running can be detected and output to the output terminal.

Parameter
Name Initial Value Setting Range Description
Number
Output current detection Set the output current detection level. 100%
150 150% 0 to 220%
level is the rated inverter current.
Set the output current detection period. Set
Output current detection the time from when the output current has
151 0s 0 to 10s
signal delay time risen above the setting until the output current
detection signal (Y12) is output.
Set the zero current detection level. The rated
152 Zero current detection level 5% 0 to 220%
inverter current is assumed to be 100%.
Set this parameter to define the period from
when the output current drops below the Pr.
153 Zero current detection time 0.5s 0 to 1s
152 value until the zero current detection
signal (Y13) is output.
Set the retention time when the Y12 signal is
0 to 10s
Output current detection on.
166 0.1s
signal retention time The Y12 signal on status is retained. The
9999
signal is turned off at the next start.
Operation continues when the Y12 signal is
0
Output current detection on
167 0
operation selection The inverter trips when the Y12 signal is ON.
1
(E.CDO)

(1) Output current detection (Y12 signal, Pr. 150, Pr.

Pr. 166 9999, Pr. 167 = 0 151, Pr. 166, Pr. 167 )
⋅ The output current detection function can be used for excessive
Pr. 150 torque detection, etc.
Output current ⋅ If the output current remains higher than the Pr. 150 setting during
Pr. 151 inverter operation for longer than the time set in Pr. 151, the
Pr. 166
Time output current detection signal (Y12) is output from the inverter's
Minimum 0.1s open collector or relay output terminal.
Output current
(initial value)
⋅ When the Y12 signal turns on, the ON state is held for the time
detection signal OFF ON OFF set in Pr. 166 .
(Y12) ⋅ When Pr. 166 = "9999", the ON state is held until a next start.
⋅ At the Pr. 167 setting of "1", the inverter trips and the output
current detection fault (E.CDO) is displayed when the Y12 signal
turns on. When fault occurs, the Y12 signal is on for the time set
in Pr. 166 at the Pr. 166 setting of other than "9999", and remains
on until a reset is made at the Pr. 166 setting of "9999". E.CDO
does not occur even if "1" is set in Pr. 167 while Y12 is ON. The
Pr. 167 setting is valid after Y12 turns OFF.
⋅ Set "12 (positive logic)" or "112 (negative logic)" to any of Pr. 190
to Pr. 196 (output terminal function selection) to assign the function
of the Y12 signal to the output terminal.

224
 Function assignment of external terminal and control

(2) Zero current detection (Y13 signal, Pr. 152, Pr. 153)
Output
⋅ If the output current remains lower than the Pr. 152 setting
current during inverter operation for longer than the time set in Pr.
Pr.152 153, the zero current detection (Y13) signal is output from
Pr.152
0[A] the inverter's open collector or relay output terminal.
0.1s* Time
⋅ When the inverter's output current falls to "0", torque will not
OFF ON
Start signal be generated. This may cause a drop due to gravity when
the inverter is used in vertical lift application. To prevent this,
Zero current OFF ON OFF ON
detection time the Y13 signal can be output from the inverter to close the
Pr. 153 Pr. 153
(Y13)
Detection time Detection time
mechanical brake when the output current has fallen to
"zero".
* Once turned on, the zero current detection time
signal (Y13) is held on for at least 0.1s. ⋅ Set "13 (positive logic)" or "113 (negative logic)" in any of Pr.
190 to Pr. 196 (output terminal function selection) to assign the
function of the Y13 signal to the output terminal.
CAUTION
⋅ This function is also valid during execution of the online or offline auto tuning.
⋅ The response time of Y12 and Y13 signals is approximately 0.1s. Note that the response time changes according to the load
condition.
When Pr. 152 = "0", detection is disabled.
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.

CAUTION
The zero current detection level setting should not be too low, and the zero current detection time setting not too
long. Otherwise, the detection signal may not be output when torque is not generated at a low output current.
To prevent the machine and equipment from resulting in hazardous conditions by use of the zero current
detection signal, install a safety backup such as an emergency brake.

♦ Parameters referred to ♦
Online auto tuning Refer to page 181
Offline auto tuning Refer to page 171
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215

4.15.9 Detection of output torque (TU signal, Pr. 864) Sensorless Magnetic flux Vector

Output the signal when the motor torque rises above the setting value.
This function can be used for electromagnetic brake operation, open signal, etc.

Parameter
Name Initial Value Setting Range Description
Number
Set the torque value where the TU
864 Torque detection 150% 0 to 400%
signal turns on.
4
⋅ When the output torque reaches or exceeds the detected
torque value set in Pr. 864 under Real sensorless vector
Output torque (%)

control, Advanced magnetic flux vector control or vector

PARAMETERS

control, the torque detection signal (TU) turns on.

Pr.864 It turns off when the torque falls below the detection
torque value.
⋅ For the TU signal, set "35 (positive logic) or 135 (negative
Time logic)" in Pr. 190 to Pr. 196 (output terminal function
TU ON OFF
selection) and assign functions to the output terminal.
CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215

225
Function assignment of external terminal and control

4.15.10 Remote output function (REM signal, Pr. 495 to Pr. 497)

You can utilize the on/off of the inverter's output signals instead of the remote output terminal of the
programmable logic controller.
Parameter Initial Setting
Name Description
Number Value Range
0 Remote output data clear at powering off Remote output data
Remote output data retention even at is cleared during an
1
powering off inverter reset
495 Remote output selection 0
10 Remote output data clear at powering off Remote output data
Remote output data retention even at is retained during an
11
powering off inverter reset
496 * Remote output data 1 0 0 to 4095
Refer to the following diagram.
497 * Remote output data 2 0 0 to 4095
* The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr.
77 Parameter write selection.

<Remote output data> ⋅ The output terminal can be turned on/off depending on
Pr. 496 the Pr. 496 or Pr. 497 setting. The remote output
b11 b0 selection can be controlled on/off by computer link
communication from the PU connector or RS-485 port
ABC2

ABC1

RUN
IPF

SU
FU

OL

or by communication from the communication option.

*1

*1

*1

*1

*1

⋅ Set "96" (positive logic) or "196" (negative logic) to any

Pr. 497 of Pr. 190 to Pr. 196 (output terminal function selection),
b11 b0 and assign the remote output (REM) signal to the
terminal used for remote output,
RA3 *3

RA2 *3

RA1 *3

Y6 *2

Y5 *2

Y4 *2

Y3 *2

Y2 *2

Y1 *2

Y0 *2

⋅ When you refer to the diagram on the left and set 1 to

*1

*1

the terminal bit (terminal where the REM signal has

*1 As desired been assigned) of Pr. 496 or Pr. 497, the output terminal
*2 Y0 to Y6 are available only when the extension output option (FR-A7AY) turns on (off for negative logic). By setting 0, the output
is fitted
*3 RA1 to RA3 are available only when the relay output option (FR-A7AR) is fitted terminal turns off (on for negative logic).
Example)When "96" (positive logic) is set in Pr. 190 RUN terminal function selection and "1" (H01) is set in Pr. 496,
the terminal RUN turns on.
ON/OFF example for positive logic
Pr. 495 = 0, 10 Pr. 495 = 1, 11

Power
supply
OFF Power OFF ⋅ When Pr. 495 = "0 (initial value), 10", performing a power
supply
Inverter supply reset (including a power failure) clears the REM signal
reset time
(about 1s) output. (The ON/OFF status of the terminals are as set in Pr.
REM OFF REM ON 190 to Pr. 196.) The Pr. 496 and Pr. 497 settings are also "0".
When Pr. 495 = "1, 11", the remote output data before power
REM signal clear REM signal held
supply-off is stored into the EEPROM, so the signal output at
REM signal is saved
Signal condition during a reset
power recovery is the same as before power supply-off.
However, it is not stored when the inverter is reset (terminal
Pr. 495 = 0, 1 Pr. 495 = 10, 11
reset, reset request through communication).
Reset ON Reset ON (See the chart on the left)
⋅ When Pr. 495 = "10 or 11," the signal before the reset is held
REM ON OFF REM ON even during an inverter reset.
*
* When Pr. 495 = "1," the signal condition saved in EEPROM
(condition of the last power OFF) is applied.
REMARKS
⋅ The output terminal where the REM signal is not assigned using any of Pr. 190 to Pr. 196 does not turn on/off if 0/1 is set to the
terminal bit of Pr. 496 or Pr. 497 . (It turns on/off with the assigned function.)
⋅ When the inverter is reset (terminal reset, reset request through communication), Pr. 496 and Pr. 497 values turn to "0". When Pr.
495 = "1, 11", however, they are the settings at power supply-off. (The settings are stored at power supply-off.) When Pr. 495 =
"10, 11", they are the same as before an inverter reset is made.

CAUTION
⋅ When Pr. 495 = "1, 11"(remote output data retention at power OFF), connect R1/11 with P/+, and S1/L21 with N/- so that the
control power is retained. If you do not take such a step, the output signals provided after power-on are not guaranteed.

♦ Parameters referred to ♦
⋅ Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215

226
 Monitor display and monitor output signal

4.16 Monitor display and monitor output signal

Purpose Parameter that must be Set Refer to Page
Display motor speed Speed display and speed
Pr. 37, Pr. 144, Pr. 505, Pr. 811 227
Set speed setting
DU/PU main display data
selection
Change PU monitor display data Cumulative power monitor Pr. 52, Pr. 170, Pr. 171, Pr. 268, Pr. 891 229
(cumulative regenerative
power monitor) clear
Change of the monitor output Terminal FM, AM function
Pr. 54, Pr. 158, Pr. 291, Pr. 866, Pr. 867 229
from terminal FM and AM selection
Set the reference of the monitor Setting of reference of
Pr. 55, Pr. 56, Pr. 291, Pr. 866, Pr. 867 236
output from terminal FM and AM terminal FM and AM
Terminal FM, AM
Adjust terminal FM, AM outputs Pr. 900, Pr. 901 240
calibration

4.16.1 Speed display and speed setting (Pr. 37, Pr. 144, Pr. 505, Pr. 811)
You can change the PU (FR-DU07/FR-PU04/FR-PU07) monitor display or frequency setting to motor speed or
machine speed.

Parameter Initial Setting

Name Description
Number Value Range
0 Frequency display, setting
37 Speed display 0
1 to 9998* Set the machine speed at Pr. 505.
0, 2, 4, 6, 8,
144 Speed setting switchover 4 10, 102, 104, Set the number of motor poles when displaying the motor speed.
106, 108, 110
505 Speed setting reference 60Hz 1 to 120Hz Set the reference speed for Pr. 37.
Speed setting and running
speed monitor increments from Torque limit setting increments
the PU, RS-485 communication Pr. 22, Pr. 812 to Pr. 817
or communication option.
811 Set resolution switchover 0 0 1r/min
0.1%
1 0.1r/min
10 1r/min
0.01%
11 0.1r/min
* The maximum value of the setting range differs according to the Pr. 1 Maximum frequency and Pr. 505 Speed setting reference settings
and it can be calculated from the following formula.

65535 × Pr. 505

Maximum setting value of Pr. 37 <
Setting value of Pr. 1 (Hz)

Note that the maximum setting value of Pr. 37 is 9998 if the result of the above formula exceeds 9998.

4
PARAMETERS

227
Monitor display and monitor output signal

⋅ To display the machine speed, set in Pr. 37 the machine speed for operation with frequency set in Pr. 505.
For example, when Pr. 505 = "60Hz" and Pr. 37 = "1000", "1000" is displayed on the running speed monitor when the
running frequency is 60Hz. When running frequency is 30Hz, "500" is displayed.
⋅ When displaying the motor speed, set the number of motor poles (2, 4, 6, 8, 10) or number of motor poles + 100
(102, 104, 106, 108, 110) in Pr. 144.
⋅ The Pr. 144 setting is automatically changed if the number of motor poles is set in Pr. 81 Number of motor poles. The Pr.
81 setting is not automatically changed even if the setting of Pr. 144 is changed.
Example 1) When the initial setting of Pr. 81 is changed to "2" or "12", the Pr. 144 setting changes from "4" to "2".
Example 2) When Pr. 144 = "104", setting "2" in Pr. 81 changes the Pr. 144 setting from "104" to "102".
⋅ When "1, or 11" is set in Pr. 811, the setting increments of speed setting from the PU, speed setting from RS-485
communication or communication options (other than FR-A7ND, FR-A7NL) and running speed monitor is 0.1r/min.
⋅ When both Pr. 37 and Pr. 144 have been set, their priorities are as given below.
Pr. 144, 102 to 110 > Pr. 37, 1 to 9998 > Pr. 144, 2 to 10
⋅ When the running speed monitor is selected, each monitor and setting are determined by the combination of Pr. 37
and Pr. 144 as listed below. (The units within the thick frame are the initial values.)

Pr. 37 Pr. 144 Output Frequency Set Frequency Running Speed Frequency Setting
Setting Setting Monitor Monitor Monitor Parameter Setting
0 0 Hz Hz r/min *1 Hz
(initial 2 to 10 Hz Hz r/min *1 Hz
value) 102 to 110 r/min *1 r/min *1 r/min *1 r/min *1
0 Hz Hz Machine speed *1 Hz
1 to 9998 2 to 10 Machine speed *1 Machine speed *1 Machine speed *1 Machine speed *1
102 to 110 Hz Hz r/min *1 Hz
*1 Motor speed r/min conversion formula............ frequency × 120/number of motor poles (Pr. 144)
Machine speed conversion formula ...................Pr. 37 × frequency/Pr. 505
For Pr. 144 in the above formula, the value is "Pr. 144 - 100" when "102 to 110" is set in Pr. 144 and the value is "4" when Pr. 37 = 0 and Pr. 144 = 0.
*2 Hz is in 0.01Hz increments, machine speed is in 1 increments, and r/min is in 1r/min increments (depending on Pr. 811 ).
*3 Pr. 505 is always set as frequency (Hz).

CAUTION
⋅ Under V/F control, the output frequency of the inverter is displayed in terms of synchronous speed, and therefore, displayed
value = actual speed + motor slip. This display changes to the actual speed (estimated value calculated based on the motor
slip) when the Advanced magnetic flux vector control or Real sensorless vector control is selected, and actual speed from the
encoder is displayed when encoder feed back control or vector control is performed.
⋅ When the running speed display is selected at the setting of Pr. 37 = "0" and Pr. 144 = "0", the monitor display is provided on the
assumption that the number of motor poles is 4. (1800r/min is displayed at 60Hz)
⋅ Refer to Pr. 52 when you want to change the PU main monitor (PU main display).
⋅ Since the panel display of the operation panel (FR-DU07) is 4 digits in length, the monitor value of more than "9999" is
displayed "----".
⋅ After setting the running speed in 0.1r/min increments (Pr. 811 = "1, 11"), changing the setting increments to 1r/min increments
(Pr. 811 = "0, 10") changes the speed resolution from 0.1r/min to 0.3r/min (four poles), which may round down 0.1r/min
increments.
⋅ When the machine speed is displayed on the FR-PU04/FR-PU07, do not change the speed by using an up/down key in the
state where the set speed exceeding 65535 is displayed. The set speed may become arbitrary value.
⋅ When an optional FR-A7ND or FR-A7NL card is mounted, frequency is displayed regardless of Pr. 37 and Pr. 144 setting.

CAUTION
Make sure that the settings of the running speed and number of motor poles are correct. Otherwise, the motor
might run at extremely high speed, damaging the machine.

♦ Parameters referred to ♦
Pr. 1 Maximum frequency Refer to page 140
Pr. 52 DU/PU main display data selection Refer to page 229
Pr. 80 Motor capacity, Pr. 81 Number of motor poles Refer to page 131
Pr. 800 Control method selection Refer to page 75
Pr. 811 Set resolution switchover Refer to page 83

228
 Monitor display and monitor output signal

4.16.2 DU/PU, FM, AM terminal monitor display selection (Pr. 52, Pr. 54, Pr. 158, Pr. 170,
Pr. 171, Pr. 268, Pr. 563, Pr. 564, Pr. 891)
The monitor to be displayed on the main screen of the operation panel (FR-DU07)/parameter unit (FR-PU04/FR-
PU07) can be selected.
In addition, signals to be output from the terminal FM (pulse train output) and AM (analog voltage output) can be
selected.

Parameter
Name Initial Value Setting Range Description
Number
0, 5 to 8, 10 to
0 14, 17 to 20, 22 Select the monitor to be displayed on the
DU/PU main display data to 25,
52* (output operation panel and parameter unit.
selection 32 to 35, 50 to
frequency) Refer to the following table for monitor description.
57, 65, 66, 100

FM terminal function 1 to 3, 5 to 8, 10
54* 1 Select the monitor output to terminal FM.
selection to 14, 17, 18, 21,
(output
AM terminal function 24, 32 to 34, 50,
158* frequency) Select the monitor output to terminal AM.
selection 52, 53
0 Set "0" to clear the watt-hour meter monitor.
2 Set "2" to clear the cumulative regenerative
power monitor.
170 Watt-hour meter clear 9999 Sets the maximum value for the monitoring from
10
communication to 9999kWh.
Sets the maximum value for the monitoring from
9999
communication to 65535kWh.
Set "0" to clear the operation time monitor.
171 Operation hour meter clear 9999 0, 9999
Setting "9999" has no effect.
0 Displayed as integral value
Monitor decimal digits
268* 9999 1 Displayed in 0.1 increments
selection
9999 No function
Energization time 0 to 65535 Displays the numbers of cumulative energization
563 0
carrying-over times (reading only) time monitor exceeded 65535h. Reading only
Operating time carrying- 0 to 65535 Displays the numbers of operation time monitor
564 0
over times (reading only) exceeded 65535h. Reading only
Set the number of times to shift the cumulative
0 to 4 power monitor digit.
Cumulative power monitor Clamps the monitor value at maximum.
891 9999
digit shifted times No shift
9999 Clears the monitor value when it exceeds the
maximum value.
* The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in
Pr. 77 Parameter write selection.
...... Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

(1) Monitor description list (Pr. 52)

⋅ Set the monitor to be displayed on the operation panel (FR-DU07) and parameter unit (FR-PU04/FR-PU07) in Pr. 4
52 DU/PU main display data selection.
⋅ Set the monitor to be output to the terminal FM (pulse train output) in Pr. 54 FM terminal function selection.
PARAMETERS

⋅ Set the monitor to be output to the terminal AM (analog voltage output (0 to 10VDC voltage output)) in Pr. 158 AM
terminal function selection.
⋅ Refer to the following table and set the monitor to be displayed. (The signals marked × cannot be selected for
monitoring)
Pr. 52 Setting Full-scale
Pr. 54 (FM)
Value of the
Types of Monitor Increments PU main Pr. 158 (AM) Description
DU LED Terminal FM
monitor Setting
and AM
Output frequency 0.01Hz 0/100 1 Pr. 55 Displays the inverter output frequency.
Displays the inverter output current effective
Output current 0.01A 0/100 2 Pr. 56 value.
200V class:
400V
Output voltage 0.1V 0/100 3 Displays the inverter output voltage.
400V class:
800V

229
Monitor display and monitor output signal

Pr. 52 Setting Full-scale

Pr. 54 (FM)
Value of the
Types of Monitor Increments PU main Pr. 158 (AM) Description
DU LED Terminal FM
monitor Setting
and AM
Fault display ⎯ 0/100 × ⎯ Displays 8 past alarms individually.
Frequency setting
0.01Hz 5 *1 5 Pr. 55 Displays the set frequency.
value
Displays the motor speed
The value (The display differs depending on the Pr. 37
converted and Pr. 144 settings. The running speed is
Running speed 1(r/min) 6 *1 6 with the Pr. the actual speed by the encoder signal
37 value
during encoder feedback control and vector
from Pr. 55
control. For details, refer to page 227.)
Displays the motor torque in percentage on the
Motor torque 0.1% 7 *1 7 Pr. 866 assumption that the rated motor torque is 100%
(0% is displayed during V/F control)
200V class:
Converter output 400V
0.1V 8 *1 8 Displays the DC bus voltage value.
voltage 400V class:
800V
Electronic thermal Displays the motor thermal cumulative value
relay function 0.1% 10 *1 10 100% on the assumption that the thermal operation
load factor level is 100%.
Output current Retains the peak value of the output current
0.01A 11 *1 11 Pr. 56
peak value monitor and displays (clears at every start)
200V class:
400V Retains the peak value of the DC bus
Converter output
0.1V 12 *1 12 voltage value and displays (clears at every
voltage peak value 400V class: start)
800V
Rated
Input power 0.01kW 13 *1 13 inverter Displays power on the inverter input side
power × 2
Rated
Output power 0.01kW 14 *1 14 inverter Displays power on the inverter output side
power × 2
Displays the torque current in % on the
assumption that the Pr. 56 setting is 100%
Load meter 0.1% 17 17 Pr. 866 (displayed on the assumption that rated
motor torque is 100% during sensorless
vector and vector control)
Motor excitation
0.01A 18 18 Pr. 56 Displays the excitation current of the motor
current
Displays the number of pulses per rotation of
Position pulse *2 ⎯ 19 × ⎯
the motor when orientation control is valid
Displays the cumulative energization time
Cumulative since the inverter shipment.
energization time *4
1h 20 × ⎯ You can check the numbers of the monitor
value exceeded 65535h with Pr. 563.
Terminal FM:
Reference 1440 pulse/s is output when Pr. 291 = 0, 1.
voltage output ⎯ ⎯ 21 ⎯ 50k pulse/s is output when Pr. 291 ≠ 0, 1.
Terminal AM: 10V is output
Displays only when orientation control is
Orientation status *2 1 22 × ⎯ valid
(Refer to page 196)
Displays the cumulative inverter running
time.
Actual operation You can check the numbers of the monitor
time *4, *5
1h 23 × ⎯ value exceeded 65535h with Pr. 564.
Use Pr. 171 to clear the value. (Refer to page
235)
Displays the output current value in % on the
assumption that the rated inverter current
Motor load factor 0.1% 24 24 200% value is 100%.
Monitor value = output current monitor value/
rated inverter current × 100 [%]
Displays the cumulative power amount
according to the output power monitor.
Cumulative power *7 0.01kWh *6 25 × ⎯ Use Pr. 170 to clear the value. (Refer to page
234)
Torque command 0.1% 32 32 Pr. 866 Displays torque command value obtained
from vector control
Torque current
0.1% 33 33 Pr. 866 Displays torque current command value
command

230
 Monitor display and monitor output signal

Pr. 52 Setting Full-scale

Pr. 54 (FM)
Value of the
Types of Monitor Increments PU main Pr. 158 (AM) Description
DU LED Terminal FM
monitor Setting
and AM
Rated motor Multiplies the motor speed by the then output
Motor output 0.01kW 34 34 torque and displays the machine output of
capacity
the motor shaft end
Displays the number of pulses fed back from
the encoder during one sampling (displays
during a stop).
Feedback pulse The sampling time varies with the Pr. 369
⎯ 35 × ⎯
*3, *7 Number of encoder pulses setting.
1050 or less: 1s
1051 to 2100: 0.5s
2101 to 4096: 0.25s
Power saving Inverter Displays energy saving effect monitor
50 50
effect Variable capacity You can change the monitor to power saving,
according to power saving average value, charge display
Cumulative
saving power *7
parameters 51 × ⎯ and % display using parameters.
(For details, refer to page 257)
PID set point 0.1% 52 52 100%
PID measured Displays the set point, measured value and
value 0.1% 53 53 100% deviation during PID control (For details,
refer to page 343)
PID deviation 0.1% 54 × ⎯
Input terminal Displays the input terminal ON/OFF status
status ⎯ *1 × ⎯ on the PU (refer to page 233 for DU display)
55
Output terminal Displays the output terminal ON/OFF status
status ⎯ *1 × ⎯ on the PU (refer to page 233 for DU display)
Option input Displays the input terminal ON/OFF status of
terminal status ⎯ 56 × × ⎯ the digital input option (FR-A7AX) on the DU
(refer to page 233 for details)
Displays the output terminal ON/OFF states
Option output of the digital output option (FR-A7AY) or
terminal status ⎯ 57 × × ⎯ relay output option (FR-A7AR) on the DU
(refer to page 233 for details)
Output power Inverter
Displays the regenerative power at the
(with regenerative 0.1kW 65 × rated power
inverter output side.
display) ×2
Accumulated regenerative power is
Cumulative 0.01kWh displayed based on the output power (with
regenerative (1kWh for 66 × —
regenerative display).
power *7 communication)
The value can be cleared by Pr.170.
*1 Frequency setting to output terminal status on the PU main monitor are selected by "other monitor selection" of the parameter unit (FR-PU04/FR-PU07).
*2 Position pulse and orientation status function when used with an FR-A7AP/FR-A7AL (option). When orientation control is invalid, "0" remains displayed and
these functions are invalid.
*3 Feedback pulse functions when the FR-A7AP/FR-A7AL (option) is used and vector control is performed.
*4 The cumulative energization time and actual operation time are accumulated from 0 to 65535 hours, then cleared, and accumulated again from 0.
When the operation panel (FR-DU07) is used, the time is displayed up to 65.53 (65530h) in the indication of 1h = 0.001, and thereafter, it is added
up from 0.
*5 The actual operation time is not added up if the cumulative operation time before power supply-off is less than 1h.
*6 When using the parameter unit (FR-PU04/FR-PU07), "kW" is displayed.
*7 Since the panel display of the operation panel (FR-DU07) is 4 digits in length, the monitor value of more than "9999" is displayed as "----".

4
PARAMETERS

231
Monitor display and monitor output signal

REMARKS

⋅ By setting "0" in Pr. 52, the monitoring of output frequency to fault display can be selected in sequence by .
⋅ When the operation panel (FR-DU07) is used, the displayed units are Hz, V and A only and the others are not displayed.
⋅ The monitor set in Pr. 52 is displayed in the third monitor position (The output voltage monitor is changed).
Note that load meter, motor excitation current, and motor load factor are displayed in the second monitor (output current).
Initial value
* The monitor displayed at powering on is the first monitor. Display the monitor you want to display on the first monitor and hold down

for 1s. (To return to the output frequency monitor, hold down for 1s after displaying the output frequency monitor.)

• Power-on monitor (first monitor) • Second monitor • Third monitor • Fault monitor
With fault

Output frequency monitor Output current monitor Output voltage monitor

Example)When Pr. 52 is set to "20" (cumulative energization time), the monitor is displayed on the operation panel as described
below.

• Power-on monitor (first monitor) • Second monitor • Third monitor • Fault monitor
With fault

Output frequency monitor Output current monitor Cumulative energization time monitor

(2) Display set frequency during stop (Pr. 52) Pr. 52

⋅ When Pr. 52 is set to "100", the set frequency monitor Type of Monitor 0 100
is displayed during a stop and the output frequency During During During
monitor is displayed during operation. (LED of Hz running/stop stop running
flickers during stop and is lit during running.) Output Output Set Output
⋅ When Pr. 52 = "100", the set frequency displayed at a frequency frequency frequency frequency
stop indicates frequency to be output when the start Output current Output current
command is ON.
Different from the frequency setting displayed when Output voltage Output voltage
Pr. 52 = "5", the value based on maximum/minimum Fault display Fault display
frequency and frequency jump is displayed.

REMARKS
⋅ During an error, the output frequency at error occurrence appears.
⋅ During MRS, the values displayed are the same as during a stop.
⋅ During offline auto tuning, the tuning status monitor has priority.

232
 Monitor display and monitor output signal

(3) Operation panel (FR-DU07) I/O terminal monitor (Pr. 52)

⋅ When Pr. 52 is set to any of "55 to 57", the I/O terminal states can be monitored on the operation panel (FR-DU07).
⋅ The I/O terminal monitor is displayed on the third monitor.
⋅ The LED is ON when the terminal is ON, and the LED is OFF when the terminal is OFF. The center line of LED is always
ON.
Pr. 52 Setting Monitor Description
55 Displays the I/O and output terminal ON/OFF status of the inverter unit.
56 * Displays the input terminal ON/OFF status of the digital input option (FR-A7AX).
57 * Displays the output terminal ON/OFF status of the digital output option (FR-A7AY) or relay output option (FR-A7AR).
* You can set "56" or "57" even if the option is not fitted. When the option is not fitted, the monitor displays are all OFF.

⋅ On the unit I/O terminal monitor (Pr. 52 = "55"), the upper LEDs denote the input terminal status and the lower the
output terminal status.

RM AU STOP RES STF JOG CS - Display example -

RH
Input terminal When signals STF,
RL RT MRS STR RH and RUN are ON
Hz MON P.RUN
A
PU EXT NET
V
REV FWD
Center line is always ON

RUN OL
ABC1 SU FU Output terminal
ABC2 IPF

⋅ On the input option terminal monitor (Pr. 52 = "56"), the decimal point LED of the first digit LED is on.

X1 X2 X4 X5 X7 X8
X0 X3 X6 X9

Center line is always ON

X12 X15
X10 X13 DY
X11 X14

Decimal point LED of first digit LED is always ON

⋅ On the input option terminal monitor (Pr. 52 = "57"), the decimal point LED of the second digit LED is ON.

Y1 Y2 Y4 Y5
FR-A7AY
Y0 Y3 Y6

Center line is always ON

RA3
RA1
RA2 FR-A7AR
4
Decimal point LED of second digit LED is always ON
PARAMETERS

233
Monitor display and monitor output signal

(4) Cumulative regenerative power monitor, cumulative regenerative power monitor and clear
(Pr. 170, Pr. 891)
⋅ On the cumulative power monitor (Pr. 52 = "25"), the output power monitor value is added up and is updated in 1h
increments.
⋅ On the cumulative regenerative power monitor (Pr. 52 = "66"), the output power (with regenerative display) is added
up and updated in 1h increments.
⋅ The operation panel (FR-DU07), parameter unit (FR-PU04, FR-PU07) and communication (RS-485 communication,
communication option) display increments and display ranges are as indicated below.
Operation Panel *1 Parameter Unit *2 Communication
Range
Range Increments Range Increments Increments
Pr. 170 = 10 Pr. 170 = 9999
0 to 99.99kWh 0.01kWh 0 to 999.99kWh 0.01kWh
0 to 65535kWh
100.0 to 999.9kWh 0.1kWh 1000.0 to 9999.9kWh 0.1kWh 0 to 9999kWh 1kWh
(initial value)
1000 to 9999kWh 1kWh 10000 to 99999kWh 1kWh
*1 Power is measured in the range 0 to 9999.99kWh, and displayed in 4 digits.
When the monitor value exceeds "99.99", a carry occurs, e.g. "100.0", so the value is displayed in 0.1kWh increments.
*2 Power is measured in the range 0 to 99999.99.99kWh, and displayed in 5 digits.
When the monitor value exceeds "999.99", a carry occurs, e.g. "1000.0", so the value is displayed in 0.1kWh increments.
⋅ The monitor data digit can be shifted to the right by the number of Pr. 891 settings.
For example, if the cumulative power value is 1278.56kWh when Pr. 891 = "2", the PU/DU display is 12.78 (display
in 100kWh increments) and the communication data is 12.
⋅ If the maximum value is exceeded at Pr. 891 = "0 to 4", the monitor value is clamped at the maximum value,
indicating that a digit shift is necessary. If the maximum value is exceeded at Pr. 891 = "9999", the monitor value
returns to 0 and is recounted.
⋅ Writing "0" in Pr. 170 clears the cumulative power monitor.
⋅ Writing "2" to Pr.170 clears the cumulative regenerative driving power amount.
REMARKS
⋅ If "0, 2" is written in Pr. 170 and Pr. 170 is read again, "9999" or "10" is displayed.
⋅ Cumulative regenerative driving power (Pr. 52 = "66") cannot be assigned to the terminal FM/AM or the analog output terminal
of FR-A7AY, or neither to Pr. 838 DA1 terminal function selection.

(5) Output power (with regenerative display) (Pr. 52 = "65")

⋅ Regenerative driving power at the inverter output side is displayed in the output power monitor (with regenerative
display) (Pr. 52 = "65").
⋅ Positive value (no sign) is displayed in the output power display on the operation panel during power driving, and
negative value is displayed during regenerative driving.

<DU07 display in regenerative driving> <DU07 display in power driving>

Only signs are displayed in the leftmost 7-segment LED

⋅ When the monitored value is 100kW or more, the displayed unit is 1kW. When the power value is 1000kW or more,
it is limited at 999kW. When the power value is -1000kW or less, it is limited at -999kW.
⋅ Positive value (no sign) is displayed in the output power display on the communication option and FR-PU07 during
power driving and regenerative driving.
REMARKS
⋅ Output power (with regenerative display) (Pr. 52 = "65") cannot be assigned to the terminal FM/AM or to the analog
output terminal of FR-A7AY.
⋅ Analog output pattern when Pr. 838 DA1 terminal function selection = "65" is shown below. (Pr. 838 DA1 terminal function
selection is a parameter dedicated to FR-A7AZ. Read and write to this parameter is available only when the option is
installed.)
⋅ During power driving: positive value is output
⋅ During regenerative driving: negative value is output

234
 Monitor display and monitor output signal

(6) Cumulative energization time and actual operation time monitor (Pr. 171, Pr. 563, Pr. 564)
⋅ On the cumulative energization time monitor (Pr. 52 = "20"), the inverter running time is added up every hour.
⋅ On the actual operation time monitor (Pr. 52 = "23"), the inverter running time is added up every hour. (Time is not
added up during a stop.)
⋅ If the numbers of monitor value exceeds 65535, it is added up from 0. You can check the numbers of cumulative
energization time monitor exceeded 65535h with Pr. 563 and the numbers of actual operation time monitor
exceeded 65535h with Pr. 564.
⋅ Writing "0" in Pr. 171 clears the actual operation time monitor. (Energization time monitor can not be cleared.)
REMARKS
⋅ The cumulative energization time does not increase if the power is ON for less than an hour.
⋅ The actual operation time does not increase if the cumulative running time during power-ON status is less than an hour.
⋅ If "0" is written in Pr. 171 and Pr. 171 is read again, "9999" is always displayed. Setting "9999" does not clear the actual operation
time meter.

(7) You can select the decimal digits of the monitor (Pr. 268)
⋅ As the operation panel (FR-DU07) display is 4 digits long, the decimal places may vary at analog input, etc. The
decimal places can be hidden by selecting the decimal digits.
In such a case, the decimal digits can be selected by Pr. 268.
Pr. 268 Setting Description
9999 (initial value) No function
When 1 or 2 decimal places (0.1 increments or 0.01 increments) are monitored, the decimal places are
0 dropped and the monitor displays an integer value (1 increments).
The monitor value of 0.99 or less is displayed as 0.
When 2 decimal places (0.01 increments) are monitored, the 0.01 decimal place is dropped and the
1 monitor displays the first decimal place (0.1 increments).
When the monitor display digit is originally in 1 increments, it is displayed unchanged in 1 increments.

REMARKS
⋅ The number of display digits on the cumulative energization time (Pr. 52 = "20"), actual operation time (Pr. 52 = "23"), cumulative
power (Pr. 52 = "25") or cumulative saving power monitor (Pr. 52 = "51") does not change.

♦ Parameters referred to ♦
Pr. 37 Speed display, Pr. 144 Speed setting switchover Refer to page 227
Pr. 55 Frequency monitoring reference, Pr. 56 Current monitoring reference, Pr. 866 Torque monitoring reference Refer to page 236
Pr. 291 Pulse train I/O selection Refer to page 236

4
PARAMETERS

235
Monitor display and monitor output signal

4.16.3 Reference of the terminal FM (pulse train output) and AM (analog voltage
output) (Pr. 55, Pr. 56, Pr. 291, Pr. 866, Pr. 867)
Two types of monitor output, pulse train output from the terminal FM and analog voltage output from the terminal
AM, are available. In addition, pulse train output by voltage output and by open collector output can be selected
for terminal FM.
Set the reference of the signal output from terminal FM and AM.

Parameter Initial Setting

Name Description
Number Value Range
Frequency monitoring Full-scale value when frequency monitor value is output to
55 * 60Hz 0 to 400Hz
reference terminal FM and AM.
Rated
Current monitoring Full-scale value when current monitor value is output to
56 * inverter 0 to 500A
reference terminal FM and AM.
current
Pulse train input
Pulse train output
0 Terminal JOGFM output
1 Pulse train input
FM output
10 Terminal JOGHigh speed pulse train output (50%Duty)
11 Pulse train input
High speed pulse train output (50%Duty)
Pulse train I/O High speed pulse train output (ON width
291 0 20 Terminal JOG
selection is always same)
High speed pulse train output (ON width
21 Pulse train input
is always same)
High speed pulse train output (ON width
is always same)
100 Pulse train input
The inverter outputs the signal input as
pulse train as is
Torque monitoring Set the full-scale value to output the torque monitor value to
866 * 150% 0 to 400%
reference terminal FM and AM.
867 AM output filter 0.01s 0 to 5s Set the output filter of terminal AM.
* The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr.
77 Parameter write selection.

(1) Pulse train output of the terminal FM (Pr. 291)

• Two types of pulse train can be output to the terminal FM.
FM output circuit • When Pr. 291 Pulse train I/O selection = "0 (initial value) or 1",
Inverter FM output is selected and pulse train with maximum of
8VDC 2400pulses/s is output.
24V
The pulse width can be adjusted by calibration parameter C0
(Pr. 900) FM terminal calibration using the operation panel
2.2K 3.3K FM and parameter unit.
• Output frequency, etc. of the inverter can be indicated by
20K SD connecting a DC ammeter of full-scale 1mA, digital indicator,
etc.

Indicator
1mA full-scale (Digital indicator)
analog meter
1mA 1440 pulses/s(+) (-)
FM FM
(+) (-) T1
Calibration
resistor*1 8VDC
SD SD
T2
Pulse width T1: Adjust using calibration parameter C0
Pulse cycle T2: Set with Pr. 55 (frequency monitor)
Set with Pr.56 (current monitor)
*1 Not needed when the operation panel (FR-DU07) or parameter unit (FR-PU04/FR-PU07) is used for calibration.
This resistor is used when calibration must be made near the frequency meter for such a reason as a remote frequency meter.
Note that the needle of the frequency meter may not deflect to full-scale when the calibration resistor is connected. In this case, use this
resistor and operation panel or parameter unit together.
*2 The initial setting is 1mA full-scale and 1440 pulse/s terminal FM frequency at 60Hz.

236
 Monitor display and monitor output signal

High speed pulse train output circuit • When Pr. 291 Pulse train I/O selection = "10, 11, 20, 21, 100",
(connection example with a pulse counter) high speed pulse train is output by open collector output.
Pulse counter Pulse train of maximum of 55k pulses/s is output.
Pull up resistance * Two types of pulse width, 50% Duty and fixed ON width, are
available. Adjustment by calibration parameter C0 (Pr. 900)
Inverter
FM terminal calibration can not be performed.
FM
* When the output wiring length is long, a pulse shape is deformed due to the stray
capacitances of the wiring and output pulse can not be recognized. If the wiring
length is long, connect the open collector output signal and the power supply using
an external pull up resistance.
SD Check specifications of a pulse counter for a resistance value to pull up. Select an
appropriate resistance value so that the load current is 80mA or less.
Pulse when Pr. 291 = "10, 11" • When Pr. 291 = "10, 11", the pulse cycle is 50% Duty (ON
50%duty 50%duty width and OFF width are the same).
• When Pr. 291 = "20, 21, 100", fixed ON width of pulse is out-
put (approx. 10µs).
Hi * Low
• When the setting value is "100", the pulse train from the
Pulse when Pr. 291 = "20, 21, 100" pulse train input (terminal JOG) is output as is. Use this
Approx. 10μs Approx. 10μs value for synchronous speed operation of multiple inverters.
(Refer to page 356)

Hi * Low * Hi indicates that the open collector output transistor is on.

High speed pulse train output specifications

Item Specifications
Output method NPN open collector output
Voltage between a collector and emitter 30V (max)
Maximum permissible load current 80mA
Output pulse rate 0 to 55kpps *
Output resolution 3pps (excluding a jitter)
* The output pulse rate is 50kpps when a monitor output value is 100%.
CAUTION
⋅ Input specifications of terminal JOG (pulse train input or contact input) can be selected with Pr. 291.
Change the setting value using care not to change input specifications of terminal JOG. (Refer to page 356 for pulse train input.)
⋅ After changing a setting value of Pr. 291, connect a meter between terminal FM and SD. Take care that a voltage should not be
applied to terminal FM when FM output (voltage output) pulse train is selected.
⋅ The FM output of the inverter can not be connected to devices which have source logic type pulse input.
⋅ When high speed pulse train output (Pr. 291 = "10, 11, 20, 21, 100") is
FM output circuit
selected, performing parameter all clear returns the Pr. 291 setting to the
initial value of "0", changing the terminal FM output from high speed pulse 3.3kΩ Pr.291
train output to FM output (voltage output). 0, 1
Terminal FM
8.2V

10, 11,
20, 21, 100

Open collector output circuit 4

PARAMETERS

237
Monitor display and monitor output signal

(2) Frequency monitoring reference (Pr. 55)

• Set the full scale value when outputting the frequency monitor from terminal FM or AM.
• For the calibration of terminal FM, set the full-scale value of the connected meter when the pulse speed of terminal
FM is 1440 pulse/s (50k pulse/s).
Set the frequency to be indicated as the full scale value on the frequency meter (1mA analog meter) connected
between terminal FM and SD. (For example, 60Hz or 120Hz.)
Pulse speed is proportional to the output frequency of the inverter. (Maximum pulse train output is 2400 pulse/s
(55k pulse/s)).
• For the calibration of terminal AM, set the full-scale value of the connected meter when output voltage of terminal
AM is 10VDC.
Set the frequency to be indicated as the full scale value on the meter (10VDC voltmeter) connected between
terminal AM and 5. (For example, 60Hz or 120Hz)
Output voltage is proportional to the frequency. (Maximum output voltage is 10VDC.)

Output voltage
Pulse speed (pulses/s)

2400
(55K) 10VDC
1440
(50K)

1Hz 60Hz Output frequency 400Hz 1Hz 60Hz 400Hz

(initial value) (initial value)

Setting range of Pr. 55 Setting range of Pr. 55

(3) Current monitoring reference (Pr. 56)
• Set the full scale value when outputting the current monitor from terminal FM or AM.
• For calibration of terminal FM, set the full-scale value of the connected current meter when the pulse speed of
terminal FM is 1440 pulse/s (50k pulse/s).
Set the current to be indicated as the full scale value on the meter (1mA analog meter) connected between terminal
FM and SD.
Pulse speed is proportional to the monitored value of output current. (Maximum pulse train output is 2400 pulse/s
(55k pulse/s).)
• For the calibration of terminal AM, set the full-scale value of the connected current meter when the output voltage
of terminal AM is 10VDC.
Set the current to be indicated as the full scale value on the meter (10VDC voltmeter) connected between terminal
AM and 5.
Output voltage is proportional to the monitored value of output current. (Maximum output voltage is 10VDC.)
Output voltage
Pulse speed (pulses/s)

2400
(55K)
10VDC
1440
(50K)

Rated current 500A Rated current 500A

(initial value) (initial value)

Setting range of Pr. 56 Setting range of Pr. 56

238
 Monitor display and monitor output signal

(4) Reference of torque monitor (Pr. 866)

• Set the full scale value when outputting the torque monitor from terminal FM or AM.
• For calibration of terminal FM, set the full-scale value of the connected torque meter when the pulse speed of
terminal FM is 1440 pulse/s (50k pulse/s).
Set the torque to be indicated as the full scale value on the meter (1mA analog meter) connected between terminal
FM and SD.
Pulse speed is proportional to the monitored value of torque. (Maximum pulse train output is 2400 pulse/s (55k
pulse/s).)
• For the calibration of terminal AM, set the full-scale value of the connected current meter when the output voltage
of terminal AM is 10VDC.
Set the torque to be indicated as the full scale value on the meter (10VDC voltmeter) connected between terminal
AM and 5.
Output voltage is proportional to the monitored value of torque. (Maximum output voltage is 10VDC.)
Pulse speed (pulses/s)

Output voltage
2400
(55k)
10VDC
1440
(50k)

150% 400%
150% 400%
(initial value)
(initial value)
Setting range of Pr. 866
Setting range of Pr. 866

(5) Terminal AM response adjustment (Pr. 867)

• Using Pr. 867, the output voltage response of the terminal AM can be adjusted within the range 0 to 5s.
• Increasing the setting stabilizes the terminal AM output more but reduces the response level. (Setting "0" sets the
response level to 7ms)

4
PARAMETERS

239
Monitor display and monitor output signal

4.16.4 Terminal FM, AM calibration (Calibration parameter C0 (Pr. 900), C1 (Pr. 901))
By using the operation panel or parameter unit, you can calibrate terminal FM and terminal AM to full scale
deflection.

Parameter
Name Initial Value Setting Range Description
Number
Calibrate the scale of the meter
C0(900) FM terminal calibration ⎯ ⎯
connected to terminal FM.
Calibrate the scale of the analog meter
C1(901) AM terminal calibration ⎯ ⎯
connected to terminal AM.
*1 The parameter number in parentheses is the one for use with the parameter unit (FR-PU04/FR-PU07).
*2 The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter
write selection.
(1) FM terminal calibration (C0(Pr. 900))
⋅ The terminal FM is preset to output pulses. By setting the Calibration parameter C0 (Pr. 900), the meter connected to
the inverter can be calibrated by parameter setting without use of a calibration resistor.
⋅ Using the pulse train output of the terminal FM, a digital display can be provided by a digital counter. The monitor
value is 1440 pulses/s output at the full-scale value of the table on the previous page (Pr. 54 FM terminal function
selection).

Indicator
1mA full-scale (Digital indicator)
analog meter
1mA 1440 pulses/s(+) (-)
FM FM
(+) (-) T1
Calibration
resistor*1 8VDC
SD SD
T2
Pulse width T1: Adjust using calibration parameter C0
Pulse cycle T2: Set with Pr. 55 (frequency monitor)
Set with Pr.56 (current monitor)
*1 Not needed when the operation panel (FR-DU07) or parameter unit (FR-PU04/FR-PU07) is used for calibration.
This resistor is used when calibration must be made near the frequency meter for such a reason as a remote frequency meter.
Note that the needle of the frequency meter may not deflect to full-scale when the calibration resistor is connected. In this case, use
this resistor and perform calibration of operation panel or parameter unit.
*2 The initial settings are 1mA full-scale and 1440 pulses/s terminal FM frequency at 60Hz.

⋅ Calibrate the terminal FM in the following procedure.

1) Connect an indicator (frequency meter) across the terminals FM-SD of the inverter. (Note the polarity. The
terminal FM is positive.)
2) When a calibration resistor has already been connected, adjust the resistance to "0" or remove the resistor.
3) Refer to the output signal list (page 229) and set Pr. 54. When you selected the running frequency or inverter
output current as the output signal, preset the running frequency or current value, at which the output signal will
be 1440 pulses/s, to Pr. 55 Frequency monitoring reference or Pr. 56 Current monitoring reference. At 1440 pulses/s,
the meter generally deflects to full-scale.
REMARKS
⋅ When calibrating a monitor output signal, which cannot adjust to a 100% value without an actual load and a measurement
equipment, set Pr.54 to "21" (reference voltage output) and make calibration. 1440 pulses/s are output from the terminal FM.
⋅ The wiring length of the terminal FM should be 200m maximum.

CAUTION
⋅ The initial value of the calibration parameter C0 (Pr. 900) is set to 1mA full-scale and 1440 pulses/s FM output frequency at
60Hz. The maximum pulse train output of terminal FM is 2400 pulses/s.
⋅ When a frequency meter is connected to across terminals FM-SD to monitor the running frequency, the FM terminal output is
filled to capacity at the initial setting if the maximum output frequency reaches or exceeds 100Hz. In this case, the Pr. 55 setting
must be changed to the maximum frequency.
⋅ When Pr. 291 Pulse train I/O selection = "10, 11, 20, 21, 100" (high speed pulse train output), calibration using calibration
parameter C0 (Pr. 900) can not be made.

240
 Monitor display and monitor output signal

(2) AM terminal calibration (C1 (Pr. 901))

⋅ Terminal AM is factory-set to provide a 10VDC output in the full-scale

Inverter status of the corresponding monitor item. Calibration parameter C1 (Pr.
AM 901) allows the output voltage ratios (gains) to be adjusted according
to the meter scale. Note that the maximum output voltage is 10VDC.
10VDC

⋅ Calibrate the AM terminal in the following procedure.

1) Connect a 0-10VDC meter (frequency meter) to across inverter terminals AM-5. (Note the polarity. The terminal
AM is positive.)
2) Refer to the monitor description list (page 229) and set Pr. 158.
When you selected the running frequency, inverter output current, etc. as monitor, preset in Pr. 55 or Pr. 56 the
running frequency or current value at which the output signal will be 10V.
3) When outputting the item that cannot achieve a 100% value easily by operation, e.g. output current, set "21"
(reference voltage output) in Pr. 158 and perform the following operation. After that, set "2" (output current, for
example) in Pr. 158.
REMARKS
⋅ When outputting an item, which cannot reach a 100% value easily without actual load or a meter, set Pr. 158 = "21(reference
voltage output)" and perform the calibration. 10VDC is output from the terminal AM.

4
PARAMETERS

241
Monitor display and monitor output signal

(3) How to calibrate the terminal FM when using the operation panel (FR-DU07)

Operation Display
(When Pr. 54=1)
1.Confirmation of the RUN indicator and
operation mode indicator

The parameter
2. Press to choose the parameter
number read
setting mode. previously appears.
C0 to C41
3. Turn until appears. setting
is enabled.
4. Press to display .

5. Turn until appears.

Set to C0 FM terminal calibration.
The monitor set to Pr. 54 FM terminal
6. Press to enable setting.
function selection is displayed.

7. If the inverter is at a stop, (press

or ) to start the inverter.
( )
(Motor needs not be connected.)
+
8. Turn to adjust the indicator needle
Analog indicator
to the desired position.
-
9. Press . Setting is complete.

Flicker...Parameter setting complete!!

Turn to read another parameter.
Press to return to the indication (step 4).

Press twice to show the next parameter ( ).

REMARKS
⋅ Calibration can also be made for external operation. Set the frequency in External operation mode, and make calibration in the
above procedure.
⋅ Calibration can be made even during operation.
⋅ For the operating procedure using the parameter unit (FR-PU04/FR-PU07), refer to the parameter unit instruction manual.
♦ Parameters referred to ♦
Pr. 54 FM terminal function selection Refer to page 229
Pr. 55 Frequency monitoring reference Refer to page 236
Pr. 56 Current monitoring reference Refer to page 236
Pr. 158 AM terminal function selection Refer to page 229
Pr. 291 Pulse train I/O selection Refer to page 356

242
 Operation selection at power failure
and instantaneous power failure

4.17 Operation selection at power failure and instantaneous

power failure
Purpose Parameter that must be Set Refer to Page
At instantaneous power failure Automatic restart operation
Pr. 57, Pr. 58, Pr. 162 to Pr. 165,
occurrence, restart inverter without after instantaneous power 243
Pr. 299, Pr. 611
stopping motor failure/flying start
When undervoltage or a power Power failure-time
failure occurs, the inverter can be deceleration-to-stop Pr. 261 to Pr. 266, Pr. 294 247
decelerated to a stop. function

4.17.1 Automatic restart after instantaneous power failure/flying start

(Pr. 57, Pr. 58, Pr. 162 to Pr. 165, Pr. 299, Pr. 611)

You can restart the inverter without stopping the motor in the following cases.
⋅ when commercial power supply operation is switched to inverter operation
⋅ when power comes back on after an instantaneous power failure
⋅ when motor is coasting at start

Parameter Initial Setting

Name Description
Number Value Range
⋅ 5.5K, 7.5K ................................................... 1s,
0 ⋅ 11K or higher ............................................... 3.0s,
The above times are coasting time.
57 Restart coasting time 9999
Set the waiting time for inverter-triggered restart after an
0.1 to 5s
instantaneous power failure.
9999 No restart
58 Restart cushion time 1s 0 to 60s Set a voltage starting time at restart.
0 With frequency search
1 Without frequency search (reduced voltage system)
Automatic restart after
2 Encoder detection frequency search
162 instantaneous power 0
10 Frequency search at every start
failure selection
11 Reduced voltage system at every start
12 Encoder detection frequency search at every start
First cushion time for
163 0s 0 to 20s Set a voltage starting time at restart.
restart
Consider using these parameters according to the load
First cushion voltage for
164 0% 0 to 100% (moment of inertia, torque) magnitude.
restart
Stall prevention
Consider the rated inverter current as 100% and set the
165 operation level for 150% 0 to 220%
stall prevention operation level during restart operation.
restart
0 Without rotation direction detection
Rotation direction
1 With rotation direction detection
299 detection selection at 0
restarting When Pr. 78 = "0", the rotation direction is detected.
9999
When Pr. 78 = "1","2", the rotation direction is not detected.
4
Set the acceleration time that takes to reach Pr. 20
Acceleration/deceleration reference frequency setting at a
Acceleration time at a 0 to 3600s,
611 5s restart.
PARAMETERS

restart 9999
Acceleration time for restart is the normal acceleration time
(e.g. Pr. 7 ) when "9999" is set.

243
Operation selection at power failure
and instantaneous power failure

(1) Automatic restart after instantaneous power failure operation

15ms to 100ms ⋅ When instantaneous power failure protection (E.IPF) and undervoltage
Power protection (E.UVT) are activated, the inverter trips. (Refer to page 391 for
ON
supply OFF E.IPF and E.UVT.)
IPF ON
When automatic restart after instantaneous power failure operation is set,
OFF
the motor can be restarted if power is restored after an instantaneous
power failure or undervoltage is corrected. (E.IPF and E.UVT are not
activated.)
⋅ When E.IPF and E.UVT are activated, instantaneous power failure/under
voltage signal (IPF) is output.
⋅ The IPF signal is assigned to the terminal IPF in the initial setting. The IPF
signal can also be assigned to the other terminal by setting "2 (positive
logic) or 102 (negative logic)" to any of Pr. 190 to Pr. 196 (output terminal
function selection).

MC2
(2) Connection (CS signal)
⋅ When the automatic restart after instantaneous power failure
selection signal (CS) is turned on, automatic restart operation
MCCB MC1
R/L1 U
MC3 is enabled.
S/L2 V IM ⋅ When Pr. 57 is set to other than "9999" (automatic restart
T/L3 W
R1/L11
operation enabled), the inverter will not operate if used with the
S1/L21 CS signal remained off.
STF
CS MC
SD switchover
sequence REMARKS
CS
Keep the CS signal ON ⋅ The CS signal is assigned to the terminal CS in the initial setting.
during the automatic restart
SD after instantaneous power
By setting "6" in any of Pr. 178 to Pr. 189 (input terminal function
failure or when using only selection), you can assign the CS signal to the other terminal.
the flying start function.
(3) Automatic restart operation selection (Pr. 162, Pr.
When Pr. 162 = 0, 10 (with frequency search)
299)
V/F control, Advanced magnetic flux vector control With frequency search
Instantaneous (power failure) time When "0 (initial value), 10" is set in Pr. 162, the inverter
Power supply smoothly starts after detecting the motor speed upon power
(R/L1, S/L2, restoration.
T/L3) ⋅ During reverse rotation, the inverter can be restarted smoothly
Motor speed N as the direction of rotation is detected.
(r/min) ⋅ You can select whether to make rotation direction detection or
Inverter output * not with Pr. 299 Rotation direction detection selection at restarting.
frequency f(Hz) When capacities of the motor and inverter differ, set "0"
(without rotation direction detection) in Pr. 299.
Inverter output
voltage E(V)
Pr. 78 Setting
Speed Restart cushion Pr. 299 Setting
Coasting time (Pr.58 setting) 0 1 2
+ detection
time (Pr.57) time 9999 × ×
Acceleration time 0 (initial value) × × ×
* The output shut off timing differs
according to the load condition. at a restart 1
(Pr.611 setting)
:with rotation direction detection
× :without rotation direction detection
Real sensorless vector control
Instantaneous (power failure) time REMARKS
Power supply ⋅ Speed detection time (frequency search) changes according to
(R/L1, S/L2, the motor speed. (maximum 500ms)
T/L3) ⋅ When the inverter capacity is two rank or more larger than the
Motor speed N motor capacity, the inverter may not start due to overcurrent trip
(r/min) (E.OC ).
⋅ If two or more motors are connected to one inverter, the inverter
Inverter output functions abnormally. (The inverter does not start smoothly.)
frequency f(Hz) * ⋅ Since the DC injection brake is operated instantaneously when
output voltage the speed is detected at a restart, the speed may reduce if the
E(V) Speed moment of inertia of the load is small.
Coasting detection Acceleration time ⋅ When reverse rotation is detected when Pr. 78 = "1" (reverse
time (Pr.57) + time at a restart rotation disabled), the rotation direction is changed to forward
* The output shut off timing differs (Pr.611 setting) rotation after decelerates in reverse rotation when the start
according to the load condition. command is forward rotation. The inverter will not start when the
start command is reverse rotation.

244
 Operation selection at power failure
and instantaneous power failure

Without frequency search

When Pr. 162 = 1, 11 (without frequency search) When Pr. 162 = "1" or "11", automatic restart operation is
performed in a reduced voltage system, where the voltage is
V/F control, Advanced magnetic flux vector control
gradually risen with the output frequency unchanged from prior
Instantaneous (power failure) time to an instantaneous power failure independently of the
Power supply coasting speed of the motor.
(R/L1, S/L2, For Real sensorless vector control, output frequency and
T/L3) voltage before instantaneous power failure are output. (Pr. 58 is
Motor speed N invalid.)
(r/min)
REMARKS
Inverter output *
frequency f(Hz) ⋅ This system stores the output frequency prior to an
instantaneous power failure and increases the voltage.
Inverter output Therefore, if the instantaneous power failure time exceeds 0.2s,
voltage E(V)
the inverter starts at Pr. 13 Starting frequency (initial value = 0.5Hz)
since the stored output frequency cannot be retained.
Coasting time
Pr.57 setting Restart cushion time
(Pr.58 setting)
* The output shut off timing differs
according to the load condition.

Real sensorless vector control

Instantaneous (power failure) time

Power supply
(R/L1, S/L2,
T/L3)
Motor speed N
(r/min)
Inverter output
frequency f(Hz) *
output voltage
E(V)
Coasting time
Pr.57 setting
* The output shut off timing differs
according to the load condition.

Encoder detection frequency search

When Pr. 162 = 2, 12 (encoder detection ⋅ When "2 or 12" is set in Pr. 162 under encoder feedback
frequency search) control, the motor starts at the motor speed and in the rotation
Instantaneous
direction detected from the encoder at power restoration.
(power failure) time
⋅ Encoder detection frequency search is performed regardless
Power supply of the Pr. 162 setting under vector control.
(R/L1, S/L2, T/L3) ⋅ The Pr. 58 and Pr. 299 settings are invalid for encoder detection
Motor speed N
frequency search.
(r/min)
REMARKS
Inverter output
⋅ When encoder feedback control is invalid, setting "2 or 12" in Pr.
frequency f(Hz)
Output voltage E(V)
* 162 enables frequency search (Pr. 162 = "0, 10").

Coasting time Acceleration time

(Pr.57) at a restart
(Pr.611 setting)
4
* The output shut off timing differs according to the load condition.
Restart operation at every start
PARAMETERS

When Pr. 162 = "10, 11 or 12", automatic restart operation is

also performed every start, in addition to the automatic restart
after instantaneous power failure. When Pr. 162 = "0" or "2",
automatic restart operation is performed at the first start after
power supply-on, but the inverter starts at the starting
frequency at the second time or later.

245
Operation selection at power failure
and instantaneous power failure

(4) Restart coasting time (Pr. 57)

⋅ Coasting time is the time from when the motor speed is detected until automatic restart control is started.
⋅ Set Pr. 57 to "0" to perform automatic restart operation. The coasting time is automatically set to the value below.
Generally this setting will pose no problems.
5.5K, 7.5K . . . . . . . 1s, 11K or higher . . . . . . 3.0s
⋅ Operation may not be performed well depending on the magnitude of the moment of inertia (J) of the load or
running frequency. Adjust the coasting time between 0.1s and 5s according to the load specifications.

(5) Restart cushion time (Pr. 58)

⋅ Cushion time is the length of time taken to raise the voltage appropriate to the detected motor speed (output
frequency prior to instantaneous power failure when Pr. 162 = "1" or "11").
⋅ Normally the initial value need not be changed for operation, but adjust it according to the magnitude of the
moment of inertia (J) of the load or torque.
⋅ Pr. 58 is invalid during encoder feedback control (Pr. 162 = "2, 12"), Real sensorless vector control or vector control.

(6) Automatic restart operation adjustment (Pr. 163 to

Voltage
Pr. 165, Pr. 611)
100%
⋅ Using Pr. 163 and Pr. 164, you can adjust the voltage rise time at
a restart as shown on the left.
⋅ Using Pr. 165, you can set the stall prevention operation level at
Pr. 164 a restart.
⋅ Using Pr. 611, you can set the acceleration time until Pr. 20
Acceleration/deceleration reference frequency is reached when
automatic restart operation is performed besides the normal
acceleration time.
(Pr. 163) Pr. 58 Time

REMARKS
⋅ If the setting of Pr. 21 Acceleration/deceleration time increments is
changed, the setting increments of Pr. 611 does not change.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
⋅ When automatic restart operation is selected, undervoltage protection (E.UVT) and instantaneous power failure protection
(E.IPF) among the fault output signals will not be provided at occurrence of an instantaneous power failure.
⋅ The SU and FU signals are not output during a restart. They are output after the restart cushion time has elapsed.
⋅ Automatic restart operation will also be performed after a reset or when a retry is made by the retry function.
⋅ Automatic restart after instantaneous power failure function is invalid when load torque high speed frequency control (Pr. 270 =
"2, 3") is set.

CAUTION
Provide mechanical interlocks for MC1 and MC2. The inverter will be damaged if the power supply is input to the
inverter output section.
When automatic restart after instantaneous power failure has been selected, the motor and machine will start
suddenly (after the reset time has elapsed) after occurrence of an instantaneous power failure. Stay away from
the motor and machine. When you have selected automatic restart after instantaneous power failure function,
apply in easily visible places the CAUTION stickers supplied to the Instruction Manual (Basic).

♦ Parameters referred to ♦
Pr. 7 Acceleration time, Pr. 21 Acceleration/deceleration time increments Refer to page 155
Pr. 13 Starting frequency Refer to page 157
Pr. 65, Pr. 67 to Pr. 69 Retry function Refer to page 250
Pr. 78 Reverse rotation prevention selection Refer to page 285
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

246
 Operation selection at power failure
and instantaneous power failure

4.17.2 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266, Pr. 294 )
When a power failure or undervoltage occurs, the inverter can be decelerated to a stop or can be decelerated
and re-accelerated to the set frequency.

Parameter Initial
Name Setting Range Description
Number Value
Coasting to stop
0 When undervoltage or power failure occurs, the inverter output
is shut off.
Without under
1 When undervoltage or a power failure
voltage avoidance
occurs, the inverter can be decelerated
Power failure stop With under
261 0 11 to a stop.
selection voltage avoidance
Without under When undervoltage or a power failure
2
voltage avoidance occurs, the inverter can be decelerated
to a stop.
With under
12 If power is restored during a power
voltage avoidance
failure, the inverter accelerates again.
Normally operation can be performed with the initial value
Subtracted frequency at
262 3Hz 0 to 20Hz unchanged. But adjust the frequency according to the
deceleration start
magnitude of the load specifications (moment of inertia, torque).
When output frequency ≥ Pr. 263
Decelerate from the speed obtained from output frequency
0 to 120Hz minus Pr. 262.
Subtraction starting
263 60Hz When output frequency < Pr. 263
frequency
Decelerate from output frequency
Decelerate from the speed obtained from output frequency
9999
minus Pr. 262.
Power-failure deceleration
264 5s 0 to 3600/ 360s * Set a deceleration slope down to the frequency set in Pr. 266.
time 1
Power-failure deceleration 0 to 3600/ 360s * Set a deceleration slope below the frequency set in Pr. 266.
265 9999
time 2 9999 Same slope as in Pr. 264
Power failure deceleration Set the frequency at which the deceleration slope is switched
266 60Hz 0 to 400Hz
time switchover frequency from the Pr. 264 setting to the Pr. 265 setting.
Adjust the response level during undervoltage avoidance
294 UV avoidance voltage gain 100% 0 to 200% operation. A larger setting will improve responsiveness to the
bus voltage change.
* When the setting of Pr. 21 Acceleration/deceleration time increments is "0" (initial value), the setting range is "0 to 3600s" and the setting increments are
"0.1s", and when the setting is "1", the setting range is "0 to 360s" and the setting increments are "0.01s"
(1) Connection and parameter setting
Inverter
R/L1 ⋅ Remove the jumpers across terminals R/L1-R1/L11 and
Power supply S/L2 across terminals S/L2-S1/L21, and connect terminals R1/
T/L3 L11 and P/+ and terminals S1/L21 and N/-.
Remove the jumper R1/L11
S1/L21
⋅ When setting of Pr. 261 is not "0", the inverter decelerates to
Connect terminals
P/+ a stop if an undervoltage, power failure or input phase loss
R1/L11 and P/+
and terminals N/− (when Pr. 872 ="1"(input phase loss enabled)) occurs.
S1/L21 and N/-.

4
Power supply
(2) Operation outline of deceleration to stop at
Output
Pr.264 power failure
Subtracted Power-failure
frequency frequency at deceleration time 1 ⋅ If an undervoltage or power failure occurs, the output
PARAMETERS

Power-failure deceleration start Pr.265 frequency is dropped by the frequency set in Pr. 262 .
deceleration Pr.262
time switchover
Power-failure
deceleration ⋅ Deceleration is made in the deceleration time set in Pr. 264.
frequency time 2 (The deceleration time setting is the time required from Pr. 20
Pr.266 Time Acceleration/deceleration reference frequency to a stop.)
⋅ When the frequency is low and enough regeneration energy
is not provided, for example, the deceleration time (slope)
from Pr. 265 to a stop can be changed.

247
Operation selection at power failure
and instantaneous power failure

(3) Power failure stop function (Pr. 261 = "1, 11")

Pr.261 = 1 ⋅ If power is restored during power failure deceleration, deceleration
Power
to a stop is continued and the inverter remains stopped. To restart,
supply
During deceleration at
turn off the start signal once, then turn it on again.
Output frequency

occurrence of power failure REMARKS

During stop at
occurrence of Power supply ON
power failure Not started as inverter Output
is stopped due to power frequency
failure
Time
Time STF OFF ON
STF Y46 ON
Y46 ⋅ When automatic restart after instantaneous power failure is selected
(Pr. 57 ≠ "9999"), deceleration to stop function is invalid and the
Turn off STF once to make acceleration again restart after instantaneous power failure operation is performed.
⋅ When the power failure stop function is active (Pr. 261 = "1, 11"), the
inverter will not start even if the power is turned ON with the start
signal (STF/STR) ON. After switching ON the power supply, turn OFF
the start signal once and then ON again to make a start.

(4) Original operation continuation at instantaneous power failure function (Pr. 261 = "2, 12")
⋅ When power is restored during deceleration after an instantaneous power failure, acceleration is made again up to
the set frequency.
⋅ When this function is used in combination with the automatic restart after instantaneous power failure operation,
deceleration can be made at a power failure and acceleration can be made again after power restoration. When
power is restored after a stop by deceleration at an instantaneous power failure, automatic restart operation is
performed if automatic restart after instantaneous power failure has been selected (Pr. 57 ≠ "9999")

When power is restored during When used with automatic restart

Pr. 261 = 2 Pr.261 = 2, Pr.57 9999
deceleration at occurrence of after instantaneous power failure
power failure
IPF
Power During power failure
supply Power
supply
Output
frequency During deceleration Output
at occurrence of Reacceleration*
frequency Automatic restart
During deceleration
power failure after instantaneous
at occurrence of
Time
power failure power failure
Y46
Time
* Acceleration time depends on Pr. 7 (Pr. 44 ). Reset time + Pr.57
Y46

(5) Undervoltage avoidance function (Pr. 261 = "11, 12", Pr. 294 )
⋅ When Pr. 261 = "11, 12", the deceleration time is automatically adjusted (shortened) to prevent undervoltage from
occurring during deceleration at an instantaneous power failure.
⋅ Adjust the slope of frequency decrease and response level with Pr. 294. A larger setting will improve
responsiveness to the bus voltage.

REMARKS
Undervoltage avoidance function is invalid during torque control by Real sensorless vector control. When Pr. 261 = "11 (12)", the
inverter operates in the same manner as when "1 (2)" is set in Pr. 261.

248
 Operation selection at power failure
and instantaneous power failure

(6) Power failure deceleration signal (Y46 signal)

⋅ After deceleration at an instantaneous power failure, inverter can not start even if the start command is given. In
this case, check the power failure deceleration signal (Y46 signal). (at occurrence of input phase failure protection
(E.ILF), etc.)
⋅ The Y46 signal is on during deceleration at an instantaneous power failure or during a stop after deceleration at an
instantaneous power failure.
⋅ For the Y46 signal, set "46 (positive logic)" or "146 (negative logic)" in any of Pr. 190 to Pr. 196 (output terminal
function selection) to assign the function.

CAUTION
⋅ When the (output frequency - Pr. 262) at undervoltage or power failure occurrence is negative, the calculation result is regarded
as 0Hz. (DC injection brake operation is performed without deceleration).
⋅ During a stop or trip, the power failure stop selection is not performed.
⋅ Y46 signal turns on when undervoltage occurs even when the motor is not decelerating at an instantaneous power failure.
For this reason, Y46 signal outputs instantly at powering off, which is not a fault.
⋅ When power failure deceleration stop function is selected, undervoltage protection (E.UVT), instantaneous power failure
protection (E.IPF), and input phase loss protection (E.ILF) do not function.
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

CAUTION
If power-failure stop function is set, some loads may cause the inverter to trip and the motor to coast. The motor
will coast if enough regenerative energy is given from the motor.

♦ Parameters referred to ♦
Pr. 12 DC injection brake operation voltage Refer to page 185
Pr. 20 Acceleration/deceleration reference frequency, Pr. 21 Acceleration/deceleration time increments Refer to page 155
Pr. 57 Restart coasting time Refer to page 243
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
Pr. 872 Input phase loss protection selection Refer to page 253

4
PARAMETERS

249
Operation setting at fault occurrence

4.18 Operation setting at fault occurrence

Refer to
Purpose Parameter that must be Set
Page
Recover by retry operation at fault
Retry operation Pr. 65, Pr. 67 to Pr. 69 250
occurrence
Output fault code from terminal Fault code output function Pr. 76 252
Do not output input/output phase Input/output phase loss
Pr. 251, Pr. 872 253
failure alarm protection selection
The motor is decelerated to stop at
Fault definition Pr. 875 254
motor thermal activation

4.18.1 Retry function (Pr. 65, Pr. 67 to Pr. 69)

If a fault occurs, the inverter resets itself automatically to restart. You can also select the fault description for a
retry.
When automatic restart after instantaneous power failure is selected (Pr. 57 Restart coasting time ≠ "9999"), restart
operation is performed at retry operation as at an instantaneous power failure. (Refer to page 243 for the restart
function.)

Parameter Initial Setting

Name Description
Number Value Range
65 Retry selection 0 0 to 5 A fault for retry can be selected. (Refer to the next page)
0 No retry function
Set the number of retries at fault occurrence.
1 to 10
Number of retries at fault A fault output is not provided during retry operation.
67 0
occurrence Set the number of retries at fault occurrence. (The
101 to 110 setting value of minus 100 is the number of retries.)
A fault output is provided during retry operation.
Set the waiting time from when an inverter fault occurs
68 Retry waiting time 1s 0 to 10s
until a retry is made.
69 Retry count display erase 0 0 Clear the number of restarts succeeded by retry.

Retry success example ⋅ Retry operation automatically resets a fault and

Retry success restarts the inverter at the starting frequency when the
time set in Pr. 68 elapses after the inverter is tripped.
Pr. 68 5 ⋅ Retry operation is performed by setting Pr. 67 to any
value other than "0". Set the number of retries at fault
Pr. 68
Inverter occurrence in Pr. 67.
output ⋅ When retries fail consecutively more than the number
frequency of times set in Pr. 67 , a retry count excess fault
0 (E.RET) occurs, resulting in inverter trip.
Time (Refer to retry failure example)
Retry start Success count + 1 ⋅ Use Pr. 68 to set the waiting time from when an inverter
Fault occurrence
trips until a retry is made in the range 0 to 10s. (When
Retry success count the setting value is "0s", the actual time is 0.1s.)
⋅ Reading the Pr. 69 value provides the cumulative
Y64 ON number of successful restart times made by retry. The
cumulative count in Pr. 69 is increased by 1 when a
Retry failure example retry is regarded as successful after normal operation
continues without faults occurring for more than four
times longer than the time set in Pr. 68 after a retry start.
Pr. 68 Pr. 68 Pr. 68
Inverter (When retry is successful, cumulative number of retry
output failure is cleared.)
frequency ⋅ Writing "0" in Pr. 69 clears the cumulative count.
0
⋅ During a retry, the Y64 signal is on. For the Y64 signal,
Time
assign the function by setting "64 (positive logic)" or
First Second Third
"164 (negative logic)" in any of Pr. 190 to Pr. 196 (output
Fault retry Fault retry Fault retry Retry failure
terminal function selection) .
occurrence occurrence occurrence (E.RET)
Fault signal CAUTION
ON
(ALM) Changing the terminal assignment using Pr. 190 to Pr. 196
ON ON ON (output terminal function selection) may affect the other
Y64
functions. Set parameters after confirming the function of
each terminal.

250
 Operation setting at fault occurrence

⋅ Using Pr. 65 you can select the fault that will cause a retry to be executed. No retry will be made for the fault not
indicated. (Refer to page 384 for the fault description.)
indicates the errors selected for retry.
Fault for Pr. 65 Setting Fault for Pr. 65 Setting
Retry 0 1 2 3 4 5 Retry 0 1 2 3 4 5
E.OC1 E.MB2
E.OC2 E.MB3
E.OC3 E.MB4
E.OV1 E.MB5
E.OV2 E.MB6
E.OV3 E.MB7
E.THM E.OS
E.THT E.OSD
E.IPF E.OD
E.UVT E.PTC
E. GF E.CDO
E.OHT E.SER
E.OLT E.USB
E.OPT E.ILF
E.OP3 E.4
E. PE E.8
E.MB1 E.10
CAUTION
⋅ For a retry error, only the description of the first fault is stored.
⋅ When an inverter fault is reset by the retry function at the retry time, the accumulated data of the electronic thermal relay
function etc. are not cleared. (Different from the power-on reset.)
⋅ Retry is not performed if E.PE (Parameter storage device fault) occurred at power on.
⋅ If a fault that is not selected for a retry occurs during retry operation (retry waiting time), the retry operation stops while the fault
indication is still displayed.

CAUTION
When you have selected the retry function, stay away from the motor and machine when the inverter is tripped.
They will start suddenly (after the reset time has elapsed) after the inverter trip.
When you have selected the retry function, apply in easily visible places the CAUTION stickers supplied to the
Instruction Manual (Basic).

♦ Parameters referred to ♦
Pr. 57 Restart coasting time Refer to page 243

4
PARAMETERS

251
Operation setting at fault occurrence

4.18.2 Fault code output selection (Pr. 76)

At fault occurrence, its description can be output as a 4-bit digital signal from the open collector output terminals.
The fault code can be read by a programmable controller, etc., and its corrective action can be shown on a
display, etc.

Parameter
Name Initial Value Setting Range Description
Number
0 Without fault code output
With fault code output
1
76 Fault code output selection 0 (Refer to the following table)
Fault code output at fault occurrence
2
only (Refer to the following table)

⋅ By setting Pr. 76 to "1" or "2", the fault code can be output to the output terminals.
⋅ When the setting is "2", a fault code is output at only fault occurrence, and during normal operation, the terminals
output the signals assigned to Pr. 191 to Pr. 194 (output terminal function selection).
⋅ The following table indicates fault codes to be output. (0: output transistor off, 1: output transistor on)

Operation Panel Output of Output Terminals

Indication Fault Code
(FR-DU07) SU IPF OL FU
Normal * 0 0 0 0 0
E.OC1 0 0 0 1 1
E.OC2 0 0 1 0 2
E.OC3 0 0 1 1 3
E.OV1 to E.OV3 0 1 0 0 4
E.THM 0 1 0 1 5
E.THT 0 1 1 0 6
E.IPF 0 1 1 1 7
E.UVT 1 0 0 0 8
E.FIN 1 0 0 1 9
E. GF 1 0 1 1 B
E.OHT 1 1 0 0 C
E.OLT 1 1 0 1 D
E.OPT 1 1 1 0 E
E.OP3 1 1 1 0 E
Other than the above 1 1 1 1 F
* When Pr. 76 = "2", the output terminals output the signals assigned to Pr. 190 to Pr. 196 .

CAUTION
⋅ When a value other than "0" is set in Pr. 76
When a fault occurs, the output terminals SU, IPF, OL, FU output the signal in the above table, independently of the Pr. 191 to
Pr. 194 (output terminal function selection) settings. Please be careful when inverter control setting has been made with the output
signals of Pr. 191 to Pr. 194.

♦ Parameters referred to ♦
Pr. 191 to Pr. 194 (output terminal function selection) Refer to page 215

252
 Operation setting at fault occurrence

4.18.3 Input/output phase loss protection selection (Pr. 251, Pr. 872)
You can disable the output phase loss protection function that trips the inverter if one phase of the inverter output
side (load side) three phases (U, V, W) is lost.
The input phase loss protection function of the inverter input side (R/L1, S/L2, T/L3) can be invalid.

