Frequency inverter user manual

3-1 Standard wiring diagram of the inverter

 Frequency inverter user manual

4-1 Control circuit terminal description

Classific
mark Terminal name Terminal description and factory settings
ation
Multi-function input terminal Factory setting: 1 forward/stop
X1
1
Multi-function input terminal Factory setting: 2 reverse/stop
X2
Multi- 2
function Multi-function input terminal Factory setting: 3 three-wire control mode
X3
input 3
terminal Multi-function input terminal Factory setting: 4 multi-stage speed one
X4
4
Common terminal Multi-function input common terminal, and
COM
corresponding +24V power reference ground
AI1 Analog input 1 0~10V input
AI2 Analog input 2 0~10V/0~20mA input (Dip switch or jumper switch)
Analog Power supply for analog +10V DC 10mA (potentiometer 3~5K)
input +10V
quantity setting
Analog reference ground Analog input and output reference ground
GND
corresponding to +10V
Multi-function output terminal Open collector output. Factory setting: 1 running
Y1
1 output ON
Open collector output. Factory setting: 2 positive
Multi-function output
Multi- Y2 direction running output ON
terminal 2
function (100 series does not have this terminal)
output ROA
ROB ROA-ROB normally closed
Relay output Factory setting: inverter fault output
ROA-ROC normally open
ROC
Analog Analog output terminal 0~10V/0~20mA output (Dip switch or jumper
output AO switch)
GND is the reference ground
power +24V power supply +24V DC 100mA The corresponding COM is the
supply +24V
power ground.
commu 485+ 485 signal positive end Standard MODBUS RS-485 serial communication
nication 485 signal negative terminal interface
485-
Please use twisted pair or shielded wire
 Frequency inverter user manual

6. Function parameter list

“〇”：Indicatesthat this parameter can be changed while the inverter is running or stopped when P0.00=0.
“●”： Indicates that this parameter cannot be changed while the inverter is running.
“×”：Indicates that this parameter is only the actual detected record value and cannot be changed.

P0 Basic function
MODBUS
Function Chang
Name Parameter description Default address
Code e
(decimal)
0: Allow parameter setting (except with "×")
Parameter setting 1: Prohibit parameter setting (except P0-00)
P0-00 0 ● 1000
mode 99: restore factory value

0: Frequency digital setting (P0-03)

1: Panel potentiometer
2: External AI1
3: External AI2
4: PID adjustment setting
5: Digital setting, UP/DOWN rate press P5-20 to
increase or decrease
6: Digital setting, UP/DOWN rate is added or subtracted
Frequency setting according to P5-20, and the frequency returns to zero
after stopping (not power-off) 1 ● 1001
method
P0-01 7: Communication setting (corresponding to MODBUS
communication address 1003)
※Digital setting is suitable for encoder keyboard or
speed regulation via keyboard UP/DOWN keys, and the
value of P0-03 can also be modified directly.
※AI2 input can be connected to voltage signal (0～10V)
or current signal (0～20mA), which can be switched by
dial switch or jumper on the control panel.
※When the simple PLC program (P8-00) is valid, the PLC program operation has priority. When the multi-stage
speed (terminal setting) is valid, the multi-stage speed has priority over (P0-01).
The priority order of frequency reference is: simple PLC program>multi-step speed>(P0-01)
Start-stop control 0: keyboard control
method 1: External terminal control, keyboard STOP key is
invalid
P0-02 0 ● 1002
2: External terminal control, keyboard STOP key is valid
3: Controlled by communication command word
(corresponding to MODBUS communication address 200)
Frequency digital 0.0 Hz ～upper limit frequency (P0-09)
P0-03 50.0Hz ○ 1003
setting
P0-04 Acceleration time 0 0.1s～3600.0s Depending ○ 1004
P0-05 Deceleration time 0 0.1s～3600.0s Depending ○ 1005
Running direction 0: Default direction 1: Opposite to the default direction
P0-06 0 ● 1006
setting
P0-07 Anti-reverse setting 0: Reverse is allowed 1: Reverse is forbidden 0 ● 1007
P0-08 Highest frequency Upper limit frequency (P0-09)～400.0Hz 60.0 Hz ● 1008
P0-09 Upper limit frequency Lower limit frequency (P0-10) ~ highest frequency (P0-08) 50.0Hz ● 1009
P0-10 Lower limit frequency 0.0Hz～upper limit frequency (P0-09) 0.0Hz ● 1010
P0-11 Jog frequency 0.0Hz～upper limit frequency (P0-09) 5.0Hz ○ 1011
P0-12 Carrier frequency 1～16KHz Depending ● 1012
Carrier frequency 0: Fixed PWM mode 1: Random PWM mode
P0-13 0 ● 1013
adjustment
Digital setting 0: Inverter power-off storage 1: Inverter power-off does not
P0-14 0 ○ 1014
frequency storage save
MODBUS local 1～127
P0-15 1 ○
address
 Frequency inverter user manual