Parameter
Number Name Initial Value Setting Range Description

Output phase loss protection 0 Without output phase loss protection

251 1
selection 1 With output phase loss protection
Input phase loss protection 0 Without input phase loss protection
872 1
selection 1 With input phase loss protection

(1) Output phase loss protection selection (Pr. 251)

⋅ When Pr. 251 is set to "0", output phase loss protection (E.LF) becomes invalid.
(2) Input phase loss protection selection (Pr. 872)
⋅ When Pr. 872 is set to "1"(initial value), input phase loss protection (E.ILF) is provided if a phase loss of one phase
among the three phases is detected for 1s continuously.
⋅ When Pr.872 is set to "0", input phase loss protection (E.ILF) becomes invalid.

REMARKS
If input phase is lost when Pr. 872 = "1" (with input phase loss) and Pr. 261 ≠ "0" (power failure stop function valid), input phase
loss protection (E.ILF) is not provided but power-failure deceleration is made.

CAUTION
⋅ When an input phase loss occurs in the R/L1 and S/L2 phases, input phase loss protection is not provided but the inverter
output is shut off.
⋅ If an input phase loss continues for a long time, the converter section and capacitor lives of the inverter will be shorter.

♦ Parameters referred to ♦
Pr. 261 Power failure stop selection Refer to page 247

4.18.4 Overspeed detection (Pr. 374)

Parameter Name Initial Value Setting Range Description
Number
When the motor speed reaches or exceeds
the speed set in Pr. 374 during encoder
374 Overspeed detection level 140Hz 0 to 400Hz feedback control, Real sensorless vector
control, or vector control, over speed (E.OS)
occurs and trips the inverter.

Motor speed *
Pr. 374
Coast to stop

Time

ALM ON * The output frequency and Pr. 374 are compared during 4
Real sensorless vector control.
E.OS
PARAMETERS

4.18.5 Encoder signal loss detection (Pr. 376) V/F Magnetic flux Vector

When the encoder signal is lost during encoder feedback control, orientation control, or vector control, signal loss
detection (E.ECT) is activated to trip the inverter.

Parameter Name Initial Value Setting Range Description

Number
Encoder signal loss 0 Signal loss detection is invalid
376 detection enable/disable 0
1 Signal loss detection is valid
selection
* Setting can be made only when the FR-A7AP/FR-A7AL (option) is mounted.

253
Operation setting at fault occurrence

4.18.6 Fault definition (Pr. 875)

When motor thermal protection is activated, a fault can be output after the motor decelerates to a stop.

Parameter Initial Setting

Number Name Range Description
Value
0 Normal operation
875 Fault definition 0
1 The motor decelerates to stop when motor thermal protection is activated.

(1) The inverter trips immediately at occurrence of any

fault (setting value is "0", initial value)
⋅ The inverter trips immediately and a fault signal output is provided at
fault occurrence.
(2) The motor decelerates to stop when motor thermal
When Pr. 875 = "1"
protection is activated (setting value is "1")
Output
speed
⋅ When external thermal relay (OHT), motor overload
(electronic thermal relay function) (THM) or PTC thermistor
Fault output ON (PTC) is activated, turning on the alarm output 2 signal (ER)
(ALM, ALM2) starts the motor to decelerate and provides a fault after deceleration to
Alarm ON a stop.
output 2
⋅ When the ER signal turns on, decrease load, etc. to allow the inverter
(ER)
OHT E.OHT to decelerate.
occurrence display
⋅ At occurrence of a fault other than OHT, THM and PTC, the inverter
trips immediately and a fault signal is output.
⋅ Set "97 (positive logic) or 197 (negative logic)" in Pr. 190 to Pr. 196 (output
terminal function selection) and assign the ER signal to the output terminal.
⋅ This function is invalid during position control.
CAUTION
⋅ The value "0" is recommended for the system in which the motor continues running without deceleration due to a large torque
on the load side.
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215

254
 Energy saving operation and energy saving monitor

4.19 Energy saving operation and energy saving monitor

Refer to
Purpose Parameter that must be Set
Page
Energy saving operation Energy saving operation Pr. 60 255
Pr. 52, Pr. 54, Pr. 158,
How much energy can be saved Energy saving monitor 256
Pr. 891 to Pr. 899

4.19.1 Energy saving control (Pr. 60) V/F

Without a detailed parameter setting, the inverter automatically performs energy saving control.
This function is optimal for fan and pump applications.

Parameter
Name Initial Value Setting Range Description
Number
0 Normal operation mode
60 Energy saving control selection* 0
4 Energy saving operation mode
* When parameter is read using the FR-PU04, a parameter name different from an actual parameter is displayed.

Energy saving operation mode (setting "4")

⋅ When "4" is set in Pr. 60, the inverter operates in the energy saving operation mode.
⋅ In the energy saving operation mode, the inverter automatically controls the output voltage to minimize the inverter
output voltage during a constant operation.
REMARKS
⋅ For applications a large load torque is applied to or machines repeat frequent acceleration/deceleration, an energy saving effect
is not expected.

CAUTION
⋅ When the energy saving mode is selected, deceleration time may be longer than the setting value. Since overvoltage alarm
tends to occur as compared to the constant torque load characteristics, set a longer deceleration time.
⋅ The energy saving operation mode functions only under V/F control. When the Advanced magnetic flux vector control, Real
sensorless vector control and vector control are selected, the energy saving mode is invalid.
⋅ Since output voltage is controlled in energy saving operation mode, output current may slightly increase.

4
PARAMETERS

255
Energy saving operation and energy saving monitor

4.19.2 Energy saving monitor (Pr. 891 to Pr. 899)

From the power consumption estimated value during commercial power supply operation, the energy saving
effect by use of the inverter can be monitored/output.

Parameter Initial
Name Setting Range Description
Number Value
0
DU/PU main display data 0, 5 to 8, 10 to 14, 17 to 20, 22 50:Power saving monitor
52 (output
selection to 25, 32 to 35, 50 to 57, 100 51:Cumulative saving power monitor
frequency)
FM terminal function
54 1
selection 1 to 3, 5 to 8, 10 to 14, 17, 18,
(output 50:Power saving monitor
AM terminal function 21, 24, 32 to 34, 50, 52, 53
158 frequency)
selection
Set the number of times to shift the
cumulative power monitor digit
0 to 4
Clamps the monitor value at
Cumulative power monitor
891 9999 maximum.
digit shifted times
No shift
9999 Clears the monitor value when it
exceeds the maximum value.
Set the load factor for commercial
power supply operation. Multiplied by
892 Load factor 100% 30 to 150% the power consumption rate (page 259)
during commercial power supply
operation.
Set the motor capacity (pump
Rated
Energy saving monitor capacity). Set when calculating power
893 inverter 0.1 to 55kW
reference (motor capacity) saving rate, power saving rate average
capacity
value, commercial operation power.
0 Discharge damper control (fan)
Control selection during 1 Inlet damper control (fan)
894 commercial power supply 0 2 Valve control (pump)
operation Commercial power supply drive (fixed
3
value)
Consider the value during commercial
0
Power saving rate power supply operation as 100%
895 9999
reference value 1 Consider the Pr. 893 setting as 100%.
9999 No function
Set the power unit cost. Displays the
0 to 500 power saving amount charge on the
896 Power unit cost 9999
energy saving monitor.
9999 No function
0 Average for 30 minutes
Power saving monitor
897 9999 1 to 1000h Average for the set time
average time
9999 No function
0 Cumulative monitor value clear
1 Cumulative monitor value hold
Totalization continued
Power saving cumulative 10
898 9999 (communication data upper limit 9999)
monitor clear
Totalization continued
9999 (communication data upper limit
65535)
Use for calculation of annual power
saving amount. Set the annual
Operation time rate 0 to 100%
899 9999 operation ratio (consider 365 days ×
(estimated value)
24hr as 100%).
9999 No function
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.

256
 Energy saving operation and energy saving monitor

(1) Energy saving monitor list

⋅ The following provides the items that can be monitored by the power saving monitor (Pr. 52, Pr. 54, Pr. 158 = "50").
(Only 1) power saving and 3) power saving average value can be output to Pr. 54 (terminal FM) and Pr. 158
(terminal AM))
Energy Saving Incre- Parameter Setting
Description and Formula
Monitor Item ments Pr. 895 Pr. 896 Pr. 897 Pr. 899
Difference between the estimated value of power
necessary for commercial power supply operation
1) Power saving and the input power calculated by the inverter 0.01kW 9999
Power during commercial power supply
operation − input power monitor
Ratio of power saving on the assumption that power
during commercial power supply operation is 100%
1) Power saving 0 ⎯ 9999
× 100
Power during commercial
2) Power saving rate power supply operation 0.1%
Ratio of power saving on the assumption that Pr.
893 is 100%
1) Power saving 1
× 100
Pr. 893
Average value of power saving amount per hour
Power saving average during predetermined time (Pr. 897) ⎯
3) Σ ( 1) Power saving × Δt) 0.01kWh 9999
value
Pr. 897
Ratio of power saving average value on the
assumption that the value during commercial
power supply operation is 100% 0 9999
Σ ( 2) Power saving rate × Δt) 0 to
× 100
Power saving rate Pr. 897 1000h
4) 0.1%
average value Ratio of power saving average value on the
assumption that Pr. 893 is 100%
3) Power saving average value 1
× 100
Pr. 893
Power saving average value represented in terms
Power saving amount 0 to
5) of charge 0.01 ⎯
average value 500
3) Power saving average value × Pr. 896
⋅ The following shows the items which can be monitored by the cumulative saving power monitor (Pr. 52 = "51").
(The monitor value of the cumulative monitor can be shifted to the right with Pr. 891 Cumulative power monitor digit
shifted times.)
Energy Saving Incre- Parameter Setting
Description and Formula
Monitor Item ments Pr. 895 Pr. 896 Pr. 897 Pr. 899
Power saving Power saving is added up per hour. 0.01kWh
6) ⎯ 9999
amount Σ ( 1) Power saving × Δt) *1*2
9999
Power saving Power saving amount represented in terms of charge 0 to
7) 0.01 *1 ⎯
amount charge 6) Power saving amount × Pr. 896 500
Estimated value of annual power saving amount
Annual power 6) Power saving amount Pr. 899 0.01kWh ⎯ 4
8) × 24 × 365 × ⎯ 9999
saving amount Operation time during accumulation 100 *1*2
0 to
of power saving amount
100%
PARAMETERS

Annual power Annual power saving amount represented in terms of 0 to

9) saving amount charge 0.01*1 ⎯
charge 8) Annual power saving amount × Pr. 896 500
*1 For communication (RS-485 communication, communication option), the display increments are 1. For example, the communication data is
"10" for "10.00kWh".
*2 When using the parameter unit (FR-PU04/FR-PU07), "kW" is displayed.

REMARKS
⋅ As the operation panel (FR-DU07) is 4-digit display, it displays in 0.1 increments since a carry occurs, e.g. "100.0", when a
monitor value in 0.01 increments exceeds "99.99". The maximum display is "9999".
⋅ As the operation panel (FR-PU04/FR-PU07) is 5-digit display, it displays in 0.1 increments since a carry occurs, e.g. "1000.0",
when a monitor value in 0.01 increments exceeds "999.99". The maximum display is "99999".
⋅ The upper limit of communication (RS-485 communication, communication option) is "65535" when Pr. 898 Power saving
cumulative monitor clear = "9999". The upper limit of 0.01 increments monitor is "655.35" and that of 0.1 increments monitor is
"6553.5".

257
Energy saving operation and energy saving monitor

(2) Power saving instantaneous monitor ( 1) power savings, 2) power saving rate )
⋅ On the power saving monitor ( 1)), an energy saving effect as compared to the power consumption during
commercial power supply operation (estimated value) is calculated and displays on the main monitor.
⋅ In the following case, the power saving monitor ( 1)) is "0".
(a)Calculated values of the power saving monitor are negative values.
(b)During the DC injection brake operation
(c)Motor is not connected (output current monitor is 0A)
⋅ On the power saving rate monitor ( 2)), setting "0" in Pr. 895 Power saving rate reference value displays the power
saving rate on the assumption that power (estimated value) during commercial power supply operation is 100%.
When Pr. 895 = "1", the power saving rate on the assumption that the Pr. 893 Energy saving monitor reference (motor
capacity) value is 100% is displayed.

(3) Power saving average value monitor ( 3) power saving average value, 4) average power
saving rate average value, 5) power saving amount average value)
⋅ Power saving average value monitor can be displayed when a value other than "9999" is set in Pr. 897 Power saving
monitor average time.
⋅ The power saving average value monitor ( 3)) displays the average value per unit time of the power saving amount
at averaging.
⋅ The average value is updated every time an average time has elapsed after the Pr. 897 setting is changed, power is
turned on or the inverter is reset, assuming as a starting point. The power savings average value update timing
signal (Y92) is inverted every time the average value is updated.

When Pr.897=4 [Hr] Power

is off
Power saving During stop
instantaneous
value [kW]
0 4 8 12 16 20 T
Operation start Average Average Average Last value
Pr. 897 setting
Power saving 0 in the first Average
average value measurement
[kW] Stores Hi/Low when the
power is off and starts.
Y92: power saving
average value 0 4 8 12 16 0 4
update timing signal

⋅ The power saving average value monitor ( 4)) displays the average value per unit time of power saving rate ( 2)) at
every average time by setting "0" or "1" in Pr. 895 Power saving rate reference value.
⋅ By setting the charge (power unit) per 1kWh of power amount in Pr. 896 Power unit cost, the power saving amount
average value monitor ( 5)) displays the charge relative to the power saving average value (power saving average
value ( 3)) × Pr. 896).

(4) Cumulative saving power monitor ( 6) power saving amount, 7) power saving amount
charge, 8) annual power saving amount, 9) annual power saving amount charge)
⋅ On the cumulative saving power monitor, the monitor data digit can be shifted to the right by the number of Pr. 891
Cumulative power monitor digit shifted times settings. For example, if the cumulative power value is 1278.56kWh
when Pr. 891 = "2", the PU/DU display is 12.78 (display in 100kWh increments) and the communication data is 12.
If the maximum value is exceeded at Pr. 891 = "0 to 4", the power is clamped at the maximum value, indicating that
a digit shift is necessary. If the maximum value is exceeded at Pr. 891 = "9999", the power returns to 0 and is
recounted. The other monitors are clamped at the display maximum value.
⋅ The cumulative saving power monitor ( 6)) can measure the power amount during a predetermined period.
Measure according to the following steps
1) Write "9999" or "10" in Pr. 898 Power saving cumulative monitor clear.
2) Write "0" in Pr. 898 at measurement start timing to clear the cumulative saving power monitor value and start
totalization of power saving.
3) Write "1" in Pr. 898 at measurement end timing to hold the cumulative saving power monitor value.
REMARKS
⋅ The cumulative saving power monitor value is stored every hour. Hence, when the power supply is switched on again within one
hour after it was switched off, the previously stored monitor value is displayed and totalization starts. (The cumulative monitor
value may decrease)

258
 Energy saving operation and energy saving monitor

(5) Power estimated value of commercial power supply operation (Pr. 892, Pr. 893, Pr. 894)
⋅ Select the commercial power supply operation pattern from among the four patterns of discharge damper control
(fan), inlet damper control (fan), valve control (pump) and commercial power supply drive, and set it to Pr. 894
Control selection during commercial power supply operation.
⋅ Set the motor capacity (pump capacity) in Pr. 893 Energy saving monitor reference (motor capacity).
⋅ The power consumption rate (%) during commercial power supply operation is estimated from the operation
pattern and the ratio of speed to rating (current output frequency/Pr. 3 Base frequency) in the following chart.

Commercial power supply drive

110
100
Discharge side
90 damper control
(fan)
Power consumption [%]

80
Valve control
70 (pump)

60
50
40 Inlet damper control
(fan)
30
20
10
0
0 10 20 30 40 50 60 70 80 90100110
Ratio of speed to rating [%]

⋅ From the motor capacity set in Pr. 893 and Pr. 892 Load factor, the power estimated value (kW) during commercial
power supply operation is found by the following formula.
Power estimated value (kW) during commercial power supply operation
Power consumption (%) Pr. 892 (%)
= Pr. 893 (kW) × ×
100 100

REMARKS
⋅ Since the speed does not increase above the power supply frequency in commercial power supply operation, it becomes
constant when the output frequency rises to or above Pr. 3 Base frequency.

4
PARAMETERS

259
Energy saving operation and energy saving monitor

(6) Annual power saving amount, power charge (Pr. 899)

⋅ By setting the operation time rate [%] (ratio of time when the motor is actually driven by the inverter during a year)
in Pr. 899, the annual energy saving effect can be predicted.
⋅ When the operation pattern is predetermined to some degree, the estimated value of the annual power saving
amount can be found by measurement of the power saving amount during a given measurement period.
⋅ Refer to the following and set the operation time rate.
1) Predict the average time [h/day] of operation in a day.
2) Find the annual operation days [days/year]. (Monthly average operation days × 12 months)
3) Calculate the annual operation time [h/year] from 1) and 2).

Annual operation time (h/year) = Average time (h/day) × Operation days (days/year)

4) Calculate the operation time rate and set it to Pr. 899.

Annual operation time (h/year)

Operation time rate (%) = 24 (h/day) × 365 (days/year) × 100(%)

REMARKS
⋅ Operation time rate setting example: When operation is performed for about 21 hours per day and the monthly average
operation days are 16 days
Annual operation time = 21 (h/day) × 16 (days/month) × 12 months = 4032 (h/year)
4032 (h/year)
Operation time rate (%) = 24 (h/day) × 365 (days/year) × 100(%) = 46.03%
Set 46.03% to Pr. 899.

⋅ Calculate the annual power saving amount from Pr. 899 Operation time rate (estimated value) and power saving
average value monitor

Power saving average value Pr. 899

Annual power saving amount (kWh/year) = (kW) during totalization × 24h × 365 days × 100
when Pr. 898 = 10 or 9999

⋅ The annual power saving amount charge can be monitored by setting the power charge per hour in Pr. 896 Power
unit cost.
Calculate the annual power saving amount charge in the following method.

Annual power saving amount charge = Annual power saving amount (kWh/year) × Pr. 896

REMARKS
In the regeneration mode, make calculation on the assumption that "power saving = power during commercial power supply
operation (input power = 0)".

♦ Parameters referred to ♦
Pr. 3 Base frequency Refer to page 142
Pr. 52 DU/PU main display data selection Refer to page 229
Pr. 54 FM terminal function selection Refer to page 229
Pr. 158 AM terminal function selection Refer to page 229

260
 Motor noise, EMI measures

4.20 Motor noise, EMI measures

4.20.1 PWM carrier frequency and Soft-PWM control (Pr. 72, Pr. 240)

You can change the motor sound.

Parameter Initial Setting

Name Description
Number Value Range
PWM carrier frequency can be changed.
72 *1 PWM frequency selection 2 0 to 15
The setting displayed is in [kHz]. Note that 0 indicates
0.7kHz and 15 indicates 14.5kHz.
0 Soft-PWM is invalid
240 *1 Soft-PWM operation selection 1
1 When Pr. 72 = "0 to 5", soft-PWM is valid.
*1 The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in
Pr. 77 Parameter write selection.

(1) PWM carrier frequency changing (Pr. 72)

⋅ You can change the PWM carrier frequency of the inverter.
⋅ Changing the PWM carrier frequency produces an effect on avoiding the resonance frequency of a mechanical
system or motor or on measures against noise (EMI) generated from the inverter or on leakage current reduction
caused by the PWM switching.
⋅ Carrier frequencies under Real sensorless vector control or vector control are as shown below.
Pr. 72 Setting Carrier Frequencies (kHz)
0 to 5 2
6 to 9 6
10 to 13 10
14, 15 14

(2) Soft-PWM control (Pr. 240)

⋅ Soft-PWM control is a control method that changes the motor noise from a metallic tone into an unoffending
complex tone.

CAUTION
⋅ Decreasing the PWM carrier frequency effect on measures against noises (EMI) generated from the inverter and on leakage
current reduction, but increases motor noise.
⋅ When PWM carrier frequency is set to 1kHz or less (Pr. 72 ≤ 1), fast response current limit may function prior to stall prevention
operation due to increase in ripple currents, resulting in insufficient torque. In such case, set fast response current limit
operation invalid using Pr. 156 Stall prevention operation selection.

♦ Parameters referred to ♦
Pr. 156 Stall prevention operation selection Refer to page 135

4
PARAMETERS

261
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

4.21 Frequency/torque setting by analog input (terminal 1, 2, 4)

Purpose Parameter that must be Set Refer to Page
Function assignment of analog input Terminal 1 and terminal 4 function
Pr. 858, Pr. 868 262
terminal assignment
Selection of voltage/current input
(terminal 1, 2, 4) Perform forward/ Analog input selection Pr. 73, Pr. 267 263
reverse rotation by analog input
Analog auxiliary input and
Adjust the main speed by analog compensation (added Pr. 73, Pr. 242, Pr. 243,
267
auxiliary input compensation and override Pr. 252, Pr. 253
function)
Pr. 74, Pr. 822, Pr. 826,
Noise elimination at the analog input Input filter 269
Pr. 832, Pr. 836, Pr. 849
Pr. 125, Pr. 126, Pr. 241,
Adjustment (calibration) of analog Bias and gain of frequency setting
C2 to C7 (Pr. 902 to Pr. 905) 271
input frequency and voltage (current) voltage (current)
C12 to C15 (Pr. 917 to Pr. 918)
Pr. 241, C16 to C19 (Pr. 919
Adjustment (calibration) of analog Bias and gain of torque setting
to Pr. 920), C38 to C41 (Pr. 277
input torque and voltage (current) voltage (current)
932 to Pr. 933)

4.21.1 Function assignment of analog input terminal (Pr. 858, Pr. 868)
Function assignment of terminal 1 and terminal 4 of analog input can be selected and changed by parameter.
Parameter Name Initial Value Setting Range Description
Number
Select the terminal 4 function.
858 Terminal 4 function assignment 0 0, 1, 4, 9999
(Refer to the following list)
Select the terminal 1 function.
868 Terminal 1 function assignment 0 0 to 6, 9999
(Refer to the following list)

⋅ For the terminal 1 and terminal 4 used for analog input, frequency (speed) command, magnetic flux command,
torque command, etc. can be selected.
Functions change according to the control mode as in the table below.
Terminal 1 function according to control
Pr. 868 V/F Control, Real Sensorless Vector Control, Vector Control Vector Control
Advanced Magnetic
Setting Flux Vector Control Speed control Torque control Position control
0
Frequency setting auxiliary Speed setting auxiliary Speed limit auxiliary ⎯
(Initial value)
1 ⎯ Magnetic flux command * Magnetic flux command * Magnetic flux command
Regenerative torque limit Regenerative torque
2 ⎯ ⎯
(Pr. 810 = 1) limit (Pr. 810 = 1)
Torque command
3 ⎯ ⎯ (Pr. 804 = 0) ⎯
Stall prevention operation
4 level input Torque command
Torque limit (Pr. 810 = 1) Torque limit (Pr. 810 = 1)
(Pr. 804 = 0)
(Pr. 810 = 1)
Forward/reverse rotation
5 ⎯ ⎯ speed limit (Pr. 807 = 2) ⎯
Torque bias input
6 ⎯ (Pr. 840 = 1, 2, 3) * ⎯ ⎯
9999 ⎯ ⎯ ⎯ ⎯
Terminal 4 function according to control
Pr. 858 V/F Control, Real Sensorless Vector Control, Vector Control Vector Control
Advanced Magnetic Flux
Setting Vector Control Speed control Torque control Position control
0 Frequency command Speed command Speed limit
⎯
(Initial value) (AU signal-ON) (AU signal-ON) (AU signal-ON)
1 ⎯ Magnetic flux command * Magnetic flux command * Magnetic flux command
Stall prevention operation
4 level input Torque limit (Pr. 810 = 1) ⎯ Torque limit (Pr. 810 = 1)
(Pr. 810 = 1)
9999 ⎯ ⎯ ⎯ ⎯
⎯ :No function
* This function is valid under vector control.

262
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

REMARKS
⋅ When "1 or 4" is set in both Pr. 868 and Pr. 858, terminal 1 is valid and terminal 4 has no function.
⋅ When "1" (magnetic flux), "4" (stall prevention/torque limit) is set in Pr. 868, functions of terminal 4 become valid independently
of whether the AU terminal is on or off.

♦ Parameters referred to ♦
Advanced magnetic flux vector control Refer to page 131
Real sensorless vector control Refer to page 75
Pr. 804 Torque command source selection Refer to page 108
Pr. 807 Speed limit selection Refer to page 110
Pr. 810 Torque limit input method selection Refer to page 83

4.21.2 Analog input selection (Pr. 73, Pr. 267)

You can select the function that switches between forward rotation and reverse rotation according to the analog
input terminal selection specifications, the override function and the input signal polarity.

Description
Parameter Initial Setting
Name Voltage/current
Number Value Range
input switch
0 to 5, Switch 2 - OFF You can select the input specifications
10 to 15 (initial status) of terminal 2 (0 to 5V, 0 to 10V, 0 to
20mA) and input specifications of
73 Analog input selection 1
6, 7, terminal 1 (0 to ±5V, 0 to ±10V).
Switch 2 - ON Override and reversible operation can
16, 17
be selected.
Switch 1 - ON
0 Terminal 4 input 0 to 20mA
(initial status)
267 Terminal 4 input selection 0
1 Terminal 4 input 0 to 5V
Switch 1 - OFF
2 Terminal 4 input 0 to 10V

(1) Selection of analog input specifications

⋅ For the terminals 2, 4 used for analog input, voltage input (0 to 5V, 0 to 10V) or current input (0 to 20mA) can be
selected.
Change parameters (Pr. 73, Pr. 267) and a voltage/current input switch (switch 1, 2) to change input specifications.
Switch 1:Terminal 4 input
Voltage/current ON: Current input (initial status)
input switch OFF: Voltage input
4 2

Switch 2: Terminal 2 input

ON: Current input
OFF: Voltage input (initial status)

Switch 1
Switch 2

4
⋅ Rated specifications of terminal 2 and 4 change according to the voltage/current input switch setting.
Voltage input: Input resistance 10kΩ ± 1kΩ, Maximum permissible voltage 20VDC
PARAMETERS

Current input: Input resistance 245Ω ± 5Ω, Maximum permissible current 30mA

CAUTION
⋅ Set Pr. 73, Pr. 267, and a voltage/current input switch correctly, then input an analog signal in accordance with the setting.
Incorrect setting as in the table below could cause component damage. Incorrect settings other than below can cause abnormal
operation.
Setting Causing Component Damage
Operation
Switch setting Terminal input
This could cause component damage to the analog signal output circuit of
ON (Current input) Voltage input signal output devices.
(electrical load in the analog signal output circuit of signal output devices increases)
This could cause component damage of the inverter signal input circuit .
OFF (Voltage input) Current input
(output power in the analog signal output circuit of signal output devices increases)

263
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

⋅ Refer to the following table and set Pr. 73 and Pr. 267. ( indicates the main speed setting)
Terminal 4 Input Compensation Input
Pr. 73 Terminal 2 Terminal 1 Pr. 73 Terminal and Polarity
Setting Input Input AU Setting Compensation Reversible
signal Method
0 0 to 10V 0 to ±10V 0
1 1 No
0 to to 5V 0 to ±10V Terminal 1 (Indicates that
(initial value) (initial value)
Added compensation a frequency
2 0 to 10V 0 to ±5V 2
3 0 to 5V 0 to ±5V 3 command
signal of
4 0 to 10V 0 to ±10V 4 Terminal 2 negative
5 0 to 5V 0 to ±5V 5 Override polarity is not
6 0 to 20mA 0 to ±10V 6 accepted.)
7 0 to 20mA 0 to ±5V Off ⎯ 7
10 0 to 10V 0 to ±10V 10 Terminal 1
11 0 to 5V 0 to ±10V 11 Added compensation
12 0 to 10V 0 to ±5V 12
13 0 to 5V 0 to ±5V 13
Yes
14 0 to 10V 0 to ±10V 14 Terminal 2
15 0 to 5V 0 to ±5V 15 Override
16 0 to 20mA 0 to ±10V 16 Terminal 1
17 0 to 20mA 0 to ±5V 17 Added compensation
0 0 to ±10V 0
1 (initial 1 No
0 to ±10V Terminal 1 (Indicates that
value) ⎯ (initial value)
Added compensation a frequency
2 0 to ±5V 2
command
3 0 to ±5V 3
signal of
4 0 to 10V 4 Terminal 2 negative
⎯ According to
5 0 to 5V 5 Override polarity is not
6 0 to ±10V Pr. 267 setting 6
⎯ 0: 4 to 20mA accepted.)
7 0 to ±5V On 7
(initial value)
10 0 to ±10V 1: 0 to 5V 10 Terminal 1
11 0 to ±10V 2: 0 to 10V 11 Added compensation
⎯
12 0 to ±5V 12
13 0 to ±5V 13
Yes
14 0 to 10V 14 Terminal 2
⎯
15 0 to 5V 15 Override
16 0 to ±10V 16 Terminal 1
⎯
17 0 to ±5V 17 Added compensation
⎯ : Invalid
⋅ Set the voltage/current input switch referring to the table below.
Terminal 2 Input Terminal 4 Input
Pr. 73 Setting Switch 2 Pr. 267 Setting Switch 1
Specifications Specifications
Voltage input (0 to 10V) 0, 2, 4, 10, 12, 14 OFF Voltage input (0 to 10V) 2 OFF
Voltage input (0 to 5V) 1 (initial value), 3, 5, 11, 13, 15 OFF Voltage input (0 to 5V) 1 OFF
Current input (0 to 20mA) 6, 7, 16, 17 ON Current input (4 to 20mA) 0 (initial value) ON
indicates an initial value.

CAUTION
⋅ Turn the AU signal on to make terminal 4 valid.
⋅ Match the setting of parameter and switch. A different setting may cause a fault, failure or malfunction.
⋅ The terminal 1 (frequency setting auxiliary input) signal is added to the main speed setting signal of the terminal 2 or 4.
⋅ When an override is selected, the terminal 1 or 4 is used for the main speed setting and the terminal 2 for the override signal
(50% to 150% at 0 to 5V or 0 to 10V). (When the main speed of the terminal 1 or terminal 4 is not input, compensation by the
terminal 2 is invalid.)
⋅ Use Pr. 125 (Pr. 126) (frequency setting gain) to change the maximum output frequency at input of the maximum output frequency
command voltage (current). At this time, the command voltage (current) need not be input.
Also, the acceleration/deceleration time, which is a slope up/down to the acceleration/deceleration reference frequency, is not
affected by the change in Pr. 73 setting.
⋅ When Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment = "4", the value of the terminal 1 or terminal 4 is as
set to the stall prevention operation level. When terminal 1 and terminal 4 are used for frequency setting, set "0" (initial value) in Pr.
858 and Pr. 868.

264
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(2) Perform operation by analog input voltage

Inverter
Forward
STF Voltage/current ⋅ The frequency setting signal inputs 0 to 5VDC (or 0 to 10VDC) to across
rotation
SD
input switch the terminals 2 and 5. The 5V (10V) input is the maximum output
4 2 frequency. The maximum output frequency is reached when 5V (10V) is
0 to 5VDC
10 input.
Frequency
setting
2 ⋅ The power supply 5V (10V) can be input by either using the internal
5 power supply or preparing an external power supply. The internal power
Connection diagram using supply outputs 5VDC across terminals 10-5, or 10V across terminals
terminal 2 (0 to 5VDC) 10E-5.
Inverter Built-in Power Frequency Setting Pr. 73 (terminal 2
Inverter Terminal
Supply Voltage Resolution input voltage)
Forward STF Voltage/current
rotation
input switch 10 5VDC 0.030Hz/60Hz 0 to 5VDC input
SD 4 2
10E 10VDC 0.015Hz/60Hz 0 to 10VDC input
0 to 10VDC
10E
⋅ When inputting 10VDC to the terminal 2, set any of "0, 2, 4, 10, 12, 14"
Frequency 2
setting
in Pr. 73. (The initial value is 0 to 5V)
5
⋅ Setting "1 (0 to 5VDC)" or "2 (0 to 10VDC)" in Pr. 267 and a voltage/
Connection diagram
using terminal 2 (0 to 10VDC) current input switch in the OFF position changes the terminal 4 to the
voltage input specification. When the AU signal turns on, the terminal 4
Forward Inverter input becomes valid.
rotation STF
Terminal 4 AU
Voltage/current
input switch
REMARKS
input selection 4 2 The wiring length of the terminal 10, 2, 5 should be 30m maximum.
SD
DC0 to 5V
10
Frequency 4
setting
5

Connection diagram
using terminal 4 (0 to 5VDC)

4
PARAMETERS

265
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(3) Perform operation by analog input current

Inverter
⋅ When the pressure or temperature is controlled constant by a fan, pump,
Forward STF
rotation Voltage/current etc., automatic operation can be performed by inputting the output signal
AU input switch
4 2
0 to 20mADC of the adjuster to across the terminals 4-5.
SD ⋅ The AU signal must be turned on to use the terminal 4.
4 to 20mADC
Frequency Current 4
input
setting equipment 5

Connection diagram using

terminal 4 (4 to 20mADC)
⋅ Setting any of "6, 7, 16, 17" in Pr. 73 and a voltage/current input switch in
Inverter
the ON position changes the terminal 2 to the current input specification.
Forward STF Voltage/current At this time, the AU signal need not be turned on.
rotation input switch
SD 4 2

4 to 20mADC
Current 2
Frequency input
setting equipment 5

Connection diagram using

terminal 2 (4 to 20mADC)

(4) Perform forward/reverse rotation by analog input

Reverse Set frequency Forward (polarity reversible operation)
(Hz)
rotation rotation
60
⋅ Setting any of "10 to 17" in Pr. 73 enables polarity reversible operation.
⋅ Providing ± input (0 to ±5V or 0 to ±10V) to the terminal 1 enables
Reversible
forward/reverse rotation operation according to the polarity.
Not reversible +5
(+10)
-5 0 Terminal 1 input (V)
(-10)
Compensation input characteristic
when STF is on
♦ Parameters referred to ♦
Pr. 22 Stall prevention operation level Refer to page 135
Pr. 125 Terminal 2 frequency setting gain frequency, Pr. 126 Terminal 4 frequency setting gain frequency Refer to page 271
Pr. 252, Pr. 253 Override bias/gain Refer to page 267
Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment Refer to page 262

266
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

4.21.3 Analog input compensation (Pr. 73, Pr. 242, Pr. 243, Pr. 252, Pr. 253)

A fixed ratio of analog compensation (override) can be made by the added compensation or terminal 2 as an
auxiliary input for multi-speed operation or the speed setting signal (main speed) of the terminal 2 or terminal 4.

Parameter Setting
Name Initial Value Description
Number Range
0 to 3, 6, 7, 10
Added compensation
73 Analog input selection 1 to 13, 16, 17
4, 5, 14, 15 Override compensation
Terminal 1 added compensation Set the ratio of added compensation amount
242 100% 0 to 100%
amount (terminal 2) when terminal 2 is the main speed.
Terminal 1 added compensation Set the ratio of added compensation amount
243 75% 0 to 100%
amount (terminal 4) when terminal 4 is the main speed.
Set the bias side compensation value of
252 Override bias 50% 0 to 200%
override function.
Set the gain side compensation value of
253 Override gain 150% 0 to 200%
override function.

(1) Added compensation (Pr. 242, Pr. 243)

⋅ The compensation signal can be input for the main speed setting for
Forward Inverter synchronous/continuous speed control operation, etc.
rotation ⋅ Setting any of "0 to 3, 6, 7, 10 to 13, 16, 17" in Pr. 73 adds the voltage across
STF
terminals 1 and 5 to the voltage signal across terminals 2 and 5.
SD
⋅ If the result of addition is negative, it is regarded as 0 at the Pr. 73 setting of any
10
of "0 to 3, 6, 7", or reverse rotation operation (polarity reversible operation) is
2
performed when the STF signal turns on at the Pr. 73 setting of any of "10 to 13,
5
16, 17".
Auxiliary input 1 ⋅ The compensation input of the terminal 1 can also be added to the multi-speed
0 to 10V( 5V)
setting or terminal 4 (initial value 4 to 20mA).
Added compensation ⋅ The added compensation for terminal 2 can be adjusted by Pr. 242, and the
connection example compensation for terminal 4 by Pr. 243.
Analog command value using terminal 2
Pr. 242
= Terminal 2 input + Terminal 1 input ×
100(%)
Analog command value using terminal 4
Pr. 243
= Terminal 4 input + Terminal 1 input ×
100(%)

Output frequency Output frequency

When voltage across When voltage across
terminals 2-5 is 2.5V terminals 2-5 is 2.5V
(5V) (5V)

When voltage
When voltage
across terminals
4
across terminals
2-5 is 0V
2-5 is 0V

-5V -2.5V 0 +2.5V +5V Terminal 1 -5V -2.5V 0 +2.5V +5V Terminal 1
PARAMETERS

(-10V) (-5V) (+5V) (+10V) (-10V) (-5V) (+5V) (+10V)

Forward rotation Reverse rotation Forward rotation

STF Signal STF Signal
ON ON

Forward rotation Reverse rotation Forward rotation

STF Signal STF Signal
ON ON
(a) When Pr. 73 setting is 0 to 5 (b) When Pr. 73 setting is 10 to 15
Auxiliary input characteristics

CAUTION
⋅ When the Pr. 73 setting was changed, check the voltage/current input switch setting. Different setting may cause a fault, failure
or malfunction. (Refer to page 263 for setting.)

267
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(2) Override function (Pr. 252, Pr. 253)

⋅ Use the override function to change the main speed at a fixed ratio.
⋅ Set any of "4, 5, 14, 15" in Pr. 73 to select an override.
Forward Inverter ⋅ When an override is selected, the terminal 1 or terminal 4 is used for the main speed
rotation setting and the terminal 2 for the override signal. (When the main speed of the
STF
SD terminal 1 or terminal 4 is not input, compensation made by the terminal 2 becomes
10 invalid.)
Override
2 ⋅ Using Pr. 252 and Pr. 253, set the override range.
setting
5 ⋅ How to find the set frequency for override
Main (+) 1 Compensation amount (%)
speed (-) Set frequency (Hz) = Main speed set frequency (Hz) × 100(%)
Override connection diagram
Main speed set frequency (Hz): Terminal 1, 4 input, multi-speed setting
Compensation amount (%): Terminal 2 input
Example)When Pr. 73 = "5"
The set frequency changes as shown below according to the
200 terminal 1 (main speed) and terminal 2 (auxiliary) inputs.
Override value (%)

150
90 Terminal 2 5VDC
Pr.252 input(150%)
Set frequency (Hz)

Initial value
Pr.253 100 (50% to 150%) Terminal 2 2.5VDC
60
input(100%)
45
50
30 Terminal 2 0V
input(50%)
15
0
0V 2.5V 5V 0
(5V) (10V) 0 2.5 5
Voltage across terminals 2-5 Terminal 1 input voltage (V)

CAUTION
⋅ When the Pr. 73 setting was changed, check the voltage/current input switch setting. Different setting may cause a fault, failure
or malfunction. (Refer to page 263 for setting.)

REMARKS
⋅ The AU signal must be turned on to use the terminal 4.
⋅ When inputting compensation to multi-speed operation or remote setting, set "1" (compensation made) in Pr. 28 Multi-speed input
compensation selection. (Initial value is "0")

♦ Parameters referred to ♦
Pr. 28 Multi-speed input compensation selection Refer to page 152
Pr. 73 Analog input selection Refer to page 263

268
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

4.21.4 Response level of analog input and noise elimination

(Pr. 74, Pr. 822, Pr. 826, Pr. 832, Pr. 836, Pr. 849)

Response level and stability of frequency reference command and torque reference command by analog input
(terminal 1, 2, 4) signal can be adjusted.

Parameter Initial Setting

Name Description
Number Value Range
The primary delay filter time constant for the analog input
74 Input filter time constant 1 0 to 8
can be set. A larger setting results in slower response.
Set the time constant of the primary delay filter relative to
0 to 5s
822 Speed setting filter 1 9999 the external speed command (analog input command).
9999 Pr. 74 is used
Set the time constant of the primary delay filter relative to
0 to 5s
826 Torque setting filter 1 9999 the external torque command (analog input command).
9999 Pr. 74 is used
832 Speed setting filter 2 9999 0 to 5s, 9999 Second function of Pr. 822 (valid when RT terminal is on)
836 Torque setting filter 2 9999 0 to 5s, 9999 Second function of Pr. 826 (valid when RT terminal is on)
This function provides speed command by analog input
Analog input offset
849 100% 0 to 200% (terminal 2) with offset. Motor rotation due to noise, etc.
adjustment
by analog input can be avoided at zero speed command.

(1) Block diagram

Pr. 74
Pr. 822 = 9999
Speed command
RT-OFF
Pr. 822
Terminal 1 (2, 4 ) input

RT-ON Pr. 822 9999

Pr. 74
Pr. 826 = 9999
Torque command

Pr. 826

Pr. 826 9999

Pr. 832 = 9999

Pr. 832

Pr. 832 9999

Pr. 836 = 9999 4

Pr. 836
PARAMETERS

Pr. 836 9999

269
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(2) Time constant of analog input (Pr. 74)

⋅ Effective for eliminating noise in the frequency setting circuit.
⋅ Increase the filter time constant if steady operation cannot be performed due to noise.
A larger setting results in slower response (The time constant can be set between approximately 5ms to 1s with the
setting of 0 to 8).

(3) Time constant of analog speed command input (Pr. 822, Pr. 832)
⋅ Set the time constant of the primary delay filter relative to the external torque command (analog input command)
using Pr. 822 Speed setting filter 1.
Set a large time constant when you want to delay the tracking of the speed command, when the analog input
voltage fluctuates, etc.
⋅ When you want to change time constant when switching two motors with one inverter, use the Pr. 832 Speed setting
filter 2.
⋅ Pr. 832 Speed setting filter 2 is valid when the RT signal turns ON.

(4) Time constant of analog torque command input (Pr. 826, Pr. 836)
⋅ Set the time constant of the primary delay filter relative to the external torque command (analog input command)
using Pr. 826 Torque setting filter 1.
Set a large time constant value when you want to delay the tracking of the torque command, when the analog input
voltage fluctuates, etc.
⋅ When you want to change time constant when switching two motors with one inverter, etc., use Pr. 836 Torque setting
filter 2.
⋅ Pr. 836 Torque setting filter 2 is valid when the RT signal turns ON.
(5) Offset adjustment of analog speed command
Frequency
command
input (Pr. 849)
Slope determined ⋅ When speed command by analog input is set, create the
according to Pr.125 range where the motor remains stop to prevent malfunction
and C2 to C4
at very low speed.
Slope does not
change.
⋅ On the assumption that the Pr. 849 setting 100% as 0, the
offset voltage is offset as follows:
100% < Pr. 849 ........ positive side
0% 100% Speed setting 100% > Pr. 849 ........negative side
(10V or 5V) signal The offset voltage is found by the following formula.
0% 100% 200% Pr.849 setting Voltage at 100% Pr. 849 − 100
Offset voltage = × [V]
(5V or 10V *) 100
* According to the Pr. 73 setting

♦ Parameters referred to ♦
Pr. 73 Analog input selection Refer to page 263
Pr. 125, C2 to C4 (Bias and gain of the terminal 2 frequency setting) Refer to page 271

270
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

4.21.5 Bias and gain of frequency setting voltage (current)

(Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905), C12(Pr. 917) to C15(Pr. 918))
You can set the magnitude (slope) of the output frequency as desired in relation to the frequency setting signal (0
to 5V, 0 to 10V or 0 to 20mADC).
Set Pr. 73, Pr. 267 and voltage/current input switch to switch between 0 to 5VDC, 0 to 10VDC and 4 to 20mADC.
(Refer to page 263)

Frequency setting bias/gain parameter

Parameter Setting
Name Initial Value Description
Number Range
Terminal 2 frequency setting gain Set the frequency of terminal 2 input gain
125 60Hz 0 to 400Hz
frequency (maximum).
Terminal 4 frequency setting gain Set the frequency of terminal 4 input gain
126 60Hz 0 to 400Hz
frequency (maximum).
Analog input display unit 0 Displayed in % Select the unit of
241 *2 0
switchover 1 Displayed in V/mA analog input display.
Terminal 2 frequency setting bias Set the frequency on the bias side of
C2(902) *1 0Hz 0 to 400Hz
frequency terminal 2 input.
Set the converted % of the bias side
C3(902) *1 Terminal 2 frequency setting bias 0% 0 to 300%
voltage (current) of terminal 2 input.
Set the converted % of the gain side
C4(903) *1 Terminal 2 frequency setting gain 100% 0 to 300%
voltage (current) of terminal 2 input.
Terminal 4 frequency setting bias Set the frequency on the bias side of
C5(904) *1 0Hz 0 to 400Hz
frequency terminal 4 input.
Set the converted % of the bias side
C6(904) *1 Terminal 4 frequency setting bias 20% 0 to 300%
current (voltage) of terminal 4 input.
Set the converted % of the gain side
C7(905) *1 Terminal 4 frequency setting gain 100% 0 to 300%
current (voltage) of terminal 4 input.

Speed limit bias/gain parameter

Parameter Setting
Number Name Initial Value Range Description
Set the frequency (speed) on the bias side
C12(917) *1 Terminal 1 bias frequency (speed) 0Hz 0 to 400Hz
of terminal 1 input.
Set the converted % of the bias side
C13(917) *1 Terminal 1 bias (speed) 0% 0 to 300%
voltage of terminal 1 input.
Set the frequency (speed) of terminal 1
C14(918) *1 Terminal 1 gain frequency (speed) 60Hz 0 to 400Hz
input gain (maximum).
Set the converted % of the gain side
C15(918) *1 Terminal 1 gain (speed) 100% 0 to 300%
voltage of terminal 1 input.
*1 The parameter number in parentheses is the one for use with the parameter unit (FR-PU04/FR-PU07).
*2 The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write selection.

4
PARAMETERS

271
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(1) The relationship between analog input terminal and calibration parameter

Terminal 1 functional calibration parameter

Pr. 868 Calibration Parameters
Terminal Function
Setting Bias setting Gain setting
C2(Pr. 902) Terminal 2 frequency setting bias frequency Pr. 125 Terminal 2 frequency setting gain frequency
0 C3(Pr. 902) Terminal 2 frequency setting bias C4(Pr. 903) Terminal 2 frequency setting gain
(initial Frequency (speed) setting
auxiliary C5(Pr. 904) Terminal 4 frequency setting bias frequency Pr. 126 Terminal 4 frequency setting gain frequency
value)
C6(Pr. 904) Terminal 4 frequency setting bias C7(Pr. 905) Terminal 4 frequency setting gain
C16(Pr.919) Terminal 1bias command (torque/magnetic flux) C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
1 Magnetic flux command
C17(Pr.919) Terminal 1bias (torque/magnetic flux) C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
2 Regenerative torque limit
3 Torque command C16(Pr. 919) Terminal 1 bias command (torque/magnetic flux) C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
Stall prevention operation level */ C17(Pr. 919) Terminal 1 bias (torque/magnetic flux) C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
4
torque limit/torque command
Forward/reverse rotation speed C12(Pr. 917) Terminal 1 bias frequency (speed) C14(Pr. 918) Terminal 1 gain frequency (speed)
5
limit C13(Pr. 917) Terminal 1 bias (speed) C15(Pr. 918) Terminal 1 gain (speed)
C16(Pr. 919) Terminal 1 bias command (torque/magnetic flux) C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
6 Torque bias input
C17(Pr. 919) Terminal 1 bias (torque/magnetic flux) C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
9999 ⎯ ⎯ ⎯

Terminal 4 functional calibration parameter

Pr. 858 Calibration Parameters
Terminal Function
Setting Bias setting Gain setting
0 C5(Pr. 904) Terminal 4 frequency setting bias frequency Pr. 126 Terminal 4 frequency setting gain frequency
Frequency command/speed
(initial command
value) C6(Pr. 904) Terminal 4 frequency setting bias C7(Pr. 905) Terminal 4 frequency setting gain
C38(Pr.932) Terminal 4 bias command (torque/magnetic flux) C40(Pr.933) Terminal 4 gain command (torque/magnetic flux)
1 Magnetic flux command
C39(Pr.932) Terminal 4 bias (torque/magnetic flux) C41(Pr.933) Terminal 4 gain (torque/magnetic flux)
Stall prevention operation level */ C38(Pr. 932) Terminal 4 bias command (torque/magnetic flux) C40(Pr. 933) Terminal 4 gain command (torque/magnetic flux)
4
torque limit C39(Pr. 932) Terminal 4 bias (torque/magnetic flux) C41(Pr. 933) Terminal 4 gain (torque/magnetic flux)
9999 ⎯ ⎯ ⎯
⎯ : No function
* Use Pr. 148 Stall prevention level at 0V input and Pr. 149 Stall prevention level at 10V input to adjust bias/gain of stall prevention operation level

272
 Frequency/torque setting by analog
input (terminal 1, 2, 4)
.

(2) Change the frequency at maximum

Initial value
analog input. (Pr. 125, Pr. 126)
Output frequency

60Hz
⋅ Set a value in Pr. 125 (Pr. 126) when changing only
(Hz)

the frequency setting (gain) of the maximum analog

input power (current). (C2 (Pr. 902) to C7 (Pr. 905)
setting need not be changed)
Gain
Pr. 125 (3) Analog input bias/gain calibration (C2(Pr.
Bias C14 (Pr. 918) 902) to C7(Pr. 905), C12(Pr. 917) to C15(Pr.
C2 (Pr. 902)
C12 (Pr. 917)
918))
0 100% ⋅ The "bias" and "gain" functions are used to adjust the
0 Frequency setting signal 5V relationship between the input signal entered from
0 10V
outside the inverter to set the output frequency, e.g. 0
C3 (Pr. 902) C4 (Pr. 903)
C13 (Pr. 917) C15 (Pr. 918) to 5V, 0 to 10V or 4 to 20mADC, and the output
frequency.
⋅ Set the bias frequency of the terminal 2 input using
C2 (Pr. 902). (factory-set to the frequency at 0V)
⋅ Using Pr. 125, set the output frequency relative to the
frequency command voltage (current) set in Pr. 73
Analog input selection.
⋅ Set the bias frequency of the terminal 1 input using
Initial value C12 (Pr. 917). (factory-set to the frequency at 0V)
Output frequency

60Hz ⋅ Set the gain frequency of the terminal 1 input using

C14 (Pr. 918). (factory-set to the frequency at 10V)
⋅ Set the bias frequency of the terminal 4 input using
(Hz)

C5 (Pr. 904). (factory-set to the frequency at 4mA)

⋅ Using Pr. 126, set the output frequency relative to
Gain Pr. 126 20mA of the frequency command current (4 to
Bias 20mA).
C5 ⋅ There are three methods to adjust the frequency
(Pr. 904) setting voltage (current) bias/gain.
0 20 100%
0 4 Frequency setting signal 20mA (a) Method to adjust any point by application of
C6 (Pr. 904) C7 (Pr. 905) voltage (current) to across the terminals 2 and 5
(4 and 5). page 274
(b) Method to adjust any point without application of a
voltage (current) to across terminals 2 and 5 (4
and 5). page 275
(c) Adjusting only the frequency without adjusting the
voltage (current). page 276
CAUTION
⋅ When the terminal 2 is calibrated to change the inclination of the set frequency, the setting of the terminal 1 is also changed.
⋅ When a voltage is input to the terminal 1 to make calibration, (terminal 2 (4) analog value + terminal 1 analog value) is the analog
calibration value.
⋅ When the voltage/current input signal was changed using Pr. 73, Pr. 267 and voltage/current input switch, be sure to make
calibration.

(4) Analog input display unit changing (Pr. 241)

⋅ You can change the analog input display unit (%/V/mA) for analog input bias/gain calibration.
⋅ Depending on the terminal input specification set to Pr. 73, Pr. 267 and voltage/current input switch, the display units of
C3 (Pr. 902), C4 (Pr. 903), C6 (Pr. 904) C7 (Pr. 905) change as shown below. 4
Analog Command
(terminal 2, 4)
PARAMETERS

Pr. 241 = 0 (initial value) Pr. 241 = 1

(according to Pr. 73, Pr. 267,
voltage/current input switch)
0 to 5V input 0 to 5V → displayed in 0 to 100% (0.1%). 0 to 100% → displayed in 0 to 5V (0.01V).
0 to 10V input 0 to 10V → displayed in 0 to 100% (0.1%). 0 to 100% → displayed in 0 to 10V (0.01V).
0 to 20mA input 0 to 20mA → displayed in 0 to 100% (0.1%). 0 to 100% → displayed in 0 to 20mA (0.01mA).

REMARKS
⋅ Analog input display is not displayed correctly if voltage is applied to terminal 1 when terminal 1 input specifications (0 to ±5V, 0
to ±10V) and main speed (terminal 2, terminal 4 input) specifications (0 to 5V, 0 to 10V, 0 to 20mA) differ. (For example, 5V
(100%) is analog displayed when 0V and 10V are applied to terminal 2 and terminal 1 respectively in the initial status.
In this case, set "0" (initial value is 0% display) in Pr. 241 to use.

273
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(5) Frequency setting voltage (current) bias/gain adjustment method

(a)Method to adjust any point by application of voltage (current) to across the terminals 2 and 5 (4 and 5).

Operation Display
1. Confirm the RUN indicator and operation mode
indicator
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Using )
The parameter
2.Press to choose the parameter setting mode. number read
previously appears.

3.Turn until appears.

C0 to C41
4. Press to display . setting
is enabled.

5. Turn until ( )
appears. Set to C4 Terminal 2 frequency
setting gain. Terminal 2 input Terminal 4 input

Analog voltage (current)

6.Press to display the analog voltage (current) value (%) across terminals 2 and 5
value (%). (across terminals 4 and 5)

7. Apply a 5V (20mA) voltage (current).

(Turn the external potentiometer connected *
across terminals 2 and 5 (across terminals 4
and 5) to maximum (any position).) * The value is nearly 100 (%) in the maximum
position of the potentiometer.
CAUTION
After performing the operation in step 6, do not touch until
completion of calibration.
* Terminal 2 input Terminal 4 input
8.Press to set.

Flicker...Parameter setting complete!!

(Adjustment completed)
* The value is nearly 100 (%) in the maximum
position of the potentiometer.

Turn to read another parameter.

Press to return to the indication (step 4).
Press twice to show the next parameter ( ).

REMARKS
⋅ If the frequency meter (indicator) connected to across terminals FM and SD does not indicate exactly 60Hz, set calibration
parameter C0 FM terminal calibration. (Refer to page 240)
⋅ If the gain and bias of frequency setting voltage (current) are too close, an error ( ) may be displayed at setting.

274
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(b) Method to adjust any point without application of a voltage (current) to across terminals 2 and 5 (4 and 5).
(To change from 4V (80%) to 5V (100%))

Operation Display
1. Confirm the RUN indicator and operation mode
indicator
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Using )
The parameter
2. Press to choose the parameter number read
setting mode. previously appears.

3. Turn until appears.

C0 to C41
4. Press to display . setting
is enabled.

5. Turn until ( )
appears. Set to C4 Terminal 2 frequency
setting gain. Terminal 2 input Terminal 4 input

Analog voltage (current)

6. Press to display the analog voltage value (%) across terminals 2 and 5
(current) value (%). (across terminals 4 and 5)

7. Turn to set the gain voltage (%). The gain frequency is reached
"0V (0mA) equals to 0%, 5V (10V, 20mA) to 100%" when the analog
voltage (current) value across
terminals 2 and 5 (across terminals
REMARKS 4 and 5) is 100%.
The current setting at the instant of turning
is displayed.

Terminal 2 input Terminal 4 input

8. Press to set.

Flicker...Parameter setting complete!!

(Adjustment completed)

Turn to read another parameter.

Press to return to the indication (step 4).
Press twice to show the next parameter ( ).

REMARKS

By pressing after step 6, you can confirm the current frequency setting bias/gain setting. 4
It cannot be confirmed after execution of step 7.
PARAMETERS

275
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(c) Method to adjust only the frequency without adjustment of a gain voltage (current).
(When changing the gain frequency from 60Hz to 50Hz)

Operation Display
1. Pr. 125) or or
(Pr. 126) appears. Terminal 2 input Terminal 4 input

2. Press to show the present set value.

(60.00Hz)

3. Turn to change the set value to

" ". (50.00Hz)
Terminal 2 input Terminal 4 input

4. Press to set.
Flicker...Parameter setting complete!!
5. Mode/monitor check
Press twice to choose the
monitor/frequency monitor.

6. Apply a voltage across the inverter

terminals 2 and 5 (across 4 and 5) and
turn ON the start command (STF, STR).
Operation starts at 50Hz.

REMARKS
⋅ Changing C4 (Pr. 903) or C7 (Pr. 905) (gain adjustment) setting will not change the Pr. 20 setting. The input of terminal 1
(frequency setting auxiliary input) is added to the frequency setting signal.
⋅ For the operating procedure using the parameter unit (FR-PU04/FR-PU07), refer to the FR-PU04/FR-PU07 instruction manual.
⋅ When setting the value to 120Hz or higher, it is necessary to set Pr. 18 High speed maximum frequency to 120Hz or higher. (Refer to
page 140)
⋅ Make the bias frequency setting using calibration parameter C2 (Pr. 902) or C5 (Pr. 904). (Refer to page 273)

CAUTION
Be cautious when setting any value other than "0" as the bias frequency at 0V (0mA). Even if a speed command
is not given, merely turning on the start signal will start the motor at the preset frequency.

♦ Parameters referred to ♦
Pr. 20 Acceleration/deceleration reference frequency Refer to page 155
Pr. 73 Analog input selection, Pr. 267 Terminal 4 input selection Refer to page 263
Pr. 79 Operation mode selection Refer to page 290

276
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

4.21.6 Bias and gain of torque (magnetic flux) setting voltage (current)
(Pr. 241, C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) to C41 (Pr. 933)) Sensorless Vector

You can set the magnitude (slope) of the torque as desired in relation to the torque setting signal (0 to 5VDC, 0 to
10V or 4 to 20mA).
Use Pr. 73 and Pr. 267 to switch from among 0 to 5V, 0 to 10V, 4 to 20mADC. (Refer to page 263)

Parameter Initial Setting

Name Description
Number Value Range
Analog input display unit 0 Displayed in % Select the unit of analog input
241 *2 0
switchover 1 Displayed in V/mA display.
Terminal 1 bias command (torque/ Set the torque (magnetic flux) on the bias side of
C16(919) *1 0% 0 to 400%
magnetic flux) terminal 1 input.
Terminal 1 bias (torque/magnetic Set the converted % of the bias side voltage
C17(919) *1 0% 0 to 300%
flux) (current) of terminal1 input.
Terminal 1 gain command (torque/ Set the torque (magnetic flux) of the terminal 1 input
C18(920) *1 150% 0 to 400%
magnetic flux) gain (maximum).
Terminal 1 gain (torque/magnetic Set the converted % of the gain side voltage of
C19(920) *1 100% 0 to 300%
flux) terminal1 input.
Terminal 4 bias command (torque/ Set the torque (magnetic flux) on the bias side of
C38(932) *1 0% 0 to 400%
magnetic flux) terminal 4 input.
Terminal 4 bias (torque/magnetic Set the converted % of the bias side current
C39(932) *1 20% 0 to 300%
flux) (voltage) of terminal 4 input.
Terminal 4 gain command (torque/ Set the torque (magnetic flux) of the terminal 4 input
C40(933) *1 150% 0 to 400%
magnetic flux) gain (maximum).
Terminal 4 gain (torque/magnetic Set the converted % of the gain side current
C41(933) *1 100% 0 to 300%
flux) (voltage) of terminal 4 input.
*1 The parameter number in parentheses is the one for use with the parameter unit (FR-PU04/FR-PU07).
*2 The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter
write selection .

(1) Change functions of analog input terminal

In the initial setting status, terminal 1 and terminal 4 used for analog input are respectively set to speed setting
auxiliary (speed limit auxiliary) and speed command (speed limit). To use an analog input terminal as torque
command, torque limit input or magnetic flux command input, set Pr. 868 Terminal 1 function assignment and Pr. 858
Terminal 4 function assignment to change functions. (Refer to page 262)
(2) The relationship between analog input terminal and calibration parameter
Terminal 1 functional calibration parameter
Pr. 868 Terminal Calibration Parameters
Setting Function Bias setting Gain setting
C2(Pr. 902) Terminal 2 frequency setting bias frequency Pr. 125 Terminal 2 frequency setting gain frequency
0 Frequency (speed) C3(Pr. 902) Terminal 2 frequency setting bias C4(Pr. 903) Terminal 2 frequency setting gain
(initial
value) setting auxiliary C5(Pr. 904) Terminal 4 frequency setting bias frequency Pr. 126 Terminal 4 frequency setting gain frequency
C6(Pr. 904) Terminal 4 frequency setting bias C7(Pr. 905) Terminal 4 frequency setting gain
Magnetic flux C16(Pr. 919) Terminal 1bias command (torque/magnetic flux) C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
1
command C17(Pr. 919) Terminal 1bias (torque/magnetic flux) C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
Regenerative
2 torque limit
3 Torque command C16(Pr. 919) Terminal 1 bias command (torque/magnetic flux) C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux) 4
Stall prevention C17(Pr. 919) Terminal 1 bias (torque/magnetic flux) C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
operation level */
4
torque limit/torque
PARAMETERS

command
Forward/reverse C12(Pr. 917) Terminal 1 bias frequency (speed) C14(Pr. 918) Terminal 1 gain frequency (speed)
5
rotation speed limit C13(Pr. 917) Terminal 1 bias (speed) C15(Pr. 918) Terminal 1 gain (speed)
C16(Pr. 919) Terminal 1 bias command (torque/magnetic flux) C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
6 Torque bias input
C17(Pr. 919) Terminal 1 bias (torque/magnetic flux) C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
9999 ⎯ ⎯ ⎯
* Use Pr. 148 Stall prevention level at 0V input and Pr. 149 Stall prevention level at 10V input to adjust bias/gain of stall prevention operation level.

277
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

Terminal 4 functional calibration parameter

Pr. 858 Terminal Calibration Parameters
Setting Function Bias setting Gain setting
0 Frequency (speed) C5(Pr. 904) Terminal 4 frequency setting bias frequency Pr. 126 Terminal 4 frequency setting gain frequency
(initial command/speed
value) limit C6(Pr. 904) Terminal 4 frequency setting bias C7(Pr. 905) Terminal 4 frequency setting gain
Magnetic flux C38(Pr. 932) Terminal 4 bias command (torque/magnetic flux) C40(Pr. 933) Terminal 4 gain command (torque/magnetic flux)
1
command C39(Pr. 932) Terminal 4 bias (torque/magnetic flux) C41(Pr. 933) Terminal 4 gain (torque/magnetic flux)
Stall prevention C38(Pr. 932) Terminal 4 bias command (torque/magnetic flux) C40(Pr. 933) Terminal 4 gain command (torque/magnetic flux)
4 operation level */
torque limit C39(Pr. 932) Terminal 4 bias (torque/magnetic flux) C41(Pr. 933) Terminal 4 gain (torque/magnetic flux)
9999 ⎯ ⎯ ⎯
⎯ : No function
* Use Pr. 148 Stall prevention level at 0V input and Pr. 149 Stall prevention level at 10V input to adjust bias/gain of stall prevention operation level.

(3) Change the torque at maximum analog

400 input (C18(Pr. 920), C40(Pr. 933))
Torque(%)

· Set C18(Pr. 920), C40(Pr. 933) when changing only

150
Gain torque setting (gain) of the maximum analog input
(-5V) C18(Pr.920) voltage (current).
(-10V) Bias Initial value
-100% C16(Pr.919) (4) Calibration of analog input bias and gain
0 100% (C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) to
0 Torque setting signal 5V
0 10V C41 (Pr. 933))
C17(Pr.919) C19(Pr.920)
-150 · The "bias" and "gain" functions are used to adjust the
relationship between the input signal entered from
Calibration example of terminal 1 outside the inverter to set the torque command and
torque limit, e.g. 0 to 5V, 0 to 10V or 4 to 20mADC, and
the torque.
· Set the bias torque of terminal 1 input in C16 (Pr. 919) .
(It is factory-set to the torque at 0V)
· Set the torque in C18 (Pr. 920) for the torque command
voltage set with Pr. 73 Analog input selection.
400 (initial value is 10V)
· Set the bias torque of terminal 4 input in C38 (Pr. 932) .
Torque(%)

(It is factory-set to the torque at 4mA)

150 Gain · Set the torque in C40 (Pr. 933) for 20mA of the torque
C40 command current (4 to 20mA).
(Pr.933)
· There are the following three methods to adjust the
Bias Initial value
torque setting voltage (current) bias and gain.
C38
a) Method to adjust any point without application of
(Pr.932)
0 20 100% voltage (current) to across terminals 1 and 5 (4 and
0 4 20mA 5)
Torque setting signal
C39(Pr.932) C41(Pr.933)
page 279
Calibration example of terminal 4 b) Method to adjust any point without application of
voltage (current) to across terminals 1 and 5 (4 and
5)
page 280
c) Method to adjust torque only without adjustment of
voltage (current) page 281
CAUTION
· When voltage/current input specifications were switched using Pr. 73 and Pr. 267 , perform calibration without fail.

(5) Analog input display unit changing (Pr. 241)

· You can change the analog input display unit (%/V/mA) for analog input bias/gain calibration.
· Display unit of C17 (Pr. 919), C19 (Pr. 920), C39 (Pr. 932), C41 (Pr. 933) changes as follows according to the terminal
input specifications set in Pr. 73 and Pr. 267 .
Analog Command (terminal 1,4)
Pr. 241 = 0 (initial value) Pr. 241 = 1
(according to Pr. 73, Pr. 267 )
0 to 5V input 0 to 5V → displayed in 0 to 100% (0.1%) 0 to 100% → displayed in 0 to 5V (0.01V)
0 to 10V input 0 to 10V → displayed in 0 to 100% (0.1%) 0 to 100% → displayed in 0 to 10V (0.01V)
0 to 20mA input 0 to 20mA → displayed in 0 to 100% (0.1%) 0 to 100% → displayed in 0 to 20mA (0.01mA)

278
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

(6) Adjustment method of torque setting voltage (current) bias and gain
a) Method to adjust any point without application of a voltage (current) to across terminals 1 and 5 (4 and 5)

Operation Display
1. Confirm the RUN indicator and operation mode
indicator
The inverter must be at a stop.
The inverter must be in the PU operation
mode.(Using )
The parameter
2. Press to choose the parameter setting number read
mode. previously appears.

3. Turn until appears.

C0 to C41
4. Press to display . setting
is enabled.

5. Turn until ( ) appears.

Set to C19 Terminal 1 gain (torque).
Terminal 1 input Terminal 4 input

6. Press to display the analog voltage Analog voltage (current)

value (%) across terminals 1 and 5
(current) value (%).
(across terminals 4 and 5)
7. Apply a 10V (20mA) voltage (current). The value is nearly 100 (%) in
(Turn the external potentiometer connected the maximum position of the
across terminals 1 and 5 (across terminals 4 potentiometer.
and 5) to maximum (any position).)
CAUTION
After performing the operation in step 6, do not touch until
completion of calibration.
Terminal 1 input Terminal 4 input
8. Press to set.

Flicker...Parameter setting complete!!

(Adjustment completed)

Turn to read another parameter.

Press to return to the indication (step 4).
Press twice to show the next parameter ( ).

REMARKS
· An error at writing ( ) may appear if torque setting value of gain and bias are too close.

4
PARAMETERS

279
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

b) Method to adjust any point without application of a voltage (current) to across terminals 1 and 5 (4 and 5)
(To change from 8V (80%) to 10V (100%))

Operation Display
1. Confirm the RUN indicator and operation mode
indicator
The inverter must be at a stop.
The inverter must be in the PU operation
mode. (Using )
The parameter
2. Press to choose the parameter number read
setting mode. previously appears.

3. Turn until appears.

C0 to C41
4. Press to display . setting
is enabled.

5. Turn until ( )
appears. Set to C19 Terminal 1 gain (torque).
Terminal 1 input Terminal 4 input

6. Press to display the analog voltage Analog voltage (current)

value (%) across terminals 1 and 5
(current) value (%).
(across terminals 4 and 5)

7. Turn to set the gain voltage (%).

The gain torque is
"0V (0mA) equals to 0%, 10V (5V, reached when the analog
20mA) to 100%" voltage (current) value across
terminals 1 and 5 (across terminals
REMARKS 4 and 5) is 100%.
The current setting at the instant of turning
is displayed.
Terminal 1 input Terminal 4 input
8. Press to set.

Flicker...Parameter setting complete!!

(Adjustment completed)

Turn to read another parameter.

Press to return to the indication (step 4).
Press twice to show the next parameter ( ).

REMARKS

You can check the current torque setting bias/gain setting by pressing after step 6.
You can not check after performing operation in step 7.

280
 Frequency/torque setting by analog
input (terminal 1, 2, 4)

c) Method to adjust torque only without adjustment of gain voltage (current)

(when changing gain torque from 150% to 130%)

Operation Display
1. Pr.920) or or

(Pr.933) appears. Terminal 1 input Terminal 4 input

2. Press to show the currently set value.

(150%)

3. Turn o change the set value to

" " (130.0%)
Terminal 1 input Terminal 4 input

4. Press to set.
Flicker...Parameter setting complete!!
5. Mode/monitor check
Press twice to choose the
monitor/frequency monitor.

6. Apply a voltage across the inverter

terminals 1 and 5 (across 4 and 5) and
turn ON the start command (STF, STR).
Operation starts with 130% torque.

REMARKS
· For operation from the parameter unit (FR-PU04/FR-PU07), refer to the instruction manual of the FR-PU04/FR-PU07.
· Set bias torque setting using calibration parameter C16 (Pr. 919) or C38 (Pr. 932). (Refer to page 278 )

CAUTION
Take care when setting any value other than "0" as the bias torque at 0V (0mA). Torque is applied to the motor by
simply tuning ON the start signal without torque command.

♦ Parameters referred to ♦
Pr. 20 Acceleration/deceleration reference frequency Refer to page 155
Pr. 73 Analog input selection, Pr. 267 Terminal 4 input selection Refer to page 263
Pr. 79 Operation mode selection Refer to page 290
Pr. 858 Terminal 4 function assignment, Pr. 868 Terminal 1 function assignment Refer to page 262

4
PARAMETERS

281
Misoperation prevention and parameter
setting restriction

4.22 Misoperation prevention and parameter setting restriction

Purpose Parameter that must be Set Refer to Page
Limit reset function
Reset selection/disconnected
Trips when PU is disconnected Pr. 75 282
PU detection/PU stop selection
Stop from PU
Parameter write disable
Prevention of parameter rewrite Pr. 77 284
selection
Prevention of reverse rotation of the Reverse rotation prevention
Pr. 78 285
motor selection
Display of applied parameters
Display necessary parameters Pr. 160, Pr. 172 to Pr. 174 285
and user group function
Parameter restriction using password Password function Pr. 296, Pr. 297 287
Control of parameter write by
EEPROM write selection Pr. 342 311
communication

4.22.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75)

You can select the reset input acceptance, disconnected PU (FR-DU07/FR-PU04/FR-PU07) connector detection
function and PU stop function.

Parameter Initial
Name Setting Range Description
Number Value
For the initial value, reset always enabled,
Reset selection/disconnected
75 14 0 to 3, 14 to 17 without disconnected PU detection, and
PU detection/PU stop selection
with PU stop function are set.
⋅This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write
selection. Also, if parameter (all) clear is executed, this setting will not return to the initial value.

Pr. 75
Reset Selection Disconnected PU Detection PU Stop Selection
Setting
0 Reset input normally enabled.
If the PU is disconnected, operation
Reset input enabled only when the will be continued.
1
fault occurs Pressing decelerates the motor to
2 Reset input normally enabled.
When the PU is disconnected, the a stop only in the PU operation mode.
Reset input enabled only when the
3 inverter trips.
fault occurs
14
(initial Reset input normally enabled.
value) If the PU is disconnected, operation
will be continued. Pressing decelerates the motor to
Reset input enabled only when the
15
fault occurs a stop in any of the PU, external and
16 Reset input normally enabled. communication operation modes.
When the PU is disconnected, the
Reset input enabled only when the
17 inverter trips.
fault occurs

(1) Reset selection

• You can select the operation timing of reset function (RES signal, reset command through communication) input.
• When Pr. 75 is set to any of "1, 3, 15, 17", a reset can be input only when a fault occurs.
CAUTION
⋅ When the reset signal (RES) is input during operation, the motor coasts since the inverter being reset shuts off the output.
Also, the cumulative value of the electronic thermal relay function and regenerative brake duty is cleared.
⋅ The reset key of the PU is valid only when a fault occurs, independently of the Pr. 75 setting.

282
 Misoperation prevention and parameter
setting restriction

(2) Disconnected PU detection

• This function detects that the PU (FR-DU07/FR-PU04/FR-PU07) has been disconnected from the inverter for
longer than 1s and causes the inverter to provide a fault output (E.PUE) and come to trip.
• When Pr. 75 is set to any of "0, 1, 14, 15", operation is continued if the PU is disconnected.
CAUTION
⋅ When the PU has been disconnected since before power-on, it is not judged as a fault.
⋅ To make a restart, confirm that the PU is connected and then reset the inverter.
⋅ The motor decelerates to a stop when the PU is disconnected during PU jog operation with Pr. 75 set to any of "0, 1, 14, 15"
(operation is continued if the PU is disconnected).
⋅ When RS-485 communication operation is performed through the PU connector, the reset selection/PU stop selection function
is valid but the disconnected PU detection function is invalid.

(3) PU stop selection

• In any of the PU operation, external operation and Network operation modes, the motor can be stopped by
pressing of the PU.
• When the inverter is stopped by the PU stop function, " " is displayed. A fault signal is not provided.

• When Pr. 75 is set to any of "0 to 3", deceleration to a stop by is valid only in the PU operation mode.

REMARKS

The motor will also decelerate to a stop (PU stop) when is input during operation in the PU mode through RS-485
communication with Pr. 551 PU mode operation command source selection set to "1" (PU mode RS-485 terminals).

(4) Restarting method when stop was made by pressing from the PU during external
operation (PU stop (PS) reset method)
(a) When operation panel (FR- DU07) is used
Speed
1)After the motor has decelerated to a stop, turn OFF the
STF or STR signal.
Time
2)Press to display .••••••( canceled)
Key
Operation
panel
Key 3)Press to return to .
STF ON
(STR) OFF 4)Turn ON the STF or STR signal.
Stop/restart example for external operation
(b) Connection of the parameter unit (FR-PU04/FR-PU07)
1)After the motor has decelerated to a stop, turn OFF the
STF or STR signal.
2)Press EXT .••••••( canceled)
3)Turn ON the STF or STR signal.
• The motor can be restarted by making a reset using a power supply reset or RES signal.
4
CAUTION
⋅ If Pr. 250 Stop selection is set to other than "9999" to select coasting to a stop, the motor will not be coasted to a stop but
PARAMETERS

decelerated to a stop by the PU stop function during external operation

CAUTION
Do not reset the inverter with the start signal ON. Doing so will cause the inverter to start immediately after a
reset, leading to hazardous conditions.

♦ Parameters referred to ♦
Pr. 250 Stop selection Refer to page 189

283
Misoperation prevention and parameter
setting restriction

4.22.2 Parameter write selection (Pr. 77)

You can select whether write to various parameters can be performed or not. Use this function to prevent
parameter values from being rewritten by misoperation.

Parameter Setting
Name Initial Value Description
Number Range
0 Write is enabled only during a stop.
1 Parameter write is not enabled.
77 Parameter write selection 0
Parameter write is enabled in any operation
2
mode regardless of operating status.
Pr. 77 can be always set independently of the operation mode and operating status.

(1) Write parameters only at a stop (setting "0", initial value)

⋅ Parameters can be written only during a stop in the PU operation mode.
⋅ The shaded parameters in the parameter list (page 55) can always be written, regardless of the operation mode and
operating status. However, Pr. 72 PWM frequency selection, Pr. 240 Soft-PWM operation selection and Pr. 275 Stop-on
contact excitation current low-speed multiplying factor can be written during operation in the PU operation mode, but
cannot be written in External operation mode.
(2) Disable parameter write (setting "1") Parameter
Name
⋅ Parameter write is not enabled. (Reading is Number
enabled.) 22 Stall prevention operation level
⋅ Parameter clear and all parameter clear cannot 75 Reset selection/disconnected PU detection/PU stop selection
be performed, either. 77 Parameter write selection
⋅ The parameters given on the right can be written 79 Operation mode selection
even if Pr. 77 = "1". 160 User group read selection

(3) Write parameters during operation (setting "2")

⋅ Parameters can always be written.
⋅ The following parameters cannot be written during operation if Pr. 77 = "2". Stop operation when changing their
parameter settings.
Parameter Parameter
Name Name
Number Number
Stall prevention operation level compensation 292 Automatic acceleration/deceleration
23
factor at double speed 293 Acceleration/deceleration separate selection
48 Second stall prevention operation current Digital input increments selection
329
49 Second stall prevention operation frequency (Parameter for the plug-in option FR-A7AX)
60 Energy saving control selection 450 Second applied motor
61 Reference current 451 Second motor control method selection
Stall prevention operation reduction starting 453 Second motor capacity
66
frequency 454 Number of second motor poles
71 Applied motor 455 Second motor excitation current
79 Operation mode selection 456 Rated second motor voltage
80 Motor capacity 457 Rated second motor frequency
81 Number of motor poles 458 to 462 (Second motor constant)
82 Motor excitation current 463 Second motor auto tuning setting/status
83 Rated motor voltage Frequency command sign selection (CC-Link)
541
84 Rated motor frequency (Parameter for the plug-in option FR-A7NC)
90 to 94 (Motor constants) 574 Second motor online auto tuning
95 Online auto tuning selection 800 Control method selection
96 Auto tuning setting/status 819 Easy gain tuning selection
100 to 109 (Adjustable 5 points V/F parameter) 858 Terminal 4 function assignment
135 to 139 (Parameter for electronic bypass sequence) 859 Torque current
178 to 196 (I/O terminal function selection) 860 Second motor torque current
291 Pulse train I/O selection 868 Terminal 1 function assignment

♦ Parameters referred to ♦
Pr. 79 Operation mode selection Refer to page 290

284
 Misoperation prevention and parameter
setting restriction

4.22.3 Reverse rotation prevention selection (Pr. 78)

This function can prevent reverse rotation fault resulting from the incorrect input of the start signal.

Parameter
Name Initial Value Setting Range Description
Number
Both forward and reverse rotations
0
Reverse rotation prevention allowed
78 0
selection 1 Reverse rotation disabled
2 Forward rotation disallowed
⋅ Set this parameter when you want to limit the motor rotation to only one direction.
⋅ This parameter is valid for all of the reverse rotation and forward rotation keys of the operation panel (FR-DU07),
parameter unit (FR-PU04/FR-PU07), start signals (STF, STR signals) via external terminals, and the forward and
reverse rotation commands through communication.

4.22.4 Display of applied parameters and user group function (Pr. 160, Pr. 172 to Pr. 174)

Parameter which can be read from the operation panel and parameter unit can be restricted.

Parameter
Name Initial Value Setting Range Description
Number
Only the simple mode parameters can
9999
be displayed.
The simple mode and extended
160 *2 User group read selection 0 0
parameters can be displayed
Only parameters registered in the user
1
group can be displayed.
Displays the number of cases registered
User group registered display/ (0 to 16)
172 0 as a user group. (Reading only)
batch clear
9999 Batch clear the user group registration
Set the parameter numbers to be
173 *1 User group registration 9999 0 to 999, 9999
registered to the user group.
Set the parameter numbers to be cleared
174 *1 User group clear 9999 0 to 999, 9999
from the user group.
*1 The values read from Pr. 173 and Pr. 174 are always "9999".
*2 This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter
write selection.

(1) Display of simple mode parameters and extended parameters (Pr. 160)
⋅ When Pr. 160 = "9999", only the simple mode parameters can be displayed on the operation panel (FR-DU07) and
parameter unit (FR-PU04/FR-PU07). (Refer to the parameter list, pages 55 to 67, for the simple mode parameters.)
⋅ In the initial setting (Pr. 160 = "0") status, simple mode parameters and extended parameters can be displayed.
REMARKS
⋅ When a plug-in option is fitted to the inverter, the option parameters can also be read.
⋅ When reading the parameters using the communication option, all parameters can be read regardless of the Pr. 160 setting. 4
⋅ When reading the parameters using the RS-485
terminals, all parameters can be read regardless of the Pr. 551 Pr. 550 Pr. 160 Valid/Invalid
Pr. 160 setting by setting Pr.550 NET mode operation 1 (RS-485) ⎯ Valid
PARAMETERS

command source selection and Pr. 551 PU mode operation 0 (OP) Valid
command source selection.
2 (PU) 1 (RS-485) Invalid (all readable)
(initial value) 9999 With OP: valid
3 (USB) (auto-detect) Without OP: invalid
(initial value) (all readable)
* OP indicates a communication option
⋅ Pr. 15 Jog frequency, Pr. 16 Jog acceleration/deceleration time Pr. 991 PU contrast adjustment are displayed as simple mode
parameters when the parameter unit (FR-PU04/FR-PU07) is mounted.

285
Misoperation prevention and parameter
setting restriction

(2) User group function (Pr. 160, Pr. 172 to Pr. 174)
⋅ The user group function is designed to display only the parameters necessary for setting.
⋅ From among all parameters, a maximum of 16 parameters can be registered to a user group. When Pr. 160 is set to
"1", only the parameters registered to the user group can be accessed. (Reading of parameters other than the user
group registration is disabled.)
⋅ To register a parameter to the user group, set its parameter number to Pr. 173.
⋅ To delete a parameter from the user group, set its parameter number to Pr. 174. To batch-delete the registered
parameters, set Pr. 172 to "9999".
(3) Registration of parameter to user group (Pr. 173)
When registering Pr. 3 to user group

Operation Indication
1.Confirm the operation display and operation
mode display.
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Press in the External operation mode.)

2.Press to choose the parameter setting Parameter setting mode

mode.
Pr. 173 User group
3.Turn until appears. registration is displayed.

When Pr. 173 is read,

4.Press to display. " " "9999" is displayed.

Select the parameter

5.Turn until Pr. 3 appears. number to be registered.

6.Press to set.
" " and " " are displayed alternately.
To continue parameter registration, repeat Flicker ··· Registration of Pr. 3 to user group
steps 3 to 6. completed!!
(4) Deletion of parameter from user group (Pr. 174)
When deleting Pr. 3 from user group
Operation Indication
1.Confirm the operation display and operation
mode display.
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Press in the External operation mode.)

2.Press to choose the parameter setting Parameter setting mode

mode.
Pr. 174 User group
3.Turn until appears. clear is displayed.

When Pr. 174 is read,

4.Press to display. " " "9999" is displayed.

Select the parameter

5.Turn until Pr. 3 appears. number to be deleted.

6.Press to clear.
" " and " " are displayed alternately.
To continue parameter registration, repeat Flicker ··· Deletion of Pr. 3 from user group
steps 3 to 6. completed!!

REMARKS
⋅ Pr. 77, Pr. 160 and Pr. 991 can always be read, independently of the user group setting.
⋅ Pr. 77, Pr. 160 and Pr. 172 to Pr. 174 cannot be registered to the user group.
⋅ When Pr. 174 is read, "9999" is always displayed. Although "9999" can be written, no function is available.
⋅ When any value other than "9999" is set to Pr. 172, no function is available.

♦ Parameters referred to ♦
Pr. 550 NET mode operation command source selection Refer to page 299
Pr. 551 PU mode operation command source selection Refer to page 299

286
 Misoperation prevention and parameter
setting restriction

4.22.5 Password function (Pr. 296, Pr. 297)

Registering a 4-digit password can restrict parameter reading/writing.

Parameter
Name Initial Value Setting Range Description
Number
0 to 6, 99, 100 to Select restriction level of parameter reading/
296 *2 106, 199 writing when a password is registered.
Password lock level 9999
9999 No password lock

1000 to 9998 Register a 4-digit password

297 *2 Displays password unlock error count.
Password lock/unlock 9999 (0 to 5) *1 (Reading only) (Valid when Pr. 296 = "100"
to "106", "199")
9999 *1 No password lock
The above parameters can be set when Pr. 160 User group read selection = "0".
When Pr. 296 ≠ "9999" (with password lock), note that Pr. 297 is always available for setting regardless of Pr. 160 setting.
*1 Only Pr.297 can be set anytime as Pr.297 = "0 or 9999." However, the setting is invalid (the displayed value does not change).
*2 This parameter allows its setting to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter
write selection.
...............Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

(1) Parameter reading/writing restriction level (Pr. 296)

Level of reading/writing restriction by PU/NET operation mode operation command can be selected by Pr. 296.
PU Operation Mode Operation NET Operation Mode Operation Command *4
Pr. 296 Setting Command *3 RS-485 Terminals Communication Option
Read *1 Write *2 Read Write *2 Read Write *2
9999
0, 100 *6 × × × × × ×
1, 101 × × ×
2, 102 ×
3, 103 × ×
4, 104 × × × × ×
5, 105 × ×
6, 106 × × ×
Only parameters registered in the user group can be read/written. *5
99, 199
(For the parameters not registered in the user group, same restriction level as "4, 104" applies.)
: enabled, ×: restricted
*1 If the parameter reading is restricted by the Pr. 160 setting, those parameters are unavailable for reading even when " " is indicated.
*2 If the parameter writing is restricted by the Pr. 77 setting, those parameters are unavailable for writing even when " " is indicated.
*3 This restricts parameter access from the command source that can write a parameter under the PU operation mode (initially the operation panel
(FR-DU07) or the parameter unit). (For how to select the PU mode command source, refer to page 299.)
*4 This restricts parameter access from the command source that can write a parameter under the Network operation mode (initially the RS-485
terminals or a communication option). (For how to select the NET mode command source, refer to page 299.)
*5 Read/write is enabled only in the simple mode parameters registered in the user group when Pr.160 User group read selection = "9999".
Pr.296 and Pr.297 are always read/write enabled whether registered to a user group or not.
*6 If a communication option is installed, option fault (E.OPT) occurs, and inverter trips. (Refer to page 393.)
4
PARAMETERS

287
Misoperation prevention and parameter
setting restriction

(2) Password lock/unlock (Pr.296, Pr.297)

<Lock>
1) Set parameter reading/writing restriction level. (Pr. 296 ≠ 9999)
Restriction of Password
Pr.296 Setting Pr.297 Display
Unlock Error
0 to 6, 99 No restriction Always 0
Displays error count
100 to 106, 199 Restricted at fifth error
(0 to 5)
* If password unlock error has occurred 5 times when Pr. 296 = "100 to 106, 199", correct password will not unlock the restriction. All parameter clear can
unlock the restriction.
(In this case, parameter setting are cleared.)

2) Write a four-digit number (1000 to 9998) in Pr. 297 as a password.

(When Pr. 296 = "9999", Pr. 297 cannot be written.)
When password is registered, parameter reading/writing is restricted with the restriction set level in Pr. 296 until
unlocking.

REMARKS
After registering a password, a read value of Pr. 297 is always "0" to "5".
When a password restricted parameter is read/written, is displayed.
Even if a password is registered, parameters which the inverter itself writes, such as inverter parts life, are overwritten as
needed.
Even if a password is registered, Pr. 991 PU contrast adjustment can be read/written when a parameter unit (FR-PU04/FR-PU07)
is connected.
<Unlock>
There are two ways of unlocking the password.
Enter a password in Pr. 297.
Unlocked when a password is correct. If a password is incorrect, an error occurs and not unlocked.
If password unlock error has occurred 5 times when Pr. 296 = "100 to 106, 199", correct password will not unlock the
restriction. (During password lock)

Perform all parameter clear.

CAUTION
If the password has been forgotten, perform all parameter clear to unlock the parameter restriction. In that case, other
parameters are also cleared.
All parameter clear can not be performed during the operation.
y Do not use FR Configurator under the conditions that parameter read is restricted (Pr. 296 = "0, 4, 5, 99, 100, 104, 105, 199").
FR Configurator may not function properly.

REMARKS
The password unlock method is different for operation panel (FR-DU07)/FR-PU07, RS-485 communication, and communication
option.
FR-DU07/ RS-485 Communication
FR-PU07 Communication Option
All Parameter Clear
(Instruction Code H9966, H55AA)
Parameter Clear
× ×
(Instruction Code H9696, H5A5A)
: Password can be unlocked, ×: Password cannot be unlocked

288
 Misoperation prevention and parameter
setting restriction

(3) Parameter operation during password locked/unlocked

Password Unlocked Password Registered Password Locked
Parameter Pr. 296 ≠ 9999 Pr. 296 = 100 to 106, 199
Pr. 296 = 9999 Pr. 296 ≠ 9999
Operation Pr. 297 = 0 to 4 Pr. 297 = 5
Pr. 297 = 9999 Pr. 297 = 9999
(Read value) (Read value)
Read *1
Pr. 296
Write *1 *1 × ×
Read *1
Pr. 297
Write × *3
Performing
× *4 × *4
Parameter Clear
Performing
*2 *2
All Parameter Clear
Performing
× ×
Parameter Copy
: enabled, ×: restricted
*1 Reading/writing is unavailable when there is restriction to reading by the Pr. 160 setting.
(Reading is available in NET operation mode regardless of Pr. 160 setting.)
*2 Unavailable during the operation.
*3 Correct password will not unlock the restriction.
*4 Parameter clear is available only from the communication option.

REMARKS
When Pr.296 = "4, 5, 104, 105" (password lock), the setting screen for PU JOG frequency is not displayed in the parameter unit (FR-
PU04 or FR-PU07).
Parameter copy is not available with operation panel (FR-DU07)/parameter unit (FR-PU07) when password is registered.

♦ Parameters referred to ♦
Pr. 77 Parameter write selection Refer to page 284
Pr. 160 User group read selection Refer to page 285
Pr. 550 NET mode operation command source selection Refer to page 299
Pr. 551 PU mode operation command source selection Refer to page 299

4
PARAMETERS

289
Selection of operation mode and operation location

4.23 Selection of operation mode and operation location

Refer to
Purpose Parameter that must be Set
Page
Operation mode selection Operation mode selection Pr. 79 290
Started in network operation mode Operation mode at power on Pr. 79, Pr. 340 298
Selection of control source, speed
Pr. 338, Pr. 339,
Selection of control location command source and control location 299
Pr. 550, Pr. 551
during communication operation

4.23.1 Operation mode selection (Pr. 79)

Used to select the operation mode of the inverter.
Mode can be changed as desired between operation using external command signals (external operation),
operation from the PU (FR-DU07/FR-PU07/FR-PU04), combined operation of PU operation and external
operation (external/PU combined operation, and network operation (when RS-485 terminals or a communication
option is used).

LED Indicator
Parameter Initial Setting
Name Description : OFF
Number Value Range
: ON
PU operation mode

Use external/PU switchover mode ( ) to switch External operation mode

0
between the PU and External operation mode.
At power on, the inverter is in the External operation mode. NET operation mode

PU operation mode
1 Fixed to PU operation mode

External operation mode

Fixed to External operation mode
2 Operation can be performed by switching between the NET operation mode
external and NET operation mode.

External/PU combined operation mode 1

Frequency command Start command
PU (FR-DU07/FR-PU04/FR-
Operation 3 PU07) setting or external signal
External signal input
79 *1 mode 0 input (multi-speed setting,
(terminal STF, STR)
selection across terminals 4-5 (valid External/PU combined
when AU signal turns on)). *2 operation mode
External/PU combined operation mode 2
Frequency command Start command
Input from the PU (FR-
4 External signal input DU07/FR-PU04/FR-
(Terminal 2, 4, 1, JOG, multi- PU07)
speed selection, etc.)
( , )
Switch-over mode
6 Switch among PU operation, external operation, and NET
operation while keeping the same operating status. PU operation mode
External operation mode (PU operation interlock)
X12 signal ON External operation mode
Operation mode can be switched to the PU operation
mode.
7 NET operation mode
(output stop during external operation)
X12 signal OFF
Operation mode can not be switched to the PU
operation mode.
The above parameters can be changed during a stop in any operation mode.
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write selection.
*2 The priorities of the frequency commands when Pr. 79 = "3" are "Multi-speed operation (RL/RM/RH/REX) > PID control (X14) > terminal 4 analog
input (AU) > digital input from the operation panel".

290
 Selection of operation mode and operation location

(1) Operation mode basics

⋅ The operation mode is specifies the source of the
start command and frequency command for the
inverter.
Personal
computer
⋅ Basically, there are following operation modes.
PU operation ⋅ External operation mode: For inputting start
mode
command and frequency command by an external
Inverter
Operation
potentiometer and switches which are connected
USB
panel Personal to the control circuit terminal.
computer
connector PU connector ⋅ PU operation mode: For inputting start command
and frequency command by operation panel (FR-
Network operation mode
DU07), parameter unit (FR-PU04-MGI) and RS-
485 communication with PU connector.
RS-485 ⋅ Network operation mode (NET operation
terminals
Personal mode): For inputting start command and
computer PLC
frequency command by RS-485 terminal and
communication options.
Communication
option
Network operation ⋅ The operation mode can be selected from the
mode operation panel or with the communication
External terminal instruction code.
External
operation Volume Switch
mode

REMARKS
⋅ Either "3" or "4" may be set to select the PU/external combined operation, and these settings differ in starting method.

⋅ In the initial setting, the stop function by of the PU (FR-DU07/FR-PU07) (PU stop selection) is valid also in other than the
PU operation mode. (Pr. 75 Reset selection/disconnected PU detection/PU stop selection. Refer to page 282.)

(2) Operation mode switching method

When "0, 1, or 2" is set in Pr. 340 External operation

Switching from the network Switching from the PU

Switch to the External Press of
operation mode from Press of the PU to light
the network. Switch to the Network operation
mode from the network. the PU to light

Network operation PU operation

4
PARAMETERS

When "10 or 12" is set in Pr. 340

Press of the PU to light
Network operation PU operation

Press of the PU to light

REMARKS
⋅ For switching of operation by external terminals, refer to the following:
PU operation external interlock signal (X12 signal) page 295
PU-external operation switch-over signal (X16) page 296
PU-NET operation switchover signal (X65), External-NET operation switchover signal (X66) page 297
Pr. 340 Communication startup mode selection page 298

291
Selection of operation mode and operation location

(3) Operation mode selection flow

In the following flowchart, select the basic parameter setting and terminal connection related to the operation mode.
START Connection Parameter setting Operation

Where is the start command

source?
From external (STF/STR terminal)

Where is the frequency set?

From external (Terminal 2, 4, STF (forward rotation)/STR

JOG, multi-speed, etc.) (reverse rotation)
(Refer to page 207.) Frequency setting terminal ON
Terminal 2, 4 (analog), RL, RM, STF(STR) ON
RH, JOG, etc.

From PU (Digital setting) STF (forward rotation)/STR Pr. 79 = "3" DU digital setting
(reverse rotation) (External/PU combined
(Refer to page 207.) operation 1) STF(STR) ON

From communication (RS-485 terminals/communication option)

RS-485 terminals or
communication option?
RS-485 terminals STF (forward rotation)/STR
(reverse rotation) Communication frequency setting
(Refer to page 207.) Pr. 338 = "1"
command sending
Connection of RS-485 terminals Pr. 340 = "1, 2"
STF(STR) ON
(Refer to page 307.)

Communication option Connection of communication Communication frequency setting

option Pr. 338 = "1"
command sending
(Refer to the corresponding communication Pr. 340 = "1"
From PU (FWD/REV key) option instruction manual) STF(STR) ON

Where is the frequency set?

From external (Terminal 2, 4, JOG, Pr. 79 = "4"

multi-speed, etc.) Terminal 2, 4 (analog), RL, RM, Frequency setting terminal ON
RH, JOG, etc. (External/PU combined
FWD/REV key ON
operation 2)

From PU (Digital setting) Pr. 79 = "1" Digital setting

(Fixed to PU operation) FWD/REV key ON
From communication
(RS-485 terminals/communication option)
Disabled

From communication (RS-485 terminals/communication option)

RS-485 terminals or
communication option?
RS-485 terminals

Where is the frequency set?

From external (Terminal 2, 4, JOG, multi-speed, etc.)

Connection of RS-485 terminals
(Refer to page 307.) Pr. 339 = "1" Frequency setting terminal ON
Communication start command
Terminal 2, 4 (analog), RL, RM, Pr. 340 = "1, 2" sending
RH, JOG, etc.
From PU (Digital setting)
Disabled
From communication
RS-485 terminals Communication frequency setting
Connection of RS-485 terminals command sending
Pr. 340 = "1, 2"
(Refer to page 307.) Communication start command
Communication option sending

Where is the frequency set?

From external (Terminal 2, 4, JOG, multi-speed, etc.)

Connection of communication option
(Refer to the corresponding communication
Pr. 339 = "1" Frequency setting terminal ON
option instruction manual) Communication start command
Terminal 2, 4 (analog), RL, RM, Pr. 340 = "1" sending
RH, JOG, etc.
From PU (Digital setting)
Disabled
From communication (communication option)
Communication frequency setting
Connection of communication option command sending
(Refer to the corresponding communication Pr. 340 = "1"
option instruction manual)
Communication start command
sending

292
 Selection of operation mode and operation location

(4) External operation mode (setting "0" (initial value), "2")

⋅ Select the External operation mode when the start
command and the frequency command are applied
from a frequency setting potentiometer, start switch, etc.
externally and connecting them to the control circuit
terminals of the inverter.
3
4
5 6
7 ⋅ Generally, parameter change cannot be performed from
8
9
10
Hz
the operation panel in the External operation mode.
(Some parameters can be changed. Refer to the
detailed description of each parameter.)
⋅ When "0" or "2" is selected for Pr. 79, the inverter enters
the External operation mode at power on. (When using
Inverter the Network operation mode, refer to page 298)
⋅ When parameter changing is seldom necessary, setting
Forward rotation start STF "2" fixes the operation mode to External operation
Reverse rotation start STR mode. When frequent parameter changing is
SD necessary, setting "0" (initial value) allows the operation
10 mode to be changed easily to PU operation mode by
Frequency setting
2
potentiometer pressing of the operation panel. When you
5
switched to PU operation mode, always return to
External operation mode.
⋅ The STF and STR signal are used as a start command,
and the voltage or current signal to terminal 2, 4, multi-
speed signal, JOG signal, etc. are used as frequency
command.

(5) PU operation mode (setting "1")

⋅ Select the PU operation mode when applying start
command and the frequency command by only the key
operation of the operation panel (FR-DU07) or
parameter unit (FR-PU04/FR-PU07). Also select the PU
operation mode when making communication using the
PU connector.
⋅ When "1" is selected for Pr. 79, the inverter enters the
PU operation mode at power on. You cannot change to
Operation panel
(FR-DU07) the other operation mode.
⋅ The setting dial of the operation panel can be used for
setting like a potentiometer. (Pr. 161 Frequency setting/key
lock operation selection, refer to page 371.)
⋅ When PU operation mode is selected, the PU operation
mode signal (PU) can be output.
For the terminal used for the PU signal output, assign
the function by setting "10 (positive logic) or 110 4
(negative logic)" in any of Pr. 190 to Pr. 196 (output
terminal function selection).
PARAMETERS

293
Selection of operation mode and operation location

(6) PU/External combined operation mode 1 (setting "3")

⋅ Select the PU/External combined operation mode 1
when applying frequency command from the operation
panel (FR-DU07) or parameter unit (FR-PU04/FR-
PU07) and inputting the start command with the
external start switch.
⋅ Select "3" for Pr. 79. You cannot change to the other
operation mode.
Inverter ⋅ When a frequency is input from the external signal by
multi-speed setting, it has a higher priority than the
Forward rotation STF frequency setting of the PU. When AU is on, the
start STR
Reverse rotation command signal to terminal 4 is used.
start SD

Operation panel
(FR-DU07)

(7) PU/External combined operation mode 2 (setting "4")

4
5 6
⋅ Select the PU/External combined operation mode 2
when applying frequency command from the external
3 7
8
9

potentiometer, multi-speed or JOG signal and inputting

10

Hz

the start command by key operation of the operation

panel (FR-DU07) or parameter unit (FR-PU04/FR-
PU07).
⋅ Select "4" for Pr. 79. You cannot change to the other
operation mode.

Inverter

Frequency setting 10
potentiometer 2
5

Operation panel
(FR-DU07)

294
 Selection of operation mode and operation location

(8) Switch-over mode (setting "6")

⋅ While continuing operation, you can switch among PU operation, External operation and Network operation (when
RS-485 terminals or communication option is used).
Operation Mode Switching Switching Operation/Operating Status
Select the PU operation mode with the operation panel or parameter unit.
External operation → PU ⋅ Rotation direction is the same as that of external operation.
operation ⋅ The frequency set with the potentiometer (frequency setting command), etc. is used unchanged.
(Note that the setting will disappear when power is switched off or the inverter is reset.)
Send the mode change command to Network operation mode through communication.
External operation → NET ⋅ Rotation direction is the same as that of external operation.
operation ⋅ The value set with the setting potentiometer (frequency setting command) or like is used
unchanged. (Note that the setting will disappear when power is switched off or the inverter is reset.)
Press the external operation key of the operation panel, parameter unit.
PU operation → External
⋅ The rotation direction is determined by the input signal of the external operation.
operation
⋅ The set frequency is determined by the external frequency command signal.
PU operation → NET Send the mode change command to Network operation mode through communication.
operation ⋅ Rotation direction and set frequency are the same as those of PU operation.
Send the mode change command to External operation mode through communication.
NET operation → External
⋅ The rotation direction is determined by the input signal of the external operation.
operation
⋅ The set frequency is determined by the external frequency command signal.
NET operation → PU Select the PU operation mode with the operation panel or parameter unit.
operation ⋅ The rotation direction and frequency command in Network operation mode are used unchanged.

(9) PU operation interlock (setting "7")

⋅ The PU operation interlock function is designed to forcibly change the operation mode to External operation mode when
the PU operation interlock signal (X12) input turns off. This function prevents the inverter from being inoperative by the
external command if the mode is accidentally left unswitched from PU operation mode.
⋅ Set "7" (PU operation interlock) in Pr. 79.
⋅ For the terminal used for X12 signal (PU operation interlock signal) input, set "12" in any of Pr. 178 to Pr. 189 (input
terminal function selection) to assign the function. (Refer to page 207 for Pr. 178 to Pr. 189.)
⋅ When the X12 signal has not been assigned, the function of the MRS signal switches from MRS (output stop) to the
PU operation interlock signal.
X12 (MRS) Function/Operation
Signal Operation mode Parameter write
Operation mode (External, PU, NET) switching Parameter write enabled (Pr. 77 Parameter write
ON enabled selection, depending on the corresponding parameter
Output stop during external operation write condition (Refer to page 55 for the parameter list))
Forcibly switched to External operation mode
OFF External operation allowed Parameter write disabled with exception of Pr. 79
Switching to PU or NET operation mode disabled
<Function/operation changed by switching ON/OFF the X12 (MRS) signal>
Operating Condition Switching to
X12 (MRS) Operation
Operation Operating Status PU, NET
Status Signal Mode
mode Operation Mode
During stop ON→OFF *1 If external operation frequency setting and start signal Disallowed
PU/NET External *2
Running ON→OFF *1 are entered, operation is performed in that status. Disallowed 4
OFF→ON Allowed
During stop During stop
ON→OFF Disallowed
External External *2
During operation → output stop
PARAMETERS

OFF→ON Disallowed
Running
ON→OFF Output stop → operation Disallowed
*1 The operation mode switches to External operation mode independently of whether the start signal (STF, STR) is on or off. Therefore, the
motor is run in External operation mode when the X12 (MRS) signal is turned off with either of STF and STR on.

*2 At alarm occurrence, pressing of the operation panel resets the inverter.

CAUTION
⋅ If the X12 (MRS) signal is on, the operation mode cannot be switched to PU operation mode when the start signal (STF, STR) is on.
⋅ When the MRS signal is used as the PU interlock signal, the MRS signal serves as the normal MRS function (output stop) by
turning on the MRS signal and then changing the Pr. 79 value to other than "7" in the PU operation mode. Also as soon as "7"
is set in Pr. 79, the signal acts as the PU interlock signal.
⋅ When the MRS signal is used as the PU operation interlock signal, the logic of the signal is as set in Pr. 17. When Pr. 17 = "2",
read ON as OFF and OFF as ON in the above explanation.
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

295
Selection of operation mode and operation location

(10) Switching of operation mode by external signal (X16 signal)

⋅ When external operation and operation from the operation panel are used together, use of the PU-external
operation switching signal (X16) allows switching between the PU operation mode and External operation mode
during a stop (during a motor stop, start command off).
⋅ When Pr. 79 = any of "0, 6, 7", the operation mode can be switched between the PU operation mode and External
operation mode. (Pr. 79 = "6" At switch-over mode, operating mode can be changed during operation)
⋅ For the terminal used for X16 signal input, set "16" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function.
Pr. 79 X16 Signal State Operation Mode
Remarks
Setting ON (external) OFF (PU)
External operation
0 (initial value) PU operation mode Can be switched to external, PU or NET operation mode
mode
1 PU operation mode Fixed to PU operation mode
Fixed to External operation mode (Can be switched to NET
2 External operation mode
operation mode)
3, 4 External/PU combined operation mode External/PU combined mode fixed
External operation Can be switched to External, PU or NET operation mode with
6 PU operation mode
mode operation continued
X12 (MRS) External operation Can be switched to External, PU or NET operation mode (Output
PU operation mode
ON mode stop in External operation mode)
7
X12 (MRS) Fixed to External operation mode (Forcibly switched to External
External operation mode
OFF operation mode)

REMARKS
⋅ The operation mode status changes depending on the setting of Pr. 340 Communication startup mode selection and the ON/OFF
status of the X65 and X66 signals. (For details, refer to page 297.)
⋅ The priorities of Pr. 79, Pr. 340 and signals are Pr. 79 > X12 > X66 > X65 > X16 > Pr. 340.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

296
 Selection of operation mode and operation location

(11) Switching of operation mode by external signal (X65, X66 signal)

⋅ When Pr. 79 = any of "0, 2, 6" the operation mode switching signals (X65, X66) can be used to change the PU or
External operation mode to Network operation mode during a stop (during a motor stop or start command off). (Pr.
79 = "6" switch-over mode can be changed during operation)
⋅ When switching between the Network operation mode and PU operation mode
1) Set Pr. 79 to "0" (initial value), "6".
2) Set "10 or 12" in Pr. 340 Communication startup mode selection.
3) Set "65" in any of Pr. 178 to Pr. 189 to assign the NET-PU operation switchover signal (X65) to the terminal.
4) The operation mode changes to PU operation mode when the X65 signal turns on, or to Network operation mode
when the X65 signal turns off.
Pr. 340 Pr. 79 X65 Signal State
Remarks
Setting Setting ON (PU) OFF (NET)
0 (initial value) PU operation mode *1 NET operation mode *2 ⎯
1 PU operation mode Fixed to PU operation mode
2 NET operation mode Fixed to NET operation mode
3, 4 External/PU combined operation mode External/PU combined mode fixed
10, 12 6 PU operation mode *1 NET operation mode *2 Operation mode can be switched with operation continued
X12(MRS) Switching among the external and
Output stop in External operation mode
ON PU operation mode is enabled
7
X12(MRS)
External operation mode Forcibly switched to External operation mode
OFF
*1 NET operation mode when the X66 signal is on.
*2 PU operation mode when the X16 signal is off. PU operation mode also when Pr. 550 NET mode operation command source selection = "0"
(communication option control source) and the communication option is not fitted.
External operation mode when the X16 signal is on.
⋅ When switching between the Network operation mode and External operation mode
1)Set Pr. 79 to "0" (initial value), "2", "6" or "7". (At the Pr. 79 setting of "7", the operation mode can be switched when the
X12 (MRS) signal turns on.)
2)Set "0 (initial value), 1 or 2" in Pr. 340 Communication startup mode selection.
3)Set "66" in any of Pr. 178 to Pr. 189 to assign the NET-external operation switchover signal (X66) to the terminal.
4)The operation mode changes to Network operation mode when the X66 signal turns on, or to External operation mode
when the X66 signal turns off.
Pr. 340 Pr. 79 X66 Signal State
Remarks
Setting Setting ON (NET) OFF(external)
0 (initial value) NET operation mode *1 External operation mode *2 ⎯
1 PU operation mode Fixed to PU operation mode
2 NET operation mode *1 External operation mode Cannot be switched to PU operation mode
0
(initial 3, 4 External/PU combined operation mode External/PU combined mode fixed
value), 6 NET operation mode *1 External operation mode *2 Operation mode can be switched with operation continued
1, 2 X12(MRS)
NET operation mode *1 External operation mode *2 Output stop in External operation mode
ON
7
X12(MRS)
External operation mode Forcibly switched to External operation mode
OFF
*1 PU operation mode is selected when Pr. 550 NET mode operation command source selection = "0" (communication option control source) and the
communication option is not fitted.
*2 PU operation is selected when the X16 signal is off. When the X65 signal has been assigned, the operation mode changes with the ON/OFF
state of the X65 signal. 4
REMARKS
⋅ The priorities of Pr. 79, Pr. 340 and signals are Pr. 79 > X12 > X66 > X65 > X16 > Pr. 340.
PARAMETERS

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 15 Jog frequency Refer to page 150
Pr. 4 to 6, Pr. 24 to 27, Pr. 232 to Pr. 239 Multi-speed operation Refer to page 148
Pr. 75 Reset selection/disconnected PU detection/PU stop selection Refer to page 282
Pr. 161 Frequency setting/key lock operation selection Refer to page 371
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
Pr. 340 Communication startup mode selection Refer to page 298
Pr. 550 NET mode operation command source selection Refer to page 299

297
Selection of operation mode and operation location

4.23.2 Operation mode at power on (Pr. 79, Pr. 340)

When power is switched on or when power comes back on after instantaneous power failure, the inverter can be
started up in Network operation mode.
After the inverter has started up in the Network operation mode, parameter write and operation can be performed
from a program.
Set this mode for communication operation using the RS-485 terminals or communication option.
Parameter Initial Setting
Name Description
Number Value Range
79 *1 Operation mode selection 0 0 to 4, 6, 7 Select the operation mode. (Refer to page 292.)
0 As set in Pr. 79.
Started in Network operation mode.
1, 2 When the setting is "2", it will resume the pre-instantaneous power
failure operation mode after an instantaneous power failure occurs.
Communication startup
340 *2, *3 0 Started in Network operation mode. Operation mode can be
mode selection
changed between the PU operation mode and Network operation
10, 12 mode from the operation panel. When the setting is "12", it will
resume the pre-instantaneous power failure operation mode after
an instantaneous power failure occurs.
The above parameters can be changed during a stop in any operation mode.
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write selection.
*2 This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.
*3 *The parameters can be set whenever the communication option is connected. (Refer to page 285.).

(1) Specify operation mode at power on (Pr. 340)

⋅ Depending on the Pr. 79 and Pr. 340 settings, the operation mode at power on (reset) changes as described below.
Pr. 340 Pr. 79 Operation Mode at Power on, Power
Operation Mode Switching
Setting Setting Restoration, Reset
0
Switching among the external, PU, and NET operation
(initial External operation mode
mode is enabled *2
value)
1 PU operation mode Fixed to PU operation mode
Switching between the external and Net operation mode is
2 External operation mode enabled
0
Switching to PU operation mode is disabled
(initial
3, 4 External/PU combined operation mode Operation mode switching is disabled
value)
Switching among the external, PU, and NET operation
6 External operation mode
mode is enabled while running
Switching among the external, PU, and NET operation
External operation mode when X12 (MRS) signal ON
mode is enabled *2
7
Fixed to External operation mode (forcibly switched to
External operation mode when X12 (MRS) signal OFF
External operation mode.)
0 NET operation mode
1 PU operation mode
2 NET operation mode
1, 2 *1 3, 4 External/PU combined operation mode Same as when Pr. 340 = "0"
6 NET operation mode
NET operation mode when X12 (MRS) signal ON
7
External operation mode when X12 (MRS) signal OFF
0 NET operation mode Switching between the PU and NET operation mode is enabled *3
1 PU operation mode Same as when Pr. 340 = "0"
2 NET operation mode Fixed to NET operation mode
10, 12 3, 4 External/PU combined operation mode Same as when Pr. 340 = "0"
*1
Switching among the external, PU, and NET operation
6 NET operation mode
mode is enabled while running *3
7 External operation mode Same as when Pr. 340 = "0"
*1 The Pr. 340 setting "2" or "12" is mainly used for communication operation using the inverter RS-485 terminals. When a value other than "9999"
(selection of automatic restart after instantaneous power failure) is set in Pr. 57 Restart coasting time, the inverter will resume the same operation
state which was in before after power has been restored from an instantaneous power failure.
When Pr. 340 = "1, 10", a start command turns off if power failure has occurred and then restored during a start command is on.
*2 The operation mode cannot be switched directly between the PU operation mode and Network operation mode.

*3 Operation mode can be changed between the PU operation mode and Network operation mode with key of the operation panel (FR-DU07) and
X65 signal.
♦ Parameters referred to ♦
Pr. 57 Restart coasting time Refer to page 243.
Pr. 79 Operation mode selection Refer to page 290.

298
 S e le c tio n o f o p e ra tio n m o d e a n d o p e ra tio n lo c a tio n

4.23.3 Start command source and frequency command source during

communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551)
When the RS-485 terminals or communication option is used, the external start command and frequency
command can be valid. Command source in the PU operation mode can be selected.
Parameter Initial Setting
Name Description
Number Value Range
Communication operation 0 Start command source communication
338 0
command source 1 Start command source external
0 Frequency command source communication
Communication speed 1 Frequency command source external
339 0
command source Frequency command source external (Frequency command from
2 communication is valid, frequency command from terminal 2 is invalid)
The communication option is the command source when NET
0 operation mode.
NET mode operation RS-485 terminals are the command source when NET operation
1 mode.
550 * command source 9999
selection Automatic communication option recognition
Normally, RS-485 terminals are the command source. When a
9999 communication option is mounted, the communication option is the
command source.
1 RS-485 terminals are the command source when PU operation mode
PU mode operation
551 * 2 2 PU connector is the command source when PU operation mode.
command source selection
3 USB connector is the command source when PU operation mode.
The above parameters can be set whenever the communication option is connected. (Refer to page 285.)
*1 This parameter can be changed during a stop in any operation mode.
*2 This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.

(1) Select the command source of the network operation mode (Pr. 550)
⋅ Either the RS-485 terminals or communication option can be specified as the command source in network
operation mode.
⋅ For example, set Pr. 550 to "1" when executing parameter write, start command or frequency command from the
inverter RS-485 terminals in the Network operation mode independently of whether the communication option is
connected or not.
CAUTION
⋅ Since Pr. 550 = "9999" (automatic recognition of the communication option) in the initial setting, parameter write, start command
and frequency command cannot be executed by communication using the inverter RS-485 terminals when the communication
option is fitted. (Monitor and parameter read can be performed.)

4
PARAMETERS

299
Selection of operation mode and operation location

(2) Select the control source of the PU operation mode (Pr. 551)
⋅ Any of the PU connector, RS-485 terminals, or USB connector can be specified as the source of control in the PU
operation mode.
⋅ Set Pr.551 = "1" to use the RS-485 terminals to write parameters or send start and frequency commands in the PU
operation mode. Set Pr.551 = "3" to use the USB connector to do those in the PU operation mode.
CAUTION
⋅ The PU operation mode has a higher priority when Pr. 550 = "1" (NET mode RS-485 terminals) and Pr. 551 = "1" (PU mode RS-485
terminals). When the communication option is not fitted, therefore, the operation mode cannot be switched to Network operation
mode.
⋅ Changed setting value is valid when powering on or resetting the inverter.

Pr. 550 Pr. 551 Operation Mode of Control Source

Remarks
Setting Setting PU connector USB connector RS-485 terminals Communication option
1 × × PU operation mode *1 NET operation mode *2
0 2 (initial PU operation mode × × NET operation mode *2
value)
3 × PU operation mode × NET operation mode *2
Switching to NET
1 × PU operation mode *1 PU operation mode *1 ×
operation mode disabled
1 2 (initial PU operation mode NET operation mode NET operation mode ×
value)
3 × PU operation mode NET operation mode ×
1 × PU operation mode *1 PU operation mode *1 NET operation mode *2
× × NET operation mode *2 Communication option fitted
9999 2 (initial PU operation mode
Communication option
(initial value) NET operation mode NET operation mode ×
value) not fitted
Communication option
3 × PU operation mode NET operation mode ×
not fitted
*1 The Modbus-RTU protocol cannot be used in the PU operation mode. When using the Modbus-RTU protocol, set Pr. 551 to "2".
*2 When the communication option is not fitted, the operation mode cannot be switched to Network operation mode.

300
 Selection of operation mode and operation location

(3) Controllability through communication

Operation External/PU External/PU NET Operation
Condition Combined Combined NET Operation
Operation Mode PU External (when RS-485 (when
(Pr. 551 Operation Mode Operation communication
Location Operation Operation 1 Mode 2 terminals are
Setting) option is used) *7
Item (Pr. 79 = 3) (Pr. 79 = 4) used) *6
Run command
× × ×
(start)
Run command
Control by RS-485 communication from PU connector

*3 *3 *3
2 (stop)
(PU Running frequency
× × ×
connector) setting
Monitor
Parameter write *4 × *5 *4 *4 × *5
Parameter read
Inverter reset
Run command
× × × × ×
(start)
Run command
*3 *3 *3 *3 *3
(stop)
Running frequency
Except for 2 × × × × ×
setting
Monitor
Parameter write × *5 × *5 × *5 × *5 × *5
Parameter read
Inverter reset
Run command
× × ×
(start, stop)
Running frequency
1 × × ×
setting
Control by communication from

(RS-485
Monitor
terminals)
Parameter write *4 × *5 *4 *4 × *5
RS-485 terminals

Parameter read
Inverter reset
Run command
× × × × *1 ×
(start, stop)
Running frequency
× × × × *1 ×
setting
Except for 1
Monitor
Parameter write × *5 × *5 × *5 × *5 *4 × *5
Parameter read
Inverter reset × × × × *2 ×
Run command
× × ×
(start, stop)
Running frequency
3 × × ×
setting
Operation from the USB connector

(USB
Monitor
connector)
Parameter write *4 × *5 × *5 × *5 × *5
Parameter read
Inverter reset
Run command
4
× × × × ×
(start, stop)
Running frequency
× × × × ×
PARAMETERS

setting
Except for 3
Monitor
Parameter write × *5 × *5 × *5 × *5 × *5
Parameter read
Inverter reset
Run command
from communication option
Control by communication

× × × × × *1
(start, stop)
Running frequency
× × × × × *1
setting
⎯ Monitor
Parameter write × *5 × *5 × *5 × *5 × *5 *4

Parameter read
Inverter reset × × × × × *2

: Enabled, ×: Disabled, : Some are enabled

301
Selection of operation mode and operation location

Operation External/PU External/PU NET Operation

Condition Combined Combined NET Operation
Operation Mode PU External (when RS-485 (when
(Pr. 551 Operation Mode Operation communication
Location Operation Operation 1 Mode 2 terminals are
Setting) option is used) *7
Item (Pr. 79 = 3) (Pr. 79 = 4) used) *6
Inverter reset
external terminals
Control circuit

Run command
× × × *1
(start, stop)
⎯
Frequency setting × × × *1

: Enabled, ×: Disabled, : Some are enabled

*1 As set in Pr. 338 Communication operation command source and Pr. 339 Communication speed command source. (Refer to page 299)
*2 At occurrence of RS-485 communication error, the inverter cannot be reset from the computer.
*3 Enabled only when stopped by the PU. At a PU stop, PS is displayed on the operation panel. As set in Pr. 75 Reset selection/disconnected PU
detection/PU stop selection. (Refer to page 282)
*4 Some parameters may be write-disabled according to the Pr. 77 Parameter write selection setting and operating status. (Refer to page 284)
*5 Some parameters are write-enabled independently of the operation mode and command source presence/absence. When Pr. 77 = 2, write is
enabled. (Refer to page 55 for the parameter list)Parameter clear is disabled.
*6 When Pr. 550 NET mode operation command source selection = 1 (RS-485 terminals valid) or Pr. 550 NET mode operation command source selection =
9999 and the communication option is not fitted.
*7 When Pr. 550 NET mode operation command source selection = 0 (communication option valid) or Pr. 550 NET mode operation command source selection
= 9999 and the communication option is fitted.

(4) Operation at alarm occurrence

Operation External/PU External/PU NET Operation

NET Operation
Mode Combined Combined (when
Alarm PU External (when RS-485
Operation Operation Mode communication
Definition Condition Operation Operation terminals are
Mode 1 2 option is used)
(Pr. 551 setting) used) *5
(Pr. 79 = 3) (Pr. 79 = 4) *6

Inverter fault ⎯ Stop

PU 2 (PU connector) Stop/continued *1, 4
disconnection
of the PU Except for 2 Stop/continued *1
connector
Stop/
Communication 2 (PU connector) Continued Stop/continued Continued
continued
alarm of PU *2
*2
connector
Except for 2 Continued
Stop/
Communication 1 (RS-485 terminals) Continued Stop/continued Continued
continued *2
alarm of RS- *2
485 terminals Stop/continued
Except for 1 Continued Continued
*2

Stop/
Communication 3 (USB connector) Continued
continued
alarm of USB
*2
connector
Except for 3 Continued
Communication
alarm of Stop/continued
⎯ Continued Continued
communication *3
option

*1 Can be selected using Pr. 75 Reset selection/disconnected PU detection/PU stop selection

*2 Can be selected using Pr. 122 PU communication check time interval, Pr. 336 RS-485 communication check time interval or Pr. 548 USB communication
check time interval.
*3 As controlled by the communication option.
*4 In the PU jog operation mode, operation is always stopped when the PU is disconnected. Whether fault (E.PUE) occurrence is allowed or not is as
set in Pr. 75 Reset selection/disconnected PU detection/PU stop selection.
*5 When Pr. 550 NET mode operation command source selection = 1 (RS-485 terminals valid) or Pr. 550 NET mode operation command source selection =
9999 and the communication option is not fitted
*6 When Pr. 550 NET mode operation command source selection = 0 (communication option valid) or Pr. 550 NET mode operation command source selection
= 9999 and the communication option is fitted

302
 Selection of operation mode and operation location

(5) Selection of control source in network operation mode (Pr. 338, Pr. 339)
⋅ There are two control sources: operation command source, which controls the signals related to the inverter start
command and function selection, and speed command source, which controls signals related to frequency setting.
⋅ In Network operation mode, the commands from the external terminals and communication (RS-485 terminals or
communication option) are as listed below.
Pr. 338 Communication operation command
Operation 0: NET 1: External
source
Location Remarks
Selection Pr. 339 Communication speed command
0: NET 1:External 2:External 0: NET 1:External 2:External
source
Running frequency from
Fixed function NET ⎯ NET NET ⎯ NET
communication
(Terminal-
Terminal 2 ⎯ External ⎯ ⎯ External ⎯
equivalent
Terminal 4 ⎯ External ⎯ External
function)
Terminal 1 Compensation
Low speed operation com-
0 RL mand/remote setting clear NET External NET External
stop-on-contact selection 0 Pr. 59 = "0" (multi-
Middle-speed operation speeds)
1 RM command/remote set NET External NET External Pr. 59 = "1 , 2"
deceleration (remote)
Pr. 270 = "1 , 3"
High speed operation (stop-on-contact)
2 RH command/remote set NET External NET External
acceleration

3 RT Second function selection/

NET External Pr. 270 = "1 , 3"
Stop-on contact selection 1 (stop-on-contact)
4 AU Current input selection ⎯ Combined ⎯ Combined
5 JOG Jog operation selection ⎯ External
Selection of automatic restart
6 CS after instantaneous power External
failure
7 OH External thermal relay input External
8 REX Fifteen speed selection NET External NET External Pr. 59 = "0"
(multi-speeds)
9 X9 Third function selection NET External
Pr. 178 to Pr. 189 setting

PU operation external
12 X12 External
Selective function

interlock
External DC injection brake
13 X13 operation start NET External
14 X14 PID control valid terminal NET External NET External
Brake opening completion
15 BRI signal NET External
PU-external operation
16 X16 switchover External
Load pattern selection forward
17 X17 rotation reverse rotation boost NET External
18 X18 V/F switching NET External
Load torque high-speed fre-
19 X19 quency NET External
S-pattern acceleration/decel-
20 X20 eration C switchover NET External
22 X22 Orientation command NET External 4
23 LX Pre-excitation NET External
Output stop Combined External Pr. 79 ≠ "7"
PARAMETERS

24 MRS Pr. 79 = "7"

PU operation interlock External When X12 signal
is not assigned
25 STOP Start self-holding selection ⎯ External
26 MC Control mode switchover NET External
27 TL Torque limit selection NET External
Start-time tuning start external
28 X28 input NET External

303
Selection of operation mode and operation location

Pr. 338 Communication operation command

Operation 0: NET 1: External
source
Location Remarks
Selection Pr. 339 Communication speed command
0: NET 1:External 2:External 0: NET 1:External 2:External
source
42 X42 Torque bias selection 1 NET External
43 X43 Torque bias selection 2 NET External
44 X44 P/PI control switchover NET External
60 STF Forward rotation command NET External
61 STR Reverse rotation command NET External
Pr. 178 to Pr. 189 setting

62 RES Reset External

Selective function

63 PTC PID forward action switchover External

64 X64 PID forward action switchover NET External NET External
65 X65 PU-NET operation switchover External
External-NET operation
66 X66 switchover External
67 X67 Command source switchover External
Simple position pulse train
68 NP sign External
Simple position droop pulse
69 CLR clear External
Magnetic flux decay output
74 X74 shutoff NET External

[Explanation of table]
External : Control is valid only from external terminal signal.
NET : Control only from communication is valid
Combined : Control is valid from either of external terminal and communication.
⎯ : Control is invalid from either of external terminal and communication.
Compensation : Control by signal from external terminal is only valid when Pr. 28 Multi-speed input compensation selection = "1"
REMARKS
⋅ The command source of communication is as set in Pr. 550 and Pr. 551.
⋅ The Pr. 338 and Pr. 339 settings can be changed during operation when Pr. 77 = 2. Note that the setting change is reflected after
the inverter has stopped. Until the inverter has stopped, communication operation command source and communication speed
command source before the setting change are valid.

(6) Switching of command source by external terminal (X67)

⋅ In Network operation mode, the command source switching signal (X67) can be used to switch the start command
source and speed command source. This signal can be utilized to control the signal input from both the control
terminal and communication.
⋅ Set "67" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the X67 signal to the control terminal.
⋅ When the X67 signal is off, the start command source and speed command source are control terminal.
X67 Signal State Start Command Source Speed Command Source
No signal assignment
According to Pr. 338 According to Pr. 339
ON
OFF Command is valid only from control terminal signal.

REMARKS
⋅ The ON/OFF state of the X67 signal is reflected only during a stop. It is reflected after a stop when the terminal is switched
during operation.
⋅ When the X67 signal is off, a reset via communication is disabled.

CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 28 Multi-speed input compensation selection Refer to page 152.
Pr. 59 Remote function selection Refer to page 152.
Pr. 79 Operation mode selection Refer to page 290.

304
 Communication operation and setting

4.24 Communication operation and setting

Refer to
Purpose Parameter that must be Set
Page
Initial setting of computer link
Communication operation from PU connector Pr. 117 to Pr. 124
communication (PU connector)
310
Initial setting of computer link Pr. 331 to Pr. 337,
communication (RS-485 terminals) Pr. 341
Communication operation from RS-485
terminals Pr. 331, Pr. 332,
Modbus-RTU communication
Pr. 334, Pr. 343, 324
specifications
Pr. 549
Restrictions on parameter write through Communication EEPROM write
Pr. 342 311
communication selection
Communication using USB (FR Configurator) USB communication Pr. 547, Pr. 548 337

4.24.1 Wiring and configuration of PU connector

Using the PU connector, you can perform communication operation from a personal computer etc.
When the PU connector is connected with a personal, FA or other computer by a communication cable, a user program
can run and monitor the inverter or read and write to parameters.

(1) PU connector pin-outs

Pin Number Name Description

Earth (Ground)
1) SG
(connected to terminal 5)
2) ⎯ Operation panel power supply
Inverter 3) RDA Inverter receive+
(Receptacle side) 4) SDB Inverter send-
Front view
5) SDA Inverter send+
6) RDB Inverter receive-
8) Earth (Ground)
to 7) SG
(connected to terminal 5)
1) 8) ⎯ Operation panel power supply

CAUTION
⋅ Pins No. 2 and 8 provide power to the operation panel or parameter unit. Do not use these pins for RS-485 communication.
⋅ Do not connect the PU connector to the computer's LAN board, FAX modem socket or telephone modular connector. The
product could be damaged due to differences in electrical specifications. 4
PARAMETERS

305
Communication operation and setting

(2) PU connector communication system configuration and wiring

z System configuration
Station 0 Computer Station 0
Inverter Computer
RS-232C Inverter
Inverter
FR-DU07 connector
Operation PU RS-232C PU
RS-485 PU
panel connector cable Maximum connector
connector interface/ connector 15m
FR-ADP terminals
RS-232C-RS-485
(option) converter
RJ-45 connector 2) RJ-45
RJ-45 connector
RJ-45 connector 2) connector 2)
Communication cable 1) 2)
Communication cable 1) Communication cable 1)
z Connection with RS-485 computer
Inverter
Computer Side Terminals Cable connection and signal direction PU connector
Signal name Description Communication cable RS-485 terminal
RDA Receive data SDA
RDB Receive data SDB
SDA Send data RDA
SDB Send data RDB
RSA Request to send
RSB Request to send
*
CSA Clear to send
CSB Clear to send
0.2mm2 or more
SG Signal ground SG
FG Frame ground

* Make connections in accordance with the manual of the computer used. Fully check the terminal numbers of the computer since
they change with the model.

REMARKS
⋅ Refer to the following when fabricating the cable on the user side.
Commercially available product examples (as of January 2010)

Product Type Maker

SGLPEV-T (Cat5e/300m)
1) Communication cable Mitsubishi Cable Industries, Ltd.
24AWG × 4P *
2) RJ-45 connector 5-554720-3 Tyco Electronics
* Do not use pins No. 2, 8 of the 10- BASE-T cable.

CAUTION
When performing RS-485 communication with multiple inverters, use the RS-485 terminals. (Refer to page 308)

306
 Communication operation and setting

4.24.2 Wiring and arrangement of RS-485 terminals

(1) RS-485 terminal layout
Name Description
OPEN RDA1
Inverter receive+
(RXD1+)
RDB1
Terminating resistor switch Inverter receive-
(RXD1-)
Factory-set to "OPEN".
Set only the terminating resistor switch of the
RDA2 Inverter receive+
(RXD2+) (for branch)
100Ω remotest inverter to the "100Ω" position.
RDB2 Inverter receive-
(RXD2-) (for branch)
RDA1 RDB1 RDA2 RDB2 SDA1
RXD Inverter send+
(RXD1+)(RXD1-)(RXD2+)(RXD2-) (TXD1+)
SDB1
Inverter send-
(TXD1-)
SDA2 Inverter send+
SDA1 SDB1 SDA2 SDB2 (TXD2+) (for branch)
TXD (TXD1+)(TXD1-) (TXD2+) (TXD2-)
SDB2 Inverter send-
(TXD2-) (for branch)
P5S 5V
P5S SG P5S SG (VCC) Permissible load current 100mA
(VCC) (GND) (VCC) (GND) VCC
SG Earth (Ground)
(GND) (connected to terminal SD)

(2) Connection of RS-485 terminals and wires

Loosen the terminal screw and insert the cable into the terminal.
Screw size M2 Wire the stripped cable after twisting it to prevent it from
Tightening becoming loose. In addition, do not solder it.
0.22N•m to 0.25N•m
torque
Cable size 0.3mm2 to 0.75mm2
Small flat-blade screwdriver
Screwdriver
(Tip thickness: 0.4mm /tip width: 2.5mm) 5mm
Use a blade terminal as necessary.
CAUTION
Undertightening can cause signal loss or malfunction. Overtightening can cause a short circuit or malfunction due to damage to
the screw or unit.

REMARKS
Information on blade terminals
Commercially available products (as of January 2010)
zPhoenix Contact Co.,Ltd.
Terminal Screw Blade Terminal Model Blade terminal
Wire Size (mm2)
Size with insulation sleeve without insulation sleeve crimping tool 4
M2 0.3, 0.5 AI 0,5-6WH A 0,5-6 CRIMPFOX 6
zNICHIFU Co.,Ltd.
PARAMETERS

Terminal Screw Blade terminal product Blade terminal

Wire Size (mm2) Insulation product number
Size number crimping tool
M2 0.3 to 0.75 BT 0.75-7 VC 0.75 NH 67

Use shielded or twisted cables for connection to the control circuit terminals and run them away from the main and power circuits
(including the 200V relay sequence circuit).

When using the bar terminal (without insulation sleeve), use care so that the twisted wires do not come out.

307
Communication operation and setting

(3) RS-485 terminal system configuration

z Connection of a computer to the inverter (1:1 connection)
Computer Computer
Inverter Inverter
RS-485 RS-485
RS-485 terminals Maximum terminals
interface/ * RS-232C 15m *
terminals cable
Converter

Twisted pair cable Twisted pair cable

*Set the terminating resistor switch to the "100Ω" position.

z Combination of computer and multiple inverters (1:n connection)

Computer Station 0 Station 1 Station n
Inverter Inverter Inverter
RS-485 RS-485 RS-485
RS-485 terminals terminals terminals
interface terminals
* * *

*Set only the terminating resistor switch of the

Twisted pair cable remotest inverter to the "100Ω" position.

Computer Station 0 Station 1 Station n

RS-232C Inverter Inverter Inverter
converter
RS-485 RS-485 RS-485
Maximum terminals terminals terminals
RS-232C 15m
cable * * *
Converter

*Set only the terminating resistor switch of the

Twisted pair cable remotest inverter to the "100Ω" position.

308
 Communication operation and setting

(4) RS-485 terminal wiring method

z Wiring of one RS-485 computer and one inverter

Computer
RDA
RDB
SDA
SDB
RSA

+
+
-
-
RSB
*1 *2
CSA

SDB1
SDA1
RDB1
RDA1
CSB
SG SG
FG

z Wiring of one RS-485 computer and "n" inverters (several inverters)

Computer
RDA
RDB
SDA
SDB
RSA
+
+

+
+

+
+
+

+
-
-
-

-
-
*2
-

RSB
*1
CSA
SDB1
SDA1
SDB2
SDA2
RDB1
RDA1
RDB2
RDA2
SDB1
SDA1
SDB2
SDA2
RDB1
RDA1
RDB2
RDA2

SDB1
SDA1
RDB1
RDA1
CSB
SG SG SG SG SG SG
FG Station 0 Station 1 Station n

*1 Make connections in accordance with the manual of the computer used.

Fully check the terminal numbers of the computer since they change with the model.
*2 For the inverter farthest from the computer, set the terminating resistor switch to ON (100Ω side).

REMARKS
For branching, connect the wires as shown below.

+ - + - RXD + - + - RXD

To computer send To receiving terminal

+ - + - + - + - of the next inverter
TXD TXD

To receiving terminal
To computer receive
SG SG VCC SG SG VCC
of the next inverter
To next inverter
To computer ground To earth (ground)
terminal

(5) 2-wire type connection 4

If the computer is 2-wire type, pass wires across receiving terminals and transmission terminals of the RS-485
terminals to enable 2-wire type connection with the inverter.
PARAMETERS

Computer Inverter
TXD+

Transmission TXD-
enable RXD+
RXD-
Reception Pass a wire
enable SG SG

REMARKS
⋅ A program should be created so that transmission is disabled (receiving state) when the computer is not sending and reception
is disabled (sending state) during sending to prevent the computer from receiving its own data.

309
Communication operation and setting

4.24.3 Initial settings and specifications of RS-485 communication

(Pr. 117 to Pr. 124, Pr. 331 to Pr. 337, Pr. 341, Pr. 549)

Used to perform required settings for communication between the inverter and personal computer.
There are two different communications: communication using the PU connector of the inverter and
communication using the RS-485 terminals.
You can perform parameter setting, monitor, etc. from the PU connector or RS-485 terminals of the inverter
using the Mitsubishi inverter protocol (computer link communication).
To make communication between the personal computer and inverter, initialization of the communication
specifications must be made to the inverter.
Data communication cannot be made if the initial settings are not made or there is any setting error.

[PU connector communication related parameter]

Parameter
Name Initial Value Setting Range Description
Number
Specify the inverter station number.
PU communication station Set the inverter station numbers when two or
117 0 0 to 31
number more inverters are connected to one
personal computer.
Set the communication speed.
The setting value × 100 equals the
118 PU communication speed 192 48, 96, 192, 384 communication speed.
For example, the communication speed is
19200bps when the setting value is "192".
Stop bit length Data length
0 1 bit
PU communication stop bit 8 bits
119 1 1 2 bits
length
10 1 bit
7 bits
11 2 bits
0 Without parity check
PU communication parity
120 2 1 With odd parity check
check
2 With even parity check
Set the permissible number of retries at
occurrence of a data receive error. If the
0 to 10
Number of PU number of consecutive errors exceeds the
121 1
communication retries permissible value, the inverter trips.
If a communication error occurs, the inverter
9999
will not trip.
0 No PU connector communication
Set the interval of communication check
(signal loss detection) time.
PU communication check 0.1 to 999.8s If a no-communication state persists for
122 9999
time interval longer than the permissible time, the inverter
trips.
No communication check (signal loss
9999
detection)
Set the waiting time between data
PU communication waiting 0 to 150ms
123 9999 transmission to the inverter and response.
time setting
9999 Set with communication data.
0 Without CR/LF
PU communication CR/LF
124 1 1 With CR
selection
2 With CR/LF

310
 Communication operation and setting

[RS-485 terminal communication related parameter]

Parameter Initial
Name Setting Range Description
Number Value
RS-485 communication station 0 to 31 (0 to 247) Set the inverter station number. (same
331 0
number *1 specifications as Pr. 117)
3, 6, 12, 24, 48, Used to select the communication speed.
332 RS-485 communication speed 96
96, 192, 384 (same specifications as Pr. 118)
RS-485 communication stop bit Select stop bit length and data length. (same
333 *2 1 0, 1, 10, 11
length specifications as Pr. 119)
RS-485 communication parity Select the parity check specifications. (same
334 2 0, 1, 2
check selection specifications as Pr. 120)
Set the permissible number of retries at
RS-485 communication retry
335 *3 1 0 to 10, 9999 occurrence of a data receive error.
count
(same specifications as Pr. 121)
RS-485 communication can be made, but the
0
inverter trips in the NET operation mode.
Set the interval of communication check
RS-485 communication check
336 *3 0s 0.1 to 999.8s (signal loss detection) time. (same
time interval
specifications as Pr. 122)
No communication check (signal loss
9999
detection)
Set the waiting time between data
RS-485 communication waiting 0 to 150ms,
337 *3 9999 transmission to the inverter and response.
time setting 9999
(same specifications as Pr. 123)
RS-485 communication CR/LF Select presence/absence of CR/LF.
341 *3 1 0, 1, 2
selection (same specifications as Pr. 124)

0 Mitsubishi inverter (computer link) protocol

549 Protocol selection 0
1 Modbus-RTU protocol *4

*1 When "1" (Modbus-RTU protocol) is set in Pr. 549, the setting range within parenthesis is applied.
*2 For the Modbus-RTU protocol, the data length is fixed to 8 bits and the stop bit depends on the Pr. 334 setting. (Refer to page 324)
*3 Invalid during the Modbus-RTU protocol.
*4 The Modbus-RTU protocol is valid for only communication from the RS-485 terminals.

CAUTION
⋅ If communication is made without Pr. 336 RS-485 communication check time interval being changed from "0" (initial value), monitor,
parameter read, etc. can be performed, but the inverter results in a fault as soon as it is switched to the NET operation mode. If
the operation mode at power on is the Network operation mode, a communication fault (E.SER) occurs after first
communication.
When performing operation or parameter write through communication, set "9999" or a greater value to Pr. 336. (The setting
depends on the computer side program.) (Refer to page 316)
⋅ Always reset the inverter after making the initial settings of the parameters. After you have changed the communication-related
parameters, communication cannot be made until the inverter is reset.

4.24.4 Communication EEPROM write selection (Pr. 342)

When parameter write is performed from PU connector, RS-485 terminal, USB communication, and
communication option connected to the inverter, parameter's storage device can be changed from EEPROM + 4
RAM to only RAM. Set this parameter when frequent parameter changes are required.
PARAMETERS

Parameter Setting
Name Initial Value Description
Number Range
Parameter values written by communication are
0
Communication EEPROM write written to the EEPROM and RAM.
342 0
selection Parameter values written by communication
1
are written to the RAM.
The above parameters can be set any time when the communication option is connected. (Refer to page 285)

⋅ When changing the parameter values frequently, set "1" in Pr. 342 to write them to the RAM. The life of the EEPROM will
be shorter if parameter write is performed frequently with the setting unchanged from "0 (initial value)" (EEPROM write).
REMARKS
⋅ When Pr. 342 is set to "1" (only RAM write), the new values of the parameters will be cleared at power supply-off of the inverter.
Therefore, the parameter values available when power is switched on again are the values stored in EEPROM previously.

311
Communication operation and setting

4.24.5 Mitsubishi inverter protocol (computer link communication)

You can perform parameter setting, monitor, etc. from the PU connector or RS-485 terminals of the inverter using
the Mitsubishi inverter protocol (computer link communication).

(1) Communication specifications

⋅ The communication specifications are given below.
Related
Item Description Parameters
Communication protocol Mitsubishi protocol (computer link) Pr. 551
Conforming standard EIA-485 (RS-485) ⎯
Pr. 117
Number of inverters connected 1:N (maximum 32 units), setting is 0 to 31 stations
Pr. 331
Communication PU connector Selected among 4800/9600/19200/38400bps Pr. 118
speed RS-485 terminal Selected among 300/600/1200/2400/4800/9600/19200/38400bps Pr. 332
Control protocol Asynchronous system ⎯
Communication method Half-duplex system ⎯
Pr. 119
Character system ASCII (7 bits or 8 bits can be selected)
Pr. 333
Start bit 1bit ⎯
Pr. 119
Stop bit length 1 bit or 2 bits can be selected
Communication Pr. 333
specifications Pr. 120
Parity check Check (with even or odd parity) or no check can be selected
Pr. 334
Error check Sum code check ⎯
Pr. 124
Terminator CR/LF (presence or absence can be selected)
Pr. 341
Pr. 123
Waiting time setting Selectable between presence and absence
Pr. 337

(2) Communication procedure

⋅ Data communication between the computer and
When data is read
Computer inverter is made in the following procedure.
(Data flow)
*2 1) Request data is sent from the computer to the
Inverter 1) 4) 5) inverter. (The inverter will not send data unless
Time
Inverter 2) 3) requested.)
*1 2) After waiting for the waiting time
(Data flow)
When data is written 3) The inverter sends reply data to the computer in
Computer
response to the computer request.
4) After having waited for the time taken for inverter
processing
5) Answer from computer in response to reply data
3) is sent. (Even if 5) is not sent, subsequent
communication is made properly.)
*1 If a data error is detected and a retry must be made, execute retry operation with the user program. The inverter comes to trip if the number of
consecutive retries exceeds the parameter setting.
*2 On receipt of a data error occurrence, the inverter returns "reply data 3)" to the computer again. The inverter comes to trip if the number of
consecutive data errors reaches or exceeds the parameter setting.

312
 Communication operation and setting

(3) Communication operation presence/absence and data format types

⋅ Data communication between the computer and inverter is made in ASCII code (hexadecimal code).
⋅ Communication operation presence/absence and data format types are as follows:
Run Running Parameter Inverter Parameter
Symbol Operation Monitor
Command Frequency Write Reset Read
Communication request is sent to the
A
1) inverter in accordance with the user A A A B B
A’
program in the computer.
2) Inverter data processing time Present Present Present Absent Present Present
No error E
Reply data from the *1
C C C C *2 E
(Request accepted) E’
3) inverter (Data 1) is
checked for error) With error. D D D D *2 D D
(Request rejected)
4) Computer processing delay time 10ms or more
No error *1 Absent Absent
Answer from computer in (No inverter Absent Absent Absent Absent
(C) (C)
response to reply data 3) processing)
5)
(Data 3) is checked for With error
error) (Inverter re- Absent Absent Absent Absent F F
outputs 3))
*1 In the communication request data from the computer to the inverter, 10ms or more is also required after "no data error (ACK)". (Refer to page
314)
*2 The inverter response to the inverter reset request can be selected. (Refer to page 319)
1)Communication request data from the computer to the inverter
Number of Characters
Format
1 2 3 4 5 6 7 8 9 10 11 12 13
A ENQ Inverter station Waiting
Instruction code Data Sum check *4
(Data write) *1 number *2 time *3
A' ENQ Inverter station Waiting
Instruction code Data Sum check *4
(Data write) *1 number *2 time *3
B ENQ Inverter station Waiting
Instruction code Sum check *4
(Data read) *1 number *2 time *3
3)Reply data from the inverter to the computer
⋅ When data is written
Number of Characters
Format
1 2 3 4 5
C ACK Inverter station
*4
(No data error detected) *1 number *2
D NAK Inverter station Error *4
(Data error detected) *1 number *2 Code
⋅ When data is read
Number of Characters
Format
1 2 3 4 5 6 7 8 9 10 11
E STX Inverter station ETX
Read data Sum check *4
(No data error detected) *1 number *2 *1
E' STX Inverter station ETX
(No data error detected) *1 number *2
Read data
*1
Sum check *4
4
D NAK Inverter station Error
*4
(Data error detected) *1 number *2 Code
PARAMETERS

5)Send data from the computer to the inverter during data read
Number of Characters
Format
1 2 3 4
C ACK Inverter station *4
(No data error detected) *1 number *2
F NAK Inverter station
*4
(Data error detected) *1 number *2
*1 Indicate a control code
*2 Specify the inverter station numbers between H00 and H1F (stations 0 to 31) in hexadecimal.
*3 When Pr. 123, Pr. 337 (waiting time setting) ≠ "9999", create the communication request data without "waiting time" in the data format. (The number
of characters decreases by 1.)
*4 CR, LF code
When data is transmitted from the computer to the inverter, CR (carriage return) and LF (line feed) codes are automatically set at the end of a data
group on some computers. In this case, setting must also be made on the inverter according to the computer. Whether the CR and LF codes will
be present or absent can be selected using Pr. 124 or Pr. 341 (CR/LF selection).

313
Communication operation and setting

(4) Data definitions

1) Control codes
Signal Name ASCII Code Description
STX H02 Start Of Text (start of data)
ETX H03 End Of Text (end of data)
ENQ H05 Enquiry (communication request)
ACK H06 Acknowledge (no data error detected)
LF H0A Line Feed
CR H0D Carriage Return
NAK H15 Negative Acknowledge (data error detected)
2) Inverter station number
Specify the station number of the inverter which communicates with the computer.
3) Instruction code
Specify the processing request, e.g. operation or monitoring, given by the computer to the inverter. Hence, the
inverter can be run and monitored in various ways by specifying the instruction code as appropriate. (Refer to page
439)
4) Data
Indicates the data such as frequency and parameters transferred to and from the inverter. The definitions and
ranges of set data are determined in accordance with the instruction codes. (Refer to page 439)
5) Waiting time
Specify the waiting time between the receipt of data at the inverter from the computer and the transmission of
reply data. Set the waiting time in accordance with the response time of the computer between 0 and 150ms in
10ms increments (e.g. 1 = 10ms, 2 = 20ms).

Computer Inverter data processing time

= Waiting time + data check time
Inverter (setting 10ms) (About 10 to 30ms,
which depends on the
Inverter
instruction code)
Computer

REMARKS
⋅ When Pr. 123, Pr. 337 (waiting time setting) ≠ "9999", create the communication request data without "waiting time" in the data
format. (The number of characters decreases by 1.)
⋅ The data check time changes depending on the instruction code. (Refer to page 315)

6) Sum check code

The sum check code is 2-digit ASCII (hexadecimal) representing the lower 1 byte (8 bits) of the sum (binary)
derived from the checked ASCII data
(Example 1) Sum
*Waiting

Instruction
ENQ Station code Data check
time

Computer Inverter code

number
0 1 E 1 1 0 7 A D F 4 Binary code
ASCII Code H05 H30 H31 H45 H31 H31 H30 H37 H41 H44 H46 H34

H30 + H31+ H45 + H31+ H31+H30 + H37+ H41+ H44

= H1 F4
Sum
* When the Pr. 123 Waiting time setting "9999", create the communication request
data without "waiting time" in the data format. (The number of characters decreases by 1.)

(Example 2) Sum
Data read
STX Station ETX
check
Inverter Computer number code
0 1 1 7 7 0 3 0 Binary code
ASCII Code H02 H30 H31 H31 H37 H37 H30 H03 H33 H30

H30 + H31+ H31 + H37+ H37+H30

= H130
Sum

314
 Communication operation and setting

7) Error Code
If any error is found in the data received by the inverter, its definition is sent back to the computer together with the
NAK code.
Error
Error Item Error Description Inverter Operation
Code
The number of errors consecutively detected in communication
H0 Computer NAK error request data from the computer is greater than allowed number of
retries.
H1 Parity error The parity check result does not match the specified parity.
Brought to trip if error
The sum check code in the computer does not match that of the
H2 Sum check error occurs continuously
data received by the inverter.
more than the allowable
The data received by the inverter has a grammatical mistake.
number of retries.
H3 Protocol error Alternatively, data receive is not completed within the (E.PUE/E.SER)
predetermined time. CR or LF is not as set in the parameter.
H4 Framing error The stop bit length differs from the initial setting.
New data has been sent by the computer before the inverter
H5 Overrun error
completes receiving the preceding data.
H6 ⎯ ⎯ ⎯
Does not accept
The character received is invalid (other than 0 to 9, A to F, control
H7 Character error received data but is not
code).
brought to trip.
H8 ⎯ ⎯ ⎯
H9 ⎯ ⎯ ⎯
Parameter write was attempted in other than the computer link
HA Mode error operation mode, when operation command source is not selected
or during inverter operation. Does not accept
received data but is not
HB Instruction code error The specified command does not exist.
brought to trip.
Invalid data has been specified for parameter write, frequency
HC Data range error
setting, etc.
HD ⎯ ⎯ ⎯
HE ⎯ ⎯ ⎯
HF ⎯ ⎯ ⎯

(5) Response time

Data sending time (refer to the following formula)
Inverter data processing time Waiting time Data check time
Computer (setting 10ms) (depends on the
instruction code (see the
Inverter following table))
Time
Inverter 10ms or more necessary
Computer Data sending time (refer to the following formula)

[Formula for data sending time]

1 Number of data Communication specifications
Communication × characters × (total number of bits) = Data send time (s)
speed (bps) (Refer to page 313) (See below.) 4
Communication specifications Data check time
PARAMETERS

Number of
Name Item Check Time
Bits
1 bit Various monitors, run command,
Stop bit length < 12ms
2 bits frequency setting (RAM)
7 bits Parameter read/write, frequency setting
Data length < 30ms
8 bits (EEPROM)
Yes 1 bit Parameter clear/all clear < 5s
Parity check
No 0 Reset command No answer
In addition to the above, 1 start bit is necessary.
Minimum number of total bits....... 9 bits
Maximum number of total bits...... 12 bits

315
Communication operation and setting

(6) Retry count setting (Pr. 121, Pr. 335)

⋅ Set the permissible number of retries at occurrence of a data receive error. (Refer to page 315 for data receive error
for retry)
⋅ When data receive errors occur consecutively and exceed the permissible number of retries set, an inverter trips
(E.PUE) and a motor stops.
⋅ When "9999" is set, the inverter will not trip even if data receive error occurs but an alarm output signal (LF) is output.
For the terminal used for the LF signal output, assign the function by setting "98 (positive logic) or 198 (negative
logic)" in any of Pr. 190 to Pr. 196 (output terminal function selection).

Example: PU connector communication, Pr. 121 = "1" (initial value)

Fault (E.PUE)

ENQ

ENQ
Computer Inverter Wrong Wrong
ACK

NAK

NAK
Inverter Computer

Reception error Reception error

ALM ON

Example: PU connector communication, Pr. 121 = "9999"

ENQ

ENQ

ENQ
Computer Inverter Wrong Wrong Normal
ACK

NAK

NAK

ACK
Inverter Computer

Reception error Reception error

LF OFF ON ON

ALM OFF

(7) Signal loss detection (Pr. 122, Pr. 336 RS-485 communication check time interval)
⋅ If a signal loss (communication stop) is detected between the inverter and computer as a result of a signal loss
detection, a communication fault (PU connector communication: E.PUE, RS-485 terminal communication: E.SER)
occurs and the inverter trips.
⋅ When the setting is "9999", communication check (signal loss detection) is not made.
⋅ When the setting is "0", communication from the PU connector cannot be performed. For communication via the RS-
485 terminals, monitor, parameter read, etc. can be performed, but a communication fault (E.SER) occurs as soon as
the inverter is switched to Network operation mode.
⋅ A signal loss detection is made when the setting is any of "0.1s" to "999.8s". To make a signal loss detection, it is
necessary to send data (control code refer to page 314) from the computer within the communication check time
interval. (The send data has nothing to do with the station number)
⋅ Communication check is started at the first communication in the operation mode having the operation source (PU
operation mode for PU connector communication in the initial setting or Network operation mode for RS-485 terminal
communication).