P1 Keyboard and display parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
Default display at boot 0: Setting frequency (Hz)
1: Output frequency (Hz)
2: Output current (C)
3: Bus voltage (V)
4: Motor speed (r/min)
5: Output motor rated current percentage (%)
6: IGBT temperature (℃)
7: output voltage (V)
8: output power (KW)
P1-00 9: count value (times) 0 ○ 1018
10: PI given value
11: PID feedback value
12: Cumulative running time (hours)
13: Input terminal status
14: Output terminal status
15: Inverter capacity (KW)
※: The front of the display is the code, and the back is the
specific content, which can be changed with the current
status; it can be viewed through the "PRG" key cycle.
Display information 0: Display 0～3 information 1: Display 0～7 information
P1-01 settings 2: Display 0～11 information 3: Display 0～15 1 ○ 1019
information
Speed display 0.1～60.0
P1-02 29.0 ○ 1020
coefficient
JOG/REV function 0: Jog running, disconnected to stop
P1-03 setting 1: Forward/reverse switch, the running direction changes 0 ● 1021
after pressing

P2 Start-stop mode parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
P2-00 Start method 0: Direct start 1: DC braking first and then start 0 ● 1025
P2-01 Start frequency 0.0～10.0Hz 0.5 Hz ● 1026
P2-02 Start hold time 0.0～50.0 s 0.0s ● 1027
Braking current before 0～150.0% (valid when P2-00=1)
P2-03 50.0% ● 1028
starting
Braking time before 0～50.0s
P2-04 0.0s ● 1029
starting
Stop mode 0: Free stop 1: Decelerate to stop
P2-05 2: Decelerate first and then stop by DC braking 1 ● 1030

Starting frequency of 0.0～10.0Hz

P2-06 2.0Hz ● 1031
stop braking
P2-07 Stop braking current 0～150.0% 50.0% ● 1032
P2-08 Stop braking time 0～50.0s 0.0s ● 1033
Forward and reverse 0.0～50.0 s (forward and reverse direction
P2-09 dead time 0.2s ● 1034
commutation interval time)
Lower limit frequency 0: Run at lower frequency limit 1: Stop (run signal
operation mode failure)
P2-10 0 ● 1035
2: Standby, the running frequency is 0 (the running
signal is valid)
 Frequency inverter user manual

P3 Motor parameters
MODBUS
Functio Chan
Name Parameter description Default address
n Code ge
(decimal)
Motor rated P4-05～400.0Hz
P3-00 50.0Hz ● 1038
frequency
P3-01 Motor rated voltage 200～440V Depending ● 1039
P3-02 Motor rated current 0.1～999.9A Depending ● 1040
P3-03 Motor rated power 0.1～630.0KW Depending ● 1041
P3-04 Motor rated speed 1～36000rpm 1440rp ● 1042
Motor no-load 0.1～999.9A Depending
P3-05 ● 1043
current
Motor stator 0.001～50.000Ω Depending
P3-06 ● 1044
resistance
Motor magnetizing 0.1～5000.0mH Depending
P3-07 ● 1045
inductance

P4 V/F control parameter

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
V/F curve setting 0: Normal V/F 1: 2nd power down V/F
P4-00 2: 3rd power drop V/F 3: High starting torque V/F 0 ● 1051
4: Self-setting V/F

V/F intermediate 0.0Hz～P4-03

P4-01 1.0Hz ● 1052
frequency 1
V/F Intermediate 0～Motor rated voltage (P3-01)
P4-02 5V ● 1053
voltage 1
V/F intermediate P4-01～P4-05
P4-03 5Hz ● 1054
frequency 2
V/F Intermediate 0～Motor rated voltage (P3-01)
P4-04 25V ● 1055
voltage 2
V/F intermediate P4-03～rated frequency of motor (P3-00)
P4-05 25Hz ● 1056
frequency 3
V/F Intermediate 0～Motor rated voltage (P3-01)
P4-06 115V ● 1057
voltage 3
P4-07 Torque boost 0.0～15.0% Depending ● 1058
P4-08 Slip compensation 0.0～10.0Hz 0.0 Hz ● 1059
(AVR) adjustment 0: Invalid 1: Valid for the whole process 2: Only
P4-09 function 0 ● 1060
valid for deceleration
P4-10
Energy-saving 0: Invalid 1: Energy-saving operation 0 ● 1061
operation