Example: PU connector communication, Pr. 122 = "0.1 to 999.8s"

Operation Mode External PU

ENQ

Computer Inverter
Inverter Computer

Fault (E.PUE)
Check start
Pr.122
Communication
check counter
Time

ALM OFF ON

316
 Communication operation and setting

(8) Instructions for the program

1) When data from the computer has any error, the inverter does not accept that data. Hence, in the user program,
always insert a retry program for data error.
2) All data communication, e.g. run command or monitoring, are started when the computer gives a communication
request. The inverter does not return any data without the computer's request. Hence, design the program so that
the computer gives a data read request for monitoring, etc. as required.
3) Program example
To change the operation mode to computer link operation

Programming example of Microsoft® Visual C++® (Ver.6.0)

#include <stdio.h>
#include <windows.h>

void main(void){
HANDLE hCom; //Communication handle
DCB hDcb; //Structure for communication setting
COMMTIMEOUTS hTim; // Structure for time out setting

char szTx[0x10]; // Send buffer

char szRx[0x10]; // Receive buffer
char szCommand[0x10];// Command
int nTx,nRx; // For buffer size storing
int nSum; // For sum code calculation
BOOL bRet;
int nRet;
int i;

//∗∗∗∗ Opens COM1 port∗∗∗∗

hCom = CreateFile ("COM1", (GENERIC_READ | GENERIC_WRITE), 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hCom != NULL) {
//∗∗∗∗ Makes a communication setting of COM1 port∗∗∗∗
GetCommState(hCom,&hDcb); // Retrieves current communication information
hDcb.DCBlength = sizeof(DCB); // Structure size setting
hDcb.BaudRate = 19200; // Communication speed=19200bps
hDcb.ByteSize = 8; // Data length=8bit
hDcb.Parity = 2; // Even parity
hDcb.StopBits = 2; // Stop bit=2bit
bRet = SetCommState(hCom,&hDcb); // Sets the changed communication data
if (bRet == TRUE) {
//∗∗∗∗ Makes a time out setting of COM1 port∗∗∗∗
Get CommTimeouts(hCom,&hTim); // Obtains the current time out value
hTim.WriteTotalTimeoutConstant = 1000; // Write time out 1s
hTim.ReadTotalTimeoutConstant = 1000; // Read time out 1s
SetCommTimeouts(hCom,&hTim); // Changed time out value setting
//∗∗∗∗ Sets the command to switch the operation mode of the station 1 inverter to the Network operation mode ∗∗∗∗
sprintf(szCommand,"01FB10000"); // Send data (NET operation write)
nTx = strlen(szCommand); //Send data size
//∗∗∗∗ Generates sum code∗∗∗∗
nSum = 0; // Initialization of sum data
for (i = 0;i < nTx;i++) {
nSum += szCommand[i]; // Calculates sum code
nSum &= (0xff); // Masks data
}

//∗∗∗∗ Generates send data∗∗∗∗

memset(szTx,0,sizeof(szTx)); // Initialization of send buffer
memset(szRx,0,sizeof(szRx)); // Initialization of receive buffer
sprintf(szTx,"\5%s%02X",szCommand,nSum);// ENQ code+send data+sum code
4
nTx = 1 + nTx + 2; // Number of ENQ code+number of send data+number of sum code

nRet = WriteFile(hCom,szTx,nTx,&nTx,NULL);
PARAMETERS

//∗∗∗∗ Sending ∗∗∗∗

if(nRet != 0) {
nRet = ReadFile(hCom,szRx,sizeof(szRx),&nRx,NULL);
//∗∗∗∗ Receiving ∗∗∗∗
if(nRet != 0) {
//∗∗∗∗ Displays the receive data ∗∗∗∗
for(i = 0;i < nRx;i++) {
printf("%02X ",(BYTE)szRx[i]);// Consol output of receive data
// Displays ASCII coder in hexadecimal. Displays 30 when "0"
}
printf("\n\r");
}
}
}
CloseHandle(hCom); // Close communication port
}
}

317
Communication operation and setting

General flowchart

Port open

Communication setting

Time out setting

Send data processing

Data setting
Sum code calculation
Data transmission

Receive data waiting

Receive data processing

Data retrieval
Screen display

CAUTION
Always set the communication check time interval before starting operation to prevent hazardous conditions.
Data communication is not started automatically but is made only once when the computer provides a
communication request. If communication is disabled during operation due to signal loss etc., the inverter cannot
be stopped. When the communication check time interval has elapsed, the inverter will come to a trip (E.PUE,
E.SER). The inverter can be coasted to a stop by switching on its RES signal or by switching power off.
If communication is broken due to signal loss, computer fault etc., the inverter does not detect such a fault. This
should be fully noted.

318
 Communication operation and setting

(9) Setting items and set data

After completion of parameter setting, set the instruction codes and data then start communication from the computer
to allow various types of operation control and monitoring.
Number of
Read/ Instruction
No. Item Data Description Data Digits
Write Code
(format)
H0000: Network operation 4 digits
Read H7B
H0001: External operation (B.E/D)
1 Operation mode
H0002: PU operation 4 digits
Write HFB
(RS-485 communication operation via PU connector) (A,C/D)
Output H0000 to HFFFF: Output frequency in 0.01Hz increments
4 digits
frequency/ Read H6F Speed in 1r/min increments (when Pr. 37 = 1 to 9998 or Pr. 144 = 2 to
(B.E/D)
speed 10, 102 to 110)
Output 4 digits
Read H70 H0000 to HFFFF: Output current (hexadecimal) in 0.01A increments
current (B.E/D)
Output 4 digits
Read H71 H0000 to HFFFF: Output voltage (hexadecimal) in 0.1V increments
voltage (B.E/D)
Special 4 digits
Read H72 H0000 to HFFFF: Monitor data selected in instruction code HF3
monitor (B.E/D)
2digits
Special Read H73
H01 to H3C: Monitor selection data (B.E'/D)
Monitor

monitor
2 Refer to the special monitor No. table (page 321) 2digits
selection No. Write HF3
(A',C/D)
H0000 to HFFFF: Two most recent fault records
b15 b8 b7 b0
H74 Second fault in past Latest fault

H74 to H75 Fourth fault in past Third fault in past 4 digits

Fault record Read
H77 (B.E/D)
H76 Sixth fault in past Fifth fault in past

H77 Eighth fault in past Seventh fault in past

Refer to the fault data table (page 322)

Run command 4 digits
Write HF9 You can set the control input commands such as the forward
(extended) (A,C/D)
3 rotation signal (STF) and reverse rotation signal (STR). (Refer to
2digits
Run command Write HFA page 322 for details)
(A',C/D)
Inverter status
4 digits
monitor Read H79 You can monitor the status of the output signals such as forward
(B.E/D)
4 (extended) rotation, reverse rotation and inverter running (RUN). (Refer to page
Inverter status 323 for details) 2digits
Read H7A
monitor (B.E'/D)
Set frequency Read the set frequency/speed from the RAM or EEPROM.
H6D
(RAM) H0000 to HFFFF: Set frequency in 0.01Hz increments 4 digits
Read
Set frequency Speed in 1r/min increments (When Pr. 37 = 1 to 9998 or Pr. 144 = 2 (B.E/D)
H6E
(EEPROM) to 10, 102 to 110) 4
5 Set frequency Write the set frequency/speed into the RAM or EEPROM.
HED H0000 to H9C40 (0 to 400.00Hz) : frequency in 0.01Hz increments
(RAM)
H0000 to H270E (0 to 9998) : speed in r/min increments (when Pr. 4 digits
PARAMETERS

Write
Set frequency 37 = 1 to 9998 or Pr. 144 = 2 to 10, 102 to 110) (A,C/D)
HEE ⋅ To change the running frequency consecutively, write data to the
(RAM, EEPROM)
inverter RAM. (Instruction code: HED)
H9696: Resets the inverter.
4 digits
⋅ As the inverter is reset at start of communication by the computer,
(A,C/D)
the inverter cannot send reply data back to the computer.
6 Inverter reset Write HFD
H9966: Resets the inverter.
4 digits
⋅ When data is sent normally, ACK is returned to the computer and
(A,D)
then the inverter is reset.
Faults history 4 digits
7 Write HF4 H9696: Clears the faults history as a batch
batch clear (A,C/D)
Refer to page 313 for data formats (A, A', B, B', C, D)

319
Communication operation and setting

Number of
Read/ Instruction
No. Item Data Description Data Digits
Write Code
(format)
All parameters return to the initial values.
Whether to clear communication parameters or not can be selected
according to data. ( : clear, ×: not clear)
Refer to page 439 for parameter clear, all clear, and communication
parameters.
Communication
Clear type Data
parameters
H9696
Parameter clear Parameter clear
H5A5A × 4 digits
8 All parameter Write HFC
H9966 (A,C/D)
clear All parameter clear
H55AA ×

When clear is executed for H9696 or H9966, communication-related

parameter settings also return to the initial values. When resuming
operation, set the parameters again.
Executing clear will clear the instruction code HEC, HF3, and HFF
settings.
Only H9966 and H55AA (all parameter clear) are valid during the
password lock.
H00 to Refer to the instruction code (page 439) and write and/or read the 4 digits
9 Read
H63 values as required. (B.E/D)
Parameters
H80 to When setting Pr. 100 and later, link parameter extended setting must 4 digits
10 Write be set.
HE3 (A,C/D)
2digits
Read H7F Parameter description is changed according to the H00 to H09
Link parameter (B.E'/D)
11 setting.
extended setting 2digits
Write HFF For details of the setting, refer to the instruction code (page 439).
(A',C/D)
When setting the calibration parameters *1
H00:Frequency *2 2digits
Second Read H6C
H01: Parameter-set analog value (B.E'/D)
parameter
12 changing H02: Analog value input from terminal
*1 Refer to the list of calibration parameters on the next page for calibration
(instruction code
parameters. 2digits
HFF=1, 9) Write HEC
*2 The gain frequency can also be written using Pr. 125 (instruction code (A',C/D)
H99) or Pr. 126 (instruction code H9A).
Refer to page 313 for data formats (A, A', B, B', C, D)

REMARKS
⋅ Set 65520 (HFFF0) as a parameter value "8888" and 65535 (HFFFF) as "9999".
⋅ For the instruction codes HFF, HEC and HF3, their values are held once written but cleared to zero when an inverter reset or all
clear is performed.
Example) When reading the C3 (Pr. 902) and C6 (Pr. 904) settings from the inverter of station 0
Computer Send Data Inverter Send Data Description
1) ENQ 00 FF 0 01 82 ACK 00 Set "H01" in the extended link parameter.
2) ENQ 00 EC 0 01 7E ACK 00 Set "H01" in second parameter changing.
3) ENQ 00 5E 0 0F STX 00 0000 ETX 25 C3 (Pr. 902) is read. 0% is read.
4) ENQ 00 60 0 FB STX 00 0000 ETX 25 C6 (Pr. 904) is read. 0% is read.
To read/write C3 (Pr. 902) and C6 (Pr. 904) after inverter reset or parameter clear, execute from 1) again.

320
 Communication operation and setting

List of calibration parameters

Instruction Instruction Instruction
code code code
Para Para Para

Extended

Extended

Extended
Name Name Name
meter meter meter

Write

Write

Write
Read

Read

Read
C2 Terminal 2 frequency C13 Terminal 1 bias Terminal 4 bias
5E DE 1 11 91 9 C38
(902) setting bias frequency (917) frequency (speed) command (torque/ 20 A0 9
(932)
C3 Terminal 2 frequency C14 Terminal 1 gain magnetic flux)
5E DE 1 12 92 9
(902) setting bias (918) frequency (speed) C39 Terminal 4 bias
20 A0 9
125 Terminal 2 frequency C15 Terminal 1 gain (932) (torque/magnetic flux)
5F DF 1 12 92 9
(903) setting gain frequency (918) (speed) Terminal 4 gain
C40
C4 Terminal 2 frequency Terminal 1 bias command (torque/ 21 A1 9
5F DF 1 C16 (933)
(903) setting gain command (torque/ 13 93 9 magnetic flux)
(919)
C5 Terminal 4 frequency magnetic flux) C41 Terminal 4 gain
60 E0 1 21 A1 9
(904) setting bias frequency C17 Terminal 1 bias (933) (torque/magnetic flux)
13 93 9
C6 Terminal 4 frequency (919) (torque/magnetic flux)
60 E0 1
(904) setting bias Terminal 1 gain
C18
126 Terminal 4 frequency command (torque/ 14 94 9
61 E1 1 (920)
(905) setting gain frequency magnetic flux)
C7 Terminal 4 frequency C19 Terminal 1 gain
61 E1 1 14 94 9
(905) setting gain (920) (torque/magnetic flux)
C12 Terminal 1 bias
11 91 9
(917) frequency (speed)

[Special monitor selection No.]

Refer to page 229 for details of the monitor description.
Data Description Increments Data Description Increments Data Description Increments
H01 Output frequency/speed *6 0.01Hz/1 H10 Output terminal status *2 ⎯ H35 PID measured value 0.1%
H02 Output current 0.01A H11 Load meter 0.1% H36 PID deviation value 0.1%
H03 Output voltage 0.1V H12 Motor excitation current 0.01A Option input terminal
H3A ⎯
Frequency setting/ H13 Position pulse ⎯ status1 *3
H05 0.01Hz/1
speed setting *6 Cumulative energization Option input terminal
H14 1h H3B ⎯
H06 Running speed 1r/min time status2 *4
H07 Motor torque 0.1% H16 Orientation status ⎯ Option output terminal
H3C ⎯
H08 Converter output voltage 0.1V H17 Actual operation time 1h status *5
Electronic thermal relay H18 Motor load factor 0.1% H41
H0A 0.1% Output power *7 0.1kW
function load factor H19 Cumulative power 1kWh
H42 Cumulative regenerative
0.01A/ H20 Torque command 0.1% 1kWh
H0B Output current peak value power
0.1A *1 H21 Torque current command 0.1%
Converter output H22 Motor output 0.01kW
H0C 0.1V
voltage peak value H23 Feedback pulse ⎯
H0D Input power 0.01kW H32 Power saving effect Variable
H0E Output power 0.01kW H33 Cumulative saving power Variable
H0F Input terminal status *1 ⎯ H34 PID set point 0.1%
..............Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.
*1 Input terminal monitor details
b15 b0
⎯ ⎯ ⎯ ⎯ CS RES STOP MRS JOG RH RM RL RT AU STR STF 4
*2 Output terminal monitor details
b15 b0
PARAMETERS

⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ABC2 ABC1 FU OL IPF SU RUN

*3 Details of option input terminal monitor 1 (input terminal status of FR-A7AX)-all terminals are off when an option is not fitted
b15 b0
X15 X14 X13 X12 X11 X10 X9 X8 X7 X6 X5 X4 X3 X2 X1 X0
*4 Details of option input terminal monitor 2 (input terminal status of FR-A7AX)-all terminals are off when an option is not fitted
b15 b0
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ DY
*5 Details of option output terminal monitor (output terminal status of FR-A7AY/A7AR)-all terminals are off when an option is not fitted
b15 b0
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ RA3 RA2 RA1 Y6 Y5 Y4 Y3 Y2 Y1 Y0
*6 When Pr. 37 = "1 to 9998" or Pr. 144 = "2 to 10, 102 to 110," the unit is an integral value (one increment). (Refer to page 227)
*7 Regenerative display is not available. Regenerative display is only available on the operation panel (FR-DU07).

321
Communication operation and setting

[Fault data]
Refer to page 383 for details of fault description.
Data Description Data Description Data Description
H00 No alarm HA3 E.OP3 HD7 E.MB3 Fault record display example (instruction code H74)
H10 E.OC1 HB0 E.PE HD8 E.MB4 For read data H30A0
(Previous fault ...... THT)
H11 E.OC2 HB1 E.PUE HD9 E.MB5 b15 b8 b7 b0
(Latest fault ...... OPT)
H12 E.OC3 HB2 E.RET HDA E.MB6 0 0 1 1 0 0 0 0 1 0 1 0 0 0 0 0
H20 E.OV1 HB3 E.PE2 HDB E.MB7
H21 E.OV2 HC0 E.CPU HDC E.EP Previous fault Latest fault
(H30) (HA0)
H22 E.OV3 HC1 E.CTE HF1 E.1
H30 E.THT HC2 E.P24 HF2 E.2
H31 E.THM HC4 E.CDO HF3 E.3
H40 E.FIN HC5 E.IOH HF4 E.4
H50 E.IPF HC6 E.SER HF6 E.6
H51 E.UVT HC7 E.AIE HF7 E.7
H52 E.ILF HC8 E.USB HF8 E.8
H60 E.OLT HD0 E.OS HFA E.10
H80 E.GF HD1 E.OSD HFB E.11
H81 E.LF HD2 E.ECT HFD E.13
H90 E.OHT HD3 E.OD HFF E.15
H91 E.PTC HD5 E.MB1
HA0 E.OPT HD6 E.MB2

[Run command]
Instruction Bit
Item Description Example
Code Length
b0: AU (current input selection) *1 *3
b1: Forward rotation command
b2: Reverse rotation command [Example 1] H02 Forward rotation
b3: RL (low speed operation b7 b0
command) *1 *3 0 0 0 0 0 0 1 0
Run
HFA 8 bits b4: RM (middle speed operation
command
command) *1 *3 [Example 2] H00 Stop
b5: RH (high speed operation b7 b0
command) *1 *3
0 0 0 0 0 0 0 0
b6: RT (second function selection) *1 *3
b7: MRS (output stop) *1 *3
b0:AU (current input selection) *1 *3
b1:Forward rotation command
b2:Reverse rotation command
b3:RL (low speed operation command) *1
*3
b4:RM (middle speed operation
command) *1 *3 [Example 1] H0002 Forward rotation
b5: RH (high speed operation b15 b0
command) *1 *3
Run b6:RT (second function selection) *1 *3
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
command HF9 16 bits b7:MRS (output stop) *1 *3
[Example 2] H0800 low speed operation
(extended) b8:JOG (Jog operation) *2 *3 (When Pr. 189 RES terminal function selection is set to "0")
b9:CS (selection of automatic restart after
instantaneous power failure) *2 *3 b15 b0
b10: STOP (start self-holding) *2 *3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
b11:RES (reset) *2 *3
b12:⎯
b13:⎯
b14:⎯
b15:⎯
*1 The signal within parentheses is the initial setting. The description changes depending on the setting of Pr. 180 to Pr. 184, Pr. 187 (input terminal
function selection) (page 207).
*2 The signal within parentheses is the initial setting. Since jog operation/selection of automatic restart after instantaneous power failure/start self-
holding/reset cannot be controlled by the network, bit 8 to bit 11 are invalid in the initial status. When using bit 8 to bit 11, change the signals with
Pr. 185, Pr. 186, Pr. 188, Pr. 189 (input terminal function selection) (page 207). (Reset can be executed with the instruction code HFD.)
*3 Only forward rotation command and reverse rotation command are available for RS-485 communication using PU connector.

322
 Communication operation and setting

[Inverter status monitor]

Instruction Bit
Item Description Example
Code Length
b0:RUN (inverter running)*
[Example 1] H02 During forward
b1:Forward rotation rotation
b7 b0
b2:Reverse rotation
Inverter 0 0 0 0 0 0 1 0
b3:SU (up to frequency) *
status H7A 8 bits
b4:OL (overload) * [Example 2] H80 Stop at fault
monitor
b5:IPF (instantaneous power failure) * occurrence
b6:FU (frequency detection)* b7 b0
b7:ABC1 (fault) * 1 0 0 0 0 0 0 0
b0:RUN (inverter running) *
b1:Forward rotation
b2:Reverse rotation
b3:SU (up to frequency) *
b4:OL (overload) *
[Example 1] H0002 During forward rotation
b5:IPF (instantaneous power failure) *
Inverter b6:FU (frequency detection) * b15 b0
status b7:ABC1 (fault) * 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
H79 16 bits
monitor b8:ABC2 (⎯)*
b9:⎯ [Example 2] H8080 Stop at fault occurrence
(extended)
b10:⎯ b15 b0
b11:⎯ 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
b12:⎯
b13:⎯
b14:⎯
b15: Fault occurrence
* The signal within parentheses is the initial setting. The description changes depending on the setting of Pr. 190 to Pr. 196 (output terminal function
selection).

4
PARAMETERS

323
Communication operation and setting

4.24.6 Modbus-RTU communication specifications (Pr. 331, Pr. 332, Pr. 334, Pr. 343,
Pr. 539, Pr. 549)
Using the Modbus-RTU communication protocol, communication operation or parameter setting can be
performed from the RS-485 terminals of the inverter.
Parameter
Name Initial Value Setting Range Description
Number
0 Broadcast communication is selected.
RS-485 communication station Specify the inverter station number.
331 0
number Set the inverter station numbers when two
1 to 247
or more inverters are connected to one
personal computer.
Set the communication speed.
3, 6, 12, 24, 48, The setting value × 100 equals the
332 RS-485 communication speed 96 communication speed.
96, 192, 384 For example, the communication speed is
9600bps when the setting value is "96".
Without parity check
0
Stop bit length 2bits
RS-485 communication parity With odd parity check
334 2 1
check selection Stop bit length 1bit
With even parity check
2
Stop bit length 1bit
Display the number of communication
343 Communication error count 0 ⎯ errors during Modbus-RTU
communication. Reading only
Modbus-RTU communication can be
0 made, but the inverter trips in the NET
operation mode.
Modbus-RTU communication Set the interval of communication check time.
539 9999 0.1 to 999.8s
check time interval (same specifications as Pr. 122)
No communication check (signal loss
9999
detection)
Mitsubishi inverter (computer link)
0
protocol
549 Protocol selection 0
1 Modbus-RTU protocol

CAUTION
When Modbus-RTU communication is performed from the master with address 0 (station 0) set, broadcast communication is
selected and the inverter does not send a response message to the master.
When response from the inverter is necessary, set a value other than "0" in Pr. 331 (initial value 0).
Some functions are invalid for broadcast communication. (Refer to page 326)

REMARKS
⋅ When using the Modbus-RTU protocol, set Pr. 549 Protocol selection to "1".
⋅ When the communication option is fitted with Pr. 550 NET mode operation command source selection set to "9999" (initial value), the
command source (e.g. run command) from the RS-485 terminals is invalid. (Refer to page 299)
(1) Communication specifications
⋅ The communication specifications are given below.
Related
Item Description Parameters
Communication protocol Modbus-RTU protocol Pr. 549
Conforming standard EIA-485 (RS-485) ⎯
Number of inverters connected 1: N (maximum 32 units), setting is 0 to 247 stations Pr. 331
Communication speed Selected among 300/600/1200/2400/4800/9600/19200/38400bps Pr. 332
Control protocol Asynchronous system ⎯
Communication method Half-duplex system ⎯
Character system Binary(fixed to 8 bits) ⎯
Start bit 1bit ⎯

Stop bit length Select from the following three types

Communication ⋅ No parity, stop bit length 2 bits
Pr. 334
specifications ⋅ Odd parity, stop bit length 1 bit
Parity check ⋅ Even parity, stop bit length 1 bit
Error check CRC code check ⎯
Terminator Not used ⎯
Waiting time setting Not used ⎯

324
 Communication operation and setting

(2) Outline
The Modbus protocol is the communication protocol developed by Modicon for programmable controller.
The Modbus protocol performs serial communication between the master and slave using the dedicated message
frame. The dedicated message frame has the functions that can perform data read and write. Using the functions,
you can read and write the parameter values from the inverter, write the input command of the inverter, and check
the operating status. In this product, the inverter data are classified in the holding register area (register addresses
40001 to 49999). By accessing the assigned holding register address, the master can communicate with the inverter
which is a slave.
REMARKS
There are two different serial transmission modes: ASCII (American Standard Code for Information Interchange) mode and RTU
(Remote Terminal Unit) mode. This product supports only the RTU mode in which 1-byte (8-bit) data is transmitted as-is.
Only the communication protocol is defined by the Modbus protocol, and the physical layer is not stipulated.

(3) Message format

Inverter response time

Query communication (Refer to the following table for the
data check time)
Programmable controller (Master) Query Message

Inverter (slave) Response Message

Data absence time
(3.5 bytes or more)
Broadcast communication

Programmable controller (Master) Query Message

Inverter (slave) No Response

Data check time

Item Check Time

Various monitors, operation command,
< 12ms
frequency setting (RAM)
Parameter read/write, frequency
< 30ms
setting (EEPROM)
Parameter clear/all clear < 5s
Reset command No answer
1) Query
The master sends a message to the slave (= inverter) at the specified address.
2) Normal Response
After receiving the query from the master, the slave executes the requested function and returns the corresponding
normal response to the master.
3) Error Response
If an invalid function code, address or data is received, the slave returns it to the master.
When a response description is returned, the error code indicating that the request from the master cannot be
executed is added. 4
No response is returned for the hardware-detected error, frame error and CRC check error.
4) Broadcast
PARAMETERS

By specifying address 0, the master can send a message to all slaves. All slaves that received the message from the
master execute the requested function. In this communication, the slaves do not return a response to the master.
REMARKS
The slave executes the function independently of the inverter station number setting (Pr. 331) during broadcast communication.

325
Communication operation and setting

(4) Message frame (protocol)

Communication method
Basically, the master sends a query message (question) and the slave returns a response message
(response). When communication is normal, Device Address and Function Code are copied as they are, and
when communication is abnormal (function code or data code is illegal), bit 7 (= 80h) of Function Code is
turned on and the error code is set to Data Bytes.
Query message from Master
Device Address Device Address
Function Code Function Code

Eight-Bit Eight-Bit
Data Bytes Data Bytes

Error Check Error Check

Response message from slave

The message frame consists of the four message fields as shown above.
By adding the no-data time (T1: Start, End) of 3.5 characters to the beginning and end of the message data,
the slave recognizes it as one message.
Protocol details
The four message fields will be explained below.
Start 1) ADDRESS 2) FUNCTION 3) DATA 4) CRC CHECK End
L H
T1 8 bits 8 bits n × 8 bits T1
8 bits 8 bits

Message Field Description

The address is 1 byte long (8 bits) and any of 0 to 247 can be set. Set 0 to send a broadcast
message (all-address instruction) or any of 1 to 247 to send a message to each slave.
1) ADDRESS field
When the slave responds, it returns the address set from the master.
The value set to Pr. 331 RS-485 communication station number is the slave address.
The function code is 1 byte long (8 bits) and any of 1 to 255 can be set. The master sets the
function that it wants to request from the slave, and the slave performs the requested
operation. The following table gives the supported function codes. An error response is
returned if the set function code is other than those in the following table.
When the slave returns a normal response, it returns the function code set by the master.
When the slave returns an error response, it returns H80 + function code.

Broadcast
Code Function Name Outline
Communication
H03 Read Holding Register Reads the holding register data. Disallowed
2) FUNCTION field H06 Preset Single Register Writes data to the holding register. Allowed
Makes a function diagnosis.
H08 Diagnostics Disallowed
(communication check only)
Writes data to multiple consecutive
H10 Preset Multiple Registers Allowed
holding registers.
Reads the number of registers that
Read Holding Register
H46 succeeded in communication last Disallowed
Access Log
time.
Table 1: Function code list

The format changes depending on the function code (refer to page 327). Data includes the byte
3) DATA field
count, number of bytes, description of access to the holding register, etc.
The received message frame is checked for error. CRC check is performed, and 2 byte long
data is added to the end of the message. When CRC is added to the message, the low-order
byte is added first and is followed by the high-order byte.
4) CRC CHECK field The CRC value is calculated by the sending side that adds CRC to the message. The receiving
side recalculates CRC during message receiving, and compares the result of that calculation
and the actual value received in the CRC CHECK field. If these two values do not match, the
result is defined as error.

326
 Communication operation and setting

(5) Message format types

The message formats corresponding to the function codes in Table 1 on page 326 will be explained.

z Read holding register data (H03 or 03)

Can read the description of 1) system environment variables, 2) real-time monitor, 3) faults history, and 4)
inverter parameters assigned to the holding register area (refer to the register list (page 332)).

Query Message
1) Slave Address 2) Function 3) Starting Address 4) No. of Points CRC Check
H03 H L H L L H
(8 bits)
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

Normal response (Response message)

1) Slave Address 2) Function 5) Byte Count 6) Data CRC Check
H03 H L ... L H
(8 bits) (8 bits)
(8 bits) (8 bits) (8 bits) (n × 16 bits) (8 bits) (8 bits)

⋅ Query message setting

Message Setting Description
Set the address to which the message will be sent. Broadcast
1)Slave Address
communication cannot be made (0 is invalid).
2)Function Set H03.
Set the address at which holding register data read will be started.
Starting address = starting register address (decimal) − 40001
3)Starting Address
For example, setting of the starting address 0001 reads the data of the
holding register 40002.
Set the number of holding registers from which data will be read. The
4)No. of Points
number of registers from which data can be read is a maximum of 125.

⋅ Description of normal response

Message Setting Description
The setting range is H02 to HFA (2 to 250).
5)Byte Count
Twice greater than the No. of Points specified at 4) is set.
The number of data specified at 4) is set. Data are read in order of Hi byte
6)Data and Lo byte, and set in order of starting address data, starting address + 1
data, starting address + 2 data, ...

Example) To read the register values of 41004 (Pr. 4) to 41006 (Pr. 6) from the slave address 17 (H11)
Query message
Slave Address Function Starting Address No. of Points CRC Check
H11 H03 H03 HEB H00 H03 H77 H2B
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

Normal response (Response message) 4

Slave Address Function Byte Count Data CRC Check
H11 H03 H06 H17 H70 H0B HB8 H03 HE8 H2C HE6
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)
PARAMETERS

Read value
Register 41004 (Pr. 4): H1770 (60.00Hz)
Register 41005 (Pr. 5): H0BB8 (30.00Hz)
Register 41006 (Pr. 6): H03E8 (10.00Hz)

327
Communication operation and setting

Write multiple holding register data (H06 or 06)

You can write the description of 1) system environment variables and 4) inverter parameters assigned to the
holding register area (refer to the register list (page 332)).

Query message
1) Slave Address 2) Function 3) Register Address 4) Preset Data CRC Check
H06
(8 bits) H (8 bits) L (8 bits) H (8 bits) L (8 bits) L (8 bits) H (8 bits)
(8 bits)

Normal response (Response message)

1) Slave Address 2) Function 3) Register Address 4) Preset Data CRC Check
H06
(8 bits) H (8 bits) L (8 bits) H (8 bits) L (8 bits) L (8 bits) H (8 bits)
(8 bits)

⋅ Query message setting

Message Setting Description
Set the address to which the message will be sent. Setting of address 0
1) Slave Address
enables broadcast communication
2) Function Set H06.
Set the address of the holding register to which data will be written.
Register address = holding register address (decimal) − 40001
3) RegisterAddress
For example, setting of register address 0001 writes data to the holding
register address 40002.
Set the data that will be written to the holding register. The written data is
4) Preset Data
fixed to 2 bytes.

⋅ Description of normal response

1) to 4) (including CRC check) of the normal response are the same as those of the query message.
No response is made for broadcast communication.
Example) To write 60Hz (H1770) to 40014 (running frequency RAM) at slave address 5 (H05).
Query message
Slave Address Function Register Address Preset Data CRC Check
H05 H06 H00 H0D H17 H70 H17 H99
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

Normal Response (Response message)

Same data as the query message

CAUTION
For broadcast communication, no response is returned in reply to a query. Therefore, the next query must be made
when the inverter processing time has elapsed after the previous query.

328
 Communication operation and setting

Function diagnosis (H08 or 08)

A communication check can be made since the query message sent is returned unchanged as a response
message (function of subfunction code H00).
Subfunction code H00 (Return Query Data)
Query Message
1) Slave Address 2) Function 3) Subfunction 4) Date CRC Check
H08 H00 H00 H L L H
(8 bits)
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

Normal Response (Response message)

1) Slave Address 2) Function 3) Subfunction 4) Date CRC Check
H08 H00 H00 H L L H
(8 bits)
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

⋅ Query message setting

Message Setting Description
Set the address to which the message will be sent. Broadcast
1) Slave Address
communication cannot be made (0 is invalid).
2) Function Set H08.
3) Subfunction Set H0000.
Any data can be set if it is 2 bytes long. The setting range is H0000
4) Data
to HFFFF.

⋅ Description of normal response

1) to 4) (including CRC check) of the normal response are the same as those of the query message.
CAUTION
For broadcast communication, no response is returned in reply to a query. Therefore, the next query must be made when
the inverter processing time has elapsed after the previous query.

Write multiple holding register data (H10 or 16)

You can write data to multiple holding registers.

Query message
1) Slave 2) 3) 4) No. of 5)
6) Data CRC Check
Address Function Starting Address Registers ByteCount
H10 H L H L H L ... L H
(8 bits) (8 bits)
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (n × 2 × 8 bits) (8 bits) (8 bits)

Normal Response (Response message)

1) Slave Address 2) Function 3) Starting Address 4) No. of Registers CRC Check
H10 H L H L L H
(8 bits)
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

⋅ Query message setting

4
Message Setting Description
Set the address to which the message will be sent. Setting of address 0
1) Slave Address
enables broadcast communication.
PARAMETERS

2) Function Set H10.

Set the address where holding register data write will be started.
Starting address = starting register address (decimal) − 40001
3) Starting Address
For example, setting of the starting address 0001 reads the data of the
holding register 40002.
Set the number of holding registers where data will be written. The number of
4) No. of Points
registers where data can be written is a maximum of 125.
The setting range is H02 to HFA (2 to 250).
5) Byte Count
Set a value twice greater than the value specified at 4).
Set the data specified by the number specified at 4). The written data are set
6) Data in order of Hi byte and Lo byte, and arranged in order of the starting address
data, starting address + 1 data, starting address + 2 data ...

329
Communication operation and setting

⋅ Description of normal response

1) to 4) (including CRC check) of the normal response are the same as those of the query message.
Example) To write 0.5s (H05) to 41007 (Pr. 7) at the slave address 25 (H19) and 1s (H0A) to 41008 (Pr. 8).
Query Message
Slave Starting Byte
Function No. of Points Data CRC Check
Address Address Count
H19 H10 H03 HEE H00 H02 H04 H00 H05 H00 H0A H86 H3D
(8 bits) (8 bits) (8 bits) (8 bits) 8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

Response message (Response message)

Slave Starting
Function No. of Points CRC Check
Address Address
H19 H10 H03 HEE H00 H02 H22 H61
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

Read holding register access log (H46 or 70)

A response can be made to a query made by the function code H03 or H10.
The starting address of the holding registers that succeeded in access during previous communication and the
number of successful registers are returned.
In response to the query for other than the above function code, 0 is returned for the address and number of
registers.

Query Message
1) Slave Address 2) Function CRC Check
H46 L H
(8 bits)
(8 bits) (8 bits) (8 bits)

Normal Response (Response message)

1) Slave Address 2) Function 3) Starting Address 4) No. of Points CRC Check
H46 H L H L L H
(8 bits)
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)

⋅ Query message setting

Message Setting Description
Set the address to which the message will be sent. Broadcast
1) Slave Address
communication cannot be made (0 is invalid)
2) Function Set H46.

⋅ Description of normal response

Message Setting Description
The starting address of the holding registers that succeeded in access is
returned.
3) Starting Address Starting address = starting register address (decimal) − 40001
For example, when the starting address 0001 is returned, the address of the
holding register that succeeded in access is 40002.
4) No. of Points The number of holding registers that succeeded in access is returned.

Example) To read the successful register starting address and successful count from the slave address 25 (H19).
Query Message
Slave Address Function CRC Check
H19 H46 H8B HD2
(8 bits) (8 bits) (8 bits) (8 bits)

Normal Response (Response message)

Slave Address Function Starting Address No. of Points CRC Check
H19 H10 H03 HEE H00 H02 H22 H61
(8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits) (8 bits)
Success of two registers at starting address 41007 (Pr. 7) is returned.

330
 Communication operation and setting

Error response
An error response is returned if the query message received from the master has an illegal function, address or
data. No response is returned for a parity, CRC, overrun, framing or busy error.
CAUTION
No response message is sent in the case of broadcast communication also.

Error response (Response message)

1) Slave Address 2) Function 3) Exception Code CRC Check
H80 + Function L H
(8bit) (8bit)
(8bit) (8bit) (8bit)

Message Setting Description

1) Slave address Set the address received from the master.
2) Function The master-requested function code + H80 is set.
3) Exception code The code in the following table is set.
Error code list
Code Error Item Error Definition
The set function code in the query message from the master cannot be
01 ILLEGAL FUNCTION
handled by the slave.
The set register address in the query message from the master cannot be
02 ILLEGAL DATA ADDRESS *1 handled by the inverter.
(No parameter, parameter read disabled, parameter write disabled)
The set data in the query message from the master cannot be handled by
03 ILLEGAL DATA VALUE the inverter.
(Out of parameter write range, mode specified, other error)
*1 An error will not occur in the following cases.
1) Function code H03 (Read Holding Register Data )
When the No. of Points is 1 or more and there is one or more holding registers from which data can be read
2) Function code H10 (Write Multiple Holding Register Data)
When the No. of Points is 1 or more and there is 1 or more holding registers to which data can be written
Namely, when the function code H03 or H10 is used to access multiple holding registers, an error will not occur if a non-existing holding
register or read disabled or write disabled holding register is accessed.

REMARKS
An error will occur if all accessed holding registers do not exist.
Data read from a non-existing holding register is 0, and data written there is invalid.

⋅ Message data mistake detection

To detect the mistakes of message data from the master, they are checked for the following errors. If an error
is detected, a trip will not occur.
Error check item
Error Item Error Definition Inverter Side Operation
The data received by the inverter differs from the
Parity error
specified parity (Pr. 334 setting).

Framing error
The data received by the inverter differs from the 4
specified stop bit length (Pr. 334).
The following data was sent from the master before 1) Pr. 343 is increased by 1 at error
Overrun error
PARAMETERS

the inverter completes data receiving. occurrence.

The message frame data length is checked, and the 2) The terminal LF is output at error
Message frame occurrence.
received data length of less than 4 bytes is regarded
error
as an error.
A mismatch found by CRC check between the
CRC check error message frame data and calculation result is
regarded as an error.

331
Communication operation and setting

(6) Modbus registers

System environment variable
Register Definition Read/Write Remarks
40002 Inverter reset Write Any value can be written
40003 Parameter clear Write Set H965A as a written value.
40004 All parameter clear Write Set H99AA as a written value.
40006 Parameter clear *1 Write Set H5A96 as a written value.
40007 All parameter clear *1 Write Set HAA99 as a written value.
40009 Inverter status/control input instruction *2 Read/write See below.
40010 Operation mode/inverter setting *3 Read/write See below.
40014 Running frequency (RAM value) Read/write According to the Pr. 37 and Pr. 144 settings, the
frequency and selectable speed are in 1r/min
40015 Running frequency (EEPROM value) Write increments.
*1 The communication parameter values are not cleared.
*2 For write, set the data as a control input instruction. For read, data is read as an inverter operating status.
*3 For write, set data as the operation mode setting. For read, data is read as the operation mode status.

<Inverter status/control input instruction> <Operation mode/inverter setting>

Definition Read Written
Bit Mode
Control input instruction Inverter status Value Value
0 Stop command RUN (inverter running) *2 EXT H0000 H0010
1 Forward rotation command Forward rotation PU H0001 ⎯
2 Reverse rotation command Reverse rotation EXT
3 RH (high speed operation command) *1 SU (up to frequency) *2 H0002 ⎯
JOG
4 RM (middle speed operation command) *1 OL (overload) *2 PU
5 RL (low speed operation command) *1 IPF (instantaneous power failure) *2 H0003 ⎯
JOG
6 JOG (Jog operation) *1 FU (frequency detection) *2
NET H0004 H0014
7 RT (second function selection) *1 ABC1 (alarm) *2
PU+
8 AU (current input selection) *1 ABC2 (⎯) *2 H0005 ⎯
EXT
CS
9 (selection of automatic restart after 0 The restrictions depending on the
instantaneous power failure) *1 operation mode changes according
10 MRS (output stop) *1 0 to the computer link specifications.
11 STOP (start self-holding) *1 0
12 RES (reset) *1 0
13 0 0
14 0 0
15 0 Fault occurrence
*1 The signal within parentheses is the initial setting. The description changes depending on the setting of Pr. 180 to Pr. 189 (input
terminal function selection) (page 207).
Each assigned signal is valid or invalid depending on NET. (Refer to page 299)
*2 The signal within parentheses is the initial setting. The description changes depending on the setting of Pr. 190 to Pr. 196 (output
terminal function selection) (page 215).

332
 Communication operation and setting

Real-time monitor
Refer to page 229 for details of the monitor description.

Register Definition Increments Register Definition Increments Register Definition Increments

Output frequency/ Input terminal 40235 Feedback pulse ⎯
40201 0.01Hz/1 40215 ⎯
speed *6 status *1 40250 Power saving effect Variable
40202 Output current 0.01A Output terminal Cumulative saving
40216 ⎯ 40251 Variable
40203 Output voltage 0.1V status *2 power
Frequency setting/ 40217 Load meter 0.1% 40252 PID set point 0.1%
40205 0.01Hz/1
speed setting *6 Motor excitation PID measured
40218 0.01A 40253 0.1%
40206 Running speed 1r/min current value
40207 Motor torque 0.1% 40219 Position pulse ⎯ 40254 PID deviation value 0.1%
Converter output Cumulative Option input
40208 0.1V 40220 1h 40258 ⎯
voltage energization time terminal status1 *3
Electronic thermal 40222 Orientation status ⎯ Option input
40259 ⎯
40210 relay function load 0.1% Actual operation terminal status2 *4
40223 1h
factor time Option output
40260 ⎯
Output current peak 40224 Motor load factor 0.1% terminal status *5
40211 0.01A
value 40225 Cumulative power 1kWh 40263
Output power *7 0.1kW
Converter output 40232 Torque command 0.1%
40212 0.1V
voltage peak value Torque current 40266 Cumulative
40233 0.1% 1kWh
40213 Input power 0.01kW command regenerative power
40214 Output power 0.01kW 40234 Motor output 0.01
..............Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.
*1 Input terminal monitor details
b15 b0
⎯ ⎯ ⎯ ⎯ CS RES STOP MRS JOG RH RM RL RT AU STR STF
*2 Output terminal monitor details
b15 b0
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ABC2 ABC1 FU OL IPF SU RUN
*3 Details of option input terminal monitor 1 (input terminal status of FR-A7AX)-all terminals are off when an option is not fitted
b15 b0
X15 X14 X13 X12 X11 X10 X9 X8 X7 X6 X5 X4 X3 X2 X1 X0
*4 Details of option input terminal monitor 2 (input terminal status of FR-A7AX)-all terminals are off when an option is not fitted
b15 b0
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ DY
*5 Details of option input terminal monitor (output terminal status of FR-A7AY/A7AR)-all terminals are off when an option is not fitted
b15 b0
⎯ ⎯ ⎯ ⎯ ⎯ ⎯ RA3 RA2 RA1 Y6 Y5 Y4 Y3 Y2 Y1 Y0
*6 When Pr. 37 = "1 to 9998" or Pr. 144 = "2 to 10, 102 to 110," the unit is an integral value (one increment). (Refer to page 227)
*7 Regenerative display is not available. Regenerative display is only available on the operation panel (FR-DU07).

4
PARAMETERS

333
Communication operation and setting

Parameter
Parameters Register Parameter Name Read/Write Remarks
41000 to Refer to the parameter list (page 55) for The parameter number + 41000 is the
0 to 999 Read/write
41999 the parameter names. register number.
Terminal 2 frequency setting bias
C2(902) 41902 Read/write
(frequency)
Terminal 2 frequency setting bias The analog value (%) set to C3 (902) is
42092 Read/write
(analog value) read.
C3(902)
Terminal 2 frequency setting bias The analog value (%) of the voltage
43902 Read
(terminal analog value) (current) applied to the terminal 2 is read.
Terminal 2 frequency setting gain
125(903) 41903 Read/write
(frequency)
Terminal 2 frequency setting gain The analog value (%) set to C4 (903) is
42093 Read/write
(analog value) read.
C4(903)
Terminal 2 frequency setting gain The analog value (%) of the voltage
43903 Read
(terminal analog value) (current) applied to the terminal 2 is read.
Terminal 4 frequency setting bias
C5(904) 41904 Read/write
(frequency)
Terminal 4 frequency setting bias The analog value (%) set to C6 (904) is
42094 Read/write
(analog value) read.
C6(904)
Terminal 4 frequency setting bias The analog value (%) of the current
43904 Read
(terminal analog value) (voltage) applied to the terminal 4 is read.
Terminal 4 frequency setting gain
126(905) 41905 Read/write
(frequency)
Terminal 4 frequency setting gain The analog value (%) set to C7 (905) is
42095 Read/write
(analog value) read.
C7(905)
Terminal 4 frequency setting gain The analog value (%) of the current
43905 Read
(terminal analog value) (voltage) applied to the terminal 4 is read.
C12(917) 41917 Terminal 1 bias frequency (speed) Read/write
42107 Terminal 1 bias (speed) Read/write Analog value (%) set in C13 (917) is read.
C13(917) Terminal 1 bias (speed) Analog value (%) of the voltage applied to
43917 Read
(terminal analog value) terminal 1 is read.
C14(918) 41918 Terminal 1 gain frequency (speed) Read/write
42108 Terminal 1 gain (speed) Read/write Analog value (%) set in C15 (918) is read.
C15(918) Terminal 1 gain (speed) Analog value (%) of the voltage applied to
43918 Read
(terminal analog value) terminal 1 is read.
Terminal 1 bias command (torque/
C16(919) 41919 Read/write
magnetic flux)
42109 Terminal 1 bias (torque/magnetic flux) Read/write Analog value (%) set in C17 (919) is read.
C17(919) Terminal 1 bias (torque/magnetic flux) Analog value (%) of the voltage applied to
43919 Read
(terminal analog value) terminal 1 is read.
Terminal 1 gain command (torque/
C18(920) 41920 Read/write
magnetic flux)
42110 Terminal 1 gain (torque/magnetic flux) Read/write Analog value (%) set in C19 (920) is read.
C19(920) Terminal 1 gain (torque/magnetic flux) Analog value (%) of the voltage applied to
43920 Read
(terminal analog value) terminal 1 is read.
Terminal 4 bias command (torque/
C38(932) 41932 Read/write
magnetic flux)
42122 Terminal 4 bias (torque/magnetic flux) Read/write Analog value (%) set in C39 (932) is read.
C39(932) Terminal 4 bias (torque/magnetic flux) Analog value (%) of the current (voltage)
43932 Read
(terminal analog value) applied to terminal 4 is read.
Terminal 4 gain command (torque/
C40(933) 41933 Read/write
magnetic flux)
42123 Terminal 4 gain (torque/magnetic flux) Read/write Analog value (%) set in C41 (933) is read.
C41(933) Terminal 4 gain (torque/magnetic flux) Analog value (%) of the current (voltage)
43933 Read
(terminal analog value) applied to terminal 4 is read.

334
 Communication operation and setting

Alarm history
Register Definition Read/Write Remarks
40501 Fault history 1 Read/write
40502 Fault history 2 Read
40503 Fault history 3 Read Being 2 bytes in length, the data is stored as
"H00 ". Refer to the lowest 1 byte for the fault
40504 Fault history 4 Read
code.
40505 Fault history 5 Read
Performing write using the register 40501 batch-
40506 Fault history 6 Read clears the faults history. Set any value as data.
40507 Fault history 7 Read
40508 Fault history 8 Read

Fault code list

Data Description Data Description Data Description Data Description
H00 No alarm H80 E.GF HC5 E.IOH HDB E.MB7
H10 E.OC1 H81 E.LF HC6 E.SER HDC E.EP
H11 E.OC2 H90 E.OHT HC7 E.AIE HF1 E.1
H12 E.OC3 H91 E.PTC HC8 E.USB HF2 E.2
H20 E.OV1 HA0 E.OPT HD0 E.OS HF3 E.3
H21 E.OV2 HA3 E.OP3 HD1 E.OSD HF4 E.4
H22 E.OV3 HB0 E.PE HD2 E.ECT HF6 E.6
H30 E.THT HB1 E.PUE HD3 E.OD HF7 E.7
H31 E.THM HB2 E.RET HD5 E.MB1 HF8 E.8
H40 E.FIN HB3 E.PE2 HD6 E.MB2 HFA E.10
H50 E.IPF HC0 E.CPU HD7 E.MB3 HFB E.11
H51 E.UVT HC1 E.CTE HD8 E.MB4 HFD E.13
H52 E.ILF HC2 E.P24 HD9 E.MB5 HFF E.15
H60 E.OLT HC4 E.CDO HDA E.MB6

* Refer to page 383 for details of alarm definition.

(7) Pr. 343 Communication error count

You can check the cumulative number of communication errors.
Parameters Setting Range Minimum Setting Range Initial Value
343 (Read only) 1 0
CAUTION
The number of communication errors is temporarily stored into the RAM. As it is not stored into the EEPROM, performing
a power supply reset or inverter reset clears the value to 0.

(8) Output signal LF "alarm output (communication error warnings)"

During a communication error, the alarm signal (LF signal) is output by open collector output. Assign the used
terminal using any of Pr. 190 to Pr. 196 (output terminal function selection).
4
Master Alarm data Alarm data Normal data Alarm data Normal data
Slave Reply data Reply data
PARAMETERS

Not increased
Communication
Error count 0 1 2
(Pr. 343)

Signal LF OFF ON OFF ON OFF

Turns off when normal data is received

Communication error count is increased in Alarm data : Data resulting in

synchronization with rising edge of LF signal communication error.

CAUTION
The LF signal can be assigned to the output terminal using any of Pr. 190 to Pr. 196. When terminal assignment is changed, the
other functions may be affected. Set parameters after confirming the function of each terminal.

335
Communication operation and setting

(9) Signal loss detection (Pr. 539 Modbus-RTU communication check time interval)

If a signal loss (communication stop) is detected between the inverter and master as a result of a signal loss
detection, a communication fault (E.SER) occurs and the inverter trips.
· When the setting is "9999", communication check (signal loss detection) is not made.
· When the setting value is "0", monitor, parameter read, etc. can be performed. However, a communication fault
(E.SER) occurs as soon as the inverter is switched to the Network operation mode.
· A signal loss detection is made when the setting is any of "0.1s to 999.8s". To make a signal loss detection, it is
necessary to send data from the master within the communication check time interval. (The inverter makes
communication check (clearing of communication check counter) regardless of the station number setting of the data
sent from the master.)
· Communication check is started from the first communication after switching to the Network operation mode (use Pr.
551 PU mode operation command source selection to change).
· Communication check time of query communication includes data absence time (3.5 byte).
Since this data absence time differs according to the communication speed, make setting considering this absence
time.

Example: RS-485 terminal communication, Pr. 539 = "0.1 to 999.8s"

Query communication
Operation mode External NET

Query Message1 Query Message2

Programmable controller (master) Data absence time
Inverter (slave) (3.5 bytes or more)
Inverter (slave)
Programmable controller (master) Fault
Response Message1 Response Message2 (E.SER)
Pr.539
Communication
check counter
Check start Time
Broadcast communication
Operation mode External NET

Query Message1 Query Message2

Programmable controller (master)
Inverter (slave)
Inverter (slave)
Programmable controller (master) Data absence time Fault
(3.5 bytes or more) (E.SER)
Pr.539
Communication
check counter
Check start Time

336
 Communication operation and setting

4.24.7 USB communication (Pr. 547, Pr. 548)

Inverter setup can be easily performed using FR Configurator by connecting the inverter and personal computer
with a USB cable.
A personal computer and inverter can be easily connected with one USB cable.

Parameter
Name Initial Value Setting Range Description
Number
USB communication station
547* 0 0 to 31 Specify the inverter station number.
number
USB communication is enabled. However, the
0 inverter will trip (E. USB) if operation is changed
to PU operation mode.
USB communication check Set the interval of communication check time.
548* 9999
time interval If a no-communication state persists for longer
0.1 to 999.8s
than the permissible time, the inverter will trip
(E.USB).
9999 No communication check
* Changed setting value is valid when powering ON or resetting the inverter.

zUSB communication specifications

Interfase Conforms to USB1.1
Transmission
12Mbps
speed:
Connector USB B connector (B receptacle)
Cable Twisted pair shield cable 5m maximum
Power supply Self-power supply

USB cable USB connector

Removal of cover
Place a flat-blade screwdriver,
etc. in a slot and push up the 4
cover to open.
PARAMETERS

· When using USB communication, set "3" in Pr. 551 PU mode operation command source selection.
· You can perform parameter setting and monitoring with FR Configurator. Refer to the instruction manual of FR
Configurator for details.
♦ Parameters referred to ♦
Pr. 551 PU mode operation command source selection Refer to page 299

337
Special operation and frequency control

4.25 Special operation and frequency control

Refer
Purpose Parameter that must be Set
to Page
Perform process control such as pump and air Pr. 127 to Pr. 134,
PID control 338
volume. Pr. 575 to Pr. 577
Switch between the inverter operation and Bypass-inverter switchover
Pr. 135 to Pr. 139, Pr. 159 346
bypass operation to operate. function
Load torque high speed
Increase speed when the load is light. Pr. 4, Pr. 5, Pr. 270 to Pr. 274 351
frequency control
Frequency control appropriate for the load torque Droop control Pr. 286 to Pr. 288 354
Frequency setting by pulse train input Pulse train input Pr. 291, Pr. 384 to Pr. 386 356
Pr. 144, Pr. 285, Pr. 359,
Make the motor speed constant by encoder Encoder feedback control 359
Pr. 367 to Pr. 369
Avoid overvoltage alarm due to regeneration by Regeneration avoidance
Pr. 882 to Pr. 886 361
automatic adjustment of output frequency function

4.25.1 PID control (Pr. 127 to Pr. 134, Pr. 575 to Pr. 577)

The inverter can be used to exercise process control, e.g. flow rate, air volume or pressure.
The terminal 2 input signal or parameter setting is used as a set point and the terminal 4 input signal used as a
feedback value to constitute a feedback system for PID control.

Parameter Initial Setting

Name Description
Number Value Range
Set the frequency at which the control is automatically
PID control automatic 0 to 400Hz
127 9999 changed to PID control.
switchover frequency
9999 Without PID automatic switchover function
10 PID reverse action Deviation value signal input
11 PID forward action (terminal 1 )
20 PID reverse action Measured value (terminal 4 )
21 PID forward action Set point (terminal 2 or Pr. 133)
128 PID action selection 10
50 PID reverse action Deviation value signal input
51 PID forward action (LONWORKS , CC-Link communication)
60 PID reverse action Measured value, set point input
61 PID forward action (LONWORKS , CC-Link communication)
If the proportional band is narrow (parameter setting is small),
the manipulated variable varies greatly with a slight change of
the measured value. Hence, as the proportional band narrows,
0.1 to 1000%
129 *1 PID proportional band 100% the response sensitivity (gain) improves but the stability
deteriorates, e.g. hunting occurs.
Gain Kp = 1/proportional band
9999 No proportional control
When deviation step is input, time (Ti) is the time required for
integral (I) action to provide the same manipulated variable as
0.1 to 3600s
130 *1 PID integral time 1s proportional (P) action. As the integral time decreases, the set
point is reached earlier but hunting occurs more easily.
9999 No integral control
Set the upper limit value. If the feedback value exceeds the
setting, the FUP signal is output. The maximum input (20mA/
0 to 100%
131 PID upper limit 9999 5V/10V) of the measured value (terminal 4) is equivalent to
100%.
9999 No function
Set the lower limit value. If the measured value falls below the
setting range, the FDN signal is output. The maximum input
0 to 100%
132 PID lower limit 9999 (20mA/5V/10V) of the measured value (terminal 4) is
equivalent to 100%.
9999 No function
0 to 100% Used to set the set point for PID control.
133 *1 PID action set point 9999
9999 Terminal 2 input is the set point.

338
 Special operation and frequency control

Parameter Initial Setting

Name Description
Number Value Range
When deviation lamp is input, time (Td) is the time required to
0.01 to provide the manipulated variable of only the proportional (P)
134 *1 PID differential time 9999 10.00s action. As the differential time increases, greater response is
made to a deviation change.
9999 No differential control
The inverter stops operation if the output frequency after PID
Output interruption 0 to 3600s operation remains at less than the Pr. 576 setting for longer
575 1s
detection time than the time set in Pr. 575.
9999 Without output interruption function
Output interruption Set the frequency at which the output interruption processing
576 0Hz 0 to 400Hz
detection level is performed.
Output interruption Set the level (Pr. 577 minus 1000%) at which the PID output
577 1000% 900 to 1100%
cancel level interruption function is canceled.
*1 Pr. 129, Pr. 130, Pr. 133 and Pr. 134 can be set during operation. They can also be set independently of the operation mode.

(1) PID control basic configuration

⋅Pr. 128 = "10, 11" (Deviation value signal input)
Inverter circuit

PID operation Manipulated Motor

Set point Deviation signal variable
+- 1 IM
Terminal 1* Kp 1+ Ti S +Td S
0 to 10VDC
To outside (0 to 5V)

Feedback signal (measured value)

Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
* Set 0 in Pr. 868 Terminal 1 function assignment. PID control is invalid when Pr. 868 ≠ 0.

⋅Pr. 128 = "20, 21" (Measured value input)

Inverter circuit
Pr. 133 or Manipulated Motor
PID operation
terminal 2 *1 variable
+- 1 IM
Set point Kp 1+ Ti S +Td S
0 to 5VDC
(0 to 10V, 4 to 20mA) Terminal 4 *2
Feedback signal (measured value) 4 to 20mADC (0 to 5V, 0 to 10V)
Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
*1 Note that terminal 1 input is added to the set point of terminal 2 input.
*2 Set 0 in Pr. 858 Terminal 4 function assignment. PID control is invalid when Pr. 858 ≠ 0.

4
PARAMETERS

339
Special operation and frequency control

(2) PID action overview

1) PI action
A combination of P action (P) and I action (I) for providing a
Deviation Set point
manipulated variable in response to deviation and changes with time.
Measured value

[Operation example for stepped changes of measured value]

P action
(Note) PI action is the sum of P and I actions. Time

I action
Time

PI action
Time

2) PD action
A combination of P action (P) and differential control action (D) for
providing a manipulated variable in response to deviation speed to Set point
improve the transient characteristic. Deviation

Measured value
[Operation example for proportional changes of measured value] P action
Time
(Note) PD action is the sum of P and D actions.
D action
Time

PD
action
Time

3) PID action
The PI action and PD action are combined to utilize the advantages of both
actions for control. Set point

Deviation
(Note) PID action is the sum of P, I and D actions. Measured value
P action
Time

I action
Time
D action
Time

PID action
Time

340
 Special operation and frequency control

4)Reverse action
Increases the manipulated variable (output frequency) if deviation X = (set point - measured value) is positive, and
decreases the manipulated variable if deviation is negative.
Deviation Set point
[Heating]
+ X>0
Set Cold Increase
point X<0 Hot Decrease
- Measured value
Feedback signal
(measured value)
5)Forward action
Increases the manipulated variable (output frequency) if deviation X = (set point - measured value) is negative, and
decreases the manipulated variable if deviation is positive.
Measured value
[Cooling]
+ X>0 Set point
Set Too cold Decrease
point - X<0 Hot Increase

Feedback signal
(measured value) Deviation

Relationships between deviation and manipulated variable (output frequency)

Deviation
Positive Negative
Reverse action
Forward action

(3) Connection diagram

⋅ Sink logic
⋅ Pr. 128 = 20 MCCB
Inverter
Motor Pump
⋅ Pr. 183 = 14 R/L1 U
Power supply S/L2 V IM P
⋅ Pr. 191 = 47 T/L3 W
⋅ Pr. 192 = 16
⋅ Pr. 193 = 14 Forward STF
⋅ Pr. 194 = 15 rotation
Reverse STR
rotation
PID control RT(X14)*3 2-wire type 3-wire
selection *2(PID)SU During PID action Detector type
SD
*2(FUP)FU Upper limit
Setting 10 *2(FDN)OL Lower limit
Forward rotation - + + - +
Potentiometer 2 *2(RL)IPF output
(Set point setting) Reverse rotation
5 (OUT) (24V)
output
1
4 SE Output signal common
(COM)
4
PARAMETERS

(Measured value) 4 to 20mA

0 24V
Power
*1
supply

AC1φ
200/220V 50/60Hz
*1 The power supply must be selected in accordance with the power specifications of the detector used.
*2 The used output signal terminal changes depending on the Pr. 190 to Pr. 196 (output terminal selection) setting.
*3 The used input signal terminal changes depending on the Pr. 178 to Pr. 189 (input terminal selection) setting.
*4 The AU signal need not be input.

341
 Special operation and frequency control

(4) I/O signals and parameter setting

⋅ Turn ON the X14 signal to perform PID control. When this signal is OFF, PID action is not performed and normal
inverter operation is performed. (Note that it is not necessary to turn ON X14 signal when performing PID control
with using LONWORKS or CC-Link communication. )
⋅ Enter the set point across inverter terminals 2 and 5 or into Pr. 133 and enter the measured value signal across
inverter terminals 4 and 5. At this time, set "20" or "21" in Pr. 128.
⋅ When entering the externally calculated deviation signal, enter it across terminals 1 and 5. At this time, set "10" or
"11" in Pr. 128.
Terminal
Signal Function Description Parameter Setting
Used
X14 PID control selection Turn on X14 to perform PID control. Set 14 in any of Pr. 178 to Pr. 189.
Depending on By turning on X64, forward action can be
PID forward/
Pr. 178 to Pr. selected for PID reverse action (Pr. 128 =
X64 reverse action Set 64 in any of Pr. 178 to Pr. 189.
189 10, 20), and reverse action for forward
switchover
action (Pr. 128 = 11, 21).
Enter the set point for PID control. Pr. 128 = 20, 21, Pr. 133 = 9999
0 to 5V................0 to 100% Pr. 73 = 1 *1, 3, 5, 11, 13, 15
2 2 Set point input
0 to 10V..............0 to 100% Pr. 73 = 0, 2, 4, 10, 12, 14
0 to 20mA...........0 to 100% Pr. 73 = 6, 7, 16, 17
Set the set value (Pr. 133) from the
PU ⎯ Set point input Pr. 128 = 20, 21, Pr. 133 = 0 to 100%
operation panel or parameter unit.
Input the deviation signal calculated
Input

Pr. 128 = 10 *1, 11

Deviation signal externally.
1 1
input -5V to +5V ..........-100% to +100% Pr. 73 = 2, 3, 5, 7, 12, 13, 15, 17
-10V to +10V ......-100% to +100% Pr. 73 = 0, 1 *1, 4, 6, 10, 11, 14, 16
Input the signal from the detector
Pr. 128 = 20, 21
(measured value signal).
Measured value 4 to 20mA. 0 to 100% Pr. 267 = 0 *1
4 4
input
0 to 5V...... 0 to 100% Pr. 267 = 1
0 to 10V.... 0 to 100% Pr. 267 = 2
Deviation value Input the deviation value from
Communi- Pr. 128 = 50, 51
input LONWORKS, CC-Link communication.
cation ⎯
Set value, measured Input the set value and measured value
*2 Pr. 128 = 60, 61
value input from LONWORKS , CC-Link communication.
Output to indicate that the measured Pr. 128 = 20, 21, 60, 61
FUP Upper limit output value signal exceeded the maximum Pr. 131 ≠ 9999
value (Pr. 131). Set 15 or 115 in any of Pr. 190 to Pr. 196. *3
Pr. 128 = 20, 21, 60, 61
Output when the measured value signal
FDN Lower limit output Pr. 132 ≠ 9999
falls below the minimum value (Pr. 132).
Set 14 or 114 in any of Pr. 190 to Pr. 196. *3
Depending on "Hi" is output to indicate that the output
Forward (reverse)
Pr. 190 to Pr. indication of the parameter unit is forward Set 16 or 116 in any of Pr. 190 to Pr.
Output

RL rotation direction
196 rotation (FWD) or "Low" to indicate that it 196. *3
output
is reverse rotation (REV) or stop (STOP).
During PID Set 47 or 147 in any of Pr. 190 to Pr.
PID Turns ON during PID control.
control activated 196. *3
Pr. 575 ≠ 9999
PID output Turns ON when the PID output
SLEEP Set 70 or 170 in any of Pr. 190 to Pr.
interruption interruption function is performed.
196. *3
Output terminal Common terminal for terminals FUP,
SE SE
common FDN, RL, PID and SLEEP
*1 The shaded area indicates the parameter initial value.
*2 For the setting method via LONWORKS communication, refer to the LONWORKS communication option (FR-A7NL) instruction manual.
For the setting method via CC-Link communication, refer to the CC-Link communication option (FR-A7NC) instruction manual.
*3 When 100 or larger value is set in any of Pr. 190 to Pr. 196 (output terminal function selection), the terminal output has negative logic. (Refer to
page 215 for details)
CAUTION
⋅ Changing the terminal function using any of Pr. 178 to Pr. 189, Pr. 190 to Pr. 196 may affect the other functions. Set parameters
after confirming the function of each terminal.
⋅ When the Pr. 73 and Pr. 267 settings were changed, check the voltage/current input switch setting. Different setting may cause a
fault, failure or malfunction. (Refer to page 263 for setting.)

342
 Special operation and frequency control

(5) PID control automatic switchover control (Pr. 127)

⋅ The inverter can be started up without PID control mode only at a start.
⋅ When the frequency is set to Pr. 127 PID control automatic switchover frequency within the range 0 to 400Hz, the
system starts up without PID operation from a start until Pr. 127 is reached, and then it shifts to PID control
operation mode. Once the system has entered PID control operation, it continues PID control if the output
frequency falls to or below Pr. 127.
Output frequency Without
PID
operation PID control

Pr.127

Time
STF

PID

(6) PID output suspension function (SLEEP function) (SLEEP signal, Pr. 575 to Pr. 577 )
⋅ The inverter stops operation if the output frequency after PID operation remains at less than the Pr. 576 Output
interruption detection level setting for longer than the time set in Pr. 575 Output interruption detection time. This function
can reduce energy consumption in the low-efficiency, low-speed range.
⋅ When the deviation (= set value - measured value) reaches the PID output shutoff cancel level (Pr. 577 setting -
1000%) while the PID output interruption function is ON, the PID output interruption function is canceled and PID
control operation is resumed automatically.
⋅ While the PID output interruption function is ON, the PID output interruption signal (SLEEP) is output. At this time,
the inverter running signal (RUN) is OFF and the PID control operating signal (PID) is ON.
Reverse action (Pr.128 10)
Deviation

Pr.577 - 1000% Cancel

level

Output frequency

Pr.576

Less than Pr. 575

Pr. 575 or more SLEEP period
Time

RUN OFF

PID
4
SLEEP ON

(7) PID monitor function

PARAMETERS

⋅ The PID control set point, measured value and deviation value can be displayed on the operation panel and output
from terminal FM, AM.
⋅ Integral value indicating a negative % can be displayed on the deviation monitor. 0% is displayed as 1000. (The
deviation monitor cannot be output from the terminal FM, AM.)
⋅ For the monitors, set the following values in Pr. 52 DU/PU main display data selection, Pr. 54 FM terminal function
selection, and Pr. 158 AM terminal function selection.
Minimum Terminal FM,
Setting Monitor Description Remarks
Increments AM Full Scale
52 PID set point 0.1% 100% For deviation input (Pr. 128 = 10, 11), the monitor
53 PID measurement value 0.1% 100% value is always displayed as 0.
Value cannot be set to Pr. 54 or Pr. 158.
54 PID deviation value 0.1% ⎯
The PID deviation value of 0% is displayed as 1000.

343
Special operation and frequency control

(8) Adjustment procedure

Adjust the PID control parameters, Pr. 127 to Pr. 134 and Pr. 575 to Pr. 577.
Parameter setting

Terminal setting Set the I/O terminals for PID control. (Pr. 178 to Pr. 189 (input terminal
function selection), Pr. 190 to Pr. 196 (output terminal function selection))

Turn on the X14 signal

Operation

(9) Calibration example

(A detector of 4mA at 0°C and 20mA at 50°C is used to adjust the room temperature to 25°C under PID control.
The set point is given to across inverter terminals 2 and 5 (0 to 5V).)

Start

Determination of set point Set the room temperature to 25 .

Set Pr. 128 and turn on the X14 signal to enable PID control.
Determine the set point of
what is desired to be adjusted.

Conversion of set point into % Detector specifications

When 0 4mA and 50 20mA are used, the set point 25 is 50% on
Calculate the ratio of the set
point to the detector output. the assumption that 4mA is 0% and 20mA is 100%.

Make calibration. Make the following calibration* when the target setting input (0 to 5V) and
detector output (4 to 20mA) must be calibrated.

Setting of set point When the set point is 50%

As the terminal 2 specifications are 0% 0V and 100% 5V, input 2.5V
Input a voltage across terminals
to the terminal 2 for the set point of 50%.
2-5 according to the set value %.

Operation When the parameter unit is used for operation, input the set point (0 to
Set the proportional band (Pr. 100%) in Pr. 133.
129 ) to a slightly larger value, When performing operation, first set the proportional band (Pr. 129 ) to a
the integral time (Pr. 130 ) to a slightly larger value, the integral time (Pr. 130 ) to a slightly longer time,
slightly longer time, and the and the differential time (Pr. 134 ) to "9999" (no function), and while looking
differential time (Pr. 134 ) to at the system operation, decrease the proportional band (Pr. 129 ) and
"9999" (no function), and turn increase the integral time (Pr. 130 ). For slow response system where a
on the start signal.
deadband exists, differential control (Pr. 134 ) should be turned on and
increased slowly.

Yes
Is the set point stable?

No

Parameter adjustment Parameter optimization

To stabilize the measured value, While the measured value is stable
change the proportional band (Pr. throughout the operating status, the
129 ) to a larger value, the integral proportional band (Pr. 129 ) may be
time (Pr. 130 ) to a slightly longer decreased, the integral time (Pr. 130 )
time, and the differential time (Pr. decreased, and the differential time
134 ) to a slightly shorter time. (Pr. 134 ) increased.

Adjustment end

* When calibration Using calibration Pr. 902 and Pr. 903 (terminal 2) or Pr. 904 and Pr. 905 (terminal
is required 4), calibrate the detector output and target setting input.
Make calibration in the PU mode during an inverter stop.

344
 Special operation and frequency control

<Set point input calibration>

1. Apply the input voltage of 0% set point setting (e.g. 0V) across terminals 2 and 5.
2. Enter in C2 (Pr. 902) the frequency which should be output by the inverter at the deviation of 0% (e.g. 0Hz).
3. In C3 (Pr. 902), set the voltage value at 0%.
4. Apply the voltage of 100% set point (e.g. 5V) to across terminals 2 and 5.
5. Enter in Pr. 125 the frequency which should be output by the inverter at the deviation of 100% (e.g. 60Hz).
6. In C4 (Pr. 903), set the voltage value at 100%.

<Measured value calibration>

1. Apply the input current of 0% measured value (e.g. 4mA) across terminals 4-5.
2. Make calibration using C6 (Pr. 904).
3. Apply the input current of 100% measured value (e.g. 20mA) across terminals 4-5.
4. Make calibration using C7 (Pr. 905).
REMARKS
⋅ The frequency set in C5 (Pr. 904) and Pr. 126 should be the same as set in C2 (Pr. 902) and Pr. 125.
The results of the above calibration are as shown below:

[Set point setting] [Measured value] [Manipulated variable]

Manipulated variable (Hz)
(%) (%)
100 100 60

0 0 0
0 5 (V) 0 4 20 (mA) 0 100 Deviation (%)

CAUTION
⋅ If the RH, RM, RL, REX signal (multi-speed) or JOG signal (Jog operation) is entered with the X14 signal on, PID control is
stopped and multi-speed or jog operation is started.
⋅ If the setting is as follows, PID control becomes invalid.
Pr. 79 Operation mode selection = "6" (switchover mode)
⋅ When the Pr. 128 setting is "20" or "21", note that the input across inverter terminals 1-5 is added to the set value across
terminals 2 and 5.
⋅ When using terminal 4 (measured value input) and terminal 1 (deviation input) under PID control, set "0" (initial value) in Pr. 858
Terminal 4 function assignment and "0" (initial value) in Pr. 868 Terminal 1 function assignment. PID control can not be performed
when a value other than 0 is set.
⋅ Changing the terminal function using any of Pr. 178 to Pr. 189, Pr. 190 to Pr. 196 may affect the other functions. Set parameters
after confirming the function of each terminal.
⋅ When PID control is selected, the minimum frequency is the frequency set in Pr. 902 and the maximum frequency is the
frequency set in Pr. 903. (Pr. 1 Maximum frequency and Pr. 2 Minimum frequency settings are also valid.)
⋅ The remote operation function is invalid during PID operation.
⋅ When the control is switched to PID control during
normal operation, the frequency command value PID set point
calculated by PID operation using 0Hz as standard is
used without the frequency during the operation.
Frequency
4
command Frequency command
during normal operation
PARAMETERS

PID action ON
Normal operation PID operation Normal operation

Operation when control is switched to PID control during normal operation

♦ Parameters referred to ♦
Pr. 59 Remote function selection Refer to page 152
Pr. 73 Analog input selection Refer to page 263
Pr. 79 Operation mode selection Refer to page 290
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215
C2 (Pr. 902) to C7 (Pr. 905) Frequency setting voltage (current) bias/gain Refer to page 271

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Special operation and frequency control

4.25.2 Bypass-inverter switchover function (Pr. 57, Pr. 58, Pr. 135 to Pr. 139, Pr. 159)

The complicated sequence circuit for bypass operation is built in the inverter. Hence, simply inputting the start,
stop or automatic switchover selection signal facilitates the interlock operation of the switchover magnetic
contactor.

Parameter Initial
Name Setting Range Description
Number Value
⋅ 5.5K, 7.5K ................................................... 1s,
0 ⋅ 11K or higher ............................................... 3.0s,
The above times are coasting time.
57 Restart coasting time 9999
Set the waiting time for inverter-triggered restart after an
0.1 to 5s
instantaneous power failure.
9999 No restart
58 Restart cushion time 1s 0 to 60s Set a voltage starting time at restart.
Electronic bypass 0 Without electronic bypass sequence
135 0
sequence selection 1 With electronic bypass sequence
MC switchover interlock
136 1s 0 to 100s Set the operation interlock time of MC2 and MC3.
time
Set the time slightly longer (0.3 to 0.5s or so) than the time from
137 Start waiting time 0.5s 0 to 100s
when the ON signal enters MC3 until it actually turns on.
0 Inverter output is stopped (motor coast) at inverter fault.
Bypass selection at a Operation is automatically switched to bypass operation at
138 0
fault 1 inverter fault (Not switched when an external thermal relay
operation (E.OHT) or CPU error (E.CPU) occurs).
Set the frequency to switch inverter operation to bypass
operation.
Automatic switchover Inverter operation is performed from a start until Pr. 139 is
0 to 60Hz
139 frequency from inverter 9999 reached, and when the output frequency is at or above Pr.
to bypass operation 139, inverter operation is automatically switched to bypass
operation.
9999 Without automatic switchover
Valid during automatic switchover operation (Pr. 139 ≠ 9999)
When the frequency command decreases below (Pr. 139 -
Pr. 159) after operation is switched from inverter operation to
0 to 10Hz bypass operation, the inverter automatically switches
operation to inverter operation and operates at the
Automatic switchover frequency of frequency command. When the inverter start
frequency range from command (STF/STR) is turned off, operation is switched to
159 9999
bypass to inverter inverter operation also.
operation
Valid during automatic switchover operation (Pr. 139 ≠ 9999)
When the inverter start command (STF/STR) is turned off
9999 after operation is switched from inverter operation to bypass
operation, operation is switched to inverter operation and
the motor decelerates to stop.
⋅ When the motor is operated at 60Hz (or 50Hz), more efficient operation can be performed by the commercial power
supply than by the inverter. When the motor cannot be stopped for a long time for the maintenance/inspection of the
inverter, it is recommended to provide the commercial power supply circuit.
⋅ To switch between inverter operation and bypass operation, an interlock must be provided to stop the motor once
and then start it by the inverter in order to prevent the inverter from resulting in an overcurrent alarm. Using the
electronic bypass sequence function that outputs the timing signal for operation of the magnetic contactor, a
complicated commercial power supply switchover interlock can be provided by the inverter.
CAUTION
Commercial operation can not be performed with the Mitsubishi vector motor (SF-V5RU).

346
 Special operation and frequency control

(1) Connection diagram

⋅ The following shows the connection diagram of a typical electronic bypass sequence. Sink logic, Pr. 185 = "7", Pr.
192 = "17", Pr. 193 = "18", Pr. 194 = "19"

MC2

*1 Take caution for the capacity of the sequence output terminal.

External The used terminal changes depending on the setting of Pr. 190 to
MCCB MC1 thermal relay Pr. 196 (output terminal function selection).
MC3
R/L1 U Output Terminal
S/L2 V IM Output Terminal Capacity
T/L3 W Permissible Load
R1/L11 Inverter open collector output
24VDC 0.1A
S1/L21 (RUN, SU, IPF, OL, FU)
Inverter start MC1
Inverter relay output (A1-C1, B1-
*1
(forward rotation) STF (MC1)IPF 230VAC 0.3A
Inverter/bypass C1, A2-B2, B2-C2)
CS 30VDC 0.3A
Operation interlock MRS MC2 Relay output option (FR-A7AR)
*1
MC3
*3 (MC2)OL *2
External thermal reset JOG(OH) 24VDC
Reset RES *2 When connecting a DC power supply, insert a protective diode.
MC2 MC3
SD *1 When connecting an AC power supply, connect a relay output
(MC3)FU option (FR-A7AR) and use a contact output.
Frequency 10
2 *3 The used terminal changes depending on the setting of Pr. 180 to
setting signal SE
5 Pr. 189 (input terminal function selection).

Electronic bypass sequence connection diagram

CAUTION
⋅ Use the bypass operation function in External operation mode. Be sure to connect the other power supply since the function is
not performed normally unless the connection terminals R1/L11, S1/L21 are not connected to the other power supply (power
supply that does not pass MC1).
⋅ Be sure to provide mechanical interlocks for MC2 and MC3.

⋅ Operations of magnetic contactors (MC1, MC2, MC3)

Operation ({: Shorted, ×: Open)
Magnetic
Installation Place During inverter At an inverter fault
Contactor Bypass operation
operation occurrence
Between power supply and ×
MC1
inverter input (Shorted by reset)
×
(Can be selected using
MC2 Between power supply and motor × Pr. 138, always open
when external thermal
relay is on)
Between inverter output and
MC3 × ×
motor

4
PARAMETERS

347
Special operation and frequency control

⋅ The input signals are as indicated below.

MC Operation *6
Signal Terminal Used Function Operation
MC1 *5 MC2 MC3
ON ..... Bypass-inverter operation
⎯ ⎯
Operation enable/disable enabled
MRS MRS
selection *1 OFF ... Bypass-inverter operation No
×
disabled change
ON...... Inverter operation ×
CS CS Inverter/bypass *2
OFF ... Bypass operation ×
ON...... Forward rotation (reverse
STF Inverter operation command ×
STF(STR) rotation)
(STR) (Invalid for bypass) *3
OFF .... Stop ×
Set "7" in any of ON ..... Motor normal ⎯ ⎯
OH External thermal relay input
Pr. 180 to Pr. 189. OFF .... Motor abnormal × × ×
No No
Operating status initialization ON...... Initialization ×
RES RES change change
*4
OFF .... Normal operation ⎯ ⎯
*1 Unless the MRS signal is turned on, neither bypass operation nor inverter operation can be performed.
*2 The CS signal functions only when the MRS signal is on.
*3 STF (STR) functions only when both the MRS signal and CS signal are on.
*4 The RES signal enables reset input acceptance selection using Pr. 75 Reset selection/disconnected PU detection/PU stop selection.
*5 MC1 turns off when an inverter fault occurs.
*6 MC operation
: MC-ON
× : MC-OFF
⎯ : Inverter operation ................ MC2 is off and MC3 is on
Bypass operation ................ MC2 is on and MC3 is off
No change : The status before the signal turns on or off is held.

⋅ The output signals are as indicated below.

Terminal Used
Signal Description
(Pr. 190 to Pr. 196 setting)
Control signal output of inverter input side magnetic
MC1 17
contactor MC1
Control signal output of bypass operation magnetic
MC2 18
contactor MC2
Control signal output of inverter output side
MC3 19
magnetic contactor MC3

348
 Special operation and frequency control

(2) Electronic bypass operation sequence

⋅ Operation sequence example when there is no automatic switchover sequence (Pr. 139 = "9999")
ON
Power supply
OFF
Operation interlock ON ON : Operation enabled
(MRS) OFF OFF: Operation disabled
Inverter run command ON ON : Forward rotation
(STF) OFF OFF: Stop
ON ON : Inverter operation
Inverter/bypass (CS)
OFF OFF: Bypass operation

Inverter input side MC ON

Off only at inverter alarm
(MC1) OFF

Inverter output side MC ON

(MC3) OFF

MC for bypass ON Indicates the delay time until

operation (MC2) OFF the MC turns on (off).

Pr. 136 MC switchover interlock time

Pr. 137 MC3 start (waiting time)
Pr. 137 Pr. 58
Pr. 57 Reset time
Each timer
Pr. 58 Switchover cushion time
Pr. 57 Pr. 136 Pr. 136 Pr. 57

Operating status
(motor speed)
INV Coasting Bypass Coasting INV Stop
operation operation operation

⋅ Operation sequence example when there is automatic switchover sequence (Pr. 139 ≠ "9999", Pr. 159 = "9999")
ON
STF
OFF
Output frequency Pr. 139

Frequency command

Time
Actual motor speed

Time
INV ON
operation MC3
OFF

Bypass ON
MC2
operation OFF

C A A B C D
A : Pr. 136 MC switchover interlock time B : Pr. 137 Start waiting time
C : Pr. 57 Restart coasting time D : Pr. 58 Restart cushion time
⋅ Operation sequence example when there is automatic switchover sequence (Pr. 139 ≠ "9999", Pr. 159 ≠ "9999")
4
ON
STF
OFF
Output frequency Pr. 139
PARAMETERS

Pr. 159
Frequency command

Time
Actual motor speed

Time
INV ON
operation MC3 OFF

Bypass ON
operation MC2 OFF

C A A B C D A A B C D
A : Pr. 136 MC switchover interlock time B : Pr. 137 Start waiting time
C : Pr. 57 Restart coasting time D : Pr. 58 Restart cushion time

349
Special operation and frequency control

(3) Operating procedure

1)Procedure for operation
Operation pattern
Power supply ON ⋅ Pr. 135 = "1" (open collector output terminal of inverter)
⋅ Pr. 136 = "2.0s"
Setting the parameters ⋅ Pr. 137 = "1.0s" (Set the time longer than the time from when
MC3 actually turns on until the inverter and motor are
Start inverter operation connected. If the time is short, a restart may not function
properly.)
Constant speed bypass ⋅ Pr. 57 = "0.5s"
operation ⋅ Pr. 58 = "0.5s" (Be sure to set this parameter when bypass
operation is switched to inverter operation.)
Deceleration (stop)
inverter operation

2)Signal ON/OFF after parameter setting

MRS CS STF MC1 MC2 MC3 Remarks

Power supply OFF OFF OFF OFF → ON OFF OFF → ON External operation mode
ON (OFF) (OFF) (OFF) (OFF → ON) (OFF) (OFF → ON) (PU operation mode)
At start
OFF → ON OFF → ON OFF → ON ON OFF ON
(inverter)
MC2 turns on after MC3
At constant
turns off
speed
ON ON → OFF ON ON OFF → ON ON → OFF (coasting status during this
(commercial
period)
power supply)
Waiting time 2s
MC3 turns on after MC2
Switched to
turns off
inverter for
ON OFF → ON ON ON ON → OFF OFF → ON (coasting status during this
deceleration
period)
(inverter)
Waiting time 4s
Stop ON ON ON → OFF ON OFF ON

CAUTION
⋅ Connect the control power supply (R1/L11, S1/L21) in front of input side MC1. If the control power supply is connected behind
input side MC1, the electronic bypass sequence function is not executed.
⋅ The electronic bypass sequence function is valid only when Pr. 135 = "1" in the External operation or combined operation mode
(PU speed command, external operation command Pr. 79 = "3"). When Pr. 135 = "1" in the operation mode other than the above,
MC1 and MC3 turn on.
⋅ When the MRS and CS signals are on and the STF (STR) signal is off, MC3 is on, but when the motor was coasted to a stop
from bypass operation last time, a start is made after the time set in Pr. 137 has elapsed.
⋅ Inverter operation can be performed when the MRS, STF (STR) and CS signals turn on. In any other case (MRS signal - ON),
bypass operation is performed.
⋅ When the CS signal is turned off, the motor switches to bypass operation. However, when the STF (STR) signal is turned off,
the motor is decelerated to a stop in the inverter operation mode.
⋅ When both MC2 and MC3 are off and either MC2 or MC3 is then turned on, there is a waiting time set in Pr. 136.
⋅ If electronic bypass sequence is valid (Pr. 135 = "1"), the Pr. 136 and Pr. 137 settings are ignored in the PU operation mode. The
input terminals (STF, CS, MRS, OH) of the inverter return to their normal functions.
⋅ When the electronic bypass sequence function (Pr. 135 = "1") and PU operation interlock function (Pr. 79 = "7") are used
simultaneously, the MRS signal is shared by the PU operation external interlock signal unless the X12 signal is assigned.
(When the MRS and CS signals turn on, inverter operation is enabled)
⋅ Changing the terminal function using any of Pr. 178 to Pr. 189, 190 to Pr. 196 may affect the other functions. Set parameters after
confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 11 DC injection brake operation time Refer to page 185
Pr. 57 Restart coasting time Refer to page 243
Pr. 58 Restart cushion time Refer to page 243
Pr. 79 Operation mode selection Refer to page 290
Pr. 178 to Pr. 189 (Input terminal function selection) Refer to page 207
Pr. 190 to Pr. 196 (Output terminal function selection) Refer to page 215

350
 Special operation and frequency control

4.25.3 Load torque high speed frequency control (Pr. 4, Pr. 5, Pr. 270 to Pr. 274)

Load torque high speed frequency control is a function <Without high-speed <With high-speed
which automatically sets the operational maximum frequency control> frequency control>
frequency according to the load. Light

The load size during power driving is estimated by

detecting average currents at set timings after a start.
Faster
When the load is light, the frequency is increased from
the originally-set frequency. (During regenerative
Whether there is a load or The lift with a light load or without
driving, the frequency is not increased.) not, the lift is moved a load is moved faster than the lift
This function is designed to increase speed vertically at the same speed. with a load.
(The output frequency is increased
automatically under light load, for example to minimize only during power driving.)
the incoming/outgoing time in a multi-story parking lot.

Parameter Initial Setting

Name Description
Number Value Range
Multi-speed setting (high
4 60Hz 0 to 400Hz Set the higher-speed frequency.
speed)
Multi-speed setting (middle
5 30Hz 0 to 400Hz Set the lower-speed frequency.
speed)
0 Normal operation
Stop-on contact/load
1 Stop-on-control (refer to page 190)
torque high-speed
270 0 2 Load torque high speed frequency control
frequency control
selection Stop-on-contact (refer to page 190) + load torque high
3
speed frequency control
High-speed setting
271 * 50% 0 to 220%
maximum current Set the upper and lower limits of the current at high and
Middle-speed setting middle speeds.
272 * 100% 0 to 220%
minimum current
Average current during acceleration from (Pr. 273 × 1/2)
0 to 400Hz
Hz to (Pr. 273) Hz can be achieved.
273 * Current averaging range 9999
Average current during acceleration from (Pr. 5 × 1/2) Hz
9999
to (Pr. 5) Hz is achieved.
Set the time constant of the primary delay filter relative to
the output current.
Current averaging filter
274 * 16 1 to 4000 The time constant [ms] is 0.75 × Pr. 274 and the initial
time constant
value is 12ms.
A larger setting provides higher stability but poorer response.
* This parameter allows its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.

<Connection diagram>
MC
Sink logic
Pr. 186 = 19 Mechanical
brake
4
MCCB
PARAMETERS

R/L1 U
Power supply S/L2 V Motor
T/L3 W
Start signal STF

Load torque high-speed frequency CS(X19)*

SD
* The used terminal changes according to the Pr. 180 to Pr. 189 (input terminal function selection) settings.

351
Special operation and frequency control

(1) Load torque high speed frequency control setting

· Set "2 or 3" in Pr. 270 Stop-on contact/load torque high-speed frequency control selection.
· When operating with the load torque high speed frequency function selection signal (X19) on, the inverter
automatically changes the maximum frequency within the setting range of Pr. 4 Multi-speed setting (high speed) and
Pr. 5 according to the magnitude of the average current during the time to accelerate from 1/2 of the frequency set
in Pr. 5 Multi-speed setting (middle speed) to the frequency set in Pr. 5 .
· Set "19" in Pr. 178 to Pr. 189 (input terminal function selection) and assign the X19 signal function to the input terminal.
· Made valid only in the External operation mode.
· This control can be activated at every start.
(2) Operation of load torque high speed frequency control setting
· When the average current of the current averaging range (A in the chart below) during operation with the X19
signal on is less than the "rated inverter current × Pr. 271 setting (%)", the maximum frequency automatically
becomes the Pr. 4 Multi-speed setting (high speed) setting value.
· When the average current of the current averaging range (B in the chart below) during operation with the X19
signal on is more than the "rated inverter current × Pr. 272 setting (%)", the maximum frequency automatically
becomes the Pr. 5 Multi-speed setting (middle speed) setting value.
· During regeneration load operation, setting of Pr. 5 is the maximum frequency regardless of the average current.
Output frequency

Power running Reganerating

Pr. 4

Pr. 5
1
Pr. 5
2

A B Time
Current averaging range Current averaging range
Less than Pr. 272 setting rated current
Pr. 271 setting rated current or more
STF
ON OFF ON OFF ON OFF
(STR)
X19 ON OFF ON OFF

· The current averaging range can be set between 1/2 frequency of the Pr. 273 setting value and Pr. 273 set frequency.
Frequency

Pr. 4
(60Hz)
Pr. 5
(30Hz)

Pr. 271 Pr. 272 Average current

(50%) (100%)

Value in parenthesis is initial value.

CAUTION
· When the current averaging range includes the constant power range, the output current may become large in the constant
power range.
· When the average current value in the current averaging range is small, deceleration time becomes longer as the running
frequency increases.
· The maximum output frequency is 120Hz. The output frequency is 120Hz even when the setting is above 120Hz.
· The automatic restart after instantaneous power failure function and the fast-response current limit operation are invalid.
· Changing the terminal function using any of Pr. 178 to Pr. 189 may affect the other functions. Set parameters after confirming the
function of each terminal.
· The load torque high speed frequency function is invalid in the following operation conditions.
PU operation (Pr. 79) , PU+external operation (Pr. 79) , JOG operation (JOG signal) , PID control function operation (X14 signal),
remote setting function operation (Pr. 59), orientation control function operation, multi-speed setting (RH, RM, RL signal ), 16 bit
digital input option (FR-A7AX)
· When the average current during acceleration is too small, it may be judged as regeneration and the maximum frequency
becomes the setting of Pr. 5.

352
 Special operation and frequency control

CAUTION
When the load is light, the motor may suddenly accelerate to 120Hz maximum, causing hazard.
Securely provide mechanical interlock on the machine side to perform.

♦ Parameters referred to ♦
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27 (multi-speed setting) Refer to page 148
Pr. 59 Remote function selection Refer to page 152
Pr. 79 Operation mode selection Refer to page 290
Pr. 128 PID action selection Refer to page 338
Pr. 178 to Pr. 189 (input terminal function selection) Refer to page 207

4
PARAMETERS

353
Special operation and frequency control

4.25.4 Droop control (Pr. 286 to Pr. 288) Magnetic flux Sensorless Vector

This function is designed to balance the load in proportion to the load torque to provide the speed drooping
characteristic under Advanced magnetic flux vector control, Real sensorless vector control and vector control.
This function is effective for balancing the load when using multiple inverters

Parameter Initial Setting

Name Description
Number Value Range
0 Normal operation
286 Droop gain 0% Droop control is valid
0.1% to
Set the drooping amount at the rated torque as a
100%
percentage with respect to the rated motor frequency.
Set the time constant of the filter applied on the torque
287 Droop filter time constant 0.3s 0 to 1s
current.
Droop control is not exercised during acceleration/
0
deceleration.
Droop control is always exercised during operation. (with
1
0 limit)
Droop function activation Droop control is always exercised during operation.
288 0 2
selection (without 0 limit)
Droop control is not exercised during acceleration/
10
deceleration. (Motor speed is referenced)
Droop control is always exercised during operation.
11
(Motor speed is referenced)

(1) Droop control

Frequency
· The output frequency is changed according to
Rated frequency

Droop compensation
frequency the magnitude of torque current under
Droop Advanced magnetic flux vector control, Real
gain sensorless vector control and vector control.
The drooping amount at the rated torque is set
by the droop gain as a percentage using the
rated frequency (Motor speed when Pr. 288 =
"10, 11") as a reference.
-100% 0 100% Torque
· The maximum droop compensation frequency
is 120Hz.
When Pr. 288 = "0 to 2", or under Advanced magnetic flux vector control
Torque current after filtering Rated motor frequency × Droop gain
Droop compensation frequency = ×
Rated value of torque current 100
When Pr. 288 = "10, 11"
Torque current after filtering Motor speed × Droop gain
Droop compensation frequency = ×
Rated value of torque current 100

REMARKS
Set the droop gain to about the rated slip of the motor.
Synchronous speed at base frequency - Rated speed
Rated slip =
Synchronous speed at base frequency
× 100[%]

354
 Special operation and frequency control

(2) Limit the frequency after droop compensation (0 limit)

· Setting Pr. 288 under Real sensorless vector control or vector control can limit the frequency command when the
frequency after droop compensation is negative.
Description
Pr. 288
Setting Under Real sensorless vector control
Under Advanced magnetic flux vector control
or vector control
Droop control is not exercised during acceleration/
deceleration.
0
Note that the frequency command is limited at 0Hz when
(initial value),
the frequency command after droop control is negative.
10
When Pr. 288 = "10", droop compensation amount is
Droop control is not exercised during acceleration/ determined using the motor speed as reference.
deceleration. Droop control is always exercised during operation.
Note that the frequency command after droop control is Note that the frequency command is limited at 0Hz when
1, 11 limited at 0.5Hz when the frequency command after the frequency command after droop control is negative.
droop control is negative. When Pr. 288 = "11", droop compensation amount is
Droop compensation amount is determined using the determined using the motor speed as reference.
rated motor frequency as reference. Droop control is always exercised during operation.
Note that under vector control, the frequency command
is not limited at 0Hz even when the frequency command
2
after droop control is negative.
(The frequency command is limited at 0Hz under Real
sensorless vector control.)

REMARKS
The maximum value of frequency after droop compensation is either 120Hz or Pr. 1 Maximum frequency , whichever is smaller.

♦ Parameters referred to ♦
Pr. 1 Maximum frequency Refer to page 140

4
PARAMETERS

355
Special operation and frequency control

4.25.5 Frequency setting by pulse train input (Pr. 291, Pr. 384 to Pr. 386)

The inverter speed can be set by inputting pulse train from terminal JOG.
In addition, synchronous speed operation of inverters can be performed by combining pulse train I/O.

Parameter Initial Setting

Name Description
Number Value Range
Pulse train input Pulse train output
0 Terminal JOG FM output
1 Pulse train input FM output
10 Terminal JOG High speed pulse train output (50%Duty)
11 Pulse train input High speed pulse train output (50%Duty)
High speed pulse train output (ON width is
291 Pulse train I/O selection 0 20 Terminal JOG
always same)
High speed pulse train output (ON width is
21 Pulse train input
always same)
High speed pulse train output (ON width is
always same)
100 Pulse train input
The inverter outputs the signal input as
pulse train as it
0 Pulse train input invalid
Input pulse division Indicates division scaling factor to the input pulse and the
384 0
scaling factor 1 to 250 frequency resolution to the input pulse changes according to
the value.
Frequency for zero input
385 0Hz 0 to 400Hz Set the frequency when the input pulse is 0 (bias).
pulse
Frequency for maximum
386 60Hz 0 to 400Hz Set the frequency when the input pulse is maximum (gain).
input pulse

(1) Pulse train input selection (Pr. 291)

· Setting any of "1, 11, 21, 100" in Pr. 291 Pulse train I/O selection and a value other than "0" in Pr. 384 Input pulse division
scaling factor switches terminal JOG to pulse train input terminal and frequency setting of the inverter can be
performed. (The initial value is JOG signal)
Pulse train input of maximum of 100k pulse/s is enabled.
· Output specifications (high speed pulse train output or FM output) of terminal FM can be selected using Pr. 291.
Connection with an open collector output system Connection with a complementary output system
pulse generator pulse generator
Sink logic Sink logic
Inverter Inverter

PC PC

Pull up resistance *
JOG JOG
24V power
2kΩ 2kΩ
SD SD

Connection with an open collector output system Connection with a complementary output system
pulse generator pulse generator
Source logic Source logic
Inverter Inverter
PC
PC

JOG 2kΩ JOG 2kΩ

24V power

Pull down resistance *

SD SD

356
 Special operation and frequency control

* When the wiring length of the open collector output connection is long, input pulse can not be recognized because of a pulse shape deformation due to the
stray capacitances of the wiring.
When wiring length is long (10m or more of 0.75mm2 twisted cable is recommended), connect an open collector output signal and power supply using a pull
up resistance. The reference of resistance value to the wiring length is as in the table below,
Wiring Length Less than 10m 10 to 50m 50 to 100m
Pull up/down resistance Not necessary 1kΩ 470Ω
Load current (for reference) 10mA 35mA 65mA
Stray capacitances of the wiring greatly differ according to the cable type and cable laying, the above cable length is not a guaranteed value.
When using a pull up/down resistance, check the permissible power of the resistor and permissible load current of output transistor and use them within a
permissible range.

REMARKS
· When pulse train input is selected, a function assigned to terminal JOG using Pr. 185 JOG terminal function selection is invalid.
· When Pr. 419 Position command source selection = "2" (simple position pulse train command by inverter pulse train input), JOG
terminal serves as simple position pulse train terminal regardless of the Pr. 291.

CAUTION
· Since Pr. 291 is a selection parameter for pulse train output/FM output, check the specifications of a device connected to
terminal FM when changing the setting value. (Refer to page 236 for pulse train output.)
· Output specifications (high speed pulse train output or FM output) of terminal FM can be selected using Pr. 291. Change the
setting value using care not to change output specifications of terminal FM. (Refer to page 236 for pulse train output.)

zPulse train input specifications

Item Specifications
Open collector output
Available pulse method Complementary output
(power supply voltage 24V)
H input level 20V or more (voltage between JOG-SD)
L input level 5V or less (voltage between JOG-SD) * The wiring length of complementary
Maximum input pulse rate 100kpps output depends on the output wiring
Minimum input pulse width 2.5us specifications of complementary
Input resistance/load current 2kΩ (typ) / 10mA (typ) output device.
Stray capacitances of the wiring
Maximum wiring Open collector output system 10m (0.75mm2/ twisted pair) greatly differ according to the cable
length type and cable laying, the
(reference value) Complementary output system 100m (output resistance 50Ω) *
maximum cable length is not a
Detection resolution 1/3750 guaranteed value.

(2) Adjustment of pulse train input and frequency

Limit value *
(Pr. 385, Pr. 386 )
60Hz
Pr. 386
· Frequency for zero input pulse can be set using Pr. 385
Frequency for zero input pulse and frequency at maximum input
frequency

pulse can be set using Pr. 386 Frequency for maximum input
Output

pulse.

(Hz) * Limit value can be calculated from the following formula.

Input pulse (Pr. 386 - Pr. 385 ) × 1.1 + Pr. 385
0Hz (pulse/s)
0 Maximum input pulse
Pr. 385

4
(3) Calculation method of division scaling factor of input pulse (Pr. 384 )
· Maximum input pulse can be calculated from the following formula using Pr. 384 Input pulse division scaling factor.
PARAMETERS

Maximum of input pulse (pulse/s) = Pr. 384 × 400

(maximum of 100kpulse/s)
Detectable pulse = 11.45 pulse/s

· For example, when you want to operate at 0Hz when pulse train input is zero and operate at 30Hz when pulse train
is 4000 pulse/s, set parameters as below.
Pr. 384 = 10
(maximum input pulse 4000 pulse/s)
Pr. 385 = 0Hz, Pr. 386 = 30Hz
(pulse train limit value is 33Hz)
REMARKS
The priorities of the frequency commands by the external signals are "jog operation > multi-speed operation > terminal 4 analog
input > pulse train input".
When pulse train input is valid (when Pr. 291 = "1, 11, 21, or 100" and Pr. 384 ≠ "0"), terminal 2 analog input is invalid.

357
Special operation and frequency control

(4) Synchronous speed operation by pulse I/O

Inverter (master) Pull up To next inverter (slave)

resistance*
PC
Speed Speed
command Pulse train command
JOG input FM
FM JOG
Pulse train
To next inverter (slave)
Pulse train
output output SD
SD SD

* When the wiring length between FM and JOG is long, a pulse shape is deformed due to the stray capacitances of the wiring and input pulse can not be
recognized.
When wiring length is long (10m or more of 0.75mm2 twisted cable is recommended), connect terminal JOG and terminal PC using an external pull up
resistance. The reference of resistance value to the wiring length is as in the table below.
Wiring Length Less than 10m 10 to 50m 50 to 100m
Pull up resistance Not necessary 1kΩ 470Ω
Load current (for
10mA 35mA 65mA
reference)
Stray capacitances of the wiring greatly differ according to the cable type and cable laying, the above cable length is not a guaranteed value.
When using a pull up resistance, check the permissible power and permissible load current (terminal PC : 100mA, high speed pulse train output : 85mA) of the
resistor and use them within a permissible range.

· By setting "100" in Pr. 291, pulse train input can be output at pulse train output (terminal FM) as it is.
Synchronous speed operation of multiple inverters can be enabled by daisy chain connection.
· Since maximum pulse train output is maximum of 50k pulse/s, set "125" in Pr. 384 of the inverter receiving pulse train.
· When operating two or more inverters synchronously, perform wiring according to the following steps. (so that 24V
contact input will not be applied to terminal FM)
1) Set pulse train output (a value other than "0, 1") in Pr. 291 of the master side inverter.
2) Turn off the inverter power
3) Perform wiring of the master side terminal FM-SD and slave side terminal JOG-SD
4) Turn on the inverter power
CAUTION
· After changing a setting value of Pr. 291 , connect JOG terminal between terminal FM and SD. Take note that a voltage should
not be applied to terminal FM specially when FM output (voltage output) pulse train is selected.
· For the slave side inverter, use sink logic (factory setting). The inverter will not function properly if source logic is selected.

zSpecifications of synchronous speed operation

Item Specifications
Output pulse type Pulse width is fixed (10μs)
Pulse rate 0 to 50kpps
Pulse transmission delay 1 to 2μs per inverter *
* When a pulse transmission delay in a slave is approximately 1 to 2μs and wiring length is long, the delay further increases.

♦ Parameters referred to ♦
Pr. 291 (pulse train output ) Refer to page 236

358
 Special operation and frequency control

4.25.6 Encoder feedback control (Pr. 144, Pr. 285, Pr. 359, Pr. 367 to Pr. 369)
V/F Magnetic flux

This controls the inverter output frequency so that the motor speed is constant to the load variation by detecting the
motor speed with the speed detector (encoder) to feed it back to the inverter.
Option FR-A7AP is necessary.

Parameter Initial
Name Setting Range Description
Numbers Value
0, 2, 4, 6, 8, 10,
Set the number of motor poles when performing
144 Speed setting switchover 4 102, 104, 106,
encoder feedback control under V/F control.
108, 110
Overspeed detection If (detected frequency) - (output frequency) > Pr. 285
frequency 0 to 30Hz during encoder feedback control, the inverter fault
285 9999
(Speed deviation excess (E.MB1) is provided.
detection frequency) *1 9999 Overspeed is not detected.

CW
A
0
Encoder
Clockwise direction as viewed
from A is forward rotation
359 *2 Encoder rotation direction 1
CCW
A
1 Encoder
Counter clockwise direction as
viewed from A is forward rotation
0 to 400Hz Set the range of speed feedback control.
367 *2 Speed feedback range 9999
9999 Encoder feedback control is invalid
368 *2 Feedback gain 1 0 to 100 Set when the rotation is unstable or response is slow.
Set the number of pulses of the encoder.
369 *2 Number of encoder pulses 1024 0 to 4096
Set the number of pulses before multiplied by four.
*1 When exercising vector control with FR-A7AP/FR-A7AL (option), this parameter changes to excessive speed deviation detection frequency.
(For details, refer to page 100)
*2 The above parameters can be set when the FR-A7AP/FR-A7AL (option) is mounted.

(1) Setting before the operation (Pr. 144, Pr. 359, Pr. 369 )
⋅ When performing encoder feedback control under V/F control, set the number of motor poles in Pr. 144 Speed setting
switchover according to the motor used. Because the number of motor poles is set in Pr. 81 Number of motor poles
under Advanced magnetic flux vector control, it is unnecessary to change Pr. 144.
⋅ Set the rotation direction and the number of encoder pulses of the encoder using Pr. 359 Encoder rotation direction and
Pr. 369 Number of encoder pulses.
REMARKS
⋅ When "0, 10, 110" is set in Pr. 144 and run the inverter, fault E.1 to E.3 occurs. 4
⋅ When "102, 104, 106, 108" is set in Pr. 144, the value subtracting 100 is set as the number of motor poles.
⋅ Setting Pr. 81 Number of motor poles changes the Pr. 144 setting automatically. However, changing the Pr. 144 setting will not
change the Pr. 81 setting automatically.
PARAMETERS

CAUTION
⋅ If the number of motor poles is wrong, control at correct speed can not be performed. Always check before operation.
⋅ Encoder feedback control can not be performed when the setting of encoder rotation direction is wrong. (Inverter operation is
enabled.)
Encoder rotation direction can be checked with the rotation direction display of the parameter unit.

359
Special operation and frequency control

(2) Selection of encoder feedback control (Pr. 367 )

⋅ When a value other than "9999" is set in Pr. 367 Speed
Speed feedback range Regeneration load
feedback range, encoder feedback control is valid.
Driven load
Using the set point (frequency at which stable speed
operation is performed) as reference, set the higher and
Set value lower setting range. Normally, set the frequency
(Set command)
converted from the slip amount (r/min) of the rated motor
speed (rated load). If the setting is too large, response
becomes slow.

Example: Rated speed of a 4-pole motor is 1740r/min (60Hz)

Slip Nsp = Synchronous speed - Rated speed Frequency equivalent to slip (fsp)
= 1800 - 1740 = 60(r/min) Nsp × Number of poles 60 × 4
fsp = = = 2 (Hz)
120 120

(3) Feedback gain (Pr. 368 )

⋅ Set Pr. 368 Feedback gain when the rotation is unstable or response is slow.
⋅ If the acceleration/deceleration time is long, feedback response becomes slower. In this case, increase the Pr. 368
setting.
⋅

Pr. 368 Setting Description

Pr. 368 > 1 Although the response becomes faster, overcurrent or unstable rotation is liable to occur.
1 < Pr. 368 Although the response becomes slower, the motor rotation becomes stable.

(4) Overspeed detection (Pr. 285 )

⋅ If (detection frequency) - (output frequency) > Pr. 285 under encoder feedback control, E.MB1 occurs and the inverter
output is stopped to prevent malfunction when the accurate pulse signal from the encoder can not be detected.
Overspeed is not detected when Pr. 285 = "9999".
CAUTION
⋅ The encoder should be coupled on the same axis with the motor shaft without any mechanical looseness with a speed ratio of
1 to 1.
⋅ During acceleration/deceleration, encoder feedback control is not performed to prevent unstable phenomenon such as hunting.
⋅ Encoder feedback control is performed once output frequency has reached within [set speed] ± [speed feedback range].
⋅ If the following conditions occur during encoder feedback control, the inverter operates at the frequency within [set speed] ±
[speed feedback range] without coming to trip nor tracking the motor speed.
⋅ The pulse signals are not received from the encoder due to a signal loss, etc.
⋅ The accurate pulse signal from the encoder can not be detected due to induction noise, etc.
⋅ The motor has been forcibly accelerated (regeneration) or decelerated (motor lock or the like) by large external force.
⋅ For the motor with brake, use the RUN signal (inverter running) to open the brake. (The brake may not be opened if the FU
(output frequency detection) signal is used.)
⋅ Do not turn off the external power supply of the encoder during encoder feedback control. Encoder feedback control functions
abnormally.

♦ Parameters referred to ♦
Pr. 81 Number of motor poles Refer to page 131

360
 Special operation and frequency control

4.25.7 Regeneration avoidance function (Pr. 665, Pr. 882 to Pr. 886)
This function detects a regenerative status and increases the frequency to avoid the regenerative status.
Possible to avoid regeneration by automatically increasing the frequency and continue operation if the fan
happens to rotate faster than the set speed due to the effect of another fan in the same duct.

Parameter Initial Setting

Name Description
Number Value Range
0 Regeneration avoidance function invalid
Regeneration
1 Regeneration avoidance function is always valid
882 avoidance operation 0
selection Regeneration avoidance function is valid only during a constant
2
speed operation
200V 380V Set the bus voltage level at which regeneration avoidance
Regeneration class DC operates. When the bus voltage level is set to low, overvoltage
300 to
883 avoidance operation error will be less apt to occur. However, the actual deceleration
400V 760V 800V time increases. The set value must be higher than the power
level
class DC supply voltage × 2 .
0 Regeneration avoidance by bus voltage change ratio is invalid
Regeneration
avoidance at Set sensitivity to detect the bus voltage change ratio
884 0
deceleration 1 to 5 Setting 1 5
detection sensitivity
Detection sensitivity low high
Regeneration Set the limit value of frequency which rises at activation of
0 to 10Hz
avoidance regeneration avoidance function.
885 6Hz
compensation
frequency limit value 9999 Frequency limit invalid
Regeneration
886 avoidance voltage 100% 0 to 200% Adjust responsiveness at activation of regeneration avoidance.
gain A larger setting will improve responsiveness to the bus voltage
change. However, the output frequency could become
Regeneration unstable. When vibration is not suppressed by decreasing the
665 avoidance frequency 100% 0 to 200% Pr. 886 setting, set a smaller value in Pr. 665.
gain

(1) What is regeneration avoidance function? (Pr. 882, Pr. 883)

⋅ When the regenerative status is serious, the DC bus voltage rises and an overvoltage fault (E. OV ) may occur.
When this bus voltage rise is detected and the bus voltage level reaches or exceeds Pr. 883, increasing the
frequency avoids the regenerative status.
⋅ For regeneration avoidance operation, you can select whether it is always activated or activated only at a constant
speed.

Regeneration avoidance operation Regeneration avoidance operation Regeneration avoidance operation

example for acceleration example for constant speed example for deceleration
Bus voltage
Bus voltage

Pr. 883
(VDC)

Pr. 883
Bus voltage

(VDC)

Pr. 883
(VDC)

Time
frequency(Hz)

Time
frequency(Hz)

Time
Output
frequency(Hz)

Output
Output

During regeneration
avoidance function operation During regeneration 4
Time avoidance function operation Time
During regeneration Time
PARAMETERS

avoidance function operation

⋅ Setting Pr. 882 to "1, 2" validates the regeneration avoidance function.

REMARKS
⋅ The inclination of the frequency increased or decreased by the regeneration avoidance function changes depending on the
regenerative status.
⋅ The DC bus voltage of the inverter is normally about 2 times greater than the input voltage.
When the input voltage is 220VAC (440VAC), the bus voltage is about 311VDC (622VDC).
However, it varies with the input power supply waveform.
⋅ The Pr. 883 setting should be kept higher than the DC bus voltage level. Otherwise, the regeneration avoidance function is
always on even if the non-regeneration status and the frequency increases.
⋅ While overvoltage stall ( ) is activated only during deceleration and stops the decrease in output frequency, the regeneration
avoidance function is always on (Pr. 882 = 1) or activated only during a constant speed (Pr. 882 = 2) and increases the frequency
according to the regeneration amount.

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Special operation and frequency control

(2) To detect the regenerative status during deceleration faster (Pr. 884)
⋅ As the regeneration avoidance function cannot respond to an abrupt voltage change by detection of the bus
voltage level, the ratio of bus voltage change is detected to stop deceleration if the bus voltage is less than Pr. 883
Regeneration avoidance operation level.
Set that detectable bus voltage change ratio to Pr. 884 as detection sensitivity.
Increasing the setting raises the detection sensitivity.
CAUTION
Too small setting (low detection sensitivity) will disable detection, and too large setting will turn on the regeneration avoidance
function if the bus voltage is varied by an input power change, etc.

(3) Limit regeneration avoidance operation frequency (Pr. 885)

You can limit the output frequency compensated for (increased) by
the regeneration avoidance function.
⋅ The frequency is limited to the output frequency (frequency prior to
Limit level regeneration avoidance operation) + Pr. 885 Regeneration avoidance
frequency(Hz)

Output frequency (Hz) compensation frequency limit value during acceleration or constant
Output

Pr.885 speed. If the frequency increased by regeneration avoidance

function exceeds the limit value during deceleration, the limit value
is held until the output frequency falls to 1/2 of Pr. 885.
Pr.885/2
⋅ When the frequency increased by regeneration avoidance function
Time
has reached Pr. 1 Maximum frequency, it is limited to the maximum
frequency.
⋅ Pr. 885 is set to "9999", regeneration avoidance function operation
frequency setting is invalid.

(4) Regeneration avoidance function adjustment (Pr. 665, Pr. 886)

⋅ If the frequency becomes unstable during regeneration avoidance operation, decrease the setting of Pr. 886
Regeneration avoidance voltage gain. Reversely, if sudden regeneration causes an overvoltage alarm, increase the
setting.
⋅ When vibration is not suppressed by decreasing the Pr. 886 Regeneration avoidance voltage gain setting, set a smaller
value in Pr. 665 Regeneration avoidance frequency gain.
CAUTION
⋅ When regeneration avoidance operation is performed, (overvoltage stall) is displayed and the OL signal is output. Set the
operation pattern at an OL signal output using Pr.156 Stall prevention operation selection. Set the output timing of the OL signal
using Pr.157 OL signal output timer.
⋅ When regeneration avoidance operation is performed, stall prevention is also activated.
⋅ Under vector control, unusual noise may be generated from the motor during deceleration when using regeneration avoidance
function. To prevent this, make gain adjustment, e.g. by performing easy gain tuning. (Refer to page 88)

♦ Parameters referred to ♦
Pr. 1 Maximum frequency Refer to page 140
Pr. 8 Deceleration time Refer to page 155
Pr. 22 Stall prevention operation level Refer to page 135

362
 Useful functions

4.26 Useful functions

Refer to
Purpose Parameter that must be Set
Page
Increase cooling fan life Cooling fan operation selection Pr. 244 363
Inverter part life display Pr. 255 to Pr. 259 364
To determine the maintenance time Maintenance output function Pr. 503, Pr. 504 367
of parts. Current average value monitor
Pr. 555 to Pr. 557 368
signal
Freely available parameter Free parameter Pr. 888, Pr. 889 370

4.26.1 Cooling fan operation selection (Pr. 244)

You can control the operation of the cooling fan built in the inverter.

Parameter
Name Initial Value Setting Range Description
Number
A cooling fan operates at power on
0 Cooling fan on/off control invalid (The
cooling fan is always on at power on)
Cooling fan on/off control valid
244 Cooling fan operation selection 1
The fan is always on while the inverter is
1 running. During a stop, the inverter status
is monitored and the fan switches on-off
according to the temperature.

⋅ In either of the following cases, fan operation is regarded as faulty, [FN] is shown on the operation panel, and the fan
fault (FAN) and alarm signals are output.
⋅Pr. 244 = "0"
When the fan comes to a stop with power on
⋅Pr. 244 = "1"
When the fan stops during the fan ON command while the inverter is running
⋅ For the terminal used for FAN signal output, set "25" (positive logic) or "125" (negative logic) in any of Pr. 190 to Pr.
196 (output terminal function selection), and for the LF signal, set "98" (positive logic) or "198" (negative logic).
CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 215

4
PARAMETERS

363
Useful functions

4.26.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259)

Degrees of deterioration of main circuit capacitor, control circuit capacitor, cooling fan and inrush current limit
circuit can be diagnosed by monitor.
When any part has approached the end of its life, an alarm can be output by self diagnosis to prevent a fault.
(Use the life check of this function as a guideline since the life except the main circuit capacitor is calculated
theoretically.)
For the life check of the main circuit capacitor, the alarm signal (Y90) will not be output if a measuring method of
(4) is not performed.

Parameter
Name Initial Value Setting Range Description
Number
Display whether the control circuit capacitor,
main circuit capacitor, cooling fan, and each
255 Life alarm status display 0 (0 to 15) parts of the inrush current limit circuit has
reached the life alarm output level or not.
Reading only
Inrush current limit circuit Display the deterioration degree of the inrush
256 100% (0 to 100%)
life display current limit circuit. Reading only
Control circuit capacitor life Display the deterioration degree of the control
257 100% (0 to 100%)
display circuit capacitor. Reading only
Display the deterioration degree of the main
Main circuit capacitor life
258 100% (0 to 100%) circuit capacitor. Reading only
display
The value measured by Pr. 259 is displayed.
Setting "1" and switching the power supply off
starts the measurement of the main circuit
Main circuit capacitor life 0, 1 capacitor life.
259 0
measuring (2, 3, 8, 9) When the Pr. 259 value is "3" after powering on
again, the measuring is completed. Read the
deterioration degree in Pr. 258.

REMARKS
⋅ Since repeated inrush currents at power ON will shorten the life of the converter circuit, frequent starts and stops of the
magnetic contactor must be avoided.

364
 Useful functions

(1) Life alarm display and signal output (Y90 signal, Pr. 255)
⋅ Whether any of the control circuit capacitor, main circuit capacitor, cooling fan and inrush current limit circuit has
reached the life alarm output level or not can be checked by Pr. 255 Life alarm status display and life alarm signal (Y90).

bit 15 7 0
• Pr.255 read • Pr.255 setting read
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
bit0 Control circuit capacitor life
bit1 Main circuit capacitor life Bit image is displayed
bit2 Cooling fan life in decimal
bit3 Inrush current limit circuit life

Inrush
Pr. 255 Bit Cooling Main Circuit Control Circuit
Current Limit
(decimal) (binary) Fan Life Capacitor Life Capacitor Life
Circuit Life
15 1111
14 1110 ×
13 1101 ×
12 1100 × ×
11 1011 ×
10 1010 × ×
9 1001 × ×
8 1000 × × ×
7 0111 ×
6 0110 × ×
5 0101 × ×
4 0100 × × ×
3 0011 × ×
2 0010 × × ×
1 0001 × × ×
0 0000 × × × ×
: With warnings, ×: Without warnings

⋅ The life alarm signal (Y90) turns on when any of the control circuit capacitor, main circuit capacitor, cooling fan and
inrush current limit circuit reaches the life alarm output level.
⋅ For the terminal used for the Y90 signal, set "90" (positive logic) or "190" (negative logic) to any of Pr. 190 to Pr. 196
(output terminal function selection).
REMARKS
⋅ The digital output option (FR-A7AY, FR-A7AR, FR-A7NC) allows the control circuit capacitor life signal (Y86), main circuit
capacitor life signal (Y87), cooling fan life signal (Y88) and inrush current limit circuit life signal (Y89) to be output individually.
CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

(2) Life display of the inrush current limit circuit (Pr. 256)
⋅ The life of the inrush current limit circuit (relay, contactor and inrush resistor) is displayed in Pr. 256.
⋅ The number of contact (relay, contactor, thyristor) ON times is counted, and it is counted down from 100% (zero 4
times) every 1%/10,000 times. As soon as 10% (900,000 times) is reached, Pr. 255 bit 3 is turned ON and also an
alarm is output to the Y90 signal.
PARAMETERS

(3) Control circuit capacitor life display (Pr. 257)

⋅ The deterioration degree of the control circuit capacitor is displayed in Pr. 257 as a life.
⋅ In the operating status, the control circuit capacitor life is calculated from the energization time and temperature,
and is counted down from 100%. As soon as the control circuit capacitor life falls below 10%, Pr. 255 bit 0 is turned
ON and also an alarm is output to the Y90 signal.

365
Useful functions

(4) Main circuit capacitor life display (Pr. 258, Pr. 259)
⋅ The deterioration degree of the main circuit capacitor is displayed in Pr. 258 as a life.
⋅ On the assumption that the main circuit capacitor capacitance at factory shipment is 100%, the capacitor life is
displayed in Pr. 258 every time measurement is made. When the measured value falls to or below 85%, Pr. 255 bit 1
is turned on and also an alarm is output to the Y90 signal.
⋅ Measure the capacitor capacity according to the following procedure and check the deterioration level of the
capacitor capacity.
1) Check that the motor is connected and at a stop.
2) Set "1" (measuring start) in Pr. 259
3) Switch power off. The inverter applies DC voltage to the motor to measure the capacitor capacity while the
inverter is off.
4) After making sure that the power lamp is off, switch on the power supply again.
5) Check that "3" (measuring completion) is set in Pr. 259, read Pr. 258, and check the deterioration degree of the
main circuit capacitor.
Pr. 259 Description Remarks
0 No measurement Initial value
Measurement starts when the
1 Measurement start
power supply is switched off.
2 During measurement
3 Measurement complete Only displayed and cannot be
8 Forced end set
9 Measurement error

REMARKS
⋅ When the main circuit capacitor life is measured under the following conditions, "forced end" (Pr. 259 = "8") or "measuring error"
(Pr. 259 = "9") occurs or it remains in "measuring start" (Pr. 259 = "1").
When measuring, avoid the following conditions beforehand. In addition, even when "measurement completion" (Pr. 259 = "3")
is confirmed under the following conditions, proper measurement can not be taken.
(a) Terminals R1/L11, S1/L21 or DC power supply is connected to the terminal P/+ and N/-.
(b) Switch power on during measuring.
(c) The motor is not connected to the inverter.
(d) The motor is running. (The motor is coasting.)
(e) The motor capacity is two rank smaller as compared to the inverter capacity.
(f) The inverter is tripped or a fault occurred when power is off.
(g) The inverter output is shut off with the MRS signal.
(h) The start command is given while measuring.
⋅ Operating environment: Surrounding air temperature (annual average 40°C (free from corrosive gas, flammable gas, oil mist, dust and dirt))
Output current (80% of the inverter rated current)

POINT
For the accurate life measuring of the main circuit capacitor, perform after more than 3h passed since the turn off of
the power as it is affected by the capacitor temperature.

WARNING
When measuring the main circuit capacitor capacity (Pr. 259 Main circuit capacitor life measuring = "1"), the DC
voltage is applied to the motor for 1s at powering off. Never touch the motor terminal, etc. right after powering off
to prevent an electric shock.

(5) Cooling fan life display

⋅ The cooling fan speed of 50% or less is detected and "FN" is displayed on the operation panel (FR-DU07) and
parameter unit (FR-PU04/FR-PU07). As an alarm display, Pr. 255 bit 2 is turned on and also an alarm is output to
the Y90 signal.
REMARKS
⋅ When the inverter is mounted with two or more cooling fans, "FN" is displayed with one or more fans with speed of 50% or less.
CAUTION
⋅ For replacement of each part, contact the nearest Mitsubishi FA center.

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 Useful functions

4.26.3 Maintenance timer alarm (Pr. 503, Pr. 504)

When the cumulative energization time of the inverter reaches the parameter set time, the maintenance timer
output signal (Y95) is output. (MT) is displayed on the operation panel (FR-DU07).
This can be used as a guideline for the maintenance time of peripheral devices.

Parameter
Name Initial Value Setting Range Description
Number
Display the cumulative energization time of
the inverter in 100h increments.
503 Maintenance timer 0 0 (1 to 9998) Reading only
Writing the setting of "0" clears the
cumulative energization time.
Set the time taken until when the
Maintenance timer alarm output 0 to 9998 maintenance timer alarm output signal
504 9999
set time (Y95) is output.
9999 No function

First power ON
9998
(999800h)
Set "0" in Pr.503
Maintenance
timer Pr.504
(Pr. 503)

Time
Y95 signal OFF ON ON
MT display
⋅ The cumulative energization time of the inverter is stored into the EEPROM every hour and indicated in Pr. 503
Maintenance timer in 100h increments. Pr. 503 is clamped at 9998 (999800h).
⋅ When the Pr. 503 value reaches the time set in Pr. 504 Maintenance timer alarm output set time (100h increments), the
maintenance timer alarm output signal (Y95) is output.
⋅ For the terminal used for the Y95 signal output, assign the function by setting "95" (positive logic) or "195" (negative
logic) to any of Pr. 190 to Pr. 196 (output terminal function selection).
CAUTION
⋅ The cumulative energization time is counted every hour. The energization time of less than 1h is not counted.
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 190 to Pr. 196(output terminal function selection) Refer to page 215

4
PARAMETERS

367
Useful functions

4.26.4 Current average value monitor signal (Pr. 555 to Pr. 557)

The average value of the output current during

constant speed operation and the maintenance Programmable Output Input
controller unit unit
timer value are output as a pulse to the current
Inverter
average value monitor signal (Y93). maintenance
The pulse width output to the I/O module of the time
programmable controller etc. can be used as a
guideline due to abrasion of machines and
elongation of belt and for aged deterioration of
devices to know the maintenance time. parts have
The current average value monitor signal (Y93) is reached their life
output as pulse for 20s as 1 cycle and repeatedly
output during constant speed operation.
Parameter
Name Initial Value Setting Range Description
Number
Set the time taken to average the current during
555 Current average time 1s 0.1 to 1.0s
start pulse output (1s).
Set the time for not obtaining (mask) transient
556 Data output mask time 0s 0.0 to 20.0s
state data.
Current average value
Rated inverter Set the reference (100%) for outputting the
557 monitor signal output 0 to 500A
current signal of the current average value.
reference current
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.

From acceleration to constant speed operation

Output
frequency

Time
1 cycle (20s) Next cycle

Y93 signal
1) Data output mask time 5) End pulse
When the speed has changed to constant output as low pulse
from acceleration/deceleration, Y93 signal is shape for 1 to 16.5s
not output for Pr. 556 time.
4) Maintenance timer pulse
2) Start pulse The maintenance timer value (Pr. 503) is output
Output as Hi pulse shape for 1s (fixed) as Hi output pulse shape for 2 to 9s (16000h to
The output currents are averaged during the time 72000h).
period set in Pr.555. Pr. 503 100h
Signal output time= 5s
40000h
3) Output current average value pulse
The averaged current value is output as low pulse shape for
0.5 to 9s (10 to 180%) during start bit output.
output current average value (A)
Signal output time= 5s
Pr. 557 (A)

⋅ The pulse output of the current average value monitor signal (Y93) is shown above.
⋅ For the terminal used for the Y93 signal output, assign the function by setting "93" (positive logic) or "193" (negative
logic) to any of Pr. 190 to Pr. 194 (output terminal function selection). (The function can not be assigned to Pr. 195 ABC1
terminal function selection and Pr. 196 ABC2 terminal function selection.)

(1) Setting of Pr. 556 Data output mask time

The output current is unstable (transient state) right after the operation is changed from the acceleration/
deceleration state to the constant speed operation. Set the time for not obtaining (mask) transient state data in Pr.
556.
(2) Setting of the Pr. 555 Current average time
The average output current is calculated during Hi output of start bit (1s). Set the time taken to average the current
during start bit output in Pr. 555.

368
 Useful functions

(3) Setting of Pr. 557 Current average value monitor signal output reference current
Set the reference (100%) for outputting the signal of the current average value. Obtain the time to output the signal
from the following formula.
Output current average value
× 5s (output current average value 100%/5s)
Pr. 557 setting
Note that the output time range is 0.5 to 9s, and it is 0.5s when the output current

Signal output time

(s)
average value is less than 10% of the setting value of Pr. 557 and 9s when exceeds 9
180%.
Example)When Pr. 557 = 10A and the average value of output current is 15A 0.5
As 15A/10A × 5s = 7.5, the current average value monitor signal is output 10 180 (%)
as low pulse shape for 7.5s. Output current average value
(4) Output of Pr. 503 Maintenance timer
After the output current average value is output as low pulse shape, the
maintenance timer value is output as high pulse shape. The output time of the
maintenance timer value is obtained from the following formula.

Signal output time

(s)
9
Pr. 503 × 100
× 5s (maintenance timer value 100%/5s)
40000h 2
Note that the output time range is 2 to 9s, and it is 2s when Pr. 503 is less than 16000 72000 (h)
16000h and 9s when exceeds 72000h. Maintenance timer value

REMARKS
⋅ Mask of data output and sampling of output current are not performed during acceleration/deceleration.
⋅ When the speed is changed to acceleration/deceleration from constant speed during start pulse output, the data is judged as
invalid, the start pulse is output as high pulse shape for 3.5s, and the end signal is output as low pulse shape for 16.5s.
The signal is output for at least 1 cycle even when acceleration/deceleration state continues after the start pulse output is
completed.
The speed is changed to deceleration from
Output frequency the constant speed during start pulse output

Time
Previous cycle Invalid cycle (20s) Next cycle
Y93
signal
2) Start pulse 5) End signal
Output as high Output as low pulse
pulse shape for shape for 16.5s
3.5s
⋅ When the output current value (inverter output current monitor) is 0A on completion of the 1 cycle signal output, the signal is not
output until the speed becomes constant next time
⋅ The current average value monitor signal (Y93) is output as low pulse shape for 20s (without data output) under the following
condition.
(a)When the motor is in the acceleration/deceleration state on completion of the 1 cycle signal output
(b)When 1-cycle signal output was ended during restart operation with the setting of automatic restart after instantaneous power
failure (Pr. 57 ≠ "9999")
(c)When automatic restart operation was being performed with automatic restart after instantaneous power failure selected (Pr.
57 ≠ "9999") on completion of the data output mask 4
CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Set
PARAMETERS

parameters after confirming the function of each terminal.

♦ Parameters referred to ♦
Pr. 190 to Pr. 196(output terminal function selection) Refer to page 215
Pr. 503 Maintenance timer Refer to page 367
Pr. 57 Restart coasting time Refer to page 243

369
Useful functions

4.26.5 Free parameter (Pr. 888, Pr. 889)

You can input any number within the setting range 0 to 9999.
For example, the number can be used:
⋅ As a unit number when multiple units are used.
⋅ As a pattern number for each operation application when multiple units are used.
⋅ As the year and month of introduction or inspection.

Parameter
Name Initial Value Setting Range Description
Number
888 Free parameter 1 9999 0 to 9999 Desired values can be input.
Data is held even if the inverter
889 Free parameter 2 9999 0 to 9999
power is turned off.
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.

REMARKS
⋅ Pr. 888 and Pr. 889 do not influence the inverter operation.

370
 Setting of the parameter unit and
operation panel

4.27 Setting of the parameter unit and operation panel

Purpose Parameter that must be Set Refer to Page
Switch the display language of the
PU display language selection Pr. 145 371
parameter unit
Use the setting dial of the operation
panel like a potentiometer for
Operation panel operation selection Pr. 161 371
frequency setting.
Key lock of operation panel
Control of the parameter unit,
PU buzzer control Pr. 990 373
operation panel buzzer
Adjust the LCD contrast of the
PU contrast adjustment Pr. 991 373
parameter unit

4.27.1 PU display language selection (Pr. 145)

You can switch the display language of the parameter unit (FR-PU04/FR-PU07) to another.

Parameter
Name Initial Value Setting Range Description
Number
0 Japanese
1 English
2 Germany
3 French
145 PU display language selection 0
4 Spanish
5 Italian
6 Swedish
7 Finnish

4.27.2 Operation panel frequency setting/key lock selection (Pr. 161)

The setting dial of the operation panel (FR-DU07) can be used like a potentiometer to perform operation.
The key operation of the operation panel can be disabled.

Parameter Setting
Name Initial Value Description
Number Range
Setting dial frequency
0
setting mode
Key lock invalid
Setting dial potentiometer
1
Frequency setting/key lock mode
161 0
operation selection Setting dial frequency
10
setting mode
Key lock valid
Setting dial potentiometer
11
mode
4
PARAMETERS

371
Setting of the parameter unit and
operation panel

(1) Using the setting dial like a potentiometer to set the frequency
Operation example Changing the frequency from 0Hz to 60Hz during operation

Operation Display
1. Screen at power-ON
The monitor display appears.

PU indicator is lit.
2. Press to choose the PU operation
mode.

3. Press to choose the parameter The parameter number

setting mode. previously read appears.

4. Turn until (Pr. 161) appears.

5. Press to read the currently set value.

" " (initial value) appears.

6. Turn to change it to the setting value

" ".

7. Press to set.

Flicker ··· Parameter setting complete!!

8. Mode/monitor check
Press twice to choose
monitor/frequency monitor.

9. Press (or ) to start the inverter.

10. Turn until " " appears.

The flickering frequency is the set frequency.
You need not press .
The frequency flickers for about 5s.

REMARKS
⋅ If the display changes from flickering "60.00" to "0.00", the setting of Pr. 161 Frequency setting/key lock operation selection may not
be "1".
⋅ Independently of whether the inverter is running or at a stop, the frequency can be set by simply turning the dial.
⋅ When the frequency is changed, it will be stored in EEPROM as the set frequency after 10s.

CAUTION
⋅ When setting frequency by turning setting dial, the frequency goes up to the set value of Pr. 1 Maximum frequency (initial value is
120Hz).
Adjust Pr. 1 Maximum frequency setting according to the application.

372
 Setting of the parameter unit and
operation panel

(2) Disable the setting dial and key operation of the operation panel (Press [MODE] long (2s))
⋅ Operation using the setting dial and key of the operation panel can be invalid to prevent parameter change, and
unexpected start or frequency setting.

⋅ Set "10 or 11" in Pr. 161, then press for 2s to make the setting dial and key operation invalid.

⋅ When the setting dial and key operation are invalid, appears on the operation panel. If dial or key

operation is attempted while dial and key operation are invalid, appears (When dial or key is not
touched for 2s, monitor display appears. )

⋅ To make the setting dial and key operation valid again, press for 2s.

REMARKS

⋅ Even if the setting dial and key operation are disabled, the monitor display is valid.

CAUTION
• Release the operation lock to release the PU stop by key operation.

4.27.3 Buzzer control (Pr. 990)

You can make the buzzer "beep" when you press key of the operation panel (FR-DU07) and parameter unit (FR-
PU04/FR-PU07).

Parameter
Name Initial Value Setting Range Description
Number
0 Without buzzer
990 PU buzzer control 1
1 With buzzer
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.

4.27.4 PU contrast adjustment (Pr. 991)

Contrast adjustment of the LCD of the parameter unit (FR-PU04/FR-PU07) can be performed.
Decreasing the setting value makes contrast light.

Parameter
Name Initial Value Setting Range Description
Number
0 : Light
991 PU contrast adjustment 58 ↓ 0 to 63
63: Dark
The above parameters are displayed as simple mode parameters only when the parameter unit (FR-PU04/FR-PU07) is connected.

4
PARAMETERS

373
Parameter clear

4.28 Parameter clear

POINT
· Set "1" in Pr. CL parameter clear to initialize all parameters. (Parameters are not cleared when "1" is set in Pr. 77
Parameter write selection. In addition, calibration parameters are not cleared.)

Operation Display
1.Screen at power-ON
The monitor display appears.

2.Press to choose the PU operation PU indicator is lit.

mode.

The parameter
3.Press to choose the parameter number read
setting mode. previously appears.

4.Turn until " " appears.

5.Press to read the currently set value.

" "(initial value) appears.

6.Turn to change it to the setting value

" ".

7.Press to set.

Flicker ··· Parameter setting complete!!

· Turn to read another parameter.

· Press to show the setting again.

· Press twice to show the next parameter.

Setting Description
0 Not executed.
Returns all parameters to the initial values except for calibration parameters, terminal function
1 selection parameters, etc.
Refer to the list of parameters on page 439 for availability of parameter clear.

and are displayed alternately ... Why?

The inverter is not in PU operation mode.

1. Press .

is lit and the monitor (4-digit LED) displays "0" (Pr. 79 = "0" (initial value)).
2. Carry out operation from step 6 again.

374
 All parameter clear

4.29 All parameter clear

POINT
· Set "1" in ALLC parameter clear to initialize all parameters. (Parameters are not cleared when "1" is set in Pr. 77
Parameter write selection.)

Operation Display
1.Screen at power-ON
The monitor display appears.

2.Press to choose the PU operation PU indicator is lit.

mode.

The parameter
3.Press to choose the parameter number read
setting mode. previously appears.

4.Turn until (all parameter

clear) appears.

5.Press to read the currently set

value.
" "(initial value) appears.

6.Turn to change it to the setting value

" ".

7.Press to set.

Flicker ··· Parameter setting complete!!

· Press to read another parameter.

· Press to show the setting again.

· Press twice to show the next parameter.

Setting Description
0 Not executed.
All parameters return to the initial values. Refer to the list of parameters on page 439 for
1 availability of all parameter clear.
Refer to the list of parameters on page 439 for availability of parameter clear.

and are displayed alternately ... Why?

The inverter is not in the PU operation mode. 4

1. Press .
PARAMETERS

is lit and the monitor (4-digit LED) displays "0" (Pr. 79 = "0" (initial value)).
2. Carry out operation from step 6 again.

375
Parameter copy and parameter verification

4.30 Parameter copy and parameter verification

PCPY Setting Description
0 Cancel
1 Copy the source parameters to the operation panel.
2 Write the parameters copied to the operation panel into the destination inverter.
3 Verify parameters in the inverter and operation panel. (Refer to page 377.)
REMARKS
· When the copy destination inverter is not the FR-A701 series or parameter copy write is performed after parameter copy read is
stopped, "model error ( )" is displayed.
· Refer to the parameter list on page 439 and later for availability of parameter copy.
· When the power is turned OFF or an operation panel is disconnected, etc. during parameter copy write, perform write again or
check the values by parameter verification.
· Initial settings of certain parameters are different for different capacities, so some parameter settings may be automatically
changed when parameter copy is performed from a different-capacity inverter. After performing a parameter copy from a
different-capacity inverter, check the parameter settings. (Refer to the parameter list (page 103) for the parameters with different
initial settings for different capacities.)

4.30.1 Parameter copy

Parameter settings can be copied to multiple inverters.

Operation Display
1.Connect the operation panel to the
copy source inverter.
• Connect it during a stop.

The parameter
2.Press to choose the parameter
number previously
setting mode. read appears.

3.Turn until (parameter copy)

appears.

4.Press to to read the currently set value.

" "(initial value) appears.

5.Turn to change it to the setting value

" ".

6.Press to copy the source parameters Flickers for about 30s

to the operation panel.
About 30s later

Flicker ··· Parameter copy complete!!

7.Connect the operation panel to the
copy source inverter.

8.After performing steps 2 to 5,

turn to change it to " ".

9.Press to write the parameters copied to The frequency flickers

for about 30s
the operation panel to the destination inverter.

10.When copy is completed,

" " and " " flicker.
Flicker ··· Parameter copy complete!!
11.After writing the parameter values to the copy
destination inverter, always reset the inverter,
e.g. switch power OFF once, before starting operation.

376
 Parameter copy and parameter verification

appears...Why? Parameter read error. Perform operation from step 3 again.

appears...Why? Parameter write error. Perform operation from step 8 again.

4.30.2 Parameter verification

Whether same parameter values are set in other inverters or not can be checked.

Operation Display
1.Move the operation panel to the
inverter to be verified.
• Move it during a stop.

2.Screen at power-ON
The monitor display appears.

3.Press to choose the parameter The parameter

setting mode. number read
previously appears.

4.Turn until (parameter copy)

appears.

5.Press to read the currently set

value.
" "(initial value) appears.

6.Turn to change it to the set value

" "(parameter copy verification mode).

7.Press to read the parameter setting

Flickers for about 30s
of the verified inverter to the operation panel.

• If different parameters exist, different

parameter numbers and flicker.

• Hold down to verify. Flickering

8.It there is no difference, " " and " "

flicker to complete verification.
Flicker ··· Parameter verification complete!!
4
flickers ... Why?
Set frequencies, etc. may be different. Check set frequencies.
PARAMETERS

377
Check and clear of the faults history

4.31 Check and clear of the faults history

(1) Check for the faults history

Monitor/frequency setting Parameter setting

[Operation panel is used
[Parameter setting change]
for operation]

Faults history
[Operation for displaying faults history]
Eight past faults can be displayed with the setting dial.
(The latest fault is ended by ".".)
When no alarm exists, is displayed.

Output frequency Output current

Flickering Flickering

Flickering

Energization time* Output voltage

Flickering Flickering
Faults history number
(The number of past faults is displayed.)
Press the
setting
dial.
Flickering
Press the
setting
dial.

Flickering
Press the
setting
dial.

* The cumulative energization time and actual operation time are accumulated from 0 to 65535 hours, then cleared, and accumulated again from
0.
When the operation panel (FR-DU07) is used, the time is displayed up to 65.53 (65530h) in the indication of 1h = 0.001, and thereafter, it is
added up from 0.

378
 Check and clear of the faults history

(2) Clearing procedure

POINT
· The faults history can be cleared by setting "1" in Er.CL Faults history clear.

Operation Display
1.Screen at power-ON
The monitor display appears.
The parameter
2.Press to choose the parameter
number previously
setting mode. read appears.

3.
appears.

4.Press to read the currently set value.

" "(initial value) appears.

5.Turn to change it to the

setting value " ".

6.Press to set.

Flicker ··· Faults history clear complete!!

· Press to read another parameter.

· Press to show the setting again.

· Press twice to show the next parameter.

4
PARAMETERS

379
MEMO

380
 5 PROTECTIVE FUNCTIONS

This chapter describes the basic "PROTECTIVE FUNCTION" for

use of this product.
Always read the instructions before using the equipment.

5.1 Reset method of protective function........................382

1
5.2 List of fault or alarm display ....................................383
5.3 Causes and corrective actions ................................384
5.4 Correspondences between digital and actual
characters ...............................................................399
5.5 Check first when you have a trouble .......................396 2

7
381
Reset method of protective function

When a fault occurs in the inverter, the inverter trips and the PU display automatically changes to one of the following fault or
alarm indications.
If the fault does not correspond to any of the following faults or if you have any other problem, please contact your sales
representative.
• Retention of fault output signal .. When the magnetic contactor (MC) provided on the input side of the inverter is opened when
a fault occurs, the inverter's control power will be lost and the fault output will not be held.
• Fault or alarm indication...........When a fault or alarm occurs, the operation panel display automatically switches to the fault
or alarm indication.
• Resetting method.....................When a fault occurs, the inverter output is kept stopped. Unless reset, therefore, the inverter
cannot restart. (Refer to page 382)
• When any fault occurs, take the appropriate corrective action, then reset the inverter, and resume operation.
Not doing so may lead to the inverter fault and damage.

Inverter fault or alarm indications are roughly categorized as below.

(1) Error message
A message regarding operational fault and setting fault by the operation panel (FR-DU07) and parameter unit (FR-PU04
/FR-PU07) is displayed. The inverter does not trip.
(2) Warning
The inverter does not trip even when a warning is displayed. However, failure to take appropriate measures will lead to a
fault.
(3) Alarm
The inverter does not trip. You can also output an alarm signal by making parameter setting.
(4) Fault
When a fault occurs, the inverter trips and a fault signal is output.
REMARKS
· Past eight faults can be displayed using the setting dial. (Refer to page 378 for the operation.)

5.1 Reset method of protective function

(1) Resetting the inverter
The inverter can be reset by performing any of the following operations. Note that the internal thermal integrated value
of the electronic thermal relay function and the number of retries are cleared (erased) by resetting the inverter.
Inverter recovers about 1s after the reset is released.

Operation 1: ..... Using the operation panel, press to reset the inverter.
(This may only be performed when a fault occurs (Refer to page 388 for
fault.))

Operation 2:...... Switch power OFF once. After the indicator of the operation panel turns
ON
OFF, switch it ON again.

OFF

Operation 3: ..... Turn ON the reset signal (RES) for more than 0.1s. (If the RES signal is
Inverter
kept ON, "Err." appears (flickers) to indicate that the inverter is in a
reset status.)
RES
SD

CAUTION
· OFF status of the start signal must be confirmed before resetting the inverter fault. Resetting inverter fault with the start signal
ON restarts the motor suddenly.

382
 List of fault or alarm display

5.2 List of fault or alarm display

Operation Panel Refer Operation Panel Refer
Name Name
Indication to Indication to
E--- Faults history 378 E.PTC* PTC thermistor operation 392

HOLD Operation panel lock 384 E.OPT Option fault 393

LOCd Password locked 384
Error message

E.OP3 Communication option fault 393

to
Er1 to 4 Parameter write error 384 to E. 1 to
Option fault 393
E. 3
Parameter storage device
to
rE1 to 4 Copy operation error 385 E.PE 393
fault
E.PUE PU disconnection 394
Err. Error 386
E.RET Retry count excess 394
Stall prevention
OL 386 Parameter storage device
(overcurrent) E.PE2* 394
Stall prevention fault
oL 386
(overvoltage)
E. 5
Electronic thermal relay E. 6
TH 387 CPU fault 394
Warning

function prealarm E. 7
PS PU stop 387 E.CPU

MT Maintenance signal output 387 Operation panel power

CP Parameter copy 387 supply short circuit, RS-485
E.CTE 394
terminal power supply short
Speed limit indication
SL 387 circuit
(Output during speed limit)
24VDC power output short
E.P24 396
Alarm

FN Fan alarm 388 circuit

Output current detection
E.CDO* 396
Overcurrent trip during value exceeded
Fault

E.OC1 388
acceleration Inrush current limit circuit
E.IOH* 396
Overcurrent trip during fault
E.OC2 389
constant speed Communication fault
E.SER* 397
Overcurrent trip during (inverter)
E.OC3 389
deceleration or stop E.AIE* Analog input fault 397
Regenerative overvoltage
E.OV1 389

PROTECTIVE FUNCTIONS
E.OS Overspeed occurrence 395
trip during acceleration
Regenerative overvoltage Speed deviation excess
E.OV2 390 E.OSD 395
trip during constant speed detection
Regenerative overvoltage E.ECT Signal loss detection 395
E.OV3 trip during deceleration or 390
E.OD Excessive position fault 396
stop
Inverter overload trip E.MB1
to
to Brake sequence fault 395
E.THT (electronic thermal relay 390 E.MB7
Fault

function)
E.EP Encoder phase fault 396
Motor overload trip
E.THM (electronic thermal relay 390 E.USB* USB communication fault 397
function) E.4 Converter overcurrent 397
E.FIN Heatsink overheat 391 E.8 Power supply fault 397
E.IPF Instantaneous power failure 391 Converter transistor 5
E.UVT Undervoltage 391 E.10 protection thermal operation 398
(electronic thermal)
E.ILF* Input phase loss 391 Opposite rotation
E.11 398
E.OLT Stall prevention stop 392 deceleration fault
Output side earth (ground) E.13 Internal circuit fault 398
E.GF 392
fault overcurrent E.15 Converter circuit fault 398
E.LF Output phase loss 392
* If an error occurs when using the FR-PU04, "Fault 14" is displayed on
External thermal relay the FR-PU04.
E.OHT 392
operation *2 .....Specifications differ according to the date assembled. Refer to
page 456 to check the SERIAL number.

383
Causes and corrective actions

5.3 Causes and corrective actions

(1) Error message
A message regarding operational troubles is displayed. Output is not shut off.
Operation Panel
HOLD
Indication
Name Operation panel lock

Description Operation lock mode is set. Operation other than is invalid. (Refer to page 373.)

Check point --------------

Corrective action Press for 2s to release lock.

Operation Panel LOCd

Indication
Name Password locked
Description Password function is active. Display and setting of parameter is restricted.
Check point --------------
Enter the password in Pr. 297 Password lock/unlock to unlock the password function before operating.
Corrective action
(Refer to page 287.)
.... Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

Operation Panel
Er1
Indication
Name Write disable error
You attempted to make parameter setting when Pr. 77 Parameter write selection has been set to
disable parameter write.
Description Frequency jump setting range overlapped.
Adjustable 5 points V/F settings overlapped
The PU and inverter cannot make normal communication
Check the setting of Pr. 77 Parameter write selection (Refer to page 284.)
Check the settings of Pr. 31 to 36 (frequency jump). (Refer to page 141.)
Check point
Check the settings of Pr. 100 to Pr. 109 (adjustable 5 points V/F). (Refer to page 147.)
Check the connection of the PU and inverter.

Operation Panel
Er2
Indication
Name Write error during operation
When parameter write was performed during operation with a value other than "2" (writing is enabled
Description
independently of operating status in any operation mode) is set in Pr. 77 and the STF (STR) is on.
Check the Pr. 77 setting. (Refer to page 284.)
Check point
Check that the inverter is not operating.
Set "2" in Pr. 77.
Corrective action
After stopping operation, make parameter setting.

Operation Panel
Er3
Indication
Name Calibration error
Description Analog input bias and gain calibration values are too close.
Check point Check the settings of C3, C4, C6 and C7 (calibration functions). (Refer to page 271.)

384
 Causes and corrective actions

Operation Panel
Er4
Indication
Name Mode designation error
Appears if a parameter setting is attempted in the External or NET operation mode with Pr. 77 ≠ "2".
Description Appears if a parameter setting is attempted when the command source is not at the operation panel.
(FR-DU07).
Check that operation mode is "PU operation mode".
Check point Check the Pr. 77 setting. (Refer to page 284.)
Check the Pr. 551 setting.
After setting the operation mode to "PU operation mode", make parameter setting. (Refer to page 284.)
Corrective action After setting Pr. 77 = "2", make parameter setting.
Set Pr. 551 = "2 (initial setting)". (Refer to page 299.)

Operation Panel
rE1
Indication
Name Parameter read error
Description An error occurred in the EEPROM on the operation panel side during parameter copy reading.
Check point --------------
Make parameter copy again. (Refer to page 376.)
Corrective action
Check for an operation panel (FR-DU07) failure. Please contact your sales representative.

Operation Panel
rE2
Indication
Name Parameter write error
You attempted to perform parameter copy write during operation.
Description
An error occurred in the EEPROM on the operation panel side during parameter copy writing.
Check point Is the FWD or REV LED of the operation panel (FR-DU07) lit or flickering?
After stopping operation, make parameter copy again. (Refer to page 376.)
Corrective action
Check for an operation panel (FR-DU07) failure. Please contact your sales representative.

Operation Panel
rE3
Indication
Name Parameter verification error
Data on the operation panel side and inverter side are different.
Description
An error occurred in the EEPROM on the operation panel side during parameter verification.

PROTECTIVE FUNCTIONS
Check point Check for the parameter setting of the source inverter and inverter to be verified.

Press to continue verification.

Corrective action
Make parameter verification again. (Refer to page 377.)
Check for an operation panel (FR-DU07) failure. Please contact your sales representative.

Operation Panel
rE4
Indication
Name Model error
A different model was used for parameter write and verification during parameter copy.
Description
When parameter copy write is stopped after parameter copy read is stopped
Check that the verified inverter is the same model.
Check point Check that the power is not turned OFF or an operation panel is not disconnected, etc. during
parameter copy read. 5
Use the same model (FR-A701 series) for parameter copy and verification.
Corrective action
Perform parameter copy read again.

385
Causes and corrective actions

Operation Panel
Err.
Indication
The RES signal is ON
The PU and inverter cannot make normal communication (contact fault of the connector)
Description When the voltage drops in the inverter's input side.
When the control circuit power (R1/L11, S1/L21) and the main circuit power (R/L1, S/L2, T/L3) are
connected to a separate power, it may appear at turning ON of the main circuit. It is not a fault.
Turn OFF the RES signal.
Corrective action Check the connection of the PU and inverter.
Check the voltage on the inverter's input side.

(2) Warning
When the protective circuit is activated, the output is not shut off.
Operation Panel FR-PU04
OL OL
Indication FR-PU07
Name Stall prevention (overcurrent)
When the output current (output torque during Real sensorless vector control or vector
control) of the inverter exceeds the stall prevention operation level (Pr. 22 Stall prevention
During operation level, etc.), this function stops the increase in frequency until the overload
acceleration current decreases to prevent the inverter from resulting in overcurrent trip. When the
overload current has decreased below stall prevention operation level, this function
increases the frequency again.
When the output current (output torque during Real sensorless vector control or vector
During control) of the inverter exceeds the stall prevention operation level (Pr. 22 Stall prevention
constant operation level, etc.), this function reduces frequency until the overload current
Description
speed decreases to prevent the inverter from resulting in overcurrent trip. When the overload
operation current has decreased below stall prevention operation level, this function increases the
frequency up to the set value.
When the output current (output torque during Real sensorless vector control or vector
control) of the inverter exceeds the stall prevention operation level (Pr. 22 Stall prevention
During operation level, etc.), this function stops the decrease in frequency until the overload
deceleration current decreases to prevent the inverter from resulting in overcurrent trip. When the
overload current has decreased below stall prevention operation level, this function
decreases the frequency again.
Check that the Pr. 0 Torque boost setting is not too large.
Check that the Pr. 7 Acceleration time and Pr. 8 Deceleration time settings are not too small.
Check that the load is not too heavy.
Check point
Are there any failure in peripheral devices?
Check that the Pr. 13 Starting frequency is not too large.
Check that the Pr. 22 Stall prevention operation level is appropriate.
Increase or decrease the Pr. 0 Torque boost value 1% by 1% and check the motor status. (Refer to page 129.)
Set a larger value in Pr. 7 Acceleration time and Pr. 8 Deceleration time. (Refer to page 155.)
Reduce the load weight.
Try Advanced magnetic flux vector control, Real sensorless vector control or vector control.
Corrective action Change the Pr. 14 Load pattern selection setting.
Set stall prevention operation current in Pr. 22 Stall prevention operation level. (The initial value is
150%.) The acceleration/deceleration time may change. Increase the stall prevention operation level
with Pr. 22 Stall prevention operation level, or disable stall prevention with Pr. 156 Stall prevention
operation selection. (Use Pr. 156 to set either operation continued or not at OL operation.)

Operation Panel FR-PU04

oL oL
Indication FR-PU07
Name Stall prevention (overvoltage)
If the regenerative energy of the motor becomes excessive and exceeds the
regenerative energy consumption capability, this function stops the decrease in
frequency to prevent overvoltage trip. As soon as the regenerative energy has
During
Description decreased, deceleration resumes.
deceleration
If the regenerative energy of the motor becomes excessive when regeneration
avoidance function is selected (Pr. 882 = 1), this function increases the speed to
prevent overvoltage trip. (Refer to page 361.)
Check for sudden speed reduction.
Check point
Regeneration avoidance function (Pr. 882 to Pr. 886) is being used? (Refer to page 361.)
The deceleration time may change.
Corrective action
Increase the deceleration time using Pr. 8 Deceleration time.

386
 Causes and corrective actions

Operation Panel FR-PU04

PS PS
Indication FR-PU07
Name PU stop

Description Stop with of the PU is set in Pr. 75 Reset selection/disconnected PU detection/PU stop selection. (For Pr.
75, refer to page 282.)

Check point Check for a stop made by pressing of the operation panel.

Corrective action Turn the start signal off and release with .

Operation Panel FR-PU04

TH TH
Indication FR-PU07
Name Electronic thermal relay function prealarm
Appears if the cumulative value of the Pr. 9 Electronic thermal O/L relay reaches or exceeds 85% of the
preset level. If it reaches 100% of the Pr. 9 Electronic thermal O/L relay setting, a motor overload trip (E.
THM) occurs.
Description
The THP signal can be simultaneously output with the [TH] display. For the terminal used for the THP
signal output, assign the function by setting "8" (positive logic) or "108" (negative logic) in any of Pr. 190
to Pr. 196 (output terminal function selection). (Refer to page 215)
Check for large load or sudden acceleration.
Check point
Is the Pr. 9 Electronic thermal O/L relay setting is appropriate? (Refer to page 165.)
Reduce the load weight or the number of operation times.
Corrective action
Set an appropriate value in Pr. 9 Electronic thermal O/L relay. (Refer to page 165.)

Operation Panel FR-PU04 ————

MT
Indication FR-PU07 MT
Name Maintenance signal output
Indicates that the cumulative energization time of the inverter has reached a given time.
Description When the setting of Pr. 504 Maintenance timer alarm output set time is the initial value (Pr. 504 = "9999"),
this protective function does not function.
The Pr. 503 Maintenance timer setting is larger than the Pr. 504 Maintenance timer alarm output set time
Check point
setting. (Refer to page 367.)
Corrective action Setting "0" in Pr. 503 Maintenance timer erases the signal.

Operation Panel FR-PU04 ————

CP
Indication

PROTECTIVE FUNCTIONS
FR-PU07 CP
Name Parameter copy
Displayed when parameters are copied between the FR-A701 series and FR-A700 series 75K or
Description
higher.
Check point Check that parameters are not copied between the FR-A701 series and FR-A700 series 75K or higher.
Corrective action Copy between the same FR-A701 series.

Operation Panel FR-PU04 ————

SL
Indication FR-PU07 SL
Name Speed limit indication (output during speed limit)
Description Output if the speed limit level is exceeded during torque control.
Check that the torque command is not larger than required.
Check point
Check that the speed limit level is not low.

Corrective action
Decrease the torque command. 5
Increase the speed limit level.

387
Causes and corrective actions

(3) Alarm
When an alarm occurs, the output is not shut off. You can also output an alarm signal by making parameter
setting. (Set "98" in any of Pr. 190 to Pr. 196 (output terminal function selection). (Refer to page 215.))
Operation Panel FR-PU04
FN FN
Indication FR-PU07
Name Fan alarm

Description For the inverter that contains a cooling fan, appears on the operation panel when the cooling fan
stops due to a fault or different operation from the setting of Pr. 244 Cooling fan operation selection.
Check point Check the cooling fan for a fault.
Corrective action Check for fan fault. Please contact your sales representative.

(4) Fault
When a fault occurs, the inverter trips and a fault signal is output.
Operation Panel FR-PU04
E.OC1 OC During Acc
Indication FR-PU07
Name Overcurrent trip during acceleration
When the inverter output current reaches or exceeds approximately 220% of the rated current during
Description
acceleration, the protective circuit is activated to stop the inverter output.
Check for sudden acceleration.
Check that the downward acceleration time is not long for lift.
Check for output short circuit.
Check that the Pr. 3 Base frequency setting is not 60Hz when the motor rated frequency is 50Hz.
Check if the stall prevention operation level is set too high.
Check if the fast-response current limit operation is disabled.
Check point Check that the regeneration is not performed frequently. (Check that the output voltage becomes
larger than the V/F reference voltage at regeneration and overcurrent due to increase in motor
current occurs.)
Check that the power supply for RS-485 terminal is not shorted. (under vector control)
Check that the rotation direction is not switched from forward to reverse rotation (or from reverse to
forward) during torque control under Real sensorless vector control.
Check if a start command is given to the inverter while the motor is coasting.
Increase the acceleration time.
(Shorten the downward acceleration time for lift.)
When "E.OC1" is always lit at starting, disconnect the motor once and start the inverter.
If "E.OC1" is still lit, contact your sales representative.
Check the wiring to make sure that output short circuit does not occur.
Set the Pr. 3 Base frequency to 50Hz. (Refer to page 142.)
Corrective action Lower the setting of stall prevention operation level. (Refer to page 135.)
Activate the fast-response current limit operation.
Set base voltage (rated voltage of the motor, etc.) in Pr. 19 Base frequency voltage. (Refer to page 142.)
Check RS-485 terminal connection. (under vector control)
Prevent the motor from switching the rotation direction from forward to reverse (or from reverse to
forward) during torque control under Real sensorless vector control.
Input a start command after the motor stops. Alternatively, set the automatic restart after
instantaneous power failure/flying start function. (Refer to page 243.)

388
 Causes and corrective actions

Operation Panel FR-PU04

E.OC2 Stedy Spd OC
Indication FR-PU07
Name Overcurrent trip during constant speed
When the inverter output current reaches or exceeds approximately 220% of the rated current during
Description
constant speed operation, the protective circuit is activated to stop the inverter output.
Check for sudden load change.
Check for output short circuit.
Check if the stall prevention operation level is set too high.
Check if the fast-response current limit operation is disabled.
Check point
Check that the power supply for RS-485 terminal is not shorted. (under vector control)
Check that the rotation direction is not switched from forward to reverse rotation (or from reverse to
forward) during torque control under Real sensorless vector control.
Check if a start command is given to the inverter while the motor is coasting.
Keep load stable.
Check the wiring to make sure that output short circuit does not occur.
Lower the setting of stall prevention operation level. (Refer to page 135.)
Activate the fast-response current limit operation.
Corrective action Check RS-485 terminal connection. (under vector control)
Prevent the motor from switching the rotation direction from forward to reverse (or from reverse to
forward) during torque control under Real sensorless vector control.
Input a start command after the motor stops. Alternatively, set the automatic restart after
instantaneous power failure/flying start function. (Refer to page 243.)

Operation Panel FR-PU04

E.OC3 OC During Dec
Indication FR-PU07
Name Overcurrent trip during deceleration or stop
When the inverter output current reaches or exceeds approximately 220% of the rated inverter current during
Description deceleration (other than acceleration or constant speed), the protective circuit is activated to stop the inverter
output.
Check for sudden speed reduction.
Check for output short circuit.
Check for too fast operation of the motor's mechanical brake.
Check if the stall prevention operation level is set too high.
Check point Check if the fast-response current limit operation is disabled.
Check that the power supply for RS-485 terminal is not shorted. (under vector control)
Check that the rotation direction is not switched from forward to reverse rotation (or from reverse to
forward) during torque control under Real sensorless vector control.
Check if a start command is given to the inverter while the motor is coasting.
Increase the deceleration time.
Check the wiring to make sure that output short circuit does not occur.

PROTECTIVE FUNCTIONS
Check the mechanical brake operation.
Lower the setting of stall prevention operation level. (Refer to page 135.)
Activate the fast-response current limit operation.
Corrective action
Check RS-485 terminal connection. (under vector control)
Prevent the motor from switching the rotation direction from forward to reverse (or from reverse to
forward) during torque control under Real sensorless vector control.
Input a start command after the motor stops. Alternatively, set the automatic restart after
instantaneous power failure/flying start function. (Refer to page 243)

Operation Panel FR-PU04

E.OV1 OV During Acc
Indication FR-PU07
Name Regenerative overvoltage trip during acceleration
If regenerative energy causes the inverter's internal main circuit DC voltage to reach or exceed the
specified value, the protective circuit is activated to stop the inverter output. The circuit may also be
Description activated by a surge voltage produced in the power supply system. Protective circuit may activate even
if the regeneration converter is not activated due to power supply failure (Input phase failure and 5
instantaneous power failure).
Check for power supply fault or wrong wiring.
Check point Check for too slow acceleration. (e.g. during descending acceleration in vertical lift load)
Check that the Pr. 22 Stall prevention operation level is not lower than the no load current.
Perform wiring correctly.
Decrease the acceleration time.
Corrective action
Use regeneration avoidance function (Pr. 882 to Pr. 886). (Refer to page 361.)
Set a value larger than the no load current in Pr. 22 Stall prevention operation level.

389
Causes and corrective actions

Operation Panel FR-PU04

E.OV2 Stedy Spd OV
Indication FR-PU07
Name Regenerative overvoltage trip during constant speed
If regenerative energy causes the inverter's internal main circuit DC voltage to reach or exceed the
specified value, the protective circuit is activated to stop the inverter output. The circuit may also be
Description activated by a surge voltage produced in the power supply system. Protective circuit may activate even
if the regeneration converter is not activated due to power supply failure (Input phase failure and
instantaneous power failure).
Check for power supply fault or wrong wiring.
Check point Check for sudden load change.
Check that the Pr. 22 Stall prevention operation level is not lower than the no load current.
Perform wiring correctly.
Keep load stable.
Corrective action
Use regeneration avoidance function (Pr. 882 to Pr. 886). (Refer to page 361.)
Set a value larger than the no load current in Pr. 22 Stall prevention operation level.

Operation Panel FR-PU04

E.OV3 OV During Dec
Indication FR-PU07
Name Regenerative overvoltage trip during deceleration or stop
If regenerative energy causes the inverter's internal main circuit DC voltage to reach or exceed the
specified value, the protective circuit is activated to stop the inverter output. The circuit may also be
Description activated by a surge voltage produced in the power supply system. Protective circuit may activate even
if the regeneration converter is not activated due to power supply failure (Input phase failure and
instantaneous power failure).
Check for power supply fault or wrong wiring.
Check point
Check for sudden speed reduction.
Perform wiring correctly.
Increase the deceleration time. (Set the deceleration time which matches the moment of inertia of
Corrective action the load)
Decrease the braking duty.
Use regeneration avoidance function (Pr. 882 to Pr. 886). (Refer to page 361.)

Operation Panel FR-PU04

E.THT Inv. Overload
Indication FR-PU07
Name Inverter overload trip (electronic thermal relay function) *1
If a current not less than 150% of the rated output current flows and overcurrent trip does not occur
Description (220% or less), the electronic thermal relay activate to stop the inverter output in order to protect the
output transistors. (Overload capacity 150% 60s inverse-time characteristics)
Check that acceleration/deceleration time is not too short.
Check that torque boost setting is not too large (small).
Check point
Check that load pattern selection setting is appropriate for the load pattern of the using machine.
Check the motor for use under overload.
Increase acceleration/deceleration time.
Adjust the torque boost setting.
Corrective action
Set the load pattern selection setting according to the load pattern of the using machine.
Reduce the load weight.

Operation Panel FR-PU04

E.THM Motor Ovrload
Indication FR-PU07
Name Motor overload trip (electronic thermal relay function) *1
The electronic thermal relay function in the inverter detects motor overheat due to overload or reduced
cooling capability during constant speed operation and pre-alarm (TH display) is output when the I2t
value reaches 85% of the Pr. 9 Electronic thermal O/L relay setting and the protection circuit is activated
Description
to stop the inverter output when the I2t value reaches the specified value. When running a special
motor such as a multi-pole motor or two motors, provide a thermal relay on the inverter output side
since such motor(s) cannot be protected by the electronic thermal relay function.
Check the motor for use under overload.
Check point Check that the setting of Pr. 71 Applied motor for motor selection is correct. (Refer to page 169.)
Check that stall prevention operation setting is correct.
Reduce the load weight.
Corrective action For a constant-torque motor, set the constant-torque motor in Pr. 71 Applied motor.
Check that stall prevention operation setting is correct. (Refer to page 135.)
*1 Resetting the inverter initializes the internal thermal integrated data of the electronic thermal relay function.

390
 Causes and corrective actions

Operation Panel FR-PU04

E.FIN H/Sink O/Temp
Indication FR-PU07
Name Heatsink overheat
If the heatsink overheats, the temperature sensor is actuated to stop the inverter output.
The FIN signal can be output when the temperature becomes approximately 85% of the heatsink
Description overheat protection operation temperature.
For the terminal used for the FIN signal output, assign the function by setting "26" (positive logic) or
"126" (negative logic) in any of Pr. 190 to Pr. 196 (output terminal function selection). (Refer to page 215)
Check for too high surrounding air temperature.
Check point Check for heatsink clogging.
Check that the cooling fan is stopped. (Check that is displayed on the operation panel.)
Set the surrounding air temperature to within the specifications.
Corrective action Clean the heatsink.
Replace the cooling fan.

Operation Panel FR-PU04

E.IPF Inst. Pwr. Loss
Indication FR-PU07
Name Instantaneous power failure
If a power failure occurs for longer than 15ms (this also applies to inverter input shut-off), the
instantaneous power failure protective function is activated to trip the inverter in order to prevent the
control circuit from malfunctioning. If a power failure persists for longer than 100ms, the fault output is
not provided, and the inverter restarts if the start signal is on upon power restoration. (The inverter
Description
continues operating if an instantaneous power failure is within 15ms.) In some operating status (load
magnitude, acceleration/deceleration time setting, etc.), overcurrent or other protection may be
activated upon power restoration.
When instantaneous power failure protection is activated, the IPF signal is output. (Refer to page 243)
Check point Find the cause of instantaneous power failure occurrence.
Remedy the instantaneous power failure.
Corrective action Prepare a backup power supply for instantaneous power failure.
Set the function of automatic restart after instantaneous power failure (Pr. 57). (Refer to page 243.)

Operation Panel FR-PU04

E.UVT Under Voltage
Indication FR-PU07
Name Undervoltage
If the power supply voltage of the inverter decreases, the control circuit will not perform normal functions.
In addition, the motor torque will be insufficient and/or heat generation will increase. To prevent this, if
Description the power supply voltage decreases below about 150VAC (300VAC for the 400V class), this function
stops the inverter output.
When undervoltage protection is activated, the IPF signal is output. (Refer to page 243)

PROTECTIVE FUNCTIONS
Check point Check for start of large-capacity motor.
Check the power supply system equipment such as the power supply.
Corrective action
If the problem still persists after taking the above measure, please contact your sales representative.

Operation Panel FR-PU04 Fault 14

E.ILF
Indication FR-PU07 Input phase loss
Name Input phase loss
This fault is output when function valid setting (= 1) is set in Pr. 872 Input phase loss protection selection
Description and one phase of the three phase power input is lost. (If the input power voltage is less than 100VAC,
the inverter may detect an input phase loss (E.ILF).) (Refer to page 253.)
Check point Check for a break in the cable for the three-phase power supply input.
Wire the cables properly.
Corrective action Repair a break portion in the cable.
Check the Pr. 872 Input phase loss protection selection setting. 5

391
Causes and corrective actions

Operation Panel FR-PU04 Stll Prev STP ( OL shown during stall

E.OLT
Indication FR-PU07 prevention operation)
Name Stall prevention stop
If the frequency has fallen to 0.5Hz by stall prevention operation and remains for 3s, a fault (E.OLT)
appears and trips the inverter. OL appears while stall prevention is being activated.
When speed control is performed by Real sensorless vector control or vector control, a fault (E.OLT) is
Description
displayed and the inverter output is stopped if frequency drops to the Pr. 865 Low speed detection (initial
value is 1.5Hz) setting by torque limit operation and the output torque exceeds Pr. 874 OLT level setting
(initial value is 150%) setting and remains for more than 3s.
Check the motor for use under overload. (Refer to page 135.)
Check point Check that the Pr. 865 Low speed detection and Pr. 874 OLT level setting values are correct. (Check the
Pr. 22 Stall prevention operation level setting if V/F control is exercised.)
Reduce the load weight.
Corrective action Change the Pr. 22 Stall prevention operation level, Pr. 865 Low speed detection and Pr. 874 OLT level
setting values. (Check the Pr. 22 Stall prevention operation level setting if V/F control is exercised.)

Operation Panel FR-PU04

E.GF Ground Fault
Indication FR-PU07
Name Output side earth (ground) fault overcurrent
This function stops the inverter output if an earth (ground) fault overcurrent flows due to an earth
Description
(ground) fault that occurred on the inverter's output (load) side.
Check point Check for an earth (ground) fault in the motor and connection cable.
Corrective action Remedy the earth (ground) fault portion.

Operation Panel FR-PU04

E.LF E. LF
Indication FR-PU07
Name Output phase loss
This function stops the inverter output if one of the three phases (U, V, W) on the inverter's output side
Description
(load side) is lost.
Check the wiring (Check that the motor is normal.)
Check point Check that the capacity of the motor used is not smaller than that of the inverter.
Check if a start command is given to the inverter while the motor is coasting.
Wire the cables properly.
Corrective action Input a start command after the motor stops. Alternatively, set the automatic restart after
instantaneous power failure/flying start function. (Refer to page 243.)

Operation Panel FR-PU04

E.OHT OH Fault
Indication FR-PU07
Name External thermal relay operation
If the external thermal relay provided for motor overheat protection, or the internally mounted
temperature relay in the motor, etc. switches on (contacts open), the inverter output is stopped.
Description This function is available when "7" (OH signal) is set in any of Pr. 178 to Pr. 189 (input terminal function
selection).
When the initial value (without OH signal assigned) is set, this protective function is not available.
Check for motor overheating.
Check point
Check that the value of 7 (OH signal) is set correctly in any of Pr. 178 to Pr. 189 (input terminal function selection).
Reduce the load and operating duty.
Corrective action
Even if the relay contacts are reset automatically, the inverter will not restart unless it is reset.

Operation Panel FR-PU04 Fault 14

E.PTC
Indication FR-PU07 PTC activated
Name PTC thermistor operation
Stops the inverter output when the motor overheat status is detected for 10s or more by the external
PTC thermistor input connected to the terminal AU.
Description This fault is available when "63" is set in Pr. 184 AU terminal function selection and AU/PTC switchover
switch is set in PTC side. When the initial value (Pr. 184 = "4") is set, this protective function is not
available.
Check the connection between the PTC thermistor switch and thermal protector.
Check point Check the motor for operation under overload.
Is valid setting ( = 63) selected in Pr. 184 AU terminal function selection ? (Refer to page 168, 207.)
Corrective action Reduce the load weight.

392
 Causes and corrective actions

Operation Panel E.OPT FR-PU04

Option Fault
Indication FR-PU07
Name Option fault
Appears when torque command by the plug-in option is selected using Pr.804 Torque command source
selection selection and no plug-in option is mounted.
Description Appears when the switch for the manufacturer setting of the plug-in option is changed.
Appears when a communication option is connected while Pr. 296 = "0 or 100."
Check that the plug-in option for torque command setting is connected.
Check point
Check for the password lock with a setting of Pr. 296 = "0, 100"
Check for connection of the plug-in option. Check the Pr. 804 Torque command source selection setting.
Return the switch for the manufacturer setting of the plug-in option to the initial status. (Refer to
instruction manual of each option)
Corrective action
To apply the password lock when installing a communication option, set Pr.296 ≠ "0,100". (Refer to
page 287.)
If the problem still persists after taking the above measure, please contact your sales representative.
.....Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

Operation Panel FR-PU04

E.OP3 Option 3 Fault
Indication FR-PU07
Name Communication option fault
Description Stops the inverter output when a communication line error occurs in the communication option.
Check for a wrong option function setting and operation.
Check that the plug-in option is plugged into the connector securely.
Check point Check for a break in the communication cable.
Check that the terminating resistor is fitted properly.
Check the option function setting, etc.
Corrective action Connect the plug-in option securely.
Check the connection of communication cable.

Operation Panel E. 1 to to FR-PU04

Fault 1 to Fault 3
Indication E. 3 FR-PU07

Name Option fault

Stops the inverter output if a contact fault, etc. of the connector between the inverter and plug-in option
Description occurs or if a communication option is fitted to the connector 1 or 2.
Appears when the switch for the manufacturer setting of the plug-in option is changed.
Check that the plug-in option is plugged into the connector securely.
(1 to 3 indicate the option connector numbers.)

PROTECTIVE FUNCTIONS
Check point
Check for excess electrical noises around the inverter.
Check that the communication option is not fitted to the connector 1 or 2.
Connect the plug-in option securely.
Take measures against noises if there are devices producing excess electrical noises around the inverter.
If the problem still persists after taking the above measure, please contact your sales representative or
Corrective action distributor.
Fit the communication option to the connector 3.
Return the switch for the manufacturer setting of the plug-in option to the initial status. (Refer to
Instruction Manual of each option)

Operation Panel FR-PU04

E.PE Corrupt Memry
Indication FR-PU07
Name Parameter storage device fault (control circuit board)
Description Stops the inverter output if fault occurred in the parameter stored. (EEPROM failure)
Check point Check for too many number of parameter write times.
5
Please contact your sales representative.
Corrective action When performing parameter write frequently for communication purposes, set "1" in Pr. 342 to enable
RAM write. Note that powering off returns the inverter to the status before RAM write.

393
Causes and corrective actions

Operation Panel FR-PU04 Fault 14

E.PE2
Indication FR-PU07 PR storage alarm
Name Parameter storage device fault (main circuit board)
Description Stops the inverter output if fault occurred in the parameter stored. (EEPROM failure)
Check point ——————
Corrective action Please contact your sales representative.

Operation Panel FR-PU04

E.PUE PU Leave Out
Indication FR-PU07
Name PU disconnection
This function stops the inverter output if communication between the inverter and PU is suspended,
e.g. the operation panel and parameter unit is disconnected, when "2", "3", "16" or "17" was set in Pr.
75 Reset selection/disconnected PU detection/PU stop selection.
This function stops the inverter output when communication errors occurred consecutively for more
Description
than permissible number of retries when a value other than "9999" is set in Pr. 121 Number of PU
communication retries during the RS-485 communication with the PU connector.
This function stops the inverter output if communication is broken within the period of time set in Pr.
122 PU communication check time interval during the RS-485 communication with the PU connector.
Check that the FR-DU07 or parameter unit (FR-PU04/FR-PU07) is fitted tightly.
Check point
Check the Pr. 75 setting.
Corrective action Fit the FR-DU07 or parameter unit (FR-PU04/FR-PU07) securely.

Operation Panel FR-PU04

E.RET Retry No Over
Indication FR-PU07
Name Retry count excess
If operation cannot be resumed properly within the number of retries set, this function trips the inverter.
Description This function is available only when Pr. 67 Number of retries at fault occurrence is set. When the initial
value (Pr. 67 = "0") is set, this fault does not occur.
Check point Find the cause of alarm occurrence.
Corrective action Eliminate the cause of the error preceding this error indication.

E. 5 Fault 5

E. 6 Fault 6
Operation Panel FR-PU04
Indication FR-PU07
E. 7 Fault 7

E.CPU CPU Fault

Name CPU fault
Description Stops the inverter output if the communication error of the built-in CPU occurs.
Check point Check for devices producing excess electrical noises around the inverter.
Take measures against noises if there are devices producing excess electrical noises around the
Corrective action inverter.
Please contact your sales representative.

Operation Panel FR-PU04 ⎯⎯

E.CTE
Indication FR-PU07 E.CTE
Name Operation panel power supply short circuit, RS-485 terminal power supply short circuit
When the operation panel power supply (PU connector) is shorted, this function shuts off power output
and stops the inverter output. At this time, the operation panel (parameter unit) cannot be used and
RS-485 communication from the PU connector cannot be made. When the internal power supply for
Description
the RS-485 terminals are shorted, this function shuts off the power output.
At this time, communication from the RS-485 terminals cannot be made.
To reset, enter the RES signal or switch power off, then on again.
Check for a short circuit in the PU connector cable.
Check point
Check that the RS-485 terminals are connected correctly.
Check the PU and cable.
Corrective action
Check the connection of the RS-485 terminals

394
 Causes and corrective actions

FR-PU04 ⎯⎯
Operation Panel
E.MB1 to 7 to
Indication FR-PU07 E.MB1 Fault to E.MB7 Fault
Name Brake sequence fault
The inverter output is stopped when a sequence error occurs during use of the brake sequence
Description function (Pr. 278 to Pr. 285). This fault is not available in the initial status (brake sequence function is
invalid). (Refer to page 193.)
Check point Find the cause of alarm occurrence.
Corrective action Check the set parameters and perform wiring properly.

Operation Panel FR-PU04

E.OS E. OS
Indication FR-PU07
Name Overspeed occurrence
Stops the inverter output when the motor speed exceeds the Pr. 374 Overspeed detection level during
Description encoder feedback control Real sensorless vector control and vector control. This fault is not available
in the initial status.
Check that the Pr. 374 Overspeed detection level value is correct.
Check point
Check that the number of encoder pulses does not differ from the actual number of encoder pulses.
Set the Pr. 374 Overspeed detection level value correctly.
Corrective action
Set the correct number of encoder pulses in Pr. 369 Number of encoder pulses.

Operation Panel FR-PU04

E.OSD E. OSd
Indication FR-PU07
Name Speed deviation excess detection
Stops the inverter output if the motor speed is increased or decreased under the influence of the load
etc. during vector control with Pr. 285 Speed deviation excess detection frequency set and cannot be
Description
controlled in accordance with the speed command value.
This fault is not available in the initial status.
Check that the values of Pr. 285 Speed deviation excess detection frequency and Pr. 853 Speed deviation
time are correct.
Check point
Check for sudden load change.
Check that the number of encoder pulses does not differ from the actual number of encoder pulses.
Set Pr. 285 Speed deviation excess detection frequency and Pr. 853 Speed deviation time correctly.
Corrective action Keep load stable.
Set the correct number of encoder pulses in Pr. 369 Number of encoder pulses.

PROTECTIVE FUNCTIONS
Operation Panel FR-PU04
E.ECT E. ECT
Indication FR-PU07
Name Signal loss detection
Trips the inverter when the encoder signal is shut off under orientation control, encoder feedback
Description
control or vector control. This fault is not available in the initial status.
Check for the encoder signal loss.
Check that the encoder specifications are correct.
Check for a loose connector.
Check point
Check that the switch setting of the FR-A7AP/FR-A7AL (option) is correct.
Check that the power is supplied to the encoder. Or, check that the power is not supplied to the
encoder later than the inverter.
Remedy the signal loss.
Use an encoder that meets the specifications.
Make connection securely.
Make a switch setting of the FR-A7AP/FR-A7AL (option) correctly. (Refer to page 31)
Corrective action
Supply the power to the encoder. Or supply the power to the encoder at the same time when the
5
power is supplied to the inverter.
If the power is supplied to the encoder after the inverter, check that the encoder signal is securely
sent and set "0" in Pr. 376.

395
Causes and corrective actions

Operation Panel FR-PU04 Fault 14

E.OD
Indication FR-PU07 E. Od
Name Excessive position fault
Stops the inverter output when the difference between the position command and position feedback
Description
exceeds Pr. 427 Excessive level error under position control. This fault is not available in the initial status.
Check that the position detecting encoder mounting orientation matches the parameter.
Check point Check that the load is not large.
Check that the Pr. 427 Excessive level error and Pr. 369 Number of encoder pulses are correct.
Check the parameters.
Corrective action Reduce the load weight.
Set the Pr. 427 Excessive level error and Pr. 369 Number of encoder pulses correctly.

Operation Panel FR-PU04 Fault 14

E.EP
Indication FR-PU07 E.EP
Name Encoder phase fault
Stops the inverter output when the rotation command of the inverter differs from the actual motor
Description
rotation direction detected from the encoder. This fault is not available in the initial status.
Check for mis-wiring of the encoder cable.
Check point
Check for wrong setting of Pr. 359 Encoder rotation direction.
Perform connection and wiring securely.
Corrective action
Change the Pr. 359 Encoder rotation direction value.

Operation Panel FR-PU04

E.P24 E.P24
Indication FR-PU07
Name 24VDC power output short circuit
When the 24VDC power output from the PC terminal is shorted, this function shuts off the power
output.
Description
At this time, all external contact inputs switch off. The inverter cannot be reset by entering the RES
signal. To reset it, use the operation panel or switch power off, then on again.
Check point Check for a short circuit in the PC terminal output.
Corrective action Remedy the earth (ground) fault portion.

Operation Panel FR-PU04 Fault 14

E.CDO
Indication FR-PU07 OC detect level
Name Output current detection value exceeded
Trips the inverter when the output current exceeds the setting of Pr. 150 Output current detection level.
Description This function is available when Pr. 167 Output current detection operation selection is set to "1". When the
initial value (Pr. 167 = "0") is set, this protective function is not available.
Check the settings of Pr. 150 Output current detection level, Pr. 151 Output current detection signal delay time,
Check point Pr. 166 Output current detection signal retention time, Pr. 167 Output current detection operation selection.
(Refer to page 224.)

Operation Panel FR-PU04 Fault 14

E.IOH
Indication FR-PU07 Inrush overheat
Name Inrush current limit circuit fault
Stops the inverter output when the resistor of inrush current limit circuit overheated. The inrush current
Description
limit circuit failure
Check that frequent power ON/OFF is not repeated.
Check point
Check that the power supply circuit of inrush current limit circuit contactor is not damaged.
Configure a circuit where frequent power ON/OFF is not repeated.
Corrective action
If the problem still persists after taking the above measure, please contact your sales representative.

396
 Causes and corrective actions

Operation Panel FR-PU04 Fault 14

E.SER
Indication FR-PU07 VFD Comm error
Name Communication fault (inverter)
This function stops the inverter output when communication error occurs consecutively for more than
permissible retry count when a value other than "9999" is set in Pr. 335 RS-485 communication retry count
Description
during RS-485 communication from the RS-485 terminals. This function also stops the inverter output if
communication is broken for the period of time set in Pr. 336 RS-485 communication check time interval.
Check point Check the RS-485 terminal wiring.
Corrective action Perform wiring of the RS-485 terminals properly.

Operation Panel FR-PU04 Fault 14

E.AIE
Indication FR-PU07 Analog in error
Name Analog input fault
Stops the inverter output when a 30mA or higher current or a 7.5V or higher voltage is input to terminal
Description 2 while the current input is selected by Pr.73 Analog input selection, or to terminal 4 while the current
input is selected by Pr.267 Terminal 4 input selection.
Check the setting of Pr. 73 Analog input selection, Pr. 267 Terminal 4 input selection and voltage/current
Check point
input switch. (Refer to page 263.)
Either give a frequency command by current input or set Pr. 73 Analog input selection, Pr. 267 Terminal 4
Corrective action
input selection, and voltage/current input switch to voltage input.

Operation Panel FR-PU04 Fault 14

E.USB
Indication FR-PU07 USB comm error
Name USB communication fault
When the time set in Pr. 548 USB communication check time interval has broken, this function stops the
Description
inverter output.
Check point Check the USB communication cable.
Check the Pr. 548 USB communication check time interval setting.
Check the USB communication cable.
Corrective action
Increase the Pr. 548 USB communication check time interval setting. Or, change the setting to 9999.
(Refer to page 337)

Operation Panel FR-PU04

E.4 Fault 4
Indication FR-PU07
Name Converter overcurrent
The current flows in the regeneration converter module exceeds the specified value, protective circuit

PROTECTIVE FUNCTIONS
Description
activates and stops the inverter output.
Check that sudden acceleration/deceleration is not performed.
Check for sudden load change.
Check point Check that wiring is correct.
Check that instantaneous power failure did not occur.
Check that the thyristor load does not exist in the same power supply system.
Increase acceleration/deceleration time.
Keep load stable.
Corrective action
Wire the cables properly.
When a thyristor load exist in the same power supply system, install an AC reactor (FR-HAL).

Operation Panel FR-PU04

E.8 Fault 8
Indication FR-PU07
Name Power supply fault
When overvoltage occurs in the converter side during input phase failure detection 5
When overvoltage occurs in the converter side during instantaneous power failure detection
When fault of power supply frequency is detected
Description
When phase shift is not detected
When any of the above conditions applied, it is judged as power supply and the inverter output is
stopped.
Check point Check the power supply and wiring.
Corrective action Perform wiring correctly.

397
Causes and corrective actions

Operation Panel FR-PU04

E.10 Fault 10
Indication FR-PU07
Name Converter transistor protection thermal operation (electronic thermal)
Current flowing in the module of the regeneration converter is less than the overcurrent shutoff level
Description and exceeds the specified value, electronic thermal relay activates for protection and the inverter
output is stopped.
Check the motor for use under overload. (excess regeneration amount)
Check point
Check that the thyristor load does not exist in the same power supply system.
Reduce the load weight.
Corrective action
When a thyristor load exists in the same power supply system, install an AC reactor (FR-HAL).

Operation Panel FR-PU04

E.11 Fault 11
Indication FR-PU07
Name Opposite rotation deceleration fault
The speed may not decelerate during low speed operation if the rotation direction of the speed
command and the estimated speed differ when the rotation is changing from forward to reverse or from
reverse to forward during torque control under Real sensorless vector control. At this time, the inverter
Description
output is stopped if the rotation direction will not change, causing overload.
This fault is not available in the initial status (V/F control). (It is available only during Real sensorless
vector control.)
Check that the rotation direction is not switched from forward to reverse rotation (or from reverse to
Check point
forward) during torque control under Real sensorless vector control.
Prevent the motor from switching the rotation direction from forward to reverse (or from reverse to
Corrective action forward) during torque control under Real sensorless vector control.
Please contact your sales representative.

Operation Panel FR-PU04

E.13 Fault 13
Indication FR-PU07
Name Internal circuit fault
Description Stop the inverter output when an internal circuit fault occurred.
Corrective action Please contact your sales representative.

Operation Panel FR-PU04

E.15 Fault 15
Indication FR-PU07
Name Converter circuit fault
When a fault occurs in the peripheral circuit of the regeneration converter CPU
When a fault occurs in the control power supply circuit.
Description When a fault occurs in the inrush current limit circuit.
If any of the above conditions applied, it is judged as converter circuit fault and the inverter output is
stopped.
Check point Check for devices producing excess electrical noises around the inverter.
Take measures against noises if there are devices producing excess electrical noises around the
Corrective action inverter.
Please contact your sales representative.

CAUTION
• If protective functions of E.ILF, E.PTC, E.PE2, E.EP, E.OD, E.CDO, E.IOH, E.SER, E.AIE, E.USB are activated when using the
FR-PU04, "Fault 14" appears.
Also when the faults history is checked on the FR-PU04, the display is "E.14".
• If faults other than the above appear, contact your sales representative.

398
 Correspondences between digital and
actual characters

5.4 Correspondences between digital and actual characters

There are the following correspondences between the actual alphanumeric characters and the digital characters
displayed on the operation panel.

Actual Digital Actual Digital Actual Digital

0 A M

1 B N

2 C O

3 D o

4 E P

5 F S

6 G T

7 H U

8 I V

9 J r

L
-

PROTECTIVE FUNCTIONS

399
Check first when you have a trouble

5.5 Check first when you have a trouble

When performing real sensorless vector control or vector control, refer to trouble shooting on page 93 (speed control),
page 114 (torque control) and page 126 (position control) in addition to the following check points.
POINT
· If the cause is still unknown after every check, it is recommended to initialize the parameters (initial value) then reset the
required parameter values and check again.

5.5.1 Motor does not start

Refer
Check
Possible Cause Countermeasures to
points
page
Power ON a moulded case circuit breaker (MCCB), an
earth leakage circuit breaker (ELB), or a magnetic
contactor (MC). —
Appropriate power supply voltage is not applied. Check for the decreased input voltage, input phase
(Operation panel display is not provided.) loss, and wiring.
If only the control power is ON when using a separate
Main
power source for the control circuit, turn ON the main 21
Circuit
circuit power.
Check the wiring between the inverter and the motor.
If commercial power supply-inverter switchover
Motor is not connected properly. function is active, check the wiring of the magnetic 16
contactor connected between the inverter and the
motor.
Check the start command source, and input a start
signal.
Start signal is not input. 292
PU operation mode: /

External operation mode : STF/STR signal

Turn ON only one of the forward and reverse rotation
Both the forward and reverse rotation start signals start signals (STF or STR).
22
(STF, STR) are input simultaneously. If STF and STR signals are turned ON simultaneously
in the initial setting, a stop command is given.
Frequency command is zero.
Check the frequency command source and enter a
(FWD or REV LED on the operation panel is 292
frequency command.
flickering.)
AU signal is not ON when terminal 4 is used for
frequency setting. Turn ON the AU signal.
263
(FWD or REV LED on the operation panel is Turning ON the AU signal activates terminal 4 input.
flickering.)
Turn MRS or RES signal OFF.
Input Output stop signal (MRS) or reset signal (RES) is Inverter starts the operation with a given start
signal ON.
command and a frequency command after turning OFF 22
(FWD or REV LED on the operation panel is
flickering.) MRS or RES signal.
Before turning OFF, ensure the safety.
CS signal is OFF when automatic restart after
instantaneous power failure function is selected (Pr. Turn ON the CS signal.
57 ≠ "9999"). Restart operation is enabled when restart after 243
(FWD or REV LED on the operation panel is instantaneous power signal (CS) is ON.
flickering. )
Jumper connector of sink - source is wrongly Check that the control logic switchover jumper
selected.
connector is correctly installed. 25
(FWD or REV LED on the operation panel is
flickering.) If it is not installed correctly, input signal is not recognized.
Wiring of encoder is incorrect.
Check the wiring of encoder. 33
(Under encoder feedback control or vector control)
Voltage/current input switch is not correctly set for Set Pr. 73, Pr. 267, and a voltage/current input switch
analog input signal (0 to 5V/0 to 10V, 4 to 20mA).
correctly, then input an analog signal in accordance 22
(FWD or REV LED on the operation panel is
flickering.) with the setting.

400
 Check first when you have a trouble

Refer
Check
Possible Cause Countermeasures to
points
page
During the External operation mode, check the method
was pressed.
387
of restarting from a input stop from PU.
(Operation panel indication is (PS).)
Check the connection.
Two-wire or three-wire type connection is wrong. 212
Connect STOP signal when three-wire type is used.
Increase Pr. 0 setting by 0.5% increments while
Pr. 0 Torque boost setting is improper when V/F control
observing the rotation of a motor. 129
is used.
If that makes no difference, decrease the setting.
Check the Pr. 78 setting.
Pr. 78 Reverse rotation prevention selection is set. Set Pr. 78 when you want to limit the motor rotation to 285
only one direction.
Select the operation mode which corresponds with
Pr. 79 Operation mode selection setting is wrong. input methods of start command and frequency 290
command.
Bias and gain (calibration parameter C2 to C7) settings Check the bias and gain (calibration parameter C2 to C7)
271
are improper. settings.
Set running frequency higher than Pr. 13.
Pr. 13 Starting frequency setting is greater than the
The inverter does not start if the frequency setting 157
running frequency.
signal is less than the value set in Pr. 13.
Frequency settings of various running frequency Set the frequency command according to the
(such as multi-speed operation) are zero. application. 140
Especially, Pr. 1 Maximum frequency is zero. Set Pr. 1 higher than the actual frequency used.
Pr. 15 Jog frequency setting is lower than Pr. 13 Starting Set Pr. 15 Jog frequency higher than Pr. 13 Starting
150
frequency. frequency.
The Pr.359 Encoder rotation direction setting is
If the "REV" on the operation panel is lit even though
Parameter incorrect under encoder feedback control or under 35
the forward-rotation command is given, set Pr. 359 ="1."
Setting vector control.
Check Pr. 79, Pr. 338, Pr. 339, Pr. 550, Pr. 551, and select 290,
Operation mode and a writing device do not match.
an operation mode suitable for the purpose. 299
Start signal operation selection is set by the Pr. 250 Check Pr. 250 setting and connection of STF and STR
212
Stop selection signals.
When power is restored, ensure the safety, and turn
Inverter decelerated to a stop when power failure OFF the start signal once, then turn ON again to
247
deceleration stop function is selected. restart.
Inverter restarts when Pr. 261="2, 12".

PROTECTIVE FUNCTIONS
In the PU operation, press on the operation
panel after the offline auto tuning completes.
In the External operation, turn OFF the start signal
Auto tuning is being performed. (STF, STR). 171
By this operation, offline auto tuning is cancelled, and
the monitor display on the PU goes back to normal.
(If this operation is not performed, you cannot proceed
to the next operation.)
Set Pr. 872 Input phase loss protection selection = "1"
(input phase failure protection active).
Automatic restart after instantaneous power failure Disable the automatic restart after instantaneous
function or power failure stop function is activated. power failure function and power failure stop 243,
(Performing overload operation during input phase function. 247,
loss may cause voltage insufficiency, and that may Reduce the load. 253
result in detection of power failure.) Increase the acceleration time if the automatic restart 5
after instantaneous power failure function or power
failure stop function occurred during acceleration.
Load is too heavy. Reduce the load. —
Load
Shaft is locked. Inspect the machine (motor). —

401
Check first when you have a trouble

5.5.2 Motor or machine is making abnormal acoustic noise

Refer
Check
Possible Cause Countermeasures to
points
page
Input
Take countermeasures against EMI. 38
signal Disturbance due to EMI when frequency command
Parameter is given from analog input (terminal 1, 2, 4). Increase the Pr. 74 Input filter time constant if steady
269
Setting operation cannot be performed due to EMI.
In the initial setting, Pr. 240 Soft-PWM operation
selection is enabled to change motor noise to an
No carrier frequency noises (metallic noises) are
unoffending complex tone. Therefore, no carrier 261
generated.
frequency noises (metallic noises) are generated.
Set Pr. 240 = "0" to disable this function.
Set Pr. 31 to Pr. 36 (Frequency jump).
When it is desired to avoid resonance attributable to
Resonance occurs. (output frequency) 141
the natural frequency of a mechanical system, these
parameters allow resonant frequencies to be jumped.
Change Pr. 72 PWM frequency selection setting.
Changing the PWM carrier frequency produces an
261
Resonance occurs. (carrier frequency) effect on avoiding the resonance frequency of a
mechanical system or a motor.
Parameter
Set a notch filter. 101
Setting
Auto tuning is not performed under Advanced
magnetic flux vector control, Real sensorless vector Perform offline auto tuning. 171
control, or vector control.
To stabilize the measured value, change the
proportional band (Pr. 129) to a larger value, the
integral time (Pr. 130) to a slightly longer time, and the
Gain adjustment during PID control is insufficient. 338
differential time (Pr. 134) to a slightly shorter time.
Check the calibration of set point and measured
value.
During speed control, check the setting of Pr. 820 (Pr.
88
The gain is too high under Real sensorless vector 830) speed control P gain.
control or vector control. During torque control, check the setting of Pr. 824 (Pr.
113
834) torque control P gain.
Adjust machine/equipment so that there is no
Mechanical looseness —
Others mechanical looseness.
Contact the motor manufacturer.
Motor Operating with output phase loss Check the motor wiring. —

5.5.3 Inverter generates abnormal noise

Larger acoustic noise is generated during regenerative driving than during power driving because the inverter contains
an AC reactor. This is not a fault.
Connecting a single-phase power supply device or having an unbalanced power supply may cause the reactor to
generate acoustic noise even in non-operating status. This is not a fault.
Refer
Check
Possible Cause Countermeasures to
points
page
Fan cover was not correctly installed when a cooling
Fan Install a fan cover correctly. 414
fan was replaced.

402
 Check first when you have a trouble

5.5.4 Motor generates heat abnormally

Refer
Check
Possible Cause Countermeasures to
points
page
Motor fan is not working Clean the motor fan.
—
Motor (Dust is accumulated.) Improve the environment.
Phase to phase insulation of the motor is insufficient. Check the insulation of the motor. —
Main The inverter output voltage (U, V, W) are Check the output voltage of the inverter.
411
Circuit unbalanced. Check the insulation of the motor.
Parameter
The Pr. 71 Applied motor setting is wrong. Check the Pr. 71 Applied motor setting. 169
Setting
— Motor current is large. Refer to "5.5.8 Motor current is too large" 404

5.5.5 Motor rotates in the opposite direction

Refer
Check
Possible Cause Countermeasures to
points
page
Main Phase sequence of output terminals U, V and W is Connect phase sequence of the output cables
15
Circuit incorrect. (terminal U, V, W) to the motor correctly.
The start signals (forward rotation, reverse rotation) Check the wiring. (STF: forward rotation , STR:
22
are connected improperly. reverse rotation)
Input
The polarity of the frequency command is negative
signal
during the polarity reversible operation set by Pr. 73 Check the polarity of the frequency command. 263
Analog input selection.
Input
signal Torque command is negative during torque control
Check the torque command value. 108
Parameter under vector control.
setting

5.5.6 Speed greatly differs from the setting

Refer
Check
Possible Cause Countermeasures to
points
page
Frequency setting signal is incorrectly input. Measure the input signal level. —
Input
Take countermeasures against EMI such as using
signal The input signal lines are affected by external EMI. 40

PROTECTIVE FUNCTIONS
shielded wires for input signal lines.
Check the settings of Pr. 1 Maximum frequency, Pr. 2
Pr. 1, Pr. 2, Pr. 18,calibration parameter C2 to C7 Minimum frequency, Pr. 18 High speed maximum 140
Parameter settings are improper. frequency.
Setting
Check the calibration parameter C2 to C7 settings. 271
Pr. 31 to Pr. 36 (frequency jump) settings are improper. Narrow down the range of frequency jump. 141
Load Reduce the load weight. —
Set Pr. 22 Stall prevention operation level (Torque limit
Parameter Stall prevention (torque limit) function is activated level) higher according to the load. (Setting Pr. 22 too 135
Setting due to a heavy load. large may result in frequent overcurrent trip (83)
(E.OC ).)
Motor Check the capacities of the inverter and the motor. —

403
Check first when you have a trouble

5.5.7 Acceleration/deceleration is not smooth

Refer
Check
Possible Cause Countermeasures to
points
page
Acceleration/deceleration time is too short. Increase acceleration/deceleration time. 155
Torque boost (Pr. 0, Pr. 46, Pr. 112) setting is improper
Increase/decrease Pr. 0 Torque boost setting value by
under V/F control, so the stall prevention function is 129
0.5% increments to the setting.
activated.
For V/F control, set Pr. 3 Base frequency, Pr. 47 Second
Parameter
The base frequency setting and the motor V/F (base frequency), and Pr.113 Third V/F (base 142
Setting
characteristic does not match. frequency).
For vector control, set Pr.84 Rated motor frequency. 171
If the frequency becomes unstable during
Regeneration avoidance operation is performed regeneration avoidance operation, decrease the 361
setting of Pr. 886 Regeneration avoidance voltage gain.
Load Reduce the load weight. —
Set Pr. 22 Stall prevention operation level (Torque limit
Parameter Stall prevention (torque limit) function is activated level) higher according to the load. (Setting Pr. 22 too 135
Setting due to a heavy load. large may result in frequent overcurrent trip (83)
(E.OC ).)
Motor Check the capacities of the inverter and the motor. —

5.5.8 Motor current is too large

Refer
Check
Possible Cause Countermeasures to
points
page
Torque boost (Pr. 0, Pr. 46, Pr. 112) setting is improper
Increase/decrease Pr. 0 Torque boost setting value by
under V/F control, so the stall prevention function is 129
0.5% increments to the setting.
activated.
Set rated frequency of the motor to Pr. 3 Base
frequency. Use Pr. 19 Base frequency voltage to set the 142
V/F pattern is improper when V/F control is
base voltage (e.g. rated motor voltage).
performed. (Pr. 3, Pr. 14, Pr. 19)
Change Pr. 14 Load pattern selection according to the
144
load characteristic.
Parameter
Reduce the load weight. —
Setting
Set Pr. 22 Stall prevention operation level (Torque limit
Stall prevention (torque limit) function is activated level) higher according to the load. (Setting Pr. 22 too 135
due to a heavy load. large may result in frequent overcurrent trip (83)
(E.OC ).)
Check the capacities of the inverter and the motor. —
Auto tuning is not performed under Advanced
magnetic flux vector control, Real sensorless vector Perform offline auto tuning. 171
control, or vector control.

404
 Check first when you have a trouble

5.5.9 Speed does not accelerate

Refer
Check
Possible Cause Countermeasures to
points
page
Start command and frequency command are Check if the start command and the frequency
—
chattering. command are correct.
The wiring length used for analog frequency
Input
command is too long, and it is causing a voltage Perform analog input bias/gain calibration. 271
signal
(current) drop.
Take countermeasures against EMI, such as using
Input signal lines are affected by external EMI. 40
shielded wires for input signal lines.
Check the settings of Pr. 1 Maximum frequency and Pr.
2 Minimum frequency. If you want to run the motor at
Pr. 1, Pr. 2, Pr. 18, calibration parameter C2 to C7 140
120Hz or higher, set Pr. 18 High speed maximum
settings are improper.
frequency.
Check the calibration parameter C2 to C7 settings. 271
Torque boost (Pr. 0, Pr. 46, Pr. 112) setting is improper Increase/decrease Pr. 0 Torque boost setting value by
under V/F control, so the stall prevention function is 0.5% increments so that stall prevention does not 129
activated. occur.
Set rated frequency of the motor to Pr. 3 Base
frequency.
V/F pattern is improper when V/F control is 142
Parameter Use Pr. 19 Base frequency voltage to set the base
performed.
Setting voltage (e.g. rated motor voltage).
(Pr. 3, Pr. 14, Pr. 19)
Change Pr. 14 Load pattern selection according to the
144
load characteristic.
Auto tuning is not performed under Advanced
magnetic flux vector control, Real sensorless vector Perform offline auto tuning. 171
control, or vector control.
Check the specification of the pulse generator (open
collector output or complementary output) and check
The setting of pulse train input is improper. 356
the adjustment of the pulse train and frequency (Pr.
385 and Pr. 386).
During PID control, output frequency is automatically controlled to make measured value = set point. 338
Load Reduce the load weight. —
Set Pr. 22 Stall prevention operation level (Torque limit
Parameter Stall prevention (torque limit) function is activated level) higher according to the load. (Setting Pr. 22 too 135
Setting due to a heavy load. large may result in frequent overcurrent trip (83)
(E.OC ).)

PROTECTIVE FUNCTIONS
Motor Check the capacities of the inverter and the motor. —

5.5.10 Motor and machine vibrate

Refer
Check
Possible Cause Countermeasures to
points
page
Pr.19 Base frequency voltage is improper under V/F Set the rated motor voltage to Pr.19 Base frequency
142
Parameter control. voltage.
Setting Adjust machine/equipment so that there is no
Mechanical looseness —
mechanical looseness.

405
Check first when you have a trouble

5.5.11 Speed varies during operation

When Advanced magnetic flux vector control, Real sensorless vector control, vector control or encoder feedback
control is exercised, the output frequency varies with load fluctuation between 0 and 2Hz. This is a normal operation
and is not a fault.
Refer
Check
Possible Cause Countermeasures to
points
page
Select Advanced magnetic flux vector control, Real
Load Load varies during an operation. sensorless vector control, vector control, or encoder 75, 359
feedback control.
Frequency setting signal is varying. Check the frequency setting signal. —
Set filter to the analog input terminal using Pr. 74
269
Input filter time constant, Pr. 822 Speed setting filter 1.
The frequency setting signal is affected by EMI.
Take countermeasures against EMI, such as using
40
shielded wires for input signal lines.
Malfunction is occurring due to the undesirable Use terminal PC (terminal SD when source logic) as
Input
current generated when the transistor output unit is a common terminal to prevent a malfunction caused 26
signal
connected. by undesirable current.
Multi-speed command signal is chattering. Take countermeasures to suppress chattering. —
Place the encoder cable far from the EMI source
Feedback signal from the encoder is affected by such as main circuit and power supply voltage.
33
EMI. Earth (ground) the shield of the encoder cable to the
enclosure using a metal P-clip or U-clip.
Pr.80 Motor capacity and Pr.81 Number of motor poles
are not appropriate for the motor capacity under Check the settings of Pr.80 Motor capacity and Pr.81
75
Advanced magnetic flux vector control, Real Number of motor poles.
sensorless vector control, or vector control.
Change the Pr. 19 Base frequency voltage setting
Fluctuation of power supply voltage is too large. 142
(about 3%) under V/F control.
Wiring length exceeds 30m when Advanced
magnetic flux vector control, Real sensorless vector Perform offline auto tuning. 171
control, or vector control is selected.
Adjust the Pr. 0 Torque boost setting by increasing with
129
Wiring length is too long for V/F control, and the a 0.5% increments for the low-speed operation.
voltage drop occurs. Change the control method to Advanced magnetic
75
Parameter flux vector control or Real sensorless vector control.
Setting Disable automatic control functions, such as the
energy saving operation, the fast-response current
limit function, the torque limit, the regeneration
avoidance function, Advanced magnetic flux vector
control, Real sensorless vector control, vector control,
Hunting occurs by the generated vibration, for encoder feedback control, droop control, the stall
—
example, when structural rigidity at load side is prevention, online auto tuning, the notch filter, and
insufficient. orientation control.
During the PID control, set smaller values to Pr.129
PID proportional band and Pr.130 PID integral time.
Lower the control gain, and adjust to increase the
stability.
Change Pr. 72 PWM frequency selection setting. 261

406
 Check first when you have a trouble

5.5.12 Operation mode is not changed properly

Refer
Check
Possible Cause Countermeasures to
points
page
Check that the STF and STR signals are OFF.
Input
Start signal (STF or STR) is ON. When either is ON, the operation mode cannot be 290
signal
changed.
When Pr. 79 Operation mode selection setting is "0"
(initial value), the inverter is placed in the External
operation mode at input power ON. To switch to the

Pr. 79 setting is improper. PU operation mode, press on the operation 290

Parameter
Setting panel (press when the parameter unit (FR-
PU04/FR-PU07) is used) . At other settings (1 to 4, 6,
7), the operation mode is limited accordingly.
Operation mode and a writing device do not Check Pr. 79, Pr. 338, Pr. 339, Pr. 550, Pr. 551, and 290,
correspond. select an operation mode suitable for the purpose. 299

5.5.13 Operation panel (FR-DU07) display is not operating

Refer
Check
Possible Cause Countermeasures to
points
page
Main
Circuit,
Power is not input. Input the power. 14
Control
Circuit
Check if the inverter front cover is installed securely.
The inverter cover may not fit properly when using
Front Operation panel is not properly connected to the
wires whose size are 1.25mm2 or larger, or when 5
cover inverter.
using many wires, and this could cause a contact
fault of the operation panel.

5.5.14 Power lamp is not lit

Refer
Check

PROTECTIVE FUNCTIONS
Possible Cause Countermeasures to
points
page
Main
Check for the wiring and the installation.
Circuit,
Wiring or installation is improper. Power lamp is lit when power is input to the control 15
Control circuit (R1/L11, S1/L21).
Circuit

5.5.15 Unable to write parameter setting

Refer
Check
Possible Cause Countermeasures to
points
page
Stop the operation.
Input Operation is being performed (signal STF or STR is
When Pr. 77 = "0" (initial value), write is enabled only 284
signal ON).
during a stop.
Choose the PU operation mode.
5
You are attempting to set the parameter in the
Or, set Pr. 77 = "2" to enable parameter write 284
External operation mode.
regardless of the operation mode.
Parameter is disabled by the Pr. 77 Parameter write
Parameter selection setting. Check Pr. 77 Parameter write selection setting. 284
Setting
Key lock is activated by the Pr. 161 Frequency setting/ Check Pr. 161 Frequency setting/key lock operation
371
key lock operation selection setting. selection setting.
Operation mode and a writing device do not Check Pr. 79, Pr. 338, Pr. 339, Pr. 550, Pr. 551, and 290,
correspond. select an operation mode suitable for the purpose. 299

407
MEMO

408
 6 PRECAUTIONS FOR
MAINTENANCE AND INSPECTION

This chapter provides the "PRECAUTIONS FOR MAINTENANCE

AND INSPECTION" of this product.
Always read the instructions before using the equipment.

6.1 Inspection item ........................................................410

1
6.2 Measurement of main circuit voltages, currents and
powers.....................................................................416

7
409
Inspection item

The inverter is a static unit mainly consisting of semiconductor devices. Daily inspection must be performed to prevent
any fault from occurring due to the adverse effects of the operating environment, such as temperature, humidity, dust,
dirt and vibration, changes in the parts with time, service life, and other factors.

• Precautions for maintenance and inspection

For some short time after the power is switched off, a high voltage remains in the smoothing capacitor. When accessing
the inverter for inspection, wait for at least 10 minutes after the power supply has been switched off, and then make
sure that the voltage across the main circuit terminals P/+-N/− of the inverter is not more than 30VDC using a tester,
etc.

6.1 Inspection item

6.1.1 Daily inspection
Basically, check for the following faults during operation.
(1) Motor operation fault
(2) Improper installation environment
(3) Cooling system fault
(4) Unusual vibration and noise
(5) Unusual overheat and discoloration

6.1.2 Periodic inspection

Check the areas inaccessible during operation and requiring periodic inspection.
Consult us for periodic inspection.
1) Check for cooling system fault.................Clean the air filter, etc.
2) Tightening check and retightening ...........The screws and bolts may become loose due to vibration, temperature
changes, etc.
Tighten them according to the specified tightening torque. (Refer to page 18)
3) Check the conductors and insulating materials for corrosion and damage.
4) Measure insulation resistance.
5) Check and change the cooling fan and relay.

410
 Inspection item

6.1.3 Daily and periodic inspection

Interval
Inspection

Customer's
Area of

Check
Periodic
Corrective Action at
Inspection Item Description

Daily
Alarm Occurrence

*2
Surrounding Check the surrounding air temperature, humidity,
Improve environment
environment dirt, corrosive gas, oil mist , etc.
Check alarm location and
General Overall unit Check for unusual vibration and noise.
retighten
Power supply Check that the main circuit voltages and control
Inspect the power supply
voltage voltages are normal.*1
(1) Check with megger (across main circuit
Contact the manufacturer
terminals and earth (ground) terminal).
General (2) Check for loose screws and bolts. Retighten
(3) Check for overheat traces on the parts. Contact the manufacturer
(4) Check for stain. Clean
(1) Check conductors for distortion. Contact the manufacturer
Conductors, cables (2) Check cable sheaths for breakage and
deterioration (crack, discoloration, etc.). Contact the manufacturer
Check for unusual odor and abnormal increase in Stop the device and contact
Transformer/reactor
Main whining sound. the manufacturer.
circuit Stop the device and contact
Terminal block Check for damage.
the manufacturer.
Smoothing (1) Check for liquid leakage. Contact the manufacturer
aluminum (2) Check for safety valve projection and bulge. Contact the manufacturer
electrolytic (3) Visual check and judge by the life check of the
capacitor main circuit capacitor. (Refer to page 412)

PRECAUTIONS FOR MAINTENANCE AND INSPECTION

Check that the operation is normal and no chatter
Relay/contactor Contact the manufacturer
is heard.
(1) Check for crack in resistor insulation. Contact the manufacturer
Resistor
(2) Check for a break in the cable. Contact the manufacturer
(1) Check that the output voltages across phases
Contact the manufacturer
with the inverter operated alone is balanced.
Operation check (2) Check that no fault is found in protective and
display circuits in a sequence protective Contact the manufacturer
Control operation test.
circuit Stop the device and contact
(1) Check for unusual odor and discoloration.
protective Overall the manufacturer.
Parts check

circuit (2) Check for serious rust development. Contact the manufacturer
(1) Check for liquid leakage in a capacitor and
Aluminum Contact the manufacturer
deformation trace.
electrolytic
capacitor (2) Visual check and judge by the life check of the
control circuit capacitor. (Refer to page 364.)
(1) Check for unusual vibration and noise. Replace the fan
Fix with the fan cover fixing
Cooling fan (2) Check for loose screws and bolts.
screws
Cooling (3) Check for stain. Clean
system (1) Check for clogging. Clean
Heatsink
(2) Check for stain. Clean
(1) Check for clogging. Clean or replace
Air filter, etc.
(2) Check for stain. Clean or replace
(1) Check that display is normal. Contact the manufacturer
Indication
(2) Check for stain. Clean
Display
Stop the device and contact
Meter Check that reading is normal.
the manufacturer.
Load
Operation check
Check for vibration and abnormal increase in Stop the device and contact 6
motor operation noise. the manufacturer.
*1 It is recommended to install a device to monitor voltage for checking the power supply voltage to the inverter.
*2 One to two years of periodic inspection cycle is recommended. However, it differs according to the installation environment.
Consult us for periodic inspection.

411
Inspection item

6.1.4 Display of the life of the inverter parts

The self-diagnostic alarm is output when the lifespan of the control circuit capacitor, cooling fan, each parts of the
inrush current limit circuit is near its end. It gives an indication of replacement time .

The life alarm output can be used as a guideline for life judgement.
Parts Judgement Level
Main circuit capacitor 85% of the initial capacity
Control circuit capacitor Estimated 10% life remaining
Inrush current limit circuit Estimated 10% life remaining (Power on: 100,000 times left)
Cooling fan Less than 50% of the predetermined speed

Refer to page 364 to perform the life check of the inverter parts.

6.1.5 Checking the inverter and converter modules

<Preparation>
(1) Disconnect the external power supply cables (R/L1, S/L2, T/L3) and motor cables (U, V, W).
(2) Prepare a tester. (Use 100Ω range.)

<Checking method>
Change the polarity of the tester alternately at the inverter terminals R/L1, S/L2, T/L3, U, V, W, P/+ and N/−, and check
for electric continuity.

<Module device numbers and terminals to be checked>

Tester Polarity Measured Tester Polarity Measured P/+
Converter module Inverter module
Value Value
TR11 TR13 TR15 TR1 TR3 TR5
R/L1 P/+ Discontinuity R/L1 N/− Continuity
TR11 TR14
P/+ R/L1 Continuity N/− R/L1 Discontinuity
Converter
module

S/L2 P/+ Discontinuity S/L2 N/− Continuity R/L1

C U
TR13 TR16
P/+ S/L2 Continuity N/− S/L2 Discontinuity S/L2 V
T/L3 P/+ Discontinuity T/L3 N/− Continuity
TR15 TR12 T/L3 W
P/+ T/L3 Continuity N/− T/L3 Discontinuity
U P/+ Discontinuity U N/− Continuity
TR1 TR4
P/+ U Continuity N/− U Discontinuity TR14 TR16 TR12 TR4 TR6 TR2
Inverter
module

V P/+ Discontinuity V N/− Continuity

TR3 TR6 N/−
P/+ V Continuity N/− V Discontinuity
W P/+ Discontinuity W N/− Continuity
TR5 TR2
P/+ W Continuity N/− W Discontinuity
(Assumes the use of an analog meter.)

412
 Inspection item

6.1.6 Cleaning
Always run the inverter in a clean status.
When cleaning the inverter, gently wipe dirty areas with a soft cloth immersed in neutral detergent or ethanol.
CAUTION
Do not use solvent, such as acetone, benzene, toluene and alcohol, as they will cause the inverter surface paint to peel off.
The display, etc. of the operation panel (FR-DU07) and parameter unit (FR-PU04/FR-PU07) are vulnerable to detergent and
alcohol. Therefore, avoid using them for cleaning.

6.1.7 Replacement of parts

The inverter consists of many electronic parts such as semiconductor devices.
The following parts may deteriorate with age because of their structures or physical characteristics, leading to reduced
performance or fault of the inverter. For preventive maintenance, the parts must be replaced periodically.
Use the life check function as a guidance of parts replacement.
Part Name Estimated lifespan *1 Description
Cooling fan 10 years Replace (as required)
Main circuit smoothing capacitor 10 years *2 Replace (as required)
On-board smoothing capacitor 10 years Replace the board (as required)
Relays − as required
*1 Estimated lifespan for when the yearly average surrounding air temperature is 40°C
(without corrosive gas, flammable gas, oil mist, dust and dirt etc)
*2 Output current : 80% of the inverter rated current
REMARKS
· Since repeated inrush currents at power ON will shorten the life of the converter circuit, frequent starts and stops of the
magnetic contactor must be avoided.

CAUTION
For parts replacement, consult the nearest Mitsubishi FA Center.

PRECAUTIONS FOR MAINTENANCE AND INSPECTION

413
Inspection item

(1) Cooling fan

The replacement interval of the cooling fan used for cooling the parts generating heat such as the main circuit
semiconductor is greatly affected by the surrounding air temperature. When unusual noise and/or vibration is noticed
during inspection, the cooling fan must be replaced immediately.

• Removal
1) Remove a fan cover.
2) After removing a fan connector, remove a fan block.
3) Remove the fan.

Fan

Fan connection
connector

3)
2)

Fan block 1)

Fan cover
• Reinstallation
1) After confirming the orientation of the fan, reinstall the fan so that the arrow on the left of "AIR FLOW" faces up.

AIR FLOW

<Fan side face>

2) Install fans referring to the above figure.
CAUTION
• Installing the fan in the opposite of air flow direction can cause the inverter life to be shorter.
• Prevent the cable from being caught when installing a fan.
• Switch the power off before replacing fans. Since the inverter circuits are charged with voltage even after power off,
replace fans only when the inverter cover is on the inverter to prevent an electric shock accident.

414
 Inspection item

(2) Smoothing capacitors

A large-capacity aluminum electrolytic capacitor is used for smoothing in the main circuit DC section, and an aluminum
electrolytic capacitor is used for stabilizing the control power in the control circuit. Their characteristics are deteriorated
by the adverse effects of ripple currents, etc.
The replacement intervals greatly vary with the surrounding air temperature and operating conditions. When the
inverter is operated in air-conditioned, normal environment conditions, replace the capacitors about every 10 years.
The appearance criteria for inspection are as follows:
1) Case: Check the side and bottom faces for expansion
2) Sealing plate: Check for remarkable warp and extreme crack.
3) Check for external crack, discoloration, fluid leakage, etc. Judge that the capacitor has reached its life when the
measured capacitance of the capacitor reduced below 80% of the rating.

Refer to page 364 to perform the life check of the main circuit capacitor.
(3) Relays
To prevent a contact fault, etc., relays must be replaced according to the cumulative number of switching times
(switching life).

PRECAUTIONS FOR MAINTENANCE AND INSPECTION

415
Measurement of main circuit voltages,
currents and powers

6.2 Measurement of main circuit voltages, currents and powers

Since the voltages and currents on the inverter power supply and output sides include harmonics, measurement
data depends on the instruments used and circuits measured.
When instruments for commercial frequency are used for measurement, measure the following circuits with the
instruments given on the next page.
When installing meters etc. on the inverter output side
When the inverter-to-motor wiring length is large, especially in the 400V class, small-capacity models, the meters
and CTs may generate heat due to line-to-line leakage current. Therefore, choose the equipment which has
enough allowance for the current rating.
When measuring and indicating the output voltage and output current of the inverter, it is recommended to utilize
the terminals AM and FM output function of the inverter.

Input voltage Output voltage

Input current
Output current

Inverter

Ar W11 R/L1 U Au W21

Three Vr Vu
phase
As W12 S/L2 V Av To the motor
power
supply Vs Vv
At W13 T/L3 W Aw W22
Vt Vw
P/+ N/-
: Moving-iron type

: Electrodynamometer type
V
+ -
: Moving-coil type
Instrument
types : Rectifier type

Examples of Measuring Points and Instruments

416
 Measurement of main circuit voltages,
currents and powers

Measuring points and instruments

Item Measuring Point Measuring Instrument Remarks (Reference Measured Value)
Across R/L1 and S/ Commercial power supply
Power supply voltage Moving-iron type AC
L2, S/L2 and T/L3, Within permissible AC voltage fluctuation
V1 voltmeter *4
T/L3 and R/L1 (Refer to page 422)
Power supply side
R/L1, S/L2, and T/L3 Moving-iron type AC
current
line currents ammeter *4
I1
R/L1, S/L2, T/L3 and Digital power meter
Power supply side
R/L1 and S/L2, (designed for inverter) or
power P1=W11+W12+W13 (3-wattmeter method)
S/L2 and T/L3, electrodynamic type
P1
T/L3 and R/L1 single-phase wattmeter
Calculate after measuring power supply voltage, power supply side current and power supply side power.
Power supply side
power factor P1
Pf1 Pf1 = ————— × 100%
3 V1 × I1
Rectifier type AC voltage
Across U and V,
Output side voltage meter *1 *4 Difference between the phases is within ±1% of the
V and W
V2 (Moving-iron type cannot maximum output voltage.
and W and U
measure)
Output side current U, V and W line Moving-iron type AC Difference between the phases is 10% or lower of the
I2 currents ammeter *2 *4 rated inverter current.
Digital power meter
U, V, W and
Output side power (designed for inverter) or P2 = W21 + W22
U and V,
P2 electrodynamic type 2-wattmeter method (or 3-wattmeter method)
V and W
single-phase wattmeter
Calculate in similar manner to power supply side power factor.
Output side power
factor P2
Pf2 = ————— × 100%
Pf2 3 V2 × I2

Moving-coil type (such as

PRECAUTIONS FOR MAINTENANCE AND INSPECTION

Converter output Across P/+ and N/− Inverter LED display is lit. 1.35 × V1
tester)
Across 2 and 5
Frequency setting 0 to 10VDC, 4 to 20mA
Across 4(+) and 5
signal
Across 1(+) and 5 0 to ±5VDC, 0 to ±10VDC
"5" is
Frequency setting Across 10 (+) and 5 5.2VDC
common
power supply Across 10E(+) and 5 10VDC
Approximately 10VDC at maximum frequency
Across AM(+) and 5
(without frequency meter)
Approximately 5VDC at maximum frequency
(without frequency meter)
T1
Moving-coil type
Frequency meter (Tester and such may be
signal 8VDC
Across FM(+) and SD used)
(Internal resistance:
T2
50kΩ or larger) Pulse width T1:
Adjusted by C0 (Pr. 900) "SD" is
Pulse cycle T2: Set by Pr. 55 common
(Valid for frequency monitoring only)
Across SD and the
following:
Start signal
STF, STR, RH, RM, When open
Select signal
RL, JOG, RT, AU, 20 to 30VDC
STOP, CS (+) ON voltage: 1V or less
Reset Across RES (+) and SD
Output stop Across MRS (+) and SD
Electric continuity check*3
Across A1 and C1 Moving-coil type <Normal> <Abnormal>
Alarm signal
Across B1 and C1 (such as tester) Across A1-C1 Discontinuity Continuity
Across B1-C1 Continuity Discontinuity
*1 Use an FFT to measure the output voltage accurately. A tester or general measuring instrument cannot measure accurately. 6
*2 When the carrier frequency exceeds 5kHz, do not use this instrument since using it may increase eddy-current losses produced in metal parts
inside the instrument, leading to burnout. If the wiring length between the inverter and motor is long, the instrument and CT may generate
heat due to line-to-line leakage current.
*3 When the setting of Pr. 195 ABC1 terminal function selection is positive logic
*4 A digital power meter (designed for inverter) can also be used to measure.

417
Measurement of main circuit voltages,
currents and powers

6.2.1 Measurement of powers

Use digital power meters (for inverter) for the both of inverter input and output side. Alternatively, measure using
electrodynamic type single-phase wattmeters for the both of inverter input and output side in two-wattmeter or
three- wattmeter method. As the current is liable to be imbalanced especially in the input side, it is recommended to
use the three-wattmeter method.
Examples of measured value differences produced by different measuring meters are shown below.
An error will be produced by difference between measuring instruments, e.g. power calculation type and two- or
three-wattmeter type three-phase wattmeter. When a CT is used in the current measuring side or when the meter
contains a PT on the voltage measurement side, an error will also be produced due to the frequency characteristics
of the CT and PT.
[Measurement conditions] [Measurement conditions]
Constant-torque (100%) load, constant-power at 60Hz Constant-torque (100%) load, constant-power at 60Hz
or more. or more.
3.7kW, 4-pole motor, value indicated in 3-wattmeter 3.7kW, 4-pole motor, value indicated in 3-wattmeter
method is 100%. method is 100%.
% %
120 120

100 100

80 3-wattmeter method (Electro-dynamometer type) 80 3-wattmeter method (Electro-dynamometer type)

2-wattmeter method (Electro-dynamometer type) 2-wattmeter method (Electro-dynamometer type)
Clip AC power meter Clip AC power meter
(For balanced three-phase load) (For balanced three-phase load)
60 Clamp-on wattmeter 60 Clamp-on wattmeter
(Hall device power arithmetic type) (Hall device power arithmetic type)

0 20 40 60 80 100 120Hz 0 20 40 60 80 100 120Hz

Example of measuring inverter input power Example of measuring inverter output power

6.2.2 Measurement of voltages and use of PT

(1) Inverter input side
As the input side voltage has a sine wave and it is extremely small in distortion, accurate measurement can be
made with an ordinary AC meter.

(2) Inverter output side

Since the output side voltage has a PWM-controlled rectangular wave, always use a rectifier type voltmeter. A
needle type tester can not be used to measure the output side voltage as it indicates a value much greater than the
actual value. A moving-iron type meter indicates an effective value which includes harmonics and therefore the
value is larger than that of the fundamental wave. The value monitored on the operation panel is the inverter
controlled voltage itself. Hence, that value is accurate and it is recommended to monitor values (provide analog
output) using the operation panel.

(3) PT
No PT can be used in the output side of the inverter. Use a direct-reading meter. (A PT can be used in the input side
of the inverter.)

418
 Measurement of main circuit voltages,
currents and powers

6.2.3 Measurement of currents

Use a moving-iron type meter on both the input and output sides of the inverter. However, if the carrier frequency
exceeds 5kHz, do not use that meter since an overcurrent losses produced in the internal metal parts of the meter
will increase and the meter may burn out. In this case, use an approximate-effective value type.
As the inverter input side current is easily imbalanced, measurement of currents in all three phases is
recommended. Correct values can not be measured in one or two phases. On the other hand, the phase
imbalanced ratio of the output side current must be within 10%.
When using a clamp ammeter, always use an effective value detection type. A mean value detection type produces
a large error and may indicate an extremely smaller value than the actual value. The value monitored on the
operation panel is accurate if the output frequency varies, and it is recommended to monitor values (provide analog
output) using the operation panel.
An example of the measured value difference produced by different measuring meters is shown below.
[Measurement conditions] [Measurement conditions]
Value indicated by moving-iron type ammeter is 100%. Value indicated by moving-iron type ammeter is 100%.
% %
120 Clip AC 120 Clip AC
power meter power meter
Moving-iron
type Moving-iron type
100 100

80 80 Clamp meter
Clamp-on wattmeter
current measurement
60 60
Clamp meter Clamp-on wattmeter
current measurement

0 20 40 60Hz 0 20 40 60Hz

PRECAUTIONS FOR MAINTENANCE AND INSPECTION

Example of measuring inverter input current Example of measuring inverter output current

6.2.4 Use of CT and transducer

A CT may be used in both the input and output sides of the inverter, but the one used should have the largest
possible VA ability because an error will increase if the frequency gets lower.
When using a transducer, use the effective value calculation type which is immune to harmonics.

6.2.5 Measurement of inverter input power factor

Use the effective power and apparent power to calculate the inverter input power factor. A power-factor meter can
not indicate an exact value.

Effective power
Total power factor of the inverter =
Apparent power
Three-phase input power found by 3-wattmeter method
=
3 × V (power supply voltage) × I (input current effective value)

419
Measurement of main circuit voltages,
currents and powers

6.2.6 Measurement of converter output voltage (across terminals P/+ and N/-)
The output voltage of the converter is developed across terminals P/+ - N/- and can be measured with a moving-coil
type meter (tester). Although the voltage varies according to the power supply voltage, approximately 270V to 300V
(approximately 540V to 600V for the 400V class) is output when no load is connected and voltage decreases when
a load is connected.
When energy is regenerated from the motor during deceleration, for example, the converter output voltage rises to
nearly 400VDC to 450VDC (800VDC to 900VDC for the 400V class) maximum.

6.2.7 Measurement of inverter output frequency

A pulse train proportional to the output frequency is output across the frequency meter signal output terminal FM-
SD of the inverter. This pulse train output can be counted by a frequency counter, or a meter (moving-coil type
voltmeter) can be used to read the mean value of the pulse train output voltage. When a meter is used to measure
the output frequency, approximately 5VDC is indicated at the maximum frequency.
For detailed specifications of the frequency meter signal output terminal FM, refer to page 240.

6.2.8 Insulation resistance test using megger

For the inverter, conduct the insulation resistance test on the main circuit only as shown below and do not perform
the test on the control circuit. (Use a 500VDC megger.)
CAUTION
• Before performing the insulation resistance test on the external circuit, disconnect the cables from all terminals of the
inverter so that the test voltage is not applied to the inverter.
• For the electric continuity test of the control circuit, use a tester (high resistance range) and do not use the megger or
buzzer.

Motor
Power R/L1 Inverter U
S/L2 V IM
supply
T/L3 W

500VDC
megger

Earth (ground)

6.2.9 Pressure test

Do not conduct a pressure test. Deterioration may occur.

420
 7 SPECIFICATIONS

This chapter provides the "SPECIFICATIONS" of this product.

Always read the instructions before using the equipment.

7.1 Rating ......................................................................422

7.2 Common specifications ...........................................424
7.3 Outline dimension drawings ....................................425 1
7.4 Installation of the heatsink portion outside the
enclosure for use.....................................................434

7
421
 Rating

7.1 Rating
7.1.1 Inverter rating
200V class
Model FR-A721- K 5.5 7.5 11 15 18.5 22 30 37 45 55
Applicable motor capacity (kW) *1 5.5 7.5 11 15 18.5 22 30 37 45 55
Rated capacity (kVA) *2 9.2 12.6 17.6 23.3 29 34 44 55 67 82
Rated current (A) 24 33 46 61 76 90 115 145 175 215
Output

150% 60s, 200% 3s (inverse-time characteristics)

Overload current rating *3
surrounding air temperature 50°C
Rated voltage *4 Three-phase 200 to 240V
Regenerative braking torque 100% continuous 150% 60s
Rated input
Power supply

Three-phase 200 to 220V 50Hz, 200 to 240V 60Hz

AC voltage/frequency
Permissible AC voltage fluctuation 170 to 242V 50Hz,170 to 264V 60Hz
Permissible frequency fluctuation ±5%
Power supply capacity (kVA) *5 12 17 20 28 34 41 52 66 80 100
Protective structure (JEM 1030) *6 Open type (IP00)
Cooling system Forced air cooling
Approx. mass (kg) 20 22 33 35 50 52 69 87 90 120
*1 The applicable motor capacity indicated is the maximum capacity applicable for use of the Mitsubishi 4-pole standard motor.
*2 The rated output capacity indicated assumes that the output voltage is 220V.
*3 The % value of the overload current rating indicated is the ratio of the overload current to the inverter's rated output current. For repeated duty,
allow time for the inverter and motor to return to or below the temperatures under 100% load.
*4 The maximum output voltage does not exceed the power supply voltage. The maximum output voltage can be changed within the setting range.
However, the pulse voltage value of the inverter output side voltage remains unchanged at about 2 that of the power supply.
*5 The power supply capacity varies with the value of the power supply side inverter impedance (including those of the input reactor and cables).
*6 FR-DU07:IP40 (except for the PU connector)

z400V class
Model FR-A741- K 5.5 7.5 11 15 18.5 22 30 37 45 55
Applicable motor capacity (kW) *1 5.5 7.5 11 15 18.5 22 30 37 45 55
Rated capacity (kVA) *2 9.1 13 17.5 23.6 29 32.8 43.4 54 65 84
Rated current (A) 12 17 23 31 38 44 57 71 86 110
Output

150% 60s, 200% 3s (inverse-time characteristics)

Overload current rating *3
surrounding air temperature 50°C
Rated voltage *4 Three-phase 380 to 480V
Regenerative braking torque 100% continuous 150% 60s
Rated input
Power supply

Three-phase 380 to 480V 50Hz/60Hz

AC voltage/frequency
Permissible AC voltage fluctuation 323 to 528V 50Hz/60Hz
Permissible frequency fluctuation ±5%
Power supply capacity (kVA) *5 12 17 20 28 34 41 52 66 80 100
Protective structure *6 Open type (IP00)
Cooling system Forced air cooling
Approx. mass (kg) 25 26 37 40 48 49 65 80 83 115
*1 The applicable motor capacity indicated is the maximum capacity applicable for use of the Mitsubishi 4-pole standard motor.
*2 The rated output capacity indicated assumes that the output voltage is 440V.
*3 The % value of the overload current rating indicated is the ratio of the overload current to the inverter's rated output current. For repeated duty,
allow time for the inverter and motor to return to or below the temperatures under 100% load.
*4 The maximum output voltage does not exceed the power supply voltage. The maximum output voltage can be changed within the setting range.
However, the pulse voltage value of the inverter output side voltage remains unchanged at about 2 that of the power supply.
*5 The power supply capacity varies with the value of the power supply side inverter impedance (including those of the input reactor and cables).
*6 FR-DU07:IP40 (except for the PU connector)

422
 Rating

7.1.2 Motor rating

(1) SF-V5RU

z200V class (Mitsubishi dedicated motor [SF-V5RU (1500r/min series)])

Motor model
3 5 7 11 15 18 22 30 37 45
SF-V5RU K
Applicable inverter
model 5.5 7.5 11 15 18.5 22 30 37 45 55
FR-A721- K
Rated output (kW) 3.7 5.5 7.5 11 15 18.5 22 30 *1 37 *1 45 *1
Rated torque (N·m) 23.6 35.0 47.7 70.0 95.5 118 140 191 235 286
Maximum torque 150%
35.4 52.4 71.6 105 143 176 211 287 353 429
60s (N·m)
Rated speed (r/min) 1500
Maximum speed (r/min) 3000
Frame No. 112M 132S 132M 160M 160L 180M 180M 200L 200L 200L
Inertia moment J
175 275 400 750 875 1725 1875 3250 3625 3625
(×10-4kg·m2)
Noise *4 75dB or less 80dB or less
Voltage Single-phase 200V/50Hz Three-phase 200V/50Hz
Cooling fan Single-phase 200V to 230V/60Hz Three-phase 200 to 230V/60Hz
(with thermal 36/55W
22/28W 55/71W 100/156W
protector) *5 Input *2 (0.26/
0.32A) (0.11/0.13A) (0.37/0.39A) (0.47/0.53A)
Surrounding air
-10 to +40°C (non-freezing), 90%RH or less (non-condensing)
temperature, humidity
Structure Totally enclosed forced draft system
(Protective structure) (Motor: IP44, cooling fan: IP23S) *3
Detector Encoder 2048P/R, A phase, B phase, Z phase +12VDC power supply
Equipment Encoder, thermal protector, fan
Heat resistance class F
Vibration rank V10
Approx. mass (kg) 41 52 62 99 113 138 160 238 255 255

z400V class (Mitsubishi dedicated motor [SF-V5RUH (1500r/min series)])

Motor model
5 7 11 15 18 22 30 37 45
SF-V5RUH K
Applicable inverter model
7.5 11 15 18.5 22 30 37 45 55
FR-A741- K
Rated output (kW) 5.5 7.5 11 15 18.5 22 30 *1 37 *1 45 *1
Rated torque (N·m) 35.0 47.7 70.0 95.5 118 140 191 235 286
Maximum torque 150% 60s
52.4 71.6 105 143 176 211 287 353 429
(N·m)
Rated speed (r/min) 1500
Maximum speed (r/min) 3000
Frame No. 132S 132M 160M 160L 180M 180M 200L 200L 200L
Inertia moment J
275 400 750 875 1725 1875 3250 3625 3625
(×10-4kg·m2)
Noise *4 75dB or less 80dB or less
Single-phase 200V/50Hz
Cooling fan Three-phase 380 to 400V/50Hz
Voltage Single-phase 200V to 230V/
Three-phase 400 to 460V/60Hz
(with thermal 60Hz
protector) *5 22/28W 55/71W 100/156W
Input *1
(0.11/0.13A) (0.19/0.19A) (0.27/0.30A)
Surrounding air
-10 to +40°C (non-freezing), 90%RH or less (non-condensing)
temperature, humidity
Structure Totally enclosed forced draft system
(Protective structure) (Motor: IP44, cooling fan: IP23S) *3
Detector Encoder 2048P/R, A phase, B phase, Z phase +12VDC power supply
SPECIFICATIONS

Equipment Encoder, thermal protector, fan

Heat resistance class F
Vibration rank V10
Approx. mass (kg) 52 62 99 113 138 160 238 255 255
*1 80% output in the high-speed range. (The output is reduced when the speed is 2400r/min or more. Contact us separately for details.)
*2 Power (current) at 50Hz/60Hz.
*3 Since a motor with brake has a window for gap check, the protective structure of both the cooling fan section and brake section is IP20. S of
IP23S is an additional code indicating the condition that protection from water intrusion is established only when a cooling fan is not operating.
*4 The value when high carrier frequency is set (Pr.72 = 6, Pr.240 = 0).
*5 The cooling fan is equipped with a thermal protector. The cooling fan stops when the coil temperature exceeds the specified value in order to
protect the fan motor. The cooling fan re-starts when the coil temperature drops to normal.

7
423
 Common specifications

7.2 Common specifications

Soft-PWM control/high carrier frequency PWM control (V/F control, Advanced magnetic flux vector control and Real sensorless
Control method
vector control are available) / vector control *1
Output frequency range 0.2 to 400Hz (The maximum frequency is 120Hz under Real sensorless vector control and vector control.)
0.015Hz/60Hz (terminal 2, 4: 0 to 10V/12bit)
Frequency Analog input 0.03Hz/60Hz (terminal 2, 4: 0 to 5V/11bit, 0 to 20mA/about 11bit, terminal 1: 0 to ±10V/12bit)
setting
Control specifications

0.06Hz/60Hz (terminal 1: 0 to ±5V/11bit)

resolution
Digital input 0.01Hz
Frequency Analog input Within ±0.2% of the max. output frequency (25°C±10°C)
accuracy Digital input Within 0.01% of the set output frequency
Voltage/frequency characteristics Base frequency can be set from 0 to 400Hz Constant torque/variable torque pattern or adjustable 5 points V/F can be selected
Starting torque 150% at 0.3Hz (under Real sensorless vector control or vector control *1)
Torque boost Manual torque boost
Acceleration/deceleration time 0 to 3600s (acceleration and deceleration can be set individually), linear or S-pattern acceleration/deceleration mode, backlash
setting measures acceleration/deceleration mode are available.
DC injection brake Operation frequency (0 to 120Hz), operation time (0 to 10s), operation voltage (0 to 30%) can be changed
Stall prevention operation level Operation current level can be set (0 to 220% adjustable), whether to use the function or not can be selected
Torque limit level Torque limit value can be set (0 to 400% variable)
Frequency Analog input • Terminal 2, 4: 0 to 10V, 0 to 5V, 4 to 20mA (0 to 20mA) can be selected• Terminal 1: -10 to +10V, -5 to +5V can be selected
setting Input using the setting dial of the operation panel or parameter unit
signal Digital input
Four-digit BCD or 16 bit binary (when used with option FR-A7AX)
Start signal Forward and reverse rotation or start signal automatic self-holding input (3-wire input) can be selected.
The following signals can be assigned to Pr. 178 to Pr. 189 (input terminal function selection): multi speed selection, remote setting, stop-
on-contact, second function selection, third function selection, terminal 4 input selection, JOG operation selection, selection of
automatic restart after instantaneous power failure, flying start, external thermal relay input, PU operation/external inter lock signal,
external DC injection brake operation start, PID control enable terminal, brake opening completion signal, PU operation/External
operation switchover, load pattern selection forward rotation reverse rotation boost, V/F switching, load torque high-speed frequency,
Input signals (twelve terminals)
S-pattern acceleration/deceleration C switchover, pre-excitation, output stop, start self-holding selection, control mode changing,
torque limit selection, start-time tuning start external input, torque bias selection 1, 2*1, P/PI control switchover, forward rotation
command, reverse rotation command, inverter reset, PTC thermistor input, PID forward reverse operation switchover, PU-NET
operation switchover, NET-External operation switchover, command source switchover, simple position pulse train sign*1, simple
position droop pulse clear*1, magnetic flux decay output shutoff.
Pulse train input 100kpps
Maximum/minimum frequency setting, frequency jump operation, external thermal relay input selection, polarity reversible operation,
Operation specifications

automatic restart after instantaneous power failure operation, electronic bypass operation, forward/reverse rotation prevention,
remote setting, brake sequence, second function, third function, multi-speed operation, original operation continuation at
Operational functions instantaneous power failure, stop-on-contact control, load torque high speed frequency control, droop control, regeneration
avoidance, slip compensation, operation mode selection, offline auto tuning function, online auto tuning function, PID control,
computer link operation (RS-485), motor end orientation *1, machine end orientation *2, pre-excitation, notch filter, machine analyzer
*1, easy gain tuning, speed feed forward, and torque bias *1
Output signals The following signals can be assigned to Pr. 190 to Pr. 196 (output terminal function selection): inverter running, inverter running/start
Open collector output (5 command on, up-to-frequency, instantaneous power failure/undervoltage, overload warning, output frequency (speed) detection,
terminals) second output frequency (speed) detection, third output frequency (speed) detection, electronic thermal relay function pre-alarm, PU
relay output (1 terminal) operation mode, inverter operation ready, output current detection, zero current detection, PID lower limit, PID upper limit, PID
forward rotation reverse rotation output, electronic bypass MC1, electronic bypass MC2, electronic bypass MC3, orientation fault *1,
brake opening request, fan fault output, heatsink overheat pre-alarm, deceleration at an instantaneous power failure, PID control
activated, during retry, PID output interruption, position control preparation ready *1, life alarm, fault output 1, 2, 3 (power-off signal),
Operating status power savings average value update timing, current average monitor, maintenance timer alarm, remote output, forward rotation
output *1, reverse rotation output *1, low speed output, torque detection, regenerative status output *1, start-time tuning completion,
in-position completion *1, alarm output and fault output. Alarm code of the inverter can be output (4 bit) from the open collector.
In addition to above, the following signal can be assigned to Pr.313 to Pr. 319 (extension output terminal function selection): control circuit
When used with the FR-
capacitor life, main circuit capacitor life, cooling fan life, inrush current limit circuit life. (only positive logic can be set for extension
A7AY, FR-A7AR (option)
terminals of the FR-A7AR)
Pulse train output 50kpps
For meter The following signals can be assigned to Pr. 54 FM terminal function selection (pulse train output) and Pr. 158 AM terminal function selection
Pulse train output (analog output): output frequency, motor current (steady or peak value), output voltage, frequency setting, operation speed, motor
(Max. 2.4kHz: one terminal) torque, converter output voltage (steady or peak value), electronic thermal relay function load factor, input power, output power, load
Analog output meter, motor excitation current, reference voltage output, motor load factor, power saving effect, PID set point, PID measured value,
(Max. 10VDC: one terminal) motor output, torque command, torque current command, and torque monitor.
The following operating status can be displayed: Output frequency, motor current (steady or peak value), output voltage, frequency
setting, running speed, motor torque, overload, converter output voltage (steady or peak value), electronic thermal relay function
Operation load factor, input power, output power, load meter, motor excitation current, position pulse*1, cumulative energization time,
panel Operating status orientation status *1, actual operation time, motor load factor, cumulative power, energy saving effect, cumulative saving power,
Indication

(FR-DU07) regenerative brake duty, PID set point, PID measured value, PID deviation, inverter I/O terminal monitor, input terminal option
monitor*3, output terminal option monitor*3, option fitting status*4, terminal assignment status*4, torque command, torque current
Parameter command, feed back pulse*1, motor output
unit (FR- Fault record is displayed when a fault occurs, the output voltage/current/frequency/cumulative energization time right before the fault
PU07) Fault record
occurs and past 8 fault records are stored.
Interactive guidance Function (help) for operation guide*4
Overcurrent during acceleration, overcurrent during constant speed, overcurrent during deceleration, overvoltage during
acceleration, overvoltage during constant speed, overvoltage during deceleration, inverter protection thermal operation, motor
protection thermal operation, heatsink overheat, instantaneous power failure occurrence, undervoltage, input phase loss *6, motor
overload, output side earth (ground) fault overcurrent, output short circuit, main circuit element overheat, output phase loss, external
thermal relay operation*6, PTC thermistor operation*6, option fault, parameter error, PU disconnection, retry count excess*6, CPU
Protective function
Protective/ fault, operation panel power supply short circuit, 24VDC power output short circuit, output current detection value excess*6, inrush
warning current limit circuit fault, communication fault (inverter), USB fault, opposite rotation deceleration fault*6, analog input fault, speed
function deviation large *1*6, overspeed *1*6, excessive position fault *1*6, signal loss detection *1*6, brake sequence fault*6, encoder phase
error *1*6, regeneration converter overcurrent, regeneration converter circuit fault, regeneration converter transistor protection thermal,
internal circuit fault, power supply fault
Fan fault, overcurrent stall prevention, overvoltage stall prevention, electronic thermal relay function prealarm, PU stop, maintenance
Warning function timer alarm *6, parameter write error, copy operation error, operation panel lock, password locked, parameter copy alarm, speed limit
indication
Surrounding air temperature -10°C to +50°C (non-freezing)
Environment

Ambient humidity 90%RH maximum (non-condensing)

Storage temperature*5 -20°C to +65°C
Atmosphere Indoors (without corrosive gas, flammable gas, oil mist, dust and dirt etc.)
Altitude/vibration Maximum 1000mabove sea level for standard operation. 5.9m/s2 or less at 10 to 55Hz (directions of X, Y, Z axes)
*1 Available only when the option (FR-A7AP/FR-A7AL) is mounted.
*2 Available only when the option (FR-A7AL) is mounted.
*3 Can be displayed only on the operation panel (FR-DU07).
*4 Can be displayed only on the parameter unit (FR-PU07).
*5 Temperature applicable for a short period in transit, etc.
*6 This protective function is not available in the initial status.

424
 Outline dimension drawings

7.3 Outline dimension drawings

7.3.1 Inverter outline dimension drawings
FR-A721-5.5K, 7.5K
FR-A741-5.5K, 7.5K

2-φ10 hole

454
470

425
10 2.3
190
250 270

205

Inverter model D1 D2
D2
170

FR-A721-5.5K, A7.5K 163 90

FR-A741-5.5K, A7.5K 168 85
D1
100

234
(Unit: mm)

FR-A721-11K, 15K
FR-A741-11K, 15K

2- φ10 hole
15

540
575
600

10 3.2
10

220
300 294

255
SPECIFICATIONS
D2
169

Inverter model D1 D2
FR-A721-11K, 15K 213 64
D1

FR-A741-11K, 15K 224 53

125

284
(Unit: mm)

7
425
Outline dimension drawings

FR-A721-18.5K, 22K

2-φ12 hole

15
FAN

535
575
600
3.2

10
12
290
320
390

345
84
190

219
130

370

(Unit: mm)

FR-A741-18.5K, 22K
15

2-φ12 hole FAN

600
575

535

12
3.2
260
10

360 320
315
65
190

238
130

340
(Unit: mm)

426
 Outline dimension drawings

FR-A721-30K
FR-A741-30K

2-φ12 hole

15
FAN

700
675

635
12
10

350 340
450
405
D2
195

Inverter model D1 D2
FR-A721-30K 240.5 82.5
D1
145

FR-A741-30K 252.5 70.5

430

(Unit: mm)

FR-A721-37K, 45K
FR-A741-37K, 45K
15

2-φ14 hole FAN

630
700
670

14
15

370 3.2
470 368
405
D2
205

Inverter model D1 D2
SPECIFICATIONS

FR-A721-37K, 45K 257.5 93.5

D1
163

FR-A741-37K, 45K 281.5 69.5

450

(Unit: mm)

7
427
Outline dimension drawings

FR-A721-55K
FR-A741-55K

15
2-φ14 hole FAN

830
870
900

14 3.2
15

480 405
600

555
D2
215

Inverter model D1 D2
FR-A721-55K 312 76
D1

FR-A741-55K 324.5 64
190

580

(Unit: mm)

428
 Outline dimension drawings

Operation panel (FR-DU07)

<Outline drawing> <Panel cutting dimension drawing>

Panel
FR-DU07 27.8
3.2max

3
21

6
44
44
50
Air-

22
bleeding
hole
20
3

2-M3 screw Cable

3 72 3 16 72 Operation panel connection connector
78 25 (FR-ADP option)
81
(Unit: mm)

Parameter unit (option) (FR-PU07)

<Outline drawing> <Panel cutting dimension drawing>

25.05
(14.2) (11.45)
83
2.5

40 40

*1
*1 Air-bleeding
hole
50

51

4-R1

*1 *1
135

67

57.8
56.8

26.5 26.5 4-φ4 hole

(Effective depth of the installation
screw hole 5.0)
M3 screw *2

*1 When installing FR-PU07 on the enclosure, etc., remove screws for fixing the
FR-PU07 to the inverter or fix the screws to the FR-PU07 with M3 nuts.
80.3 *2 Select the installation screws whose length will not exceed the effective
depth of the installation screw hole.

(Unit: mm)
SPECIFICATIONS

7
429
Outline dimension drawings

7.3.2 Dedicated motor outline dimension drawings

Dedicated motor (SF-V5RU(H)) outline dimension drawings (standard horizontal type)
Frame Number 112M, 132S, 132M
SF-V5RU(H) 3K , 5K , 7K

Connector (for encoder)

MS3102A20-29P
L
R
A B Q
KA QK KL
Exhaust D For cooling fan (A, B)
Suction For motor (U, V, W)
Thermal protector (G1, G2)
A

I
H
A B U V W G1 G2
KG

6.5
C
A
φ27
Direction of Earthing (grounding) terminal (M4)
cooling fan wind 40
F F XB
Mark for earthing E E
N
(grounding) M
Earth (ground) terminal (M5) W ML Sliding distance
4
U
T

12

S
Frame leg viewed
Section AA from above

Frame Number 160M, 160L, 180M, 180L Frame Number 200L

SF-V5RU(H) 11K , 15K , 18K , 22K SF-V5RU(H) 30K , 37K , 45K

Connector (for encoder) Connector (for encoder)

MS3102A20-29P MS3102A20-29P

L L
R R
KL
A B 110 A B 140 D
D
KA 90 KA 110
Exhaust
Suction φ90
Exhaust
Suction
With guard A
wires With guard
I

KP
H

KG

wires

H
C

A
KG

φ56
8

C
Direction of
50

11
cooling fan
wind Mark for earthing XB E E
F F Direction of 70
(grounding) M Mark for earthing
N cooling fan F F XB E E
wind (grounding)
Earth (ground)
N M
terminal (M8) For motor (U, V, W)
Sliding distance
W 4 Earth (ground)
W Sliding distance
U

terminal (M12)
T

4
14.5

U
T

18.5

S Earthing (grounding)
Frame leg viewed terminal (M8)
Section AA from above S
Frame leg viewed
Section AA from above
Make sure to earth the earth terminal of the frame installation foot
For cooling fan (A, B, C) For thermal protector (G1, G2) as well as the earth terminal in the terminal box.

Dimensions table (Unit: mm)

SF-V5RU SF-V5RU SF-V5RU SF-V5RU Frame Mass Motor Terminal Screw Size
K K1 K3 K4 No. (kg) A B C D E F H I KA KG KL(KP) L M ML N XB Q QK R S T U W U,V,W A,B,(C) G1,G2
3 — — — 112M 41 278 135 112 228 95 70 226 253 69 93 242 478 230 242 180 70 60 45 200 28j6 7 4 8 M6 M4 M4
5 3 — — 132S 52 303 152 132 266 108 70 265 288 75 117 256 542 256 268 180 89 80 63 239 38k6 8 5 10 M6 M4 M4
7 5 3 — 132M 62 322 171 132 266 108 89 265 288 94 117 256 580 256 268 218 89 80 63 258 38k6 8 5 10 M6 M4 M4
11 7 5 — 160M 99 412 198 160 318 127 105 316 367 105 115 330 735 310 — 254 108 — — 323 42k6 8 5 12 M8 M4 M4
15 11 7 3 160L 113 434 220 160 318 127 127 316 367 127 115 330 779 310 — 298 108 — — 345 42k6 8 5 12 M8 M4 M4
18 — — — 138
180M 438.5 225.5 180 363 139.5 120.5 359 410 127 139 352 790 335 — 285 121 — — 351.5 48k6 9 5.5 14 M8 M4 M4
22 15 11 — 160
— 18 15 5 180L 200 457.5 242.5 180 363 139.5 139.5 359 410 146 139 352 828 335 — 323 121 — — 370.5 55m6 10 6 16 M8 M4 M4
30 — — 7 238
200L 483.5 267.5 200 406 159 152.5 401 — 145 487 (546) 909 390 — 361 133 — — 425.5 60m6 — — — M10 M4 M4
37, 45 22, 30 18, 22 — 255
— 37 30 11, 15 225S 320 500 277 225 446 178 143 446 — 145 533 (592) 932 428 — 342 149 — — 432 65m6 — — — M10 M4 M4

Note) 1. Install the motor on the floor and use it with the shaft horizontal.
2. Leave an enough clearance between the fan suction port and wall to ensure adequate cooling.
Also, check that the ventilation direction of a fan is from the opposite load side to the load side.
0
3 The size difference of top and bottom of the shaft center height is -0.5

4 The 400V class motor has -H at the end of its type name.

430
 Outline dimension drawings

Dedicated motor (SF-V5RU(H)) outline dimension drawings (standard horizontal type with brake)

Frame Number 112M, 132S, 132M

SF-V5RU(H) 3KB , 5KB , 7KB

Connector (for encoder)

MS3102A20-29P Terminal box for cooling fan
L
A R KL
D
KA B Q

φ22
1 Main terminal box Terminal box for cooling fan
Exhaust Main QK For brake (B1, B2)
Suction terminal box
For motor (U, V, W)
1 For thermal protector (G1, G2)
A 2

KP
For cooling fan (A, B)

H
KG

C
A φ27

G
2
Direction of B1 B2 U V W G1 G2 A B C
J
cooling fan wind
F F XB E E
Mark for earthing
(grounding) N M
ML
Earth (ground)
terminal (M5) W
Sliding distance Earthing (grounding) Earthing (grounding)
U

X terminal (M4) terminal (M4)

T

Section AA Frame leg viewed

from above

Frame Number 160M, 160L, 180M, 180L Frame Number 200L

SF-V5RU(H) 11KB , 15KB , 18KB , 22KB SF-V5RU(H) 30KB , 37KB , 45KB

Terminal box for cooling fan Connector (for encoder)

Connector (for encoder) MS3102A20-29P Terminal box for cooling fan
MS3102A20-29P
L L
A R A R
KL 140
KA B 110 B D
Main D
90 φ22 KA 110
Exhaust terminal box 1 Main
Suction terminal box
φ22

φ90
Exhaust
Suction
1, 2 A 2 1
KP

2
A

KP
H

1, 2

KG

H
φ56
C
KG

A
G

C
G
Direction of Mark for earthing J
cooling fan wind (grounding) F F XB E E
Earth (ground) Direction of Mark for earthing J
N M
cooling fan wind (grounding) F F XB E E
terminal (M8)
N M
W Sliding distance
Earth (ground) W
U

X
Sliding distance
U

terminal (M12)
T

X
T
Z

S
Z

Main terminal box Terminal box for cooling fan S

Frame leg viewed
Section AA For motor (U, V, W)
from above Section AA Frame leg viewed
For cooling fan (A, B, C)
from above
Earthing
(grounding) A B C
U V W
terminal (M8)
indicates an inserting position of a bolt with hex
Earthing (grounding) head holes for manual opening.
terminal (M4)
B1 B2 G1 G2 Make sure to earth the earth terminal of the frame
installation foot as well as the earth terminal in the
For brake (B1, B2) For thermal protector (G1, G2) terminal box.

Dimensions table (Unit: mm)

SF-V5RU SF-V5RU SF-V5RU SF-V5RU Frame Mass Motor Shaft End Terminal Screw Size
K K1 K3 K4 No. (kg) A B C D E F G H I J KA KD KG KL KP L M ML N X XB Z Q QK R S T U W U,V,W A,B,(C) G1,G2 B1,B2
3 — — — 112M 53 355 135 112 228 95 70 6.5 — — 40 69 27 93 242 290 555 230 242 180 4 70 12 60 45 200 28j6 7 4 8 M6 M4 M4 M4
5 3 — — 132S 70 416 152 132 266 108 70 6.5 — — 40 75 27 117 256 329 655 256 268 180 4 89 12 80 63 239 38k6 8 5 10 M6 M4 M4 M4
7 5 3 — 132M 80 435 171 132 266 108 89 6.5 — — 40 94 27 117 256 329 693 256 268 218 4 89 12 80 63 258 38k6 8 5 10 M6 M4 M4 M4
11 7 5 — 160M 140 522.5 198 160 318 127 105 8 — — 50 105 56 115 330 391 845.5 310 — 254 4 108 14.5 110 90 323 42k6 8 5 12 M8 M4 M4 M4
15 11 7 3 160L 155 544.5 220 160 318 127 127 8 — — 50 127 56 115 330 391 889.5 310 — 298 4 108 14.5 110 90 345 42k6 8 5 12 M8 M4 M4 M4
18 — — — 185
180M 568.5 225.5 180 363 139.5 120.5 8 — — 50 127 56 139 352 428 920 335 — 285 4 121 14.5 110 90 351.5 48k6 9 5.5 14 M8 M4 M4 M4
22 15 11 — 215
— 18 15 5 180L 255 587.5 242.5 180 363 139.5 139.5 8 — — 50 146 56 139 352 428 958 335 — 323 4 121 14.5 110 90 370.5 55m6 10 6 16 M8 M4 M4 M4
30 — — 7 305
200L 644.5 267.5 200 406 159 152.5 11 — — 70 145 90 487 — 546 1070 390 — 361 4 133 18.5 140 110 425.5 60m6 11 7 18 M10 M4 M4 M4
37, 45 22, 30 18, 22 — 330
SPECIFICATIONS

— 37 30 11, 15 225S 395 659 277 225 446 178 143 11 — — 70 145 90 533 — 592 1091 428 — 342 4 149 18.5 140 110 432 65m6 11 7 18 M10 M4 M4 M4

Note) 1. Install the motor on the floor and use it with the shaft horizontal.
2. Leave an enough clearance between the fan suction port and wall to ensure adequate cooling.
Also, check that the ventilation direction of a fan is from the opposite load side to the load side.
3. The size difference of top and bottom of the shaft center height is -0.5
0

4. The 400V class motor has -H at the end of its type name.
5. Since a brake power device is a stand-alone, install it inside the enclosure.
(This device should be arranged at the customer side.)

7
431
Outline dimension drawings

Dedicated motor (SF-V5RU(H)) outline dimension drawings (flange type)

Frame Number 112M, 132S, 132M

SF-V5RUF(H) 3K , 5K , 7K

Connector (for encoder)

MS3102A20-29P
LL
KB LR
Q For cooling fan (A, B)
LG LE KL
QK LN LZ For motor (U, V, W)
Exhaust
For thermal protector (G1, G2)
Section
AA
Suction
LA

IE
B A A B U V W G1 G2

LC
LB
D

B Earthing (grounding)
terminal (M4)
KD A
Direction of
cooling fan wind W
U

Earth (ground) terminal (M5)

T

Mark for earthing (grounding)

S

Section BB

Frame Number 160M, 160L, 180M, 180L Frame Number 200L

SF-V5RUF(H) 11K , 15K , 18K , 22K SF-V5RUF(H) 30K , 37K , 45K

Connector (for encoder) Connector (for encoder)

MS3102A20-29P MS3102A20-29P
LL LL
KB LR KB LR
Q

Q QK KL
LG LE LN LZ
LG LE LN LZ Exhaust
QK KL Section
Exhaust Section
AA
AA Suction

IE
Suction
LA
IE

B A
LA

LC
LB
D

B
LC
LB
D

B
B
KD A KD
Direction of A
cooling fan wind Earth (ground) terminal (M12)
Direction of Mark for earthing (grounding) W
Earth (ground) terminal (M8) W
cooling fan wind

U
Mark for earthing (grounding) With guard wires
U

With guard wires

T

For motor (U, V, W)

S
S Section BB
Section BB
Earthing (grounding)
terminal (M8)

Make sure to earth the earth terminal of the flange section

For cooling fan (A, B, C) For thermal protector (G1, G2) as well as the earth terminal in the terminal box.

Dimensions table (Unit: mm)

SF-V5RU SF-V5RU SF-V5RU SF-V5RU Flange Frame Mass Motor Shaft End Terminal Screw Size
K K1 K3 K4 Number No. (kg) D IE KB KD KL LA LB LC LE LG LL LN LZ LR Q QK S T U W U,V,W A,B,(C) G1,G2
3 — — — FF215 112M 46 228 141 239 27 242 215 180j6 250 4 16 448 4 14.5 60 60 45 28j6 7 4 8 M6 M4 M4
5 3 — — FF265 132S 65 266 156 256 27 256 265 230j6 300 4 20 484 4 14.5 80 80 63 38k6 8 5 10 M6 M4 M4
7 5 3 — FF265 132M 70 266 156 294 27 256 265 230j6 300 4 20 522 4 14.5 80 80 63 38k6 8 5 10 M6 M4 M4
11 7 5 — FF300 160M 110 318 207 318 56 330 300 250j6 350 5 20 625 4 18.5 110 110 90 42k6 8 5 12 M8 M4 M4
15 11 7 3 FF300 160L 125 318 207 362 56 330 300 250j6 350 5 20 669 4 18.5 110 110 90 42k6 8 5 12 M8 M4 M4
18 — — — 160
FF350 180M 363 230 378.5 56 352 350 300j6 400 5 20 690 4 18.5 110 110 90 48k6 9 5.5 14 M8 M4 M4
22 15 11 — 185
— 18 15 5 FF350 180L 225 363 230 416.5 56 352 350 300j6 400 5 20 728 4 18.5 110 110 90 55m6 10 6 16 M8 M4 M4
30 — — 7 270
FF400 200L 406 255 485 90 346 400 350j6 450 5 22 823.5 8 18.5 140 140 110 60m6 11 7 18 M10 M4 M4
37, 45 22, 30 18, 22 — 290

Note) 1. Install the motor on the floor and use it with the shaft horizontal.
For use under the shaft, the protection structure of the cooling fan is IP20.
2. Leave an enough clearance between the fan suction port and wall to ensure adequate cooling.
Also, check that the ventilation direction of a fan is from the opposite load side to the load side.
3. The size difference of top and bottom of the shaft center height is 0
-0.5

4 The 400V class motor has -H at the end of its type name.

432
 Outline dimension drawings

Dedicated motor (SF-V5RU(H)) outline dimension drawings (flange type with brake)

Frame Number 112M, 132S, 132M

SF-V5RUF(H) 3KB , 5KB , 7KB

Connector (for encoder) Terminal box for cooling fan

MS3102A20-29P

LL
KB LR
Q KL
Exhaust LG LE
Main 1
terminal box QK
Suction

φ22
Section A LN LZ
AA

KP
1
2
B LA
D

LC
LB
B A
2
KD
Direction of
cooling fan wind W
Earth (ground) terminal (M5)

U
Mark for earthing (grounding)

T
S

Section BB
Main terminal box Terminal box for cooling fan
For brake (B1, B2)
For motor (U, V, W)
For thermal protector (G1, G2)
For cooling fan (A, B)

B1 B2 U V W G1 G2 A B C

Earthing Earthing
(grounding) (grounding)
terminal (M4) terminal (M4)

Frame Number 160M, 160L

SF-V5RUF(H) 11KB , 15KB

Connector (for encoder)

MS3102A20-29P
Terminal box for cooling fan
LL
KB LR
KL
Main LG LE
Q
φ22

terminal box LN LZ
Exhaust QK 1
Section
AA
KP

Suction
LA

1, 2 A 2
B
LC
LB
D

B
KD A
W
Direction of
U

cooling fan wind

T

Earth (ground) terminal (M8)

Mark for earthing (grounding)
S
Main terminal box Terminal box for cooling fan
For motor (U, V, W) Section BB
For cooling fan (A, B, C)

U V W
Earthing A B C

Earthing
indicates an inserting position of a bolt with hex head holes
(grounding)
terminal (M8) (grounding) for manual opening.
terminal (M4)
B1 B2 G1 G2

Make sure to earth the earth terminal of the flange section

For brake (B1, B2) For thermal protector (G1, G2) as well as the earth terminal in the terminal box.

Dimensions table (Unit: mm)

SF-V5RU SF-V5RU SF-V5RU SF-V5RU Flange Frame Mass Motor Shaft End Terminal Screw Size
K K1 K3 K4 Number No. (kg) D KB KD KL KP LA LB LC LE LG LL LN LZ LR Q QK S T U W U,V,W A,B,(C) B1,B2 G1,G2
3 — — — FF215 112M 58 228 239 27 242 178 215 180j6 250 4 16 525 4 14.5 60 60 45 28j6 7 4 8 M6 M4 M4 M4
5 3 — — FF265 132S 83 266 256 27 256 197 265 230j6 300 4 20 597 4 14.5 80 80 63 38k6 8 5 10 M6 M4 M4 M4
7 5 3 — FF265 132M 88 266 294 27 256 197 265 230j6 300 4 20 635 4 14.5 80 80 63 38k6 8 5 10 M6 M4 M4 M4
11 7 5 — FF300 160M 151 318 318 56 330 231 300 250j6 350 5 20 735.5 4 18.5 110 110 90 42k6 8 5 12 M8 M4 M4 M4
SPECIFICATIONS

15 11 7 3 FF300 160L 167 318 362 56 330 231 300 250j6 350 5 20 779.5 4 18.5 110 110 90 42k6 8 5 12 M8 M4 M4 M4

Note) 1. Install the motor on the floor and use it with the shaft horizontal.
2. Leave an enough clearance between the fan suction port and wall to ensure adequate cooling.
Also, check that the ventilation direction of a fan is from the opposite load side to the load side.
3. The size difference of top and bottom of the shaft center height is -0.5
0

4. The 400V class motor has -H at the end of its type name.
5. Since a brake power device is a stand-alone, install it inside the enclosure.
(This device should be arranged at the customer side.)

7
433
Installation of the heatsink portion
outside the enclosure for use

7.4 Installation of the heatsink portion outside the enclosure

for use
When encasing the inverter in an enclosure, the generated heat amount in an enclosure can be greatly reduced by
installing the heatsink portion of the inverter outside the enclosure. When installing the inverter in a compact
enclosure, etc., this installation method is recommended.

7.4.1 Protrusion of heatsink

(1) Panel cutting
Cut the panel of the enclosure according to the inverter capacity.
• FR-A721-5.5K to 55K, FR-A741-5.5K to 55K
4-C screw
H3

Inverter model W W1 H H1 H2 H3 C
FR-A721-5.5K, 7.5K
240 190 454 434 12 8 M8
FR-A741-5.5K, 7.5K
FR-A721-11K, 15K
H1

290 220 575 548 17 10 M8

FR-A741-11K, 15K
FR-A721-18.5K, 22K 376 290 575 546 17 12 M10
FR-A741-18.5K, 22K 346 260 575 546 17 12 M10
FR-A721-30K
436 350 675 646 17 12 M10
FR-A741-30K
FR-A721-37K, 45K
456 370 670 641 17 12 M12
FR-A741-37K, 45K
H2

W1 FR-A721-55K
586 480 870 841 17 12 M12
W FR-A741-55K

Unit: mm

434
 Installation of the heatsink portion
outside the enclosure for use

(2) Shift and removal of a rear side installation frame

One installation frame is attached to each of the upper and lower

parts of the inverter. Change the position of the rear side Shift
installation frame on the upper and lower sides of the inverter to
Upper
the front side as shown on the right. When changing the installation
installation frames, make sure that the installation orientation is frame
correct.

Lower
installation
Shift frame

(3) Installation of the inverter

Push the inverter heatsink portion outside the enclosure and fix the enclosure and inverter with upper and lower
installation frame.

Enclosure
Inside the
enclosure Exhausted air

Inverter Inverter model D1

FR-A721-5.5K, 7.5K
100
FR-A741-5.5K, 7.5K
Installation
frame FR-A721-11K, 15K
125
FR-A741-11K, 15K
FR-A721-18.5K, 22K
130
FR-A741-18.5K, 22K
FR-A721-30K
145
FR-A741-30K
FR-A721-37K, 45K
163
FR-A741-37K, 45K
Cooling
wind FR-A721-55K
Dimension of 190
D1 the outside of FR-A741-55K
the enclosure
(Unit: mm)

CAUTION
· Having a cooling fan, the cooling section which comes out of the enclosure can not be used in the environment of water
drops, oil, mist, dust, etc.
· Be careful not to drop screws, dust etc. into the inverter and cooling fan section.
SPECIFICATIONS

7
435
MEMO

436
 APPENDICES

This chapter provides the "APPENDICES" of this product.

Always read the instructions before using the equipment.

437
Appendix 1 Main differences and compatibilities with the FR-A700 series
Item FR-A700 FR-A701
200V class ......0.4K to 90K 200V class ..... 5.5K to 55K
Model configuration
400V class ......0.4K to 500K 400V class ..... 5.5K to 55K
Regenerative braking 5.5/7.5K ..........100%torque 2%ED 100% torque/continuous
torque 11K to 55K ......20%torque continuous 150% torque 60s
Built-in EMC filter With Without
Pr. 30 Regenerative function selection, Pr. 70 Special
Deleted
regenerative brake duty
Changed/cleared Pr. 872 Input phase loss protection selection The initial value is changed to "1" (with input phase
functions Initial value "0" (without input phase protection) failure protection)
Protective functions Deleted
E.BE E.4, E.10, E.8, E.15 added
· AC reactor (FR-HAL)
· DC reactor (FR-HEL) Not available
· High-duty brake resistor (FR-ABR) (AC reactor (FR-HAL) is built-in)
Stand-alone option * Note that an AC reactor (FR-HAL) should be used only
· Power regeneration common converter (FR-CV)
when a thyristor load exists in the same power supply
· High power factor converter (FR-HC) system and protective function E.4 and E.10 activate.
· Power regeneration converter (FR-RC)
Outline dimension
Not compatible
Installation size

438
 Appendix 2 Control mode-based parameter (function) correspondence
table and instruction code list
*1 These instruction codes are used for parameter read and write by using Mitsubishi inverter protocol with the RS-485 communication.
(Refer to page 310 for RS-485 communication)
*2 Validity and invalidity according to operation mode are as follows:
:Usable parameter
× :Unusable parameter
Δ :Parameters available only during position control set by parameter
*3 " " indicates valid and "×" indicates invalid of "parameter copy", "parameter clear", and "all parameter clear".
*4 Parameters can be used with conditions. Refer to page 185 for details.
*5 When a communication option is installed, parameter clear (lock release) during password lock (Pr. 297 ≠ 9999) can be performed only from the
communication option.
*6 These parameters are communication parameters that are not cleared when parameter clear (all clear) is executed from RS-485 communication.
(Refer to page 305 for RS-485 communication)
Symbols in the table indicate parameters which function when an option is mounted.
........ FR-A7AX, ......... FR-A7AY, ......... FR-A7AR, ........ FR-A7AP, ......... FR-A7AL , FR-A7AZ,
........ FR-A7NC, ......... FR-A7ND, ........ FR-A7NL, ......... FR-A7NP, ......... FR-A7NS
....... Specifications differ according to the date assembled. Refer to page 456 to check the SERIAL number.

Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control
Extended

Name magnetic vector control

Write
Read

V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
0 Torque boost 00 80 0 × × × × × ×
1 Maximum frequency 01 81 0
2 Minimum frequency 02 82 0 ×
3 Base frequency 03 83 0 × × × × × ×
4 Multi-speed setting (high speed) 04 84 0 Δ
5 Multi-speed setting (middle speed) 05 85 0 Δ
6 Multi-speed setting (low speed) 06 86 0 Δ
7 Acceleration time 07 87 0 Δ
8 Deceleration time 08 88 0 Δ
9 Electronic thermal O/L relay 09 89 0
DC injection brake operation
10 0A 8A 0 ×
frequency
DC injection brake operation
11 0B 8B 0 ×
time
DC injection brake operation
12 0C 8C 0 × × × *4 *4
voltage
13 Starting frequency 0D 8D 0 ×
14 Load pattern selection 0E 8E 0 × × × × × ×
15 Jog frequency 0F 8F 0 ×
Jog acceleration/
16 10 90 0 ×
deceleration time
17 MRS input selection 11 91 0
High speed maximum
18 12 92 0 × × × × ×
frequency
19 Base frequency voltage 13 93 0 × × × × × ×
Acceleration/deceleration
20 14 94 0 Δ
reference frequency
Acceleration/deceleration
21 15 95 0 Δ
time increments
Stall prevention operation
22 16 96 0 × ×
level (Torque limit level )
Stall prevention operation
23 level compensation factor at 17 97 0 × × × × ×
double speed
24 Multi-speed setting (speed 4) 18 98 0 Δ
25 Multi-speed setting (speed 5) 19 99 0 Δ
26 Multi-speed setting (speed 6) 1A 9A 0 Δ

439
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
27 Multi-speed setting (speed 7) 1B 9B 0 Δ
Multi-speed input
28 1C 9C 0 ×
compensation selection
Acceleration/deceleration
29 1D 9D 0 ×
pattern selection
31 Frequency jump 1A 1F 9F 0 ×
32 Frequency jump 1B 20 A0 0 ×
33 Frequency jump 2A 21 A1 0 ×
34 Frequency jump 2B 22 A2 0 ×
35 Frequency jump 3A 23 A3 0 ×
36 Frequency jump 3B 24 A4 0 ×
37 Speed display 25 A5 0
41 Up-to-frequency sensitivity 29 A9 0 × × ×
42 Output frequency detection 2A AA 0
Output frequency detection
43 2B AB 0
for reverse rotation
Second acceleration/
44 2C AC 0 Δ
deceleration time
45 Second deceleration time 2D AD 0 Δ
46 Second torque boost 2E AE 0 × × × × × ×
47 Second V/F (base frequency) 2F AF 0 × × × × × ×
Second stall prevention
48 30 B0 0 × × × × ×
operation current
Second stall prevention
49 31 B1 0 × × × × ×
operation frequency
Second output frequency
50 32 B2 0
detection
Second electronic thermal
51 33 B3 0
O/L relay
DU/PU main display data
52 34 B4 0
selection
FM terminal function
54 36 B6 0
selection
Frequency monitoring
55 37 B7 0
reference
Current monitoring
56 38 B8 0
reference
57 Restart coasting time 39 B9 0 ×
58 Restart cushion time 3A BA 0 × × × × ×
59 Remote function selection 3B BB 0 ×
Energy saving control
60 3C BC 0 × × × × × ×
selection
61 Reference current 3D BD 0 × × ×
Reference value at
62 3E BE 0 × × ×
acceleration
Reference value at
63 3F BF 0 × × ×
dcceleration
Starting frequency for
64 40 C0 0 × × × × × ×
elevator mode
65 Retry selection 41 C1 0 ×
Stall prevention operation
66 42 C2 0 × × × × ×
reduction starting frequency
Number of retries at fault
67 43 C3 0 ×
occurrence
68 Retry waiting time 44 C4 0 ×

440
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
69 Retry count display erase 45 C5 0 ×
71 Applied motor 47 C7 0

72 PWM frequency selection 48 C8 0

73 Analog input selection 49 C9 0 ×

74 Input filter time constant 4A CA 0 ×
Reset selection/
75 disconnected PU detection/ 4B CB 0 × ×
PU stop selection
76 Alarm code output selection 4C CC 0

77 * Parameter write selection 4D CD 0

Reverse rotation prevention
78 4E CE 0
selection
79 * Operation mode selection 4F CF 0

80 Motor capacity 50 D0 0 ×
81 Number of motor poles 51 D1 0 ×
82 Motor excitation current 52 D2 0 × ×
83 Rated motor voltage 53 D3 0 ×
84 Rated motor frequency 54 D4 0 ×
Speed control gain
89 59 D9 0 × × × × × × ×
(magnetic flux vector)
90 Motor constant (R1) 5A DA 0 × ×
91 Motor constant (R2) 5B DB 0 × ×
92 Motor constant (L1) 5C DC 0 × ×
93 Motor constant (L2) 5D DD 0 × ×
94 Motor constant (X) 5E DE 0 × ×
95 Online auto tuning selection 5F DF 0 ×
96 Auto tuning setting/status 60 E0 0 × ×
100 V/F1(first frequency) 00 80 1 × × × × × ×
101 V/F1(first frequency voltage) 01 81 1 × × × × × ×
102 V/F2(second frequency) 02 82 1 × × × × × ×
V/F2(second frequency
103 03 83 1 × × × × × ×
voltage)
104 V/F3(third frequency) 04 84 1 × × × × × ×
105 V/F3(third frequency voltage) 05 85 1 × × × × × ×
106 V/F4(fourth frequency) 06 86 1 × × × × × ×
V/F4(fourth frequency
107 07 87 1 × × × × × ×
voltage)
108 V/F5(fifth frequency) 08 88 1 × × × × × ×
109 V/F5(fifth frequency voltage) 09 89 1 × × × × × ×
Third acceleration/
110 0A 8A 1 Δ
deceleration time
111 Third deceleration time 0B 8B 1 Δ
112 Third torque boost 0C 8C 1 × × × × × ×
113 Third V/F (base frequency) 0D 8D 1 × × × × × ×
Third stall prevention
114 0E 8E 1 × × × × ×
operation current
Thrid stall prevention
115 0F 8F 1 × × × × ×
operation frequency
* Read and write from communication with PU connector only is enabled.

441
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Third output frequency
116 10 90 1
detection
PU communication station
117 11 91 1 *6 *6
number
118 PU communication speed 12 92 1 *6 *6

PU communication stop bit

119 13 93 1 *6 *6
length
PU communication parity
120 14 94 1 *6 *6
check
Number of PU
121 15 95 1 *6 *6
communication retries
PU communication check
122 16 96 1 *6 *6
time interval
PU communication waiting
123 17 97 1 *6 *6
time setting
PU communication CR/LF
124 18 98 1 *6 *6
presence/absence selection
Terminal 2 frequency setting
125 19 99 1 × ×
gain frequency
Terminal 4 frequency setting
126 1A 9A 1 × ×
gain frequency
PID control automatic
127 1B 9B 1 × × ×
switchover frequency
128 PID action selection 1C 9C 1 × × ×
129 PID proportional band 1D 9D 1 × × ×
130 PID integral time 1E 9E 1 × × ×
131 PID upper limit 1F 9F 1 × × ×
132 PID lower limit 20 A0 1 × × ×
133 PID action set point 21 A1 1 × × ×
134 PID differential time 22 A2 1 × × ×
Electronic bypass sequence
135 23 A3 1 × × ×
selection
MC switchover interlock
136 24 A4 1 × × ×
time
137 Start waiting time 25 A5 1 × × ×
138 Bypass selection at a fault 26 A6 1 × × ×
Automatic switchover
139 frequency from inverter to 27 A7 1 × × ×
bypass operation
Backlash acceleration
140 28 A8 1 ×
stopping frequency
Backlash acceleration
141 29 A9 1 ×
stopping time
Backlash deceleration
142 2A AA 1 ×
stopping frequency
Backlash deceleration
143 2B AB 1 ×
stopping time
144 Speed setting switchover 2C AC 1
PU display language
145 2D AD 1 × ×
selection
Stall prevention level at 0V
148 30 B0 1 × × × × ×
input
Stall prevention level at 10V
149 31 B1 1 × × × × ×
input
Output current detection
150 32 B2 1
level

442
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Output current detection
151 33 B3 1
signal delay time
152 Zero current detection level 34 B4 1
153 Zero current detection time 35 B5 1
Voltage reduction selection
154 during stall prevention 36 B6 1 × × × × ×
operation
RT signal function validity
155 37 B7 1 × × ×
condition selection
Stall prevention operation
156 38 B8 1 × × × × ×
selection
157 OL signal output timer 39 B9 1
AM terminal function
158 3A BA 1
selection
Automatic switchover
159 frequency range from 3B BB 1 × × ×
bypass to inverter operation
160 User group read selection 00 80 2
Frequency setting/key lock
161 01 81 2 ×
operation selection
Automatic restart after
162 instantaneous power failure 02 82 2 ×
selection
163 First cushion time for restart 03 83 2 × × × × ×
First cushion voltage for
164 04 84 2 × × × × ×
restart
Stall prevention operation
165 05 85 2 × × × × ×
level for restart
Output current detection
166 06 86 2
signal retention time
Output current detection
167 07 87 2
operation selection
168
Parameter for manufacturer setting. Do not set.
169
170 Watt-hour meter clear 0A 8A 2 ×
171 Operation hour meter clear 0B 8B 2 × × ×
User group registered
172 0C 8C 2 × ×
display/batch clear
173 User group registration 0D 8D 2 × × ×
174 User group clear 0E 8E 2 × × ×
STF terminal function
178 12 92 2 ×
selection
STR terminal function
179 13 93 2 ×
selection
RL terminal function
180 14 94 2 ×
selection
RM terminal function
181 15 95 2 ×
selection
RH terminal function
182 16 96 2 ×
selection
RT terminal function
183 17 97 2 ×
selection
AU terminal function
184 18 98 2 ×
selection
JOG terminal function
185 19 99 2 ×
selection

443
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
CS terminal function
186 1A 9A 2 ×
selection
MRS terminal function
187 1B 9B 2 ×
selection
STOP terminal function
188 1C 9C 2 ×
selection
RES terminal function
189 1D 9D 2 ×
selection
RUN terminal function
190 1E 9E 2 ×
selection
SU terminal function
191 1F 9F 2 ×
selection
IPF terminal function
192 20 A0 2 ×
selection
OL terminal function
193 21 A1 2 ×
selection
FU terminal function
194 22 A2 2 ×
selection
ABC1 terminal function
195 23 A3 2 ×
selection
ABC2 terminal function
196 24 A4 2 ×
selection
232 Multi-speed setting (speed 8) 28 A8 2 Δ
233 Multi-speed setting (speed 9) 29 A9 2 Δ
234 Multi-speed setting (speed 10) 2A AA 2 Δ
235 Multi-speed setting (speed 11) 2B AB 2 Δ
236 Multi-speed setting (speed 12) 2C AC 2 Δ
237 Multi-speed setting (speed 13) 2D AD 2 Δ
238 Multi-speed setting (speed 14) 2E AE 2 Δ
239 Multi-speed setting (speed 15) 2F AF 2 Δ
Soft-PWM operation
240 30 B0 2
selection
Analog input display unit
241 31 B1 2
switchover
Terminal 1 added
242 compensation amount 32 B2 2 ×
(terminal 2)
Terminal 1 added
243 compensation amount 33 B3 2 ×
(terminal 4)
Cooling fan operation
244 34 B4 2
selection
245 Rated slip 35 B5 2 × × × × × ×
Slip compensation time
246 36 B6 2 × × × × × ×
constant
Constant-power region slip
247 37 B7 2 × × × × × ×
compensation selection
250 Stop selection 3A BA 2 ×
Output phase loss
251 3B BB 2
protection selection
252 Override bias 3C BC 2 ×
253 Override gain 3D BD 2 ×
255 Life alarm status display 3F BF 2 × × ×
Inrush current limit circuit life
256 40 C0 2 × × ×
display

444
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Control circuit capacitor life
257 41 C1 2 × × ×
display
Main circuit capacitor life
258 42 C2 2 × × ×
display
Main circuit capacitor life
259 43 C3 2
measuring
261 Power failure stop selection 45 C5 2 ×
Subtracted frequency at
262 46 C6 2 ×
deceleration start
Subtraction starting
263 47 C7 2 ×
frequency
Power-failure deceleration
264 48 C8 2 ×
time 1
Power-failure deceleration
265 49 C9 2 ×
time 2
Power failure deceleration
266 4A CA 2 ×
time switchover frequency
267 Terminal 4 input selection 4B CB 2 ×
Monitor decimal digits
268 4C CC 2
selection
269 Parameter for manufacturer setting. Do not set.
Stop-on contact/load torque
270 high-speed frequency 4E CE 2 × × ×
control selection
High-speed setting
271 4F CF 2 × × ×
maximum current
Middle-speed setting
272 50 D0 2 × × ×
minimum current
273 Current averaging range 51 D1 2 × × ×
Current averaging filter time
274 52 D2 2 × × ×
constant
Stop-on contact excitation
275 current low-speed 53 D3 2 × × × × × ×
multiplying factor
PWM carrier frequency at
276 54 D4 2 × × × × × ×
stop-on contact
278 Brake opening frequency 56 D6 2 × × × ×
279 Brake opening current 57 D7 2 × × × ×
Brake opening current
280 58 D8 2 × × × ×
detection time
281 Brake operation time at start 59 D9 2 × × × ×
282 Brake operation frequency 5A DA 2 × × × ×
283 Brake operation time at stop 5B DB 2 × × × ×
Deceleration detection
284 5C DC 2 × × × ×
function selection
Overspeed detection
285 frequency (Speed deviation 5D DD 2 × × ×
excess detection frequency)
286 Droop gain 5E DE 2 × × × ×
287 Droop filter time constant 5F DF 2 × × × ×
Droop function activation
288 60 E0 2 × × × × ×
selection
291 Pulse train I/O selection 63 E3 2 × ×
Automatic acceleration/
292 64 E4 2 × × ×
deceleration

445
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Acceleration/deceleration
293 time individual calculation 65 E5 2 × × ×
selection
294 UV avoidance voltage gain 66 E6 2 ×
296 Password lock level 68 E8 2 ×
297 Password lock/unlock 69 E9 2 *5

Rotation direction detection

299 6B EB 2 × × × ×
selection at restarting
300 BCD input bias 00 80 3 ×
301 BCD input gain 01 81 3 ×
302 BIN input bias 02 82 3 ×
303 BIN input gain 03 83 3 ×
Digital input and analog
304 input compensation enable/ 04 84 3 ×
disable selection
Read timing operation
305 05 85 3 ×
selection
Analog output signal
306 06 86 3
selection
Setting for zero analog
307 07 87 3
output
Setting for maximum analog
308 08 88 3
output
Analog output signal
309 voltage/current 09 89 3
switchover
Analog meter voltage output
310 0A 8A 3
selection
Setting for zero analog
311 0B 8B 3
meter voltage output
Setting for maximum analog
312 0C 8C 3
meter voltage output
DO0 output
313 0D 8D 3
selection
DO1 output
314 0E 8E 3
selection
DO2 output
315 0F 8F 3
selection
316 DO3 output selection 10 90 3

317 DO4 output selection 11 91 3

318 DO5 output selection 12 92 3

319 DO6 output selection 13 93 3

320 RA1 output selection 14 94 3

321 RA2 output selection 15 95 3

322 RA3 output selection 16 96 3

323 AM0 0V adjustment 17 97 3 ×

324 AM1 0mA adjustment 18 98 3 ×
Digital input increments
329 1D 9D 3 × ×
selection
RS-485 communication
331 1F 9F 3 *6 *6
station

446
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
RS-485 communication
332 20 A0 3 *6 *6
speed
RS-485 communication stop
333 21 A1 3 *6 *6
bit length
RS-485 communication
334 22 A2 3 *6 *6
parity check selection
RS-485 communication
335 23 A3 3 *6 *6
retry count
RS-485 communication
336 24 A4 3 *6 *6
check time interval
RS-485 communication
337 25 A5 3 *6 *6
waiting time setting
Communication operation
338 26 A6 3 *6 *6
command source
Communication speed
339 27 A7 3 *6 *6
command source
Communication startup
340 28 A8 3 *6 *6
mode selection
RS-485 communication CR/
341 29 A9 3 *6 *6
LF selection
Communication EEPROM
342 2A AA 3
write selection
343 Communication error count 2B AB 3 × × ×
345 DeviceNet address 2D AD 3 *6 *6

346 DeviceNet baud rate 2E AE 3 *6 *6

Communication reset
349 31 B1 3 *6 *6
selection
Stop position command
350 32 B2 3 × × × ×
selection
351 Orientation speed 33 B3 3 × × × ×
352 Creep speed 34 B4 3 × × × ×
Creep switchover position
353 35 B5 3 × × × ×

Position loop switchover

354 36 B6 3 × × × ×
position
DC injection brake start
355 37 B7 3 × × × ×
position
Internal stop position
356 38 B8 3 × × × ×
command
Orientation in-position
357 39 B9 3 × × × ×
zone
Servo torque
358 3A BA 3 × × × ×
selection
Encoder rotation direction
359 3B BB 3 × ×

360 16 bit data selection 3C BC 3 × × × ×

361 Position shift 3D BD 3 × × × ×
Orientation position loop
362 3E BE 3 × × × ×
gain
Completion signal output
363 3F BF 3 × × × ×
delay time
Encoder stop check time
364 40 C0 3 × × × ×

365 Orientation limit 41 C1 3 × × × ×

447
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
366 Recheck time 42 C2 3 × × × ×
Speed feedback
367 43 C3 3 × × × ×
range
368 Feedback gain 44 C4 3 × × × × ×
Number of encoder pulses
369 45 C5 3 × ×

374 Overspeed detection level 4A CA 3 × ×

Encoder signal loss
376 detection enable/disable 4C CC 3 × ×
selection
SSCNET III rotation
379 4F CF 3 × × × ×
direction selection
380 Acceleration S-pattern 1 50 D0 3 ×
381 Deceleration S-pattern 1 51 D1 3 ×
382 Acceleration S-pattern 2 52 D2 3 ×
383 Deceleration S-pattern 2 53 D3 3 ×
Input pulse division scaling
384 54 D4 3 ×
factor
385 Frequency for 0 input pulse 55 D5 3 ×
Frequency for maximum
386 56 D6 3 ×
input pulse
Initial communication delay
387 57 D7 3
time
Send time interval at heart
388 58 D8 3
beat
Minimum sending time at
389 59 D9 3
heart beat
% setting reference
390 5A DA 3
frequency
Receive time interval at
391 5B DB 3
heart beat
Event driven detection
392 5C DC 3
width
393 Orientation selection 5D DD 3 × × × × × ×
Orientation speed gain (P
396 60 E0 3 × × × × × ×
term)
Orientation speed integral
397 61 E1 3 × × × × × ×
time
Orientation speed gain (D
398 62 E2 3 × × × × × ×
term)
Orientation deceleration
399 63 E3 3 × × × × × ×
ratio
High resolution analog input
406 06 86 4 ×
selection
Motor temperature detection
407 07 87 4
filter
Motor thermistor
408 08 88 4
selection
Encoder pulse division
413 0D 8D 4
ratio
Position command source
419 13 93 4 × × × × × ×
selection

448
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Command pulse scaling
420 14 94 4 × × × × × ×
factor numerator
Command pulse scaling
421 15 95 4 × × × × × ×
factor denominator
422 Position loop gain 16 96 4 × × × × × ×
Position feed forward gain
423 17 97 4 × × × × × ×

Position command
424 acceleration/deceleration 18 98 4 × × × × × ×
time constant
Position feed forward
425 19 99 4 × × × × × ×
command filter
426 In-position width 1A 9A 4 × × × × × ×
427 Excessive level error 1B 9B 4 × × × × × ×
Command pulse selection
428 1C 9C 4 × × × × × ×

429 Clear signal selection 1D 9D 4 × × × × × ×

430 Pulse monitor selection 1E 9E 4 × × × × × ×
Pulse train torque command
432 20 A0 4 × × × × ×
bias
Pulse train torque command
433 21 A1 4 × × × × ×
gain
Digital torque command
447 2F AF 4 × × × × ×
bias
Digital torque command
448 30 B0 4 × × × × ×
gain
SSCNET III input filter
449 31 B1 4 × × × ×
setting
450 Second applied motor 32 B2 4 × × ×
Second motor control
451 33 B3 4 × × ×
method selection
453 Second motor capacity 35 B5 4 × × × ×
Number of second motor
454 36 B6 4 × × × ×
poles
Second motor excitation
455 37 B7 4 × × × × ×
current
456 Rated second motor voltage 38 B8 4 × × × ×
Rated second motor
457 39 B9 4 × × × ×
frequency
458 Second motor constant (R1) 3A BA 4 × × × × ×
459 Second motor constant (R2) 3B BB 4 × × × × ×
460 Second motor constant (L1) 3C BC 4 × × × × ×
461 Second motor constant (L2) 3D BD 4 × × × × ×
462 Second motor constant (X) 3E BE 4 × × × × ×
Second motor auto tuning
463 3F BF 4 × × × × ×
setting/status
Digital position control
464 sudden stop deceleration 40 C0 4 × × × × × ×
time
First position feed amount
465 41 C1 4 × × × × × ×
lower 4 digits
First position feed amount
466 42 C2 4 × × × × × ×
upper 4 digits

449
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Second position feed
467 amount lower 4 43 C3 4 × × × × × ×
digits
Second position feed
468 amount upper 4 44 C4 4 × × × × × ×
digits
Third position feed amount
469 45 C5 4 × × × × × ×
lower 4 digits
Third position feed amount
470 46 C6 4 × × × × × ×
upper 4 digits
Fourth position feed amount
471 47 C7 4 × × × × × ×
lower 4 digits
Fourth position feed amount
472 48 C8 4 × × × × × ×
upper 4 digits
Fifth position feed amount
473 49 C9 4 × × × × × ×
lower 4 digits
Fifth position feed amount
474 4A CA 4 × × × × × ×
upper 4 digits
Sixth position feed amount
475 4B CB 4 × × × × × ×
lower 4 digits
Sixth position feed amount
476 4C CC 4 × × × × × ×
upper 4 digits
Seventh position feed
477 4D CD 4 × × × × × ×
amount lower 4 digits
Seventh position feed
478 4E CE 4 × × × × × ×
amount upper 4 digits
Eighth position feed amount
479 4F CF 4 × × × × × ×
lower 4 digits
Eighth position feed amount
480 50 D0 4 × × × × × ×
upper 4 digits
Ninth position feed amount
481 51 D1 4 × × × × × ×
lower 4 digits
Ninth position feed amount
482 52 D2 4 × × × × × ×
upper 4 digits
Tenth position feed amount
483 53 D3 4 × × × × × ×
lower 4 digits
Tenth position feed amount
484 54 D4 4 × × × × × ×
upper 4 digits
Eleventh position feed
485 55 D5 4 × × × × × ×
amount lower 4 digits
Eleventh position feed
486 56 D6 4 × × × × × ×
amount upper 4 digits
Twelfth position feed amount
487 57 D7 4 × × × × × ×
lower 4 digits
Twelfth position feed amount
488 58 D8 4 × × × × × ×
upper 4 digits
Thirteenth position feed
489 59 D9 4 × × × × × ×
amount lower 4 digits
Thirteenth position feed
490 5A DA 4 × × × × × ×
amount upper 4 digits
Fourteenth position feed
491 5B DB 4 × × × × × ×
amount lower 4 digits
Fourteenth position feed
492 5C DC 4 × × × × × ×
amount upper 4 digits

450
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Fifteenth position feed
493 5D DD 4 × × × × × ×
amount lower 4 digits
Fifteenth position feed
494 5E DE 4 × × × × × ×
amount upper 4 digits
495 Remote output selection 5F DF 4
496 Remote output data 1 60 E0 4 × × ×
497 Remote output data 2 61 E1 4 × × ×
SSCNET III operation
499 63 E3 4 × × × ×
selection
Communication error
500 execution waiting time 00 80 5

Communication error
501 occurrence count display 01 81 5 ×

Stop mode selection at

502 communication error 02 82 5

503 Maintenance timer 03 83 5 × × ×

Maintenance timer alarm
504 04 84 5 ×
output set time
505 Speed setting reference 05 85 5
S-pattern time at a start of
516 10 90 5 ×
acceleration
S-pattern time at a
517 11 91 5 ×
completion of acceleration
S-pattern time at a start of
518 12 92 5 ×
deceleration
S-pattern time at a
519 13 93 5 ×
completion of deceleration
Modbus-RTU
539 communication check time 27 A7 5 *6 *6

interval
Frequency command sign
541 29 A9 5 × × × *6 *6
selection (CC-Link)
Communication station
542 2A AA 5 *6 *6
number (CC-Link)
543 Baud rate (CC-Link) 2B AB 5 *6 *6

CC-Link extended
544 2C AC 5 *6 *6
setting
USB communication station
547 2F AF 5 *6 *6
number
USB communication check
548 30 B0 5 *6 *6
time interval
549 Protocol selection 31 B1 5 *6 *6

NET mode operation

550 32 B2 5 *6 *6
command source selection
PU mode operation
551 33 B3 5 *6 *6
command source selection
555 Current average time 37 B7 5
556 Data output mask time 38 B8 5
Current average value
557 monitor signal output 39 B9 5
reference current

451
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
Energization time carrying-
563 3F BF 5 × × ×
over times
Operating time carrying-
564 40 C0 5 × × ×
over times
Second motor speed control
569 45 C5 5 × × × × × × ×
gain
571 Holding time at a start 47 C7 5 ×
Second motor online auto
574 4A CA 5 × × × ×
tuning
Output interruption detection
575 4B CB 5 × × ×
time
Output interruption detection
576 4C CC 5 × × ×
level
Output interruption cancel
577 4D CD 5 × × ×
level
Acceleration time at a
611 0B 8B 6 × × ×
restart
Regeneration avoidance
665 41 C1 6 × × ×
frequency gain
Tuning data increments
684 54 D4 6 ×
switchover
800 Control method selection 00 80 8
802 Pre-excitation selection 02 82 8 × × × × × ×
Constant power range
803 torque characteristic 03 83 8 × ×
selection
Torque command source
804 04 84 8 × × × × ×
selection
Torque command value
805 05 85 8 × × × × × ×
(RAM)
Torque command value
806 06 86 8 × × × × ×
(RAM,EEPROM)
807 Speed limit selection 07 87 8 × × × × ×
808 Forward rotation speed limit 08 88 8 × × × × ×
809 Reverse rotation speed limit 09 89 8 × × × × ×
Torque limit input method
810 0A 8A 8 × × × ×
selection
811 Set resolution switchover 0B 8B 8
Torque limit level
812 0C 8C 8 × × × ×
(regeneration)
813 Torque limit level (3rd quadrant) 0D 8D 8 × × × ×
814 Torque limit level (4th quadrant) 0E 8E 8 × × × ×
815 Torque limit level 2 0F 8F 8 × × × ×
Torque limit level during
816 10 90 8 × × × ×
acceleration
Torque limit level during
817 11 91 8 × × × ×
deceleration
Easy gain tuning response
818 12 92 8 × × × ×
level setting
819 Easy gain tuning selection 13 93 8 × × × × ×
820 Speed control P gain 1 14 94 8 × × × ×
821 Speed control integral time 1 15 95 8 × × × ×
822 Speed setting filter 1 16 96 8 × × ×
823 Speed detection filter 1 17 97 8 × × × ×
824 Torque control P gain 1 18 98 8 × ×

452
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
825 Torque control integral time 1 19 99 8 × ×
826 Torque setting filter 1 1A 9A 8 × ×
827 Torque detection filter 1 1B 9B 8 × ×
828 Model speed control gain 1C 9C 8 × × × ×
Number of machine end
829 1D 9D 8 × × × ×
encoder pulses
830 Speed control P gain 2 1E 9E 8 × × × ×
831 Speed control integral time 2 1F 9F 8 × × × ×
832 Speed setting filter2 20 A0 8 × × ×
833 Speed detection filter 2 21 A1 8 × × × × ×
834 Torque control P gain 2 22 A2 8 × ×
835 Torque control integral time 2 23 A3 8 × ×
836 Torque setting filter2 24 A4 8 × ×
837 Torque detection filter 2 25 A5 8 × ×
DA1 terminal function
838 26 A6 8
selection
839 DA1 output filter 27 A7 8

840 Torque bias selection 28 A8 8 × × × × × ×

841 Torque bias 1 29 A9 8 × × × × × ×
842 Torque bias 2 2A AA 8 × × × × × ×
843 Torque bias 3 2B AB 8 × × × × × ×
844 Torque bias filter 2C AC 8 × × × × × ×
Torque bias operation time
845 2D AD 8 × × × × × ×

Torque bias balance

846 2E AE 8 × × × × × ×
compensation
Fall-time torque bias
847 2F AF 8 × × × × × ×
terminal 1 bias
Fall-time torque bias
848 30 B0 8 × × × × × ×
terminal 1 gain
Analog input off set
849 31 B1 8
adjustment
850 Control operation selection 32 B2 8 × × × × ×
853 Speed deviation time 35 B5 8 × × × × × ×
854 Excitation ratio 36 B6 8 × ×
857 DA1-0V adjustment 39 B9 8 ×
Terminal 4 function
858 3A BA 8 ×
assignment
859 Torque current 3B BB 8 × ×
Second motor torque
860 3C BC 8 × × × × ×
current
862 Notch filter time constant 3E BE 8 × × × ×
863 Notch filter depth 3F BF 8 × × × ×
864 Torque detection 40 C0 8 × ×
865 Low speed detection 41 C1 8 × ×
866 Torque monitoring reference 42 C2 8 ×
867 AM output filter 43 C3 8
Terminal 1 function
868 44 C4 8 ×
assignment
Input phase failure
872 48 C8 8
protection selection
873 Speed limit 49 C9 8 × × × × × ×

453
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
874 OLT level setting 4A CA 8 × × × ×
875 Fault definition 4B CB 8 ×
Speed feed forward control/
877 model adaptive speed 4D CD 8 × × × ×
control selection
878 Speed feed forward filter 4E CE 8 × × × ×
Speed feed forward torque
879 4F CF 8 × × × ×
limit
880 Load inertia ratio 50 D0 8 × × × × ×
881 Speed feed forward gain 51 D1 8 × × × ×
Regeneration avoidance
882 52 D2 8 × × ×
operation selection
Regeneration avoidance
883 53 D3 8 × × ×
operation level
Regeneration avoidance at
884 deceleration detection 54 D4 8 × × ×
sensitivity
Regeneration avoidance
885 compensation frequency 55 D5 8 × × ×
limit value
Regeneration avoidance
886 56 D6 8 × × ×
voltage gain
888 Free parameter 1 58 D8 8 × ×
889 Free parameter 2 59 D9 8 × ×
Cumulative power monitor
891 5B DB 8
digit shifted times
892 Load factor 5C DC 8
Energy saving monitor
893 5D DD 8
reference (motor capacity)
Control selection during
894 commercial power supply 5E DE 8
operation
Power saving rate reference
895 5F DF 8
value
896 Power unit cost 60 E0 8
Power saving monitor
897 61 E1 8
average time
Power saving cumulative
898 62 E2 8 ×
monitor clear
Operation time rate
899 63 E3 8
(estimated value)
C0
FM terminal calibration 5C DC 1 ×
(900)
C1
AM terminal calibration 5D DD 1 ×
(901)
C2 Terminal 2 frequency setting
5E DE 1 ×
(902) bias frequency
C3 Terminal 2 frequency setting
5E DE 1 ×
(902) bias
125 Terminal 2 frequency setting
5F DF 1 ×
(903) gain frequency
C4 Terminal 2 frequency setting
5F DF 1 ×
(903) gain
C5 Terminal 4 frequency setting
60 E0 1 ×
(904) bias frequency

454
 Instruction

All Parameter Clear *3

Control Mode-based Correspondence Table *2

*3

Parameter Clear *3
Code * 1

Parameter Copy
Parameter

Advanced Real sensorless

Vector control

Extended
Name magnetic vector control

Write
Read
V/F
flux

control

control
Torque
Speed
Control Speed Torque Position
vector
control control control
control
C6 Terminal 4 frequency setting
60 E0 1 ×
(904) bias
126 Terminal 4 frequency setting
61 E1 1 ×
(905) gain frequency
C7 Terminal 4 frequency setting
61 E1 1 ×
(905) gain
C12 Terminal 1 bias frequency
11 91 9 × × ×
(917) (speed)
C13 Terminal 1 bias frequency
11 91 9 × × ×
(917) (speed)
C14 Terminal 1 gain frequency
12 92 9 × × ×
(918) (speed)
C15
Terminal 1 gain (speed) 12 92 9 × × ×
(918)
C16 Terminal 1 bias command
13 93 9 × × ×
(919) (torque/magnetic flux)
C17 Terminal 1 bias (torque/
13 93 9 × × ×
(919) magnetic flux)
C18 Terminal 1 gain command
14 94 9 × × ×
(920) (torque/magnetic flux)
C19 Terminal 1 gain (torque/
14 94 9 × × ×
(920) magnetic flux)
Motor temperature detection
C29 calibration (analog
19 99 9 ×
(925)
input)
C30 Terminal 6 bias frequency
1A 9A 9 ×
(926) (speed)
C31
Terminal 6 bias (speed) 1A 9A 9 ×
(926)
C32 Terminal 6 gain frequency
1B 9B 9 ×
(927) (speed)
C33
Terminal 6 gain (speed) 1B 9B 9 ×
(927)
C34 Terminal 6 bias command
1C 9C 9 × × ×
(928) (torque)
C35
× × ×
(928) Terminal 6 bias (torque)
1C 9C 9

C36 Terminal 6 gain command

1D 9D 9 × × ×
(929) (torque)
C37
Terminal 6 gain (torque) 1D 9D 9 × × ×
(929)
C38 Terminal 4 bias command
20 A0 9 × × ×
(932) (torque/magnetic flux)
C39 Terminal 4 bias (torque/
20 A0 9 × × ×
(932) magnetic flux)
C40 Terminal 4 gain command
21 A1 9 × × ×
(933) (torque/magnetic flux)
C41 Terminal 4 gain (torque/
21 A1 9 × × ×
(933) magnetic flux)
989 Parameter for manufacturer setting. Do not set.
990 PU buzzer control 5A DA 9
991 PU contrast adjustment 5B DB 9 ×

455
Appendix 3 Specification change
Appendix 3-1 SERIAL number check
Check the SERIAL number indicated on the inverter rating plate or package. (Refer to page 2)
Rating plate example

Symbol Year Month Control number

SERIAL (Serial No.)
The SERIAL consists of one symbol, two characters indicating
production year and month, and six characters indicating control
number.
The last digit of the production year is indicated as the Year, and
the Month is indicated by 1 to 9, X (October), Y (November), or Z
(December.)

Appendix 3-2 Changed functions

(1) ⋅ The setting values "65 and 66" are added to Pr. 52 DU/PU main display data selection.
⋅ The setting value "2" is added to Pr. 170 Watt-hour meter clear.
⋅ Writing/reading of Pr. 296 Password lock level and Pr. 297 Password lock/unlock, and output of Password locked
(LOCd)
⋅ Reading of the monitors dedicated to the Mitsubishi inverter protocol (computer link communication), "output
voltage (with regenerative display)" and "cumulative regenerative power"
⋅ Reading of the monitors dedicated to Modbus-RTU communication, "output voltage (with regenerative display)"
and "cumulative regenerative power"
⋅ Output of the option fault (E.OPT)

Operation Panel FR-PU04

E.OPT Option Fault
Indication FR-PU07
Name Option fault
Appears when torque command by the plug-in option is selected using Pr.804 Torque command source
selection selection and no plug-in option in mounted.
Description Appears when the switch for the manufacturer setting of the plug-in option is changed.
y Appears when a communication option is connected while Pr. 296 = "0 or 100."
Check that the plug-in option for torque command setting is connected.
Check point
y Check for the password lock with a setting of Pr. 296 = "0, 100"
Check for connection of the plug-in option. Check the Pr. 804 Torque command source selection setting.
Return the switch for the manufacturer setting of the plug-in option to the initial status. (Refer to
Corrective action instruction manual of each option)
y To apply the password lock when installing a communication option, set Pr.296 ≠ "0,100".
If the problem still persists after taking the above measure, please contact your sales representative.
The changes apply to the August 2009 production or later.

(2) ⋅ Compatibility with the plug-in option, FR-A7AL

The setting value "1" is added to Pr. 419 Position command source selection. The setting value "2" is added to Pr.
804 Torque command source selection.
⋅ The setting value "2 (magnetic flux decay output shutoff)" is added to Pr. 850 Brake operation selection.
The changes apply to the January 2010 production or later.

456
MEMO

457
REVISIONS
*The manual number is given on the bottom left of the back cover.

Print Date * Revision

Manual Number
Jan. 2008 IB(NA)-0600337ENG-A First edition
Mar. 2008 IB(NA)-0600337ENG-B Additions
⋅ FR-A721-18.5K to 55K
Sep. 2008 IB(NA)-0600337ENG-C Additions
⋅ FR-A741-5.5K to 55K
Mar. 2011 IB(NA)-0600337ENG-D Addition
⋅ Setting values "65, 66" for Pr. 52 DU/PU main display data selection
⋅ Setting value "2" for Pr. 170 Watt-hour meter clear
⋅ Pr. 296 Password lock level
⋅ Pr. 297 Password lock/unlock
⋅ Setting value "2" for Pr. 850 Brake operation selection
⋅ Password locked (LOCD)
⋅ Compatibility with FR-A7AL
Modification
⋅ Option fault (E.OPT)

For Maximum Safety

• Mitsubishi inverters are not designed or manufactured to be used in equipment or systems in situations that
can affect or endanger human life.
• When considering this product for operation in special applications such as machinery or systems used in
passenger transportation, medical, aerospace, atomic power, electric power, or submarine repeating
applications, please contact your nearest Mitsubishi sales representative.
• Although this product was manufactured under conditions of strict quality control, you are strongly advised
to install safety devices to prevent serious accidents when it is used in facilities where breakdowns of the
product are likely to cause a serious accident.
• Please do not use this product for loads other than three-phase induction motors.

458 IB(NA)-0600337ENG-D
bcnc22005642.fm 1 ページ ２０１３年１月２１日 月曜日 午後３時１７分

FR-V500, A700, A701 Series

Instruction Manual Supplement
When installing a thermal relay to the cooling fan of the vector-control dedicated motors (SF-
V5RU), use the following recommended thermal relay settings.

200V class (Mitsubishi dedicated motor [SF-V5RU (1500r/min series)])

Motor type
1 2 3 5 7 11 15 18 22 30 37 45 55
SF-V5RUK
Voltage Single-phase 200V/50Hz Three-phase 200V/50Hz
Single-phase 200V to 230V/60Hz Three-phase 200 to 230V/60Hz
Cooling fan (with 36/55W 22/28W 55/71W 100/156W 85/130W
Input *1 (0.26/0.32A) (0.11/0.13A) (0.37/0.39A) (0.47/0.53A) (0.46/0.52A)
thermal protector)*2*3
Thermal relay
0.36A 0.18A 0.51A 0.69A 0.68A
settings

400V class (Mitsubishi dedicated motor [SF-V5RUH (1500r/min series)])

Motor type
1 2 3 5 7 11 15 18 22 30 37 45 55
SF-V5RUHK
Voltage Single-phase 200V/50Hz Three-phase 380 to 400V/50Hz
Single-phase 200V to 230V/60Hz Three-phase 400 to 460V/60Hz
Cooling fan (with 36/55W 22/28W 55/71W 100/156W 85/130W
Input *1 (0.26/0.32A) (0.11/0.13A) (0.19/0.19A) (0.27/0.30A) (0.23/0.26A)
thermal protector)*2*3
Thermal relay
0.36A 0.18A 0.25A 0.39A 0.34A
settings
*1 Power (current) at 50Hz/60Hz.
*2 The cooling fan is equipped with a thermal protector. The cooling fan stops when the coil temperature exceeds
the specified value in order to protect the fan motor. A restrained cooling fan or degraded fan motor insulation
may causes the rise in coil temperature. The fan motor re-starts when the coil temperature drops to normal.
*3 The voltage and input values are the standard specifications of the cooling fan in free air. When the cooling fan
is used with a motor, it requires more energy to perform its work, and thus the above input values become
slightly larger. The cooling fan can, however, be used as it is without causing problems. When a thermal relay is
to be prepared at the customer's side, use the recommended thermal relay settings.

1/1 BCN-C22005-642
bcnc22005646.fm 1 ページ ２０１３年９月９日 月曜日 午後１２時４９分

FR-A701 Series
Instruction Manual Supplement
For the FR-A701 series manufactured in September 2013 or later, the following specifications are
added. Check the serial number printed on the rating plate of the inverter. (For how to find the
SERIAL number, refer to page .)

 Brake sequence function (Pr.278 to Pr.285, Pr.292)

When the brake sequence mode 1 or 2 (Pr.292 = "17 or 18") is selected, the brake sequence remains active even if
the RT signal or X9 signal is turned ON to select the second or third function.

Parameter Initial Setting

Name Description
Number Value Range
Brake opening Set to the rated slip frequency of the motor + about 1.0Hz.
278 3Hz 0 to 30Hz
This parameter may be only set if Pr.278 Pr.282.
frequency
Generally, set this parameter to about 50 to 90%. If the
setting is too low, the load is liable to drop due to gravity at
279 Brake opening current 130% 0 to 220%
start.
Suppose that the rated inverter current is 100%.
Brake opening current
280 0.3s 0 to 2s Generally, set this parameter to about 0.1 to 0.3s.
detection time
Set the mechanical delay time until the brake is loosened
Brake operation time at when Pr.292 = "7 or 17".
281 0.3s 0 to 5s
start Set the mechanical delay time until the brake is loosened
+ about 0.1 to 0.2s when Pr.292 = "8 or 18".
Set the frequency to activate the mechanical brake by
turning off the brake opening request signal (BOF).
Brake operation
282 6Hz 0 to 30Hz Generally, set this parameter to the Pr.278 setting + 3 to
frequency 4Hz.
Setting is enabled only when Pr.282  Pr.278.
Set the mechanical delay time until the brake is closed +
Brake operation time at 0.1s when Pr.292 = "7 or 17".
283 0.3s 0 to 5s
stop Set the mechanical delay time until the brake is closed +
0.2 to 0.3s when Pr.292 = "8 or 18".
0 Deceleration is not detected.
Deceleration detection
284 0 If deceleration is not normal during deceleration operation,
function selection 1
the inverter fault is provided.
If (detected frequency) - (output frequency)  Pr.285 during
Overspeed detection 0 to 30Hz encoder feedback control, the inverter fault (E.MB1) is
285 9999
provided.
frequency*
9999 Overspeed is not detected.
0 Normal operation mode
Optimum acceleration/deceleration mode (Refer to the
3
Instruction Manual)
5, 6 Elevator mode (Refer to the Instruction Manual)
7 Brake sequence mode 1 Disabled when the
Automatic acceleration/ second or third function
292 0 8 Brake sequence mode 2
deceleration is selected
Shortest acceleration/deceleration mode (Refer to the
11
Instruction Manual)
17 Brake sequence mode 1 Enabled even if the
second or third function
18 Brake sequence mode 2 is selected
* When exercising vector control with the FR-A7AP/FR-A7AL (option), this parameter changes to excessive speed deviation detection frequency.
(For details, refer to the Instruction Manual.)

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<Connection diagram>
MC *1 The input signal terminal used differs according to
Sink logic the Pr.178 to Pr.189 settings.
Mechanical
Pr.184 = 15 brake *2 The output signal terminal used differs according to
Pr.190 = 20 the Pr.190 to Pr.196 settings.
MCCB *3 The current should be within the permissible current
R/L1 U of transistor in the inverter. (24V 0.1ADC)
Power
S/L2 V Motor
supply
T/L3 W
Start signal STF 24VDC
Multi-speed signal RH *2
*3

RUN(BOF) MC Brake opening request

Brake opening completion signal AU(BRI) *1 signal (BOF)
(BRI) SD SE

CAUTION
 When brake sequence mode is selected, automatic restart after instantaneous power failure is invalid.
 When using this function, set the acceleration time to 1s or longer.
 Changing the terminal function using any of Pr.178 to Pr.189, Pr.190 to Pr.196 may affect the other functions. Set parameters after
confirming the function of each terminal.

(1) Set the brake sequence mode

 Select either Real sensorless vector control, vector control (speed control) or Advanced magnetic flux vector
control. The brake sequence function is valid only when the External operation mode, External/PU combined
operation mode 1 or Network operation mode is selected.
 Set "7(17) or 8(18)" (brake sequence mode) in Pr.292.
To ensure more complete sequence control, it is recommended to set "7(17)" (brake opening completion signal
input) in Pr.292.
 Set "15" in any of Pr.178 to Pr.189 (input terminal function selection) and assign the brake opening completion signal
(BRI) to the input terminal.
 Set "20 (positive logic)" or "120 (negative logic)" in any of Pr.190 to Pr.196 (output terminal function selection) and
assign the brake opening request signal (BOF) to the output terminal.

(2) With brake opening completion signal input (Pr.292 = "7 or 17")
 When the start signal is input to the inverter, the inverter starts running. When the internal speed command
reaches the value set in Pr.278 and the output current is not less than the value set in Pr.279, the inverter outputs
the brake opening request signal (BOF) after the time set in Pr.280 has elapsed.
When the time set in Pr.281 elapses after the brake opening completion signal (BRI) was activated, the inverter
increases the output frequency to the set speed.
 When the inverter decelerates to the frequency set in Pr.282 during deceleration, the inverter turns OFF the BOF
signal and decelerates further to the frequency set in Pr.278. After electromagnetic brake operation completes and
inverter recognizes the turn OFF of BRI signal, the inverter holds the frequency set in Pr.278 for the time set in
Pr.283. And after the time set in Pr.283 passes, the inverter decelerates again. The inverter finally stops when its
frequency reaches to Pr.13 Starting frequency setting or 0.5Hz, whichever is lower.

Output frequency(Hz)

Target frequency Pr.280

Pr.13 setting or 0.5Hz,
Pr.282 Pr.281
whichever is lower
Pr.278
Pr.13
Time
ON Pr.283
STF
Pr.279
Output current
Brake opening request ON
(BOF signal)
Brake opening completion ON
(BRI signal)
Closed Opened Closed
Electromagnetic brake
operation

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(3) Without brake opening completion signal input (Pr.292 = "8 or 18")
 When the start signal is input to the inverter, the inverter starts running. When the internal speed command
reaches the value set in Pr.278 and the output current is not less than the value set in Pr.279, the inverter outputs
the brake opening request signal (BOF) after the time set in Pr.280 has elapsed.
When the time set in Pr.281 elapses after the BOF signal is output, the inverter increases the output frequency to
the set speed.
 When the inverter decelerates to the frequency set in Pr.282 during deceleration, the inverter turns OFF the BOF
signal and decelerates further to the frequency set in Pr.278. After the turn OFF of BOF signal, the inverter holds
the frequency set in Pr.278 for the time set in Pr.283. And after the time set in Pr.283 passes, the inverter
decelerates again. The inverter finally stops when its frequency reaches to Pr.13 Starting frequency setting or 0.5Hz,
whichever is lower.

Output frequency (Hz)

Target frequency Pr.280

Pr.282 Pr.13 setting or 0.5Hz,
Pr.281
Pr.278 whichever is lower

Pr.13
Time
ON Pr.283
STF

Output current Pr.279

Brake opening request ON
(BOF signal)
Closed Opened Closed
Electromagnetic brake
operation

(4) Relation between Pr.292 Automatic acceleration/deceleration and the RT, X9, or JOG signal
 The table below shows when the function of each input signal becomes available depending on the Pr.292 setting.

Pr.292 setting RT signal / X9 signal JOG signal

0 Depending on the Pr.155 setting Always available
3, 5 to 8, 11 Only during an inverter stop Only during an inverter stop
17, 18 Depending on the Pr.155 setting Only during an inverter stop

 The table below shows the relation between each input signal and the operating status depending on the Pr.292
setting.

Operating status (Automatic acceleration/deceleration / Normal operation)

Pr.292 setting Input signal status
During an inverter stop During inverter operation
0  Normal operation Normal operation
Automatic acceleration/deceleration
OFF Maintains the operating status before
JOG signal (JOG invalid)
switching of the signal
ON Normal operation (JOG valid)
3, 5 to 8, 11
Automatic acceleration/deceleration (RT/
OFF Maintains the operating status before
RT/X9 signal X9 invalid)
switching of the signal
ON Normal operation (RT/X9 valid)
Automatic acceleration/deceleration
OFF Maintains the operating status before
JOG signal (JOG invalid)
switching of the signal
ON Normal operation (JOG valid)
17, 18 Automatic acceleration/deceleration (RT/ Automatic acceleration/deceleration (RT/
OFF
X9 invalid) X9 invalid)
RT/X9 signal
Automatic acceleration/deceleration (RT/ Automatic acceleration/deceleration (RT/
ON
X9 valid) X9 valid)

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(5) Protective functions

If any of the following errors occurs in the brake sequence mode, the inverter results in a fault, trips, and turns off the
brake opening request signal (BOF).
Fault Display Description
(Detection frequency) - (output frequency) > Pr.285 during encoder feedback control
E.MB1
When Pr.285 Overspeed detection frequency = 9999, overspeed is not detected.
Deceleration is not normal during deceleration operation from the set frequency to the frequency set in Pr.282.
E.MB2
(when Pr.284 =1) (except stall prevention operation)
E.MB3 Brake opening request signal (BOF) turned on though the motor is at a stop. (gravity drop prevention function)
Although more than 2s have elapsed after the start command (forward or reverse rotation) is input, the brake
E.MB4
opening request signal (BOF) does not turn on.
Although more than 2s have elapsed after the brake opening request signal (BOF) turned on, the brake
E.MB5
opening completion signal (BRI) does not turn on.
Though the inverter had turned on the brake opening request signal (BOF), the brake opening completion
E.MB6
signal (BRI) turned off midway.
Although more than 2s have elapsed after the brake opening request signal (BOF) turned off at a stop, the
E.MB7
brake opening completion signal (BRI) does not turn off.

CAUTION
 During deceleration, inverter output is shut OFF when the frequency reaches Pr.13 Starting frequency or 0.5Hz,
whichever is lower. For Pr.278 Brake opening frequency, set a frequency equal to or higher than the Pr.13 setting or 0.5Hz.
 Overspeed detection (Pr.285) is valid under encoder feedback control (used with the FR-A7AP/FR-A7AL (option)) even
if a value other than "7, 8, 17 or 18" is set in Pr. 292.
 Setting Pr.278 Brake opening frequency too high activates stall prevention operation and may cause E.MB4.
 If the sum of the time between Pr.13 Starting frequency and
Pr.278 Brake opening frequency + Pr.280 Brake opening current Output frequency (Hz)
detection time is more than 2s, E.MB4 occurs.
Less than 2s
Output
frequency
Pr.278 (Hz)

Pr.13
Pr.280
Time

ON
Brake opening request
(BOF signal)

 Additional notes for Instructions for UL and cUL

Motor overload protection
When using the electronic thermal relay function as motor overload protection, set the rated motor current in Pr.9
Electronic thermal O/L relay.
CAUTION
• Motor over temperature sensing is not provided by the drive.

General precaution
CAUTION - Risk of Electric Shock -
The bus capacitor discharge time is 10 minutes. Before starting wiring or inspection, switch power off, wait for
more than 10 minutes.
ATTENTION - Risque de choc électrique -
La durée de décharge du condensateur de bus est de 10 minutes. Avant de commencer le câblage ou
l’inspection, mettez l’appareil hors tension et attendez plus de 10 minutes.
 SERIAL number check
Check the SERIAL number indicated on the inverter rating plate or package.
Refer to the inverter manual for the location of the rating plate.
Rating plate example
 3 9  The SERIAL consists of one symbol, two characters indicating production year and month,
and six characters indicating control number.
Symbol Year Month Control number The last digit of the production year is indicated as the Year, and the Month is indicated by
SERIAL (Serial No.) 1 to 9, X (October), Y (November), or Z (December.)

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FR-A701 Series
Instruction Manual Supplement
For the FR-A701 series manufactured in January 2015 or later, the following specifications are added.
Check the year and month of manufacture by the SERIAL number printed on the rating plate of the
inverter.
 SERIAL number check
Refer to the inverter manual for the location of the rating plate.
Rating plate example
 5 1 
Symbol Year Month Control number
SERIAL
The SERIAL consists of one symbol, two characters indicating production
year and month, and six characters indicating control number.
The last digit of the production year is indicated as the Year, and the Month
is indicated by 1 to 9, X (October), Y (November), or Z (December).

In the following sections, indicates the functions that are driven by PM sensorless vector control.

1 PM sensorless vector control sIPt

Purpose Parameters to be Set Refer to Page

To perform IPM parameter initialization IPM parameter initialization Pr. 998 4
To select the torque characteristic in a Low-speed range torque
Pr. 788 14
low-speed range characteristics
Chapter 4 of the
To adjust the gain for PM sensorless Adjusting the speed control
Pr. 820, Pr. 821 Instruction Manual
vector control gain
(Applied)
Highly efficient motor control and highly accurate motor speed control can be performed by using the inverter with an
IPM (internal permanent magnet) motor, which is more efficient than an induction motor.
The motor speed is calculated based on the output voltage and current from the inverter. It does not require a speed
detector such as an encoder. The inverter drives the IPM motor with the least required current when a load is applied
in order to achieve the highest motor efficiency.
POINT
The following conditions must be met to perform PM sensorless vector control.
· For the motor model, IPM motor must be used.
· The motor capacity must be equal to or one rank lower than the inverter capacity.
· Single-motor operation (one motor run by one inverter) must be performed.
· The overall wiring length with the motor must be 100m or less. (When the wiring length exceeds 30m,
offline auto tuning must be performed.)
CAUTION
· The speed setting range for an MM-CF IPM motor is between 0 and 200Hz.
· The carrier frequency is limited during PM sensorless vector control. (Refer to page 17)
· Constant-speed operation cannot be performed in the low-speed range of 200r/min or less under current
synchronization operation. (Refer to page 14)
· During PM sensorless vector control, the RUN signal is output about 100ms after turning ON the start command (STF,
STR). The delay is due to the magnetic pole detection.
· During PM sensorless vector control, the automatic restart after instantaneous power failure function operates only
when an MM-CF IPM motor is connected. However, the frequency search may not be available at 2200 r/min or
above. The restart operation cannot be performed until the motor speed drops to a frequency where the frequency
search is available.

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1.1 Setting procedure of PM sensorless vector control

· This inverter is set for a general-purpose motor in the initial setting. Follow the following procedure to change the
setting for the PM sensorless vector control.

Driving an MM-CF IPM motor

Perform IPM parameter initialization by selecting IPM in the parameter setting mode on the operation
panel.* (Refer to page 3)

Set "3003" (MM-CF IPM motor parameter setting (rotations per minute)) in (IPM parameter
initialization) to select the PM sensorless vector control.
P.RUN on the operation panel (FR-DU07) is lit when PM sensorless vector control is set.
Driving an IPM motor other than MM-CF

Set the motor. (Pr.9, Pr.71, Pr.80, Pr.81, Pr.83, Pr.84) (Refer to page 7)
Set "8093 (IPM motor other than MM-CF)" in Pr.71 Applied motor. Set Pr.9
Electronic thermal O/L relay, Pr.80 Motor capacity, Pr.81 Number of motor poles,
Pr.83 Rated motor voltage, and Pr.84 Rated motor frequency according to the
motor specifications.
(Setting "9999 (initial value)" in Pr. 80 or Pr. 81 selects V/F control.)

Perform offline auto tuning for an IPM motor. (Pr.96) (Refer to page 7)
To perform tuning, set "1" (offline auto tuning without rotating motor (for other
than MM-CF)) in Pr. 96.

Use Pr.998 to perform IPM parameter initialization. (Refer to page 4)

Setting "8009" or "8109" in Pr. 998 IPM parameter initialization selects the IPM
motor parameter settings.
"8009": Parameter (rotations per minute) settings for an IPM motor other than MM-CF
"8109": Parameter (frequency) settings for an IPM motor other than MM-CF

Set parameters such as the acceleration/deceleration time and multi-speed setting.

Set parameters such as the acceleration/deceleration time and multi-speed setting
as required.

Set the operation command. (Refer to the Instruction Manual.)

Select the start command and speed command.

Test run As required for MM-CF.

· Perform offline auto tuning for an IPM motor. (Refer to page 7)
* Two IPM parameter initialization methods are available for MM-CF IPM motors; setting Pr.998 IPM parameter initialization, and selecting
(IPM parameter initialization) mode on the operation panel. One of the two methods can be selected.
To change to the PM sensorless vector control, perform IPM parameter initialization at first. If parameter initialization is performed after
setting other parameters, some of those parameters will be initialized too. (Refer to page 6 for the parameters that are initialized.)

REMARKS
· To use a motor capacity that is one rank lower than the inverter capacity, set Pr. 80 Motor capacity before performing
IPM parameter initialization.

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(1) PM sensorless vector control setting by selecting IPM in the parameter setting
mode on the operation panel ( )

POINT
· The parameters required to drive an MM-CF IPM motor are automatically changed as a batch. (Refer to
page 6)

Operation Initialize the parameter setting for an MM-CF IPM motor by selecting IPM in the parameter setting mode on the
example operation panel.

Operation Display
1. Screen at power-ON
The monitor display appears.

The parameter
2. Parameter setting mode number read
Press to choose the parameter setting previously appears.

mode.
3. Selecting the parameter
Turn until (IPM parameter
initialization) appears.

4. Displaying the setting

Press to read the currently set value.
" " (initial value) appears.
5. Selecting the setting
Turn to change it to the set value
" ".

6. Parameter setting
Press to set.
Flicker ... Parameter setting complete!!
P.RUN indicator is lit.
Turn to read another parameter.

Press to show the setting again.

Press twice to show the automatic parameter setting (AUTO).

Setting Description
0 Parameter settings for a general-purpose motor
3003 Parameter settings for an IPM motor MM-CF (rotations per minute)

REMARKS
· Performing IPM parameter initialization by selecting IPM in the parameter setting mode on the operation panel
automatically changes the Pr. 998 IPM parameter initialization setting.
· In the initial parameter setting, the capacity same as the inverter capacity is set in Pr. 80 Motor capacity. (Refer to page
18.) To use a motor capacity that is one rank lower than the inverter capacity, set Pr. 80 Motor capacity before
performing IPM parameter initialization by selecting the mode on the operation panel.
· To set a speed or to display monitored items in frequency, set Pr. 998. (Refer to page 4.)

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(2) PM sensorless vector control display and PM sensorless vector control signal
P.RUN on the operation panel (FR-DU07) is lit and the PM sensorless vector control signal (IPM) is output
during PM sensorless vector control.
For the terminal to output the PM sensorless vector control signal, assign the function by setting "57 (positive
logic)" or "157 (negative logic)" in any of Pr.190 to Pr.196 (Output terminal function selection).

(3) Loss of synchronism detection

Operation Panel E.SOT FR-PU04 Fault 14

Indication FR-PU07 Motor step out
Name Loss of synchronism detection
Stops the output when the operation is not synchronized. (This function is only available
Description
under PM sensorless vector control.)
· Check that the IPM motor is not driven overloaded.
Description · Check if a start command is given to the inverter while the IPM motor is coasting.
· Check if a motor other than the IPM motor (MM-CF series) is driven.
· Set the acceleration time longer.
· Reduce the load.
Corrective action · If the inverter restarts during coasting, set Pr.57 Restart coasting time "9999," and select
the automatic restart after instantaneous power failure.
· Drive an IPM motor (MM-CF series).

1.2 Initializing the parameters required for the PM sensorless vector control
(Pr.998)

· By performing IPM parameter initialization, PM sensorless vector control is selected and the
parameters, which are required to drive an IPM motor, are selected. Initial settings and setting ranges
of the parameters are adjusted automatically to drive an IPM motor.
· Two IPM parameter initialization methods are available; setting Pr.998 IPM parameter initialization, and
selecting (IPM parameter initialization) mode on the operation panel. One of the two methods
can be selected.

Parameter Initial Setting

Name Description
number value range
Initial parameter
settings required to
Parameter settings for a general-
0 drive a general-
purpose motor (frequency)
purpose motor are
set.
Parameter settings for an MM-CF IPM
3003
motor (rotations per minute)
IPM parameter
998 *1 0 Parameter settings for an MM-CF IPM
initialization 3103
motor (frequency) Initial parameter
Parameter (rotations per minute) settings required to
8009 settings for an IPM motor other than drive an IPM motor
MM-CF (after tuning) *2 are set.
Parameter (frequency) settings for an
8109 IPM motor other than MM-CF (after
tuning) *2
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.
*2 To use an IPM motor other than MM-CF, offline auto tuning must be performed for the IPM motor.

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(1) IPM parameter initialization (Pr.998)

· To use a motor capacity that is one rank lower than the inverter capacity, set Pr.80 Motor capacity before
performing IPM parameter initialization. By performing IPM parameter initialization, initial settings required
to drive an IPM motor are set in parameters.
· When Pr. 998 = "3003," the monitor is displayed and the frequency is set using the motor rotations per
minute. To use frequency to display or set, set Pr. 998 = "3103."
· Set Pr. 998 = "0" to change the PM sensorless vector control parameter settings to the parameter settings
required to drive a general-purpose motor.
· When using an IPM motor other than MM-CF, set Pr. 998 = "8009 or 8109" to select the parameter settings
required to perform PM sensorless vector control. The setting can be made after performing offline auto
tuning for an IPM motor.

Operation IPM in the

Pr.998 Setting Description
parameter setting mode
0
Parameter settings for a general-purpose motor (frequency) (IPM) Write "0"
(initial value)
3003 Parameter settings for an IPM motor MM-CF (rotations per minute) (IPM) Write "3003"
3103 Parameter settings for an IPM motor MM-CF (frequency) 
Parameter (rotations per minute) settings for an IPM motor other
8009 
than MM-CF (after tuning)
Parameter (frequency) settings for an IPM motor other than MM-CF
8109 
(after tuning)

REMARKS
· Make sure to set Pr. 998 before setting other parameters. If the Pr. 998 setting is changed after setting other
parameters, some of those parameters will be initialized too. (Refer to "(2) " for the parameters that are initialized.)
· To change back to the parameter settings required to drive a general-purpose motor, perform parameter clear or all
parameter clear.
· If the setting of Pr. 998 IPM parameter initialization is changed from "3003, 8009 (rotations per minute)" to "3103, 8109
(frequency)," or from "3103, 8109" to "3003, 8009," all the target parameters are initialized.
The purpose of Pr. 998 is not to change the display units. Use Pr. 144 Speed setting switchover to change the display
units between rotations per minute and frequency. Pr. 144 enables switching of display units between rotations per
minute and frequency without initializing the parameter settings.
Example) Changing the Pr. 144 setting between "6" and "106" switches the display units between frequency and
rotations per minute.

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(2) IPM parameter initialization list

The parameter settings in the following table are changed to the settings required to perform PM sensorless
vector control by selecting PM sensorless vector control with the IPM parameter initialization mode on the
operation panel or with Pr. 998 IPM parameter initialization setting. The changed settings differ according to the
IPM motor specification (capacity).
Performing parameter clear or all parameter clear sets back the parameter settings to the settings required to
drive a general-purpose motor.
Setting
Setting
General- IPM motor IPM motor increments
Parameter Name purpose motor (rotations per minute) (frequency)
Pr.998 (Initial 0setting) (MM-CF)
3003 8009 (other 3103 8109 (other 3003, 0, 3103,
than MM-CF) (MM-CF) than MM-CF) 8009 8109
1 Maximum frequency 120Hz 3000r/min  200Hz  1r/min 0.01Hz
4 Multi-speed setting (high speed) 60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
Rated inverter Rated motor Rated motor
9 Electronic thermal O/L relay
current
current  current  0.01A
(Refer to page 18) (Refer to page 18)
13 Starting frequency 0.5Hz 8r/min *4 Pr. 84 10% 0.5Hz *5 Pr. 84 10% 1r/min 0.01Hz
15 Jog frequency 5Hz 200r/min Pr. 84 10% 13.33Hz Pr. 84 10% 1r/min 0.01Hz
18 High speed maximum frequency 120Hz 3000r/min  200Hz  1r/min 0.01Hz
Acceleration/deceleration
20 reference frequency
60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
22 Stall prevention operation level 150% 150% 0.1%
37 Speed display 0 0 1
55 Frequency monitoring reference 60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
Rated inverter Rated motor Rated motor
56 Current monitoring reference
current
current Pr. 859 current Pr. 859 0.01A
(Refer to page 18) (Refer to page 18)
71 Applied motor 0 330 *1  330 *1  1
Motor capacity Motor capacity
80 Motor capacity 9999
(MM-CF) *2

(MM-CF) *2
 0.01kW
81 Number of motor poles 9999 8  8  1
84 Rated motor frequency 60Hz 2000r/min  133.33Hz  1r/min 0.01Hz
Terminal 2 frequency setting
125 (903) gain frequency
60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
Terminal 4 frequency setting
126 (905) gain frequency
60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
144 Speed setting switchover 4 108 Pr. 81 +100 8 Pr. 81 1
240 Soft-PWM operation selection 1 0 1
263 Subtraction starting frequency 60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
Power failure deceleration
266 time switchover frequency
60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
Pr. 1 (Pr. 18)  Pr. 1 (Pr. 18)  1r/min 0.01Hz
374 Overspeed detection level 140Hz 3150r/min
105%
210Hz
105%
386 Frequency for maximum input pulse 60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
390 *3 % setting reference frequency 60Hz 133.33Hz Pr. 84 133.33Hz Pr. 84 0.01Hz
505 Speed setting reference 60Hz 133.33Hz Pr. 84 133.33Hz Pr. 84 0.01Hz
Current average value Rated inverter Rated motor Rated motor
557 monitor signal output current current Pr. 859 current Pr. 859 0.01A
reference current (Refer to page 18) (Refer to page 18)
820 Speed control P gain 1 60% 30% 1%
821 Speed control integral time 1 0.333s 0.333s 0.001s
824 Torque control P gain 1 100% 100% 1%
825 Torque control integral time 1 5ms 20ms 0.1ms
870 Speed detection hysteresis 0Hz 8r/min 0.5Hz 1r/min 0.01Hz
Regeneration avoidance
885 compensation frequency limit value
6Hz 200r/min Pr. 84 10% 13.33Hz Pr. 84 10% 1r/min 0.01Hz
Energy saving monitor Rated inverter
893 reference (motor capacity) capacity
Motor capacity (Pr. 80) 0.01kW
C14 (918) Terminal 1 gain frequency (speed) 60Hz 2000r/min Pr. 84 133.33Hz Pr. 84 1r/min 0.01Hz
: The setting does not change.
*1 Setting Pr. 71 Applied motor = one of "333, 334, 8093, 8094" does not change the Pr. 71 Applied motor setting.
*2 Setting Pr. 80 Motor capacity  "9999" does not change the Pr. 80 Motor capacity setting.
*3 This parameter can be set when FR-A7NL is mounted.
*4 200r/min when Pr. 788 Low-speed range torque characteristics = "0".
*5 13.33Hz when Pr. 788 Low-speed range torque characteristics = "0".

REMARKS
If IPM parameter initialization is performed in rotations per minute (Pr. 998 = "3003" or "8009"), the parameters not
listed in the table above are also set and displayed in rotations per minute.

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1.3 Offline auto tuning for an IPM motor (motor constant tuning)
(Pr.1, Pr.9, Pr.18, Pr.71, Pr.80, Pr.81, Pr.83, Pr.84, Pr.90, Pr.92, Pr.93, Pr.96,
Pr.684, Pr.706, Pr.707, Pr.711, Pr.712, Pr.721, Pr.724, Pr.725, Pr.859)

The offline auto tuning for an IPM motor enables the optimal operation of an IPM motor.
 What is offline auto tuning?
Under PM sensorless vector control, setting motor constants automatically (offline auto tuning) enables
optimal operation of motors even when motor constants vary or when the wiring distance is long. The offline
auto tuning also enables the operation with an IPM motor other than MM-CF.

Parameter Initial
Name Setting Range Description
Number Value
1 Maximum frequency 120Hz 0 to 120Hz Set the upper limit of the output frequency.
Rated
Electronic thermal O/
9 inverter 0 to 500A Set the rated motor current.
L relay
current
Set when performing the operation at
High speed maximum
18 120Hz 120 to 400Hz 120Hz or more. (Limited at 300Hz under
frequency
PM sensorless vector control)
0 to 8, 13 to 18, 30, 33, 34, 40,
Setting a motor type selects its thermal
71 Applied motor 0 43, 44, 50, 53, 54, 330, 333,
characteristic and the motor constant.
334, 8093, 8094
0.4 to 55kW Set the applied motor capacity.
80 Motor capacity 9999
9999 V/F control
2, 4, 6, 8, 10 Set the number of motor poles.
Number of motor X18 signal-ON:V/F Set 10 + number of
81 9999 12, 14, 16, 18, 20
poles control motor poles.
9999 V/F control
200/
83 Rated motor voltage 0 to 1000V Set the rated motor voltage (V).
400V *
Set the rated motor frequency (Hz).
Rated motor
84 60Hz 10 to 300Hz (Limited at 120Hz when Pr. 71 is set to a
frequency
motor other than IPM)
90 Motor constant (R1) 9999 0 to 50, 9999 Tuning data
Motor constant (L1)/d- 0 to 50, (The value measured by offline auto tuning
92 9999 is automatically set.)
axis inductance (0 to 1000mH), 9999
9999: Motor constant of the MM-CF IPM
Motor constant (L2)/q- 0 to 50, motor. (Except 9999, the set value is the
93 9999
axis inductance (0 to 1000mH), 9999 motor constant.)
0 Offline auto tuning is not performed
Offline auto tuning is performed without
1
motor running (other than MM-CF)
Auto tuning setting/ Offline auto tuning is performed without
96 0 11
status motor running (MM-CF)
Offline auto tuning by rotating a general-
101 purpose motor (no tuning during PM
sensorless vector control)
Tuning data unit 0 Internal data converted value
684 0
switchover 1 Displayed in "A, , mH, %"
Adjust the constant if the current fluctuates
0 to 5000mV • s/rad
Induced voltage during operation after tuning.
706 9999
constant Constant value calculated based on the
9999
tuning data
10 to 999 Set the motor inertia.
707 Motor inertia (integer) 9999
9999 Uses the inertia of the MM-CF IPM motor

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Parameter Initial
Name Setting Range Description
Number Value
Motor d-axis
711 inductance Ld decay 9999 0 to 100%, 9999
ratio Tuning data
(The value measured by offline auto tuning
Motor q-axis
is automatically set.)
712 inductance Lq decay 9999 0 to 100%, 9999
9999: Motor constant of the MM-CF IPM
ratio
motor. (Except 9999, the set value is the
Starting magnetic motor constant.)
721 pole position 9999 0 to 6000µs, 9999
detection pulse width
Motor inertia 1 to 7 Set the motor inertia.
724 9999
(exponent) 9999 Uses the inertia of the MM-CF IPM motor
Set the maximum current (OCT) level of the
Motor protection 0 to 500%
725 9999 motor (%).
current level
9999 Uses the maximum current of MM-CF
Tuning data
0 to 500A (The value measured by offline auto tuning
859 Torque current 9999 is automatically set.)
9999 Uses the constant of the MM-CF IPM motor
* The initial value differs according to the voltage level. (200V/400V)

POINT
· The settings are valid only under the PM sensorless vector control.
· When the wiring length between the inverter and the motor is long (30m or longer as a reference), use the
offline auto tuning function to drive the motor in the optimum operation characteristic.
· The offline auto tuning enables the operation with an IPM motor other than MM-CF.
· Tuning is enabled even when a load is connected to the motor. (As the load is lighter, tuning accuracy is higher.
Tuning accuracy does not change even if the inertia is large.)
· Reading/writing of motor constants tuned by offline auto tuning are enabled. You can copy the offline auto
tuning data (motor constants) to another inverter with the PU (FR-DU07/FR-PU07).
· The offline auto tuning status can be monitored with the PU (FR-DU07/FR-PU07/FR-PU04).
· Do not use an inverter with a surge voltage suppression filter (FR-ASF-H/FR-BMF-H) connected between the
inverter and the motor.

(1) Before performing offline auto tuning

Check the following before performing offline auto tuning.
· The PM sensorless vector control should be selected.
· A motor should be connected. Note that the motor should be at a stop at a tuning start.
· The motor capacity should be equal to or one rank lower than the inverter capacity.
· The maximum frequency under PM sensorless vector control should be 300Hz.
· Even if tuning is performed without motor running (Pr. 96 Auto tuning setting/status = "11"), the motor may
run slightly. Therefore, fix the motor securely with a mechanical brake, or before tuning, make sure that
there will be no problem in safety if the motor runs. (Caution is required especially in vertical lift
applications). Note that if the motor runs slightly, tuning performance is unaffected.
· Tuning is not available during position control under PM sensorless vector control.

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(2) Setting
To perform tuning, set the following parameters about the motor.

Parameter Setting for an IPM motor other

Name Setting for MM-CF
Number than MM-CF
80 Motor capacity Motor capacity (kW)
81 Number of motor poles Number of motor poles
Set by the IPM parameter
Maximum frequency
1(18) The maximum motor frequency (Hz) initialization
(High speed maximum frequency)
(Refer to page 4.)
9 Electronic thermal O/L relay Rated motor current (A)
84 Rated motor frequency Rated motor frequency (Hz)
Rated motor voltage (V)
83 Rated motor voltage Rated motor voltage (V) printed on the motor's rating
plate.
707 Motor inertia (integer) Motor inertia
9999 (Initial value)
724 Motor inertia (exponent) Jm = Pr.707 10(-Pr.724 ) (kgm2)
Maximum current (OCT) level of the
725 Motor protection current level 9999 (Initial value)
motor (%)
71 Applied motor 8093 333
96 Auto tuning setting/status 1 11

(3) Execution of tuning

CAUTION
· Before performing tuning, check the monitor display of the operation panel (FR-DU07) or parameter unit (FR-PU04/
FR-PU07) if the inverter is in the state ready for tuning. (Refer to 2) below) Turning ON the start command while
tuning is unavailable starts the motor.

1)When performing PU operation, press / on the operation panel.

For External operation, turn ON the start command (STF signal or STR signal). Tuning starts.

REMARKS
· Satisfy the required inverter start conditions to start offline auto tuning. For example, stop the input of MRS signal.

· To force tuning to end, use the MRS or RES signal or press on the operation panel.
(Turning the start signal (STF signal or STR signal) OFF also ends tuning.)
· During offline auto tuning, only the following I/O signals are valid (initial value):
· Input signals <valid signal> STOP, OH, MRS, RT, RES, STF, STR
· Output terminal RUN, OL, IPF, FM, AM, A1B1C1
Note that the progress status of offline auto tuning is output in fifteen steps from AM and FM when speed and
output frequency are selected.
· Do not perform ON/OFF switching of the second function selection signal (RT) during execution of offline auto
tuning. Auto tuning is not executed properly.
· Setting offline auto tuning (Pr. 96 Auto tuning setting/status = "1 or 11") will make pre-excitation invalid.

CAUTION
· Since the RUN signal turns ON when tuning is started, caution is required especially when a sequence which
releases a mechanical brake by the RUN signal has been designed.
· When executing offline auto tuning, input the run command after switching ON the main circuit power (R/L1, S/L2,
T/L3) of the inverter.
· While Pr. 79 = "7," turn the X12 signal ON to tune in the PU operation mode.

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2)Monitor is displayed on the operation panel (FR-DU07) and parameter unit (FR-PU07/FR-PU04) during
tuning as below.
Parameter Unit
Operation Panel (FR-DU07) Display
(FR-PU07/FR-PU04) Display
Pr. 96 setting 1 11 1 11

READ:List READ:List
(1) Setting 1 11
STOP PU STOP PU

(2) Tuning in progress TUNE

2
TUNE
12
STF FWD PU STF FWD PU

TUNE 3 TUNE 13
(3) Normal end COMPLETION COMPETION
STF STOP PU STF STOP PU
Flickering Flickering
(4) Error end
(when the inverter
TUNE
protective function ERROR 9
is activated) STF STOP PU

3)When offline auto tuning ends, press of the operation panel during PU operation. For External
operation, turn OFF the start signal (STF signal or STR signal).
This operation resets the offline auto tuning and the PU's monitor display returns to the normal indication.
(Without this operation, next operation cannot be started.)
REMARKS
· The motor constants measured once in the offline auto tuning are stored as parameters and their data are held
until the offline auto tuning is performed again.
· Changing Pr. 96 setting from "3 or 13" after tuning completion will invalidate the tuning data. In this case, tune
again.

4)If offline auto tuning ended in error (see the table below), motor constants are not set.
Perform an inverter reset and restart tuning.
Error Display Error Cause Remedy
8 Forced end Set "1" or "11" in Pr. 96 and perform tuning again.
9 Inverter protective function operation Make setting again.
Converter output voltage has reached 75%
92 Check for fluctuation of power supply voltage.
of rated value.
Calculation error
93 Check the motor wiring and make setting again.
A motor is not connected.

5)When tuning is ended forcibly by pressing or turning OFF the start signal (STF or STR) during
tuning, offline auto tuning does not end properly. (The motor constants have not been set.)
Perform an inverter reset and restart tuning.
CAUTION
· An instantaneous power failure occurring during tuning will result in a tuning error.
After power is restored, the inverter goes into the normal operation mode. Therefore, when STF (STR) signal is
ON, the motor runs in the forward (reverse) rotation.
· Any alarm occurring during tuning is handled as in the ordinary mode. Note that even if a retry operation has been
set, retry is not performed.
· The set frequency monitor displayed during the offline auto tuning is 0Hz.

CAUTION
Note that the motor may start running suddenly.

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(4) Utilizing or changing offline auto tuning data

The data measured in the offline auto tuning can be read and utilized or changed.
<Operating procedure>
1)Set Pr. 71 according to the motor used.
Motor Pr. 71 Setting
MM-CF 334
IPM motor
Other than MM-CF 8094

2) In the parameter setting mode, read the following parameters and set desired values.
The display units of the read motor constants can be changed with Pr. 684 Tuning data unit switchover.
Setting Pr.684 = "1" does not change the parameter settings.

Parameter Setting Increments Read Value Setting

Name
Number Pr.684 = 0 Pr.684 = 1 Pr.71 = 334 Pr.71 = 8094 Range
90 Motor constant (R1) Internal data 0.001 Tuned data *1 Tuned data *1 0 to ***, 9999
Motor constant (L1)/d-
92 Internal data 0.1mH 9999 *2 Tuned data *1 0 to ***, 9999
axis inductance
Motor constant (L2)/q-
93 Internal data 0.1mH 9999 *2 Tuned data *1 0 to ***, 9999
axis inductance
Motor d-axis
711 inductance Ld decay Internal data 0.1% 9999 *2 Tuned data *1 0 to ***, 9999
ratio
Motor q-axis
712 inductance Lq decay Internal data 0.1% 9999 *2 Tuned data *1 0 to ***, 9999
ratio
Starting magnetic pole
721 position detection Internal data 1(s) 9999 *2 Tuned data *1 0 to ***, 9999
pulse width
859 Torque current Internal data 0.01A Tuned data *1 Tuned data *1 0 to ***, 9999
*1 As the motor constants measured in the offline auto tuning have been converted into internal data (****), refer to the following setting
example when making setting:
Setting example To slightly increase Pr. 90 value (5%)
When Pr. 90 is displayed "2516",
set 2642, i.e. 2516  1.05 = 2641.8, in Pr. 90 .
(The value displayed has been converted into a value for internal use. Hence, simple addition of a given value to the
displayed value has no significance.)
*2 Setting "9999" selects the IPM motor (MM-CF) constant.

If the current fluctuates after tuning, adjust the constant by referring to the induced voltage constant, which can
be found in the data sheet.

Parameter
Name Setting Range Setting Increments Initial Setting
Number
706 Induced voltage constant 0 to 5000, 9999 0.1(mV/(rad/s)) 9999 *
* Setting "9999" sets a calculated value based on tuning.

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1.4 Applied motor (Pr. 71)

Setting of the used motor selects the thermal characteristic appropriate for the motor.
Setting is necessary when using a constant-torque motor. Thermal characteristic of the electronic
thermal relay function suitable for the motor is set.
When PM sensorless vector control is selected, the motor constants (MM-CF etc.) necessary for control
are selected as well.

Parameter Initial
Name Setting Range Description
Number Value
0 to 8, 13 to 18, 30, 33,
Selecting the standard motor or constant-
34, 40, 43, 44, 50, 53, 54,
71 Applied motor 0 torque motor sets the corresponding
330, 333, 334, 8093,
motor thermal characteristic.
8094

(1) Set the motor to be used

Refer to the following list and set this parameter according to the motor used.
Electronic thermal relay
function operation
Pr. 71 Setting Motor characteristic
Constant
IPM
torque
330* IPM Motor MM-CF 
333* IPM Motor MM-CF 
Select "offline auto tuning setting"
8093 IPM Motor (other than MM-CF) 
334* IPM Motor MM-CF Auto tuning data can be read, 
8094 IPM Motor (other than MM-CF) changed, and set 
* The setting is available for FR-A721-11K or lower.

REMARKS
 When performing offline auto tuning, set "3, 7, 8, 13, 17, 18, 33, 43, 53, 333, 8093" in Pr. 71.
(Refer to page 7 for offline auto tuning)
 For the 5.5K and 7.5K, the Pr. 0 Torque boost and Pr. 12 DC injection brake operation voltage settings are automatically
changed according to the Pr. 71 setting as follows.
Standard Motor Setting Constant Torque
Pr.71 0, 2, 3 to 8, 40, 43, 44, Motor Setting
330, 333, 334, 8093, 8094 1, 13 to 18, 50, 53, 54
Pr. 0 3% 2%
Pr. 12 4% 2%

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1.5 Position control under PM sensorless vector control (Pr.800)

 In position control, speed commands, which are calculated to eliminate the difference between the
command pulse (parameter setting) and the estimated feedback pulse, are output to rotate the motor.
 This inverter can perform simple position feed by contact input, position control by inverter simple pulse
input, and position control by FR-A7AL pulse train input.

(1) Setting procedure

Set by IPM parameter initialization (Refer to page 4.)

Set Pr.998 IPM parameter initialization = "3003 or 3103" or (IPM

parameter initialization) to "3003"
"3003": Parameter (rotations per minute) settings for MM-CF IPM motor
"3103": Parameter (frequency) settings for MM-CF IPM motor

Select the control mode. (Pr.800)

Set Pr.800 = "13" (position control) or "14" (speed/position switchover) to
enable position control.

Selection of position command source. (Pr. 419)

Position command by contact Position command by inverter Position command from the
input pulse train input positioning module of the
Set "0" (initial value) in Pr. 419. Set "2" in Pr. 419. programmable controller
system (through FR-A7AL)
Set Pr. 419 = "1"
Setting of parameter for position feed Selection of command pulse
(Pr. 465 to Pr. 494). form (Pr. 428). Refer to the Instruction
(Refer to Chapter 4 of the Instruction (Refer to Chapter 4 of the Manual of FR-A7AL.
Manual (Applied).) Instruction Manual (Applied).)

Test run

As required
· Set the electronic gear. (Refer to Chapter 4 of the Instruction Manual (Applied))
· Setting of positioning adjustment parameter (Refer to Chapter 4 of the Instruction Manual (Applied))
· Gain adjustment of position control (Refer to Chapter 4 of the Instruction Manual (Applied))
CAUTION
 The carrier frequency is limited during PM sensorless vector control. (Refer to page 17.)
 Position deviation may occur due to motor temperature changes. In such case, shut off the inverter outputs, and restart.
 The Z-phase outputs cannot be made under PM sensorless vector control. When Pr.419 = "1" is set to send positioning
commands in pulses via a programmable controller positioning module and FR-A7AL, use the home position return
operation that does not require Z-phase signals.

(2) Select the control method

Pr.998 Pr.998 Setting Control Method Control Type Remarks
20 (Initial Value) Speed control 
9 Test operation 
3003, 3103 PM sensorless vector
(MM-CF) 13 control Position control 
14 Speed control/position MC signal ON: position control
control switchover MC signal OFF: speed control
* The operation for the setting of "20" is performed when a value other than "9, 13, or 14" is set.
REMARKS
 Perform position control under PM sensorless vector control only when using an MM-CF IPM motor with the low-speed range
high-torque characteristic enabled ( Pr.788 = "9999 (initial value)")
 Position control is performed on the assumption of 4096 pulses/motor rotation.
Positioning accuracy 100 pulses/rev (no load)

Refer to Chapter 4 of the Instruction Manual (Applied) for the detail of the position control.
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1.6 Low-speed range torque characteristics (Pr.788) t Å M P I s Åt

Torque characteristics in a low-speed range can be changed.

Parameter Initial Setting

Name Operation
Number Setting Range
Disables the low-speed range high-torque
0
788 Low-speed range torque characteristic (current synchronization operation).
9999
characteristics Enables the low-speed range high-torque
9999*
characteristic (high frequency superposition control)
* Current synchronization operation is always performed for IPM motors other than MM-CF, even if "9999" is set.

(1) When the low-speed range high-torque characteristic is enabled ("9999" (initial
value))
· The high frequency superposition control provides enough torque in the low-speed range operation.
· Refer to page 19 for the torque characteristics.

(2) When the low-speed range high-torque characteristic is disabled ("0")

· The current synchronization operation reduces much motor noise compared with the high frequency superposition control.
· The torque in a low-speed range is low. Use this setting for an operation with light start-up load.
· Refer to page 19 for the torque characteristics.

REMARKS
 Position control under PM sensorless vector control is not available when the current synchronization operation is selected.

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1.7 Setting the acceleration/deceleration time in the low-speed range

(Pr.791, Pr.792)

Parameter Initial
Name Setting Range Description
Number Value
Set the acceleration time in a low-speed
0 to 3600/360s* range (less than 10% of the rated motor
791 Acceleration time in frequency).
9999
low-speed range The acceleration time set in Pr.7 is applied.
9999 (When the second functions are enabled,
the settings are applied.)
Set the deceleration time in a low-speed
0 to 3600/360s* range (less than 10% of the rated motor
792 Deceleration time in frequency).
9999
low-speed range The deceleration time set in Pr.8 is applied.
9999 (When the second functions are enabled,
the settings are applied.)
* Depends on the Pr. 21 Acceleration/deceleration time increments setting. The initial value for the setting range is "0 to 3600s" and the setting
increments is "0.1s".

If torque is required in a low-speed range (less than 10% of the rated motor frequency), set Pr.791 Acceleration time in
low-speed range and Pr.792 Deceleration time in low-speed range settings higher than the Pr.7 Acceleration time and Pr.8
Deceleration time settings so that the mild acceleration/deceleration is performed in the low-speed range. Such a setting
is especially effective when the low-speed range high-torque characteristic is disabled (Pr.788 = "0"). (For an operation
with second acceleration/deceleration times, set the acceleration/deceleration times longer than the second
acceleration/deceleration times.)
frequency (Hz)
Output

Low-speed range
(rated motor frequency/10)

Time
Acceleration time Deceleration time
in low-speed range in low-speed range
Slope set by Pr. 791 Acceleration time Deceleration time Slope set by Pr.792
Slope set by Pr.7 Slope set by Pr.8

REMARKS
 Set Pr.791 higher than Pr.7, and Pr.792 higher than Pr.8. If set as Pr.791 < Pr.7, the operation is performed as Pr.791 = Pr.7. If
set as Pr.792 < Pr.8, the operation is performed as Pr.792 = Pr.8.
 Refer to page 6 for the rated motor frequency of MM-CF.

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1.8 Braking operation selection for vector control, PM sensorless vector

control (Pr.802) Vector
The pre-excitation operation selection is available under PM sensorless vector control.
• Select the braking operation when the pre-excitation is performed with Pr.802 Pre-excitation selection from either
zero speed control or servo lock.

Pre-
Pr.802 setting Description
excitation
It will try to maintain 0 r/min so the motor shaft will not rotate even when a load is
0 Zero speed applied. However, it will not return to its original position when the shaft moves due to
(initial value) control external force.
It will not perform position control, but operate only with the speed control.
It will try to maintain the position of the motor shaft even if a load is applied. When the
shaft moves due to external force, it will return to its original position after the external
1 Servo lock force is removed.
To perform the position control, this loop gain can be adjusted with Pr.422 Position
control gain.

• The relation between the DC injection brake operation and pre-excitation operation is as follows.
Control X13-ON
Control method Pr.802 Pr.850 Deceleration stop LX-ON
mode (Pr.11 = "8888")
V/F control ― ― ― DC injection brake ― DC injection brake
Advanced magnetic flux
― ― ― DC injection brake ― DC injection brake
vector control
― 0 DC injection brake
Zero speed Zero speed
― 1 Zero speed
Speed
Magnetic flux decay
― 2 Zero speed Zero speed
Real sensorless vector output shutoff
control ― 0 DC injection brake
Zero speed Zero speed
― 1 Zero speed
Torque
Magnetic flux decay
― 2 Zero speed Zero speed
output shutoff
0 ― Zero speed Zero speed Zero speed
Speed
1 ― Servo lock Servo lock Servo lock
Vector control
Torque ― ― Zero speed Zero speed Zero speed
Position ― ― ― Servo lock ―
PM sensorless vector
control,
Speed ― ― DC injection brake ― ―
low-speed range high-
torque mode disabled
PM sensorless vector 0 ― Zero speed Zero speed ―
control, Speed
1 ― Servo lock Servo lock ―
low-speed range high-
torque mode enabled Position ― ― ― Servo lock ―

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1.9 DC injection brake of the PM sensorless vector control

DC injection brake operation frequency will be fixed to 0 Hz at the time of PM sensorless vector control (low-speed
range high-torque mode disabled).
<When the low-speed range high-torque characteristic is disabled (Pr.788 = "0")>
Operation example when DC injection Operation example when DC injection
brake is exercised (Pr. 11 0) brake is not exercised (Pr. 11 = 0)
frequency

frequency
Output

Output
Pr. 10
(Hz) DC injection brake (Hz) Coasting frequency time
is exercised at 0Hz.
Time Time
Motor coasting
DC injection Time DC injection Time
brake brake
Pr. 11 Operation time

REMARKS
 The X13 signal is disabled during PM sensorless vector control.
 Pr.12 DC injection brake operation voltage is invalid during PM sensorless vector control.

1.10 PM sensorless vector control specification

Item Specification
Sensorless vector control
Control method Low-speed range: Control method in a low-speed range can be selected by parameter (high frequency
superposition control (initial setting) / current synchronization operation)
High frequency
150% (Used in combination with MM-CF)
superposition control
Starting torque
Current synchronization
50%
operation
High frequency
1:1000 (Use a one rank higher inverter for the ratio of 1:1000)
Speed control superposition control
range Current synchronization
1:10
operation
High frequency
Possible (Use a one rank higher inverter for zero-speed 200%)
superposition control
Zero speed
Current synchronization
Not available
operation
High frequency 6kHz (Pr.72 = "0 to 9"), 10kHz (Pr.72 = "10 to 13"), 14kHz (Pr.72 = "14, 15")
superposition control (6kHz in a low-speed range of 10kHz or higher. 2kHz is not selectable.)
Carrier frequency 2kHz (Pr.72 = "0 to 5"), 6kHz (Pr.72 = "6 to 9"), 10kHz (Pr.72 = "10 to 13"), 14kHz
Current synchronization
(Pr.72 = "14, 15")
operation
(6kHz in a low-speed range of 10kHz or higher.)
High frequency
Possible
superposition control
Position control
Current synchronization
Not available
operation
Offline auto tuning
Possible
for an IPM motor
Mitsubishi MM-CF series IPM motors (3.5 to 7.0kW)
Applicable motor
IPM motors other than MM-CF (tuning required) (no capacity limit)

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1.11 Motor specification

(1) Specifications
Motor 2000r/min Series
MM-CF352(C)(B) MM-CF502(C) MM-CF702(C)
Item
Compatible - 5.5K 7.5K
FR-A721-
inverter 5.5K *6 7.5K *6 11K *6
Continuous Rated output [kW] 3.5 5.0 7.0
characteristics
*1 Rated torque [N•m] 16.70 23.86 33.41
Rated speed *1 [r/min] 2000
Max. speed [r/min] 3000
Instantaneous permissible speed
3450
[r/min]
Max. torque [N•m] 33.41 47.73 66.82
Inertia moment J *5 85.6
120.0 160.0
[10-4kg•m2] (89.0)
Recommended ratio of load
inertia moment to motor shaft 50 times max.
inertia moment *2
Rated current [A] 12.5 20.5 27.0
Insulation rank Class F
Totally-enclosed, self-cooling
Structure
(protective system:IP44 *3, IP65 *3, *4)
Surrounding air
-10C to +40C (non-freezing)  90%RH or less (non-
temperature and
condensing)
humidity
Storage
-20C to +70C (non-freezing)  90%RH or less (non-
Environmental temperature and
condensing)
conditions humidity
Indoors (no direct sunlight), free from corrosive gas, flammable
Ambience
gas, oil mist, dust and dirt
Altitude Max. 1000m above sea level
Vibration X: 9.8m/s2, Y: 24.5m/s2
Mass *5 [kg] 19 (28) 27 36
*1 When the power supply voltage drops, we cannot guarantee the above output and rated speed.
*2 When the load torque is 20% of the motor rating. The permissible load inertia moment ratio is smaller when the load torque is larger.
Consult us if the load inertia moment ratio exceeds the above value.
*3 This does not apply to the shaft through portion.
*4 Value for MM-CF2C.
*5 The value for MM-CF2B is indicated in parentheses.
*6 Applicable one-rank higher inverters for the lifted low-speed range torque operation.

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(2) Torque characteristics

Low-speed
range high-
Torque characteristic
torque
characteristic
With one rank higher inverter
Torque % Torque %
Instantaneous Instantaneous
(3s) operation region (3s) operation region
200 200
Short duration Short duration
(60s) operation region (60s) operation region
Enabled 150 150
Continuous Continuous
(Pr.788 = 120 operation region operation region
100 100
“1”)

100 2000 3000 100 2000 3000

Speed r/min Speed r/min
* Zero speed up to a 150% instantaneous output torque

Torque %
Instantaneous
(3s) operation region
200
Short duration
(60s) operation region
Disabled 150 Continuous
(Pr.788 = operation region
“0”) 100

50

200 2000 3000

Speed r/min

2 Speed detection hysteresis (Pr.870)

This function prevents chattering of the speed detection signals.

Parameter Initial Setting

Name Description
Number Value Range
Speed detection
870 0Hz* 0 to 5Hz Set the hysteresis width for the detected frequency.
hysteresis
* Performing IPM parameter initialization changes the settings. (Refer to page 6)

Output
frequency (Hz)
 When an output frequency fluctuates, the following
signals may repeat ON/OFF (chatters).
Pr.42  Up to frequency (SU)
Pr.870
 Speed detection (FB, FB2, FB3)
 Low speed output (LS)
Setting hysteresis to the detected frequency prevents
FB
OFF ON OFF chattering of these signals.
ON ON
Example of the speed detection signal (FB)

REMARKS
 Setting a higher value to this parameter slows the response of frequency detection signals (SU, FB, FB2, FB3, and LS).
 The ON/OFF logic for the LS signal is opposite for the FB signal.

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3 Extended parameter setting ranges (Pr. 263, Pr. 505, Pr. 885)

The setting ranges of the following parameters have been extended.

(1) Power failure-time deceleration-to-stop function

Parameter Initial Setting
Name Description
Number Value Range
When output frequency ≥ Pr. 263
Decelerate from the speed obtained from output
0 to 400 Hz frequency minus Pr. 262.
Subtraction starting When output frequency < Pr. 263
263 60 Hz
frequency Decelerate from output frequency
Decelerate from the speed obtained from output
9999
frequency minus Pr. 262.

(2) Speed display and speed setting

Parameter Initial Setting
Name Description
Number Value Range
Speed setting
505 60 Hz 1 to 400 Hz Set the reference speed for Pr. 37.
reference

(3) Regeneration avoidance function

Parameter Initial Setting
Name Description
Number Value Range
Regeneration Set the limit value of frequency which rises at
0 to 30 Hz
avoidance activation of regeneration avoidance function.
885 6 Hz
compensation
frequency limit value 9999 Frequency limit invalid

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4 Break point setting for droop control (Pr.994, Pr.995)

Magnetic flux Sensorless Vector

Set Pr.994 and Pr.995 to have a break point on a droop compensation frequency line. Setting a break point
allows the inverter to raise the droop compensation frequency for light-load (no load) operation without
raising it for heavy-load operation.

Parameter Initial
Name Setting Range Description
Number Value
Set the changing droop amount as a percentage
0.1 to 100%
994 Droop break point gain 9999 value of the rated motor frequency.
9999 No function
Set the torque where the droop amount is
995 Droop break point torque 100% 0.1 to 100%
changed.

Increased amount of the

droop compensation Frequency
frequency
Droop break point gain
(Pr.994)
Rated frequency
Droop gain
Droop compensation (Pr.286)
frequency
Droop break point torque
(Pr.995)

-100% 0 100% Torque

CAUTION
The droop break point function is disabled when any of the following conditions is met. (Linear compensation by Pr.286 is
performed.)
 Pr.995 = "100% (initial value)"
 Pr.286 < Pr.994
 Pr.994  Pr.995  Pr.286 / 100%

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5 Setting multiple parameters as a batch (Pr.999)

 Parameter settings are changed as a batch. Those include communication parameter settings for the
Mitsubishi human machine interface (GOT) connection, rated frequency settings of 50Hz/60Hz, and
acceleration/deceleration time increment settings.
 Multiple parameters are changed automatically. Users do not have to consider each parameter
number. (Automatic parameter setting mode)

Parameter Initial
Name Setting Range Description
Number Value
10 GOT initial setting (PU connector)
11 GOT initial setting (RS-485 terminals)
20 50Hz rated frequency
21 60Hz rated frequency
999 *1 Automatic parameter setting 9999 *2 Acceleration/deceleration time
30
(0.1s increment)
Acceleration/deceleration time
31
(0.01s increment)
9999 No action
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.
*2 The read value is always "9999."
(1) Automatic parameter setting (Pr.999)
 Select which parameters to be automatically set, and set that to Pr. 999. Multiple parameter settings are
changed automatically. Refer to page 23 for the list of parameters that are changed automatically.
Pr.999 Operation in the automatic parameter
Description
setting setting mode
Automatically sets the communication parameters for the GOT
10 (AUTO)  (GOT) Write "1"
connected with a PU connector
Automatically sets the communication parameters for the GOT
11 —
connected with RS-485 terminals
20 50Hz rated frequency Sets the related parameters of the (AUTO)  (F50) Write "1"
rated frequency according to the power
21 60Hz rated frequency supply frequency —

30 0.1s increment Changes the setting increments of —

acceleration/deceleration time
parameters without changing
31 0.01s increment acceleration/deceleration settings (AUTO)  (T0.01) Write "1"

REMARKS
If the automatic setting is performed, the selected settings including the changed parameter settings will be changed.

(Lit)

<Automatic parameter setting mode>

Always displayed as "0" when the
parameter is read.
Write "1" to select the automatic
setting. Pressing in the "0"
setting displays the next Pr.

Flickers

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(2) List of automatically-set parameters

The following tables show which parameters are changed in each of the automatic parameter settings.
CAUTION
 If the automatic setting is performed with Pr.999 or the automatic parameter setting mode, the listed settings including
the changed parameter settings (changed from the initial setting) will be automatically changed. Before performing
the automatic setting, confirm that changing the listed parameters will not cause any problem.

 GOT initial setting (PU connector) (Pr.999 = "10")

Initial
Parameter Name Automatically set to Refer to
value
79 Operation mode selection 0 1
118 PU communication speed 192 192
119 PU communication stop bit length 1 10
120 PU communication parity check 2 1
Number of PU communication
121 1 9999
retries Chapter 4 of the
PU communication check time Instruction Manual
122 9999 9999 (Applied)
interval
PU communication waiting time
123 9999 0ms
setting
124 PU communication CR/LF selection 1 1
Communication startup mode
340 0 0
selection

REMARKS
Always perform an inverter reset after the initial setting.

 GOT initial setting (RS-485 terminals) (Pr.999 = "11")

Initial
Parameter Name Automatically set to Refer to
value
79 Operation mode selection 0 0
332 RS-485 communication speed 96 192
RS-485 communication stop bit
333 1 10
length
RS-485 communication parity check
334 2 1
selection
335 RS-485 communication retry count 1 9999
Chapter 4 of the
RS-485 communication check time
336 0s 9999 Instruction Manual
interval
(Applied)
RS-485 communication waiting time
337 9999 0ms
setting
Communication startup mode
340 0 1
selection
RS-485 communication CR/LF
341 1 1
selection
549 Protocol selection 0 0

REMARKS
Always perform an inverter reset after the initial setting.

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 Rated frequency (Pr. 999 = "20(50Hz), 21(60Hz)")

Pr.999 = "20"
Parameter Name Initial value Pr.999 = "21" Automatic parameter Refer to
setting
3 Base frequency 60Hz 60Hz 50Hz
Multi-speed setting (high
4 60Hz 60Hz 50Hz
speed)
Acceleration/deceleration
20 60Hz 60Hz 50Hz
reference frequency
37 Speed display 0 0
Frequency monitoring
55 60Hz 60Hz 50Hz
reference
Stall prevention operation
66 60Hz 60Hz 50Hz
reduction starting frequency Chapter 4 of
Third output frequency the Instruction
116 60Hz 60Hz 50Hz Manual
detection
Terminal 2 frequency setting (Applied)
125 (903) 60Hz 60Hz 50Hz
gain frequency
Terminal 4 frequency setting
126 (905) 60Hz 60Hz 50Hz
gain frequency
Subtraction starting
263 60Hz 60Hz 50Hz
frequency
Power failure deceleration
266 60Hz 60Hz 50Hz
time switchover frequency
Frequency for maximum
386 60Hz 60Hz 50Hz
input pulse
% setting reference FR-A7NL
390* 60Hz 60Hz 50Hz
frequency manual
505 Speed setting reference 60Hz 60Hz 50Hz Chapter 4 of
808 Forward rotation speed limit 60Hz 60Hz 50Hz the Instruction
Terminal 1 gain frequency Manual
C14 (918) 60Hz 60Hz 50Hz (Applied)
(speed)
* This parameter can be set when the option FR-A7NL is mounted.

 Acceleration/deceleration time increment (Pr.999 = "30(0.1s) or 31(0.01s)")

Pr.999 = "31"
Initial set
Parameter Name Pr.999 = "30" Automatic parameter Refer to
increment
setting
7 Acceleration time 0.1s 0.1s 0.01s
8 Deceleration time 0.1s 0.1s 0.01s
Jog acceleration/deceleration
16 0.1s 0.1s 0.01s
time
Acceleration/deceleration
21 1 0* 1*
time increments
Second acceleration/
44 0.1s 0.1s 0.01s
deceleration time
45 Second deceleration time 0.1s 0.1s 0.01s Chapter 4 of
Third acceleration/ the Instruction
110 0.1s 0.1s 0.01s Manual
deceleration time
111 Third deceleration time 0.1s 0.1s 0.01s (Applied)
Power-failure deceleration
264 0.1s 0.1s 0.01s
time 1
Power-failure deceleration
265 0.1s 0.1s 0.01s
time 2
Acceleration time in low-
791 0.1s 0.1s 0.01s
speed range
Deceleration time in low-
792 0.1s 0.1s 0.01s
speed range
* The set value is changed for Pr. 21.

REMARKS
 When a parameter is set as the acceleration/deceleration time (0.1s), the 0.01s increment is dropped.
 When a parameter is set as the acceleration/deceleration time (0.01s), the parameters are limited at the maximum
value of the parameter setting range. For example, Pr.7 = "361.0s" when 0.1s increment is selected, and Pr.7 =
"360.00s" when 0.01s increment is selected.

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6 Setting to disable E.OLT during stop-on-contact control

You can set the following parameter so that E.OLT (stall prevention stop) will not be activated during
stop-on-contact control.

Parameter Initial Setting

Name Description
Number Value Range
0 Normal operation
1 Stop-on-contact control
Stop-on contact/ 2 Load torque high speed frequency control
load torque high-
270 0 3 Stop-on-contact+load torque high speed frequency control
speed frequency
control selection 11 Stop-on-contact control E.OLT invalid under
Stop-on-contact+load torque high speed stop-on-contact
13 control
frequency control

7 Acceleration/deceleration time switching frequency (Pr. 147 )

When output frequency reaches Pr. 147 Acceleration/deceleration time switching frequency or higher, the
acceleration/deceleration time automatically switches to Pr. 44 Second acceleration/deceleration time and
Pr. 45 Second deceleration time settings.
The RT signal is not necessary for switching the acceleration/deceleration time.

Parameter Name Initial Value Setting Range Description

Number
Acceleration/ Frequency when automatically switching to the
0 to 400Hz acceleration/deceleration time of Pr. 44 and Pr. 45.
147 deceleration time 9999
switching frequency 9999 No function

• When the RT signal (X9 signal) turns ON, the acceleration/deceleration time switches to the second (third) acceleration/
deceleration time even when the output frequency has not reached the Pr. 147 setting. Priority of switching is
X9 signal > RT signal > Pr. 147 setting.
• If the Pr. 147 setting is lower than Pr. 10 DC injection brake operation frequency or Pr. 13 Starting frequency setting, the
acceleration/deceleration time switches to the Pr. 44 (Pr. 45) setting when the output frequency exceeds the Pr. 10 or Pr.
13 setting.
Pr. 147 Setting Acceleration/Deceleration Time Description
9999 (initial value) Pr. 7, Pr. 8 No automatic switching of the
acceleration/deceleration time
Second acceleration/deceleration
0.00Hz Pr. 44, Pr. 45
time from a start
Output frequency Pr. 147
0.01Hz Pr. 147 Set : Pr. 7, Pr. 8 Acceleration/deceleration time
frequency Pr. 147 Output frequency automatic switching
: Pr. 44, Pr. 45
No automatic switching, since
Set frequency Pr. 147 Pr. 7, Pr. 8 output frequency will not reach the
switching frequency

Output frequency
(Hz)

Set
frequency

Pr. 147
setting
Time
Slope set Slope set Slope set Slope set
by Pr. 7 by Pr. 44 by Pr. 44 by Pr. 8
• Switching frequency for each control method
Control Method Switching frequency
V/F control Output frequency
Advanced magnetic flux vector control Output frequency before the slip compensation
Real sensorless vector control Estimated speed converted as frequency
Vector control, encoder feedback control Actual motor speed converted as frequency

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8 USB automatic recognition (Pr. 551 PU mode operation command source

selection = "9999")
FR-A701 can automatically recognize the USB connection and switch the command source during PU operation
mode.

Parameter Initial Setting

Name Range Description
Number Value
RS-485 terminals are the command source when PU operation
1 mode.
PU mode operation 2 PU connector is the command source when PU operation mode.
551 * command source 9999 3 USB connector is the command source when PU operation mode.
selection
USB automatic recognition
9999 Normally, the PU connector is the command source. When USB is
connected, the USB connector is the command source.
* This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.
When a communication option is installed, parameter setting is always enabled.

9 Modbus-RTU communication stop bit length selection (Pr. 333, Pr.

334)
The stop bit length can be selected for the Modbus-RTU communication.
• When parity checking is not performed (Pr. 334 RS-485 communication parity check selection = "0"), the stop bit length
can be selected with Pr. 333 RS-485 communication stop bit length.

Parameter Name Initial value Setting Description

number range
0 Stop bit length 1 bit
RS-485 communication 1 Stop bit length 2 bits
333
stop bit length
1 Valid when Pr. 334 = "0"
10 Stop bit length 1 bit
11 Stop bit length 2 bits
Without parity check
0
Stop bit length according to
RS-485 communication With odd parity
334 2 1
parity check selection Stop bit length 1 bit
With even parity
2
Stop bit length 1 bit

10 Plug-in option compatibility

(1) FR-A7AZ
The motor temperature detection signal (Y55) and the motor temperature monitor output of the plug-in option FR-A7AZ is
supported. For the details of FR-A7AZ, refer to the Instruction Manual of FR-A7AZ.
(2) FR-A7AD
The plug-in option FR-A7AD is supported. The 0V voltage calibration request signal (X83) and the during 0V calibration
signal (Y83) can be used for 0V calibration of the high speed analog output. For the details of FR-A7AD, refer to the
Instruction Manual of FR-A7AD.
(3) FR-A7NCE
For the details of FR-A7NCE, refer to the Instruction Manual of FR-A7NCE.
The communication option FR-A7NCE is supported. The following monitor items are assigned to the remote registers
RWrn+71 and RWrn+72. (Refer to page 40 of the Instruction Manual of FR-A7NCE.)
Description
Address
Upper 8 bits Lower 8 bits
RWrn+71 Output power (with regenerative display)
RWrn+72 Cumulative regenerative power

For the details of FR-A7NCE, refer to the Instruction Manual of FR-A7NCE

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(4) FR-A7NF
The communication option FR-A7NF is supported. When the FR-A7NF is used for the FR-A701 series, the inverter is oper-
ated in the PU operation interlock (X12 signal) specification. For the details of FR-A7NF, refer to the Instruction Manual of
FR-A7NF.
(5) FR-A701 dedicated monitor code / fault code for communication options
The FR-A701 dedicated monitor codes and the fault codes when the communication options are used are as shown below.
• Monitor code
Code Number
Monitor Description Increments
FR-A7NCE FR-A7NF
H41 H10000210 Output power (with regenerative display) 0.1kW
H42 H10000212 Cumulative regenerative power 1kWh

• Fault code (fault data)

Fault code (data) Fault indication Fault name
(description)
HF4 E.4 Fault 4 (Converter overcurrent)
HF8 E.8 Fault 8 (Power supply fault)
HFA E.10 Fault 10 (Converter transistor protection thermal operation (electronic thermal))
HFF E.15 Fault 15 (Convertor circuit fault)

11 Regenerative operation stop signal (X75 signal)

The converter operation can be stopped by turning ON the X75 signal.

Parameter Name Initial Initial signal Setting Range

Number Value
0 to 9, 12 to 20, 22 to 28, 42 to
STF terminal function
178 selection 60 STF (Forward rotation command) 44, 60, 62, 64 to 69, 74, 75,
9999
STR (Reverse rotation 0 to 9, 12 to 20, 23 to 28, 42 to
STR terminal function
179 61 44, 61, 62, 64 to 69, 74, 75,
selection command) 9999
RL terminal function RL (Low-speed operation
180 0
selection command)
RM terminal function RM (Middle-speed operation
181 1
selection command) 0 to 9, 12 to 20, 22 to 28, 42 to
RH terminal function RH (High-speed operation 44, 62, 64 to 69, 74, 75, 9999
182 2
selection command)
183 RT terminal function 3 RT (Second function selection)
selection
AU terminal function 0 to 9, 12 to 20, 22 to 28, 42 to
184 4 AU (Terminal 4 input selection)
selection 44, 62 to 69, 74, 75, 9999
JOG terminal function
185 selection 5 JOG (Jog operation selection)

186 CS terminal function 6 CS (Electronic bypass function)

selection
MRS terminal function 0 to 9, 12 to 20, 22 to 28, 42 to
187 24 MRS (Output stop)
selection 44, 62, 64 to 69, 74, 75, 9999
STOP terminal function STOP (Start self-holding
188 25
selection selection)
RES terminal function
189 selection 62 RES (Inverter reset)

• The converter operation stops when the X75 signal is turned ON during an inverter stop.
• When the regenerative status is entered during a converter stop, the protective function (E.OV) is activated due to
overvoltage, and the inverter trips.
• To apply the X75 signal status to the converter operation, it is necessary to stop the inverter.

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Power/regenerative driving status Power Regenerative

Converter operation Enabled Disabled

Inverter status During stop During running Output shutoff

X75 OFF ON

STF OFF ON

Bus voltage Protective function activation

Time

REMARKS
 If the X75 signal is turned ON while the inverter is running and remains ON, the X75 signal will be valid after the
inverter stops.
 If the inverter is reset by turning ON the RES signal while the converter operation is stopped by the X75 signal, the
converter stopped status is retained even while the reset is being processed.

12 Support for the PU operation mode of the brake sequence

function
The brake sequence function is enabled when either the PU operation mode or the External/PU combined operation mode
2 is selected.

13 Parameter for manufacturer setting

• Pr. 414 to Pr. 417, Pr. 498, Pr. 506 to Pr. 515 are parameters for manufacturer setting. Do not set.
• The setting value "50" of Pr. 178 to Pr. 189 (input terminal function selection) is for manufacturer setting. Do not set.

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 INVERTER
FR-A701
INSTRUCTION MANUAL (Applied)

FR-A701
FR-A721-5.5K to 55K
FR-A741-5.5K to 55K

INVERTER
OUTLINE
1

WIRING
2

PRECAUTIONS FOR USE

OF THE INVERTER 3

INSTRUCTION MANUAL (Applied) PARAMETERS

4

PROTECTIVE FUNCTIONS
5
HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

PRECAUTIONS FOR
MAINTENANCE AND INSPECTION 6

SPECIFICATIONS
IB(NA)-0600337ENG-D (1103)MEE Printed in Japan Specifications subject to change without notice.
7
D