P5 External input function parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
P5-00 AI1 lower limit 0～10.00V 0.05V ○ 1070
AI1 lower limit 0～100.0% 1071
P5-01 0.0% ○
corresponding setting
P5-02 AI1 upper limit AI1 lower limit ～10.00V 10.00V ○ 1072
AI1 upper limit 0～100.0% 1073
P5-03 100.0% ○
corresponding setting
P5-04 AI1 input filter time 0.0s～10.0s 0.1s ○ 1074
AI2 lower limit 0.00V～10.00V 1075
P5-05 ※When connecting 4～20mA externally, please set P5- 0.05V ○
05=2.0, corresponding to 4mA
P5-06 AI2 lower limit 0～100.0% 0.0% ○ 1076
 Frequency inverter user manual
corresponding setting

P5-07 AI2 upper limit AI2 lower limit ～10.00V 10.00V ○ 1077
AI2 upper limit 0～100.0% 1078
P5-08 100.0% ○
corresponding setting
P5-09 AI2 input filter time 0.0s～10.0s 0.1s ○ 1079
Multi-function input 0: No function 1: Forward rotation 2: Reverse rotation 1080
P5-10 1 ●
terminal X1 3: Three-wire control 4: Multi-stage speed one
Multi-function input 5: Multi-stage speed two 6: Multi-stage speed three 1081
P5-11 2 ●
terminal X2 7: Jog forward rotation 8: Jog reverse rotation
Multi-function input 9: Frequency increase 10: Frequency decrease 1082
P5-12 11: Acceleration and deceleration time selection one 3 ●
terminal X3
Multi-function input 12: Acceleration and deceleration time selection two 1083
P5-13 13: acceleration or deceleration pause 4 ●
terminal X4
Multi-function input 14: External fault input 1084
P5-14 16: Free stop 15: Fault reset 5 ●
terminal X5
Multi-function input 17: External counting input 18: Counter clear reset 1085
P5-15 19: Start program operation 20: Program operation 6 ●
terminal X6
Multi-function input pause
P5-16 Reserve ● 1086
terminal X7

Multi-function input
P5-17 Reserve ● 1087
terminal X8

※The 8-speed setting can be achieved through the state combination of three multi-function input terminals.
Multi- Multi- Correspond Multi- Multi- Correspond
Multista Frequency Multista Frequency
stage paragra ing stage paragra ing
ge two setting ge two setting
three ph parameters three ph parameters
Multi-band P0-01 Multi-band
OFF OFF OFF ON OFF OFF P8-04
frequency 0 decision frequency 4
Multi-band Multi-band
OFF OFF ON P8-01 ON OFF ON P8-05
frequency 1 frequency 5
Multi-band Multi-band
OFF ON OFF P8-02 ON ON OFF P8-06
frequency 2 frequency 6
Multi-band Multi-band
OFF ON ON P8-03 ON ON ON P8-07
frequency 3 frequency 7
0: Two-line control 1 1: Two-line control 2
Terminal operation
P5-18 2: Three-wire control 1 3: Three-wire control 2 0 ● 1088
control mode
Input terminal filter 2ms～100 ms
P5-19 10 ms ○ 1089
time
UP/DOWN range 0.0～50.0Hz (the amplitude of keyboard or terminal
P5-20 0.1 ○ 1090
increasing/decreasing)
MODBUS 2：1200BPS 3：2400BPS 4：4800BPS
P5-25 communication baud 5：9600BPS 6：19200BPS 7：38400BP 5 ○
rate
MODBUS data format 0: No parity (8-N-1) 1: No parity (8-N-2)
P5-26 2: Even parity (8-E-1) 3: Odd parity (8-O-1) 0 ○

MODBUS response 0 ～ 200ms

P5-27 20 ○ 1097
delay
Communication 0.0：No detection 0.1 ～ 60.0s
P5-28 0.0 ○ 1098
abnormal timeout
Communication 0: Continue to run 1: Alarm and stop
P5-29 abnormal action 0 ○ 1099
selection
 Frequency inverter user manual

P6 Terminal output function parameters

MODBUS
Functio Chan
Name Parameter description Default address
n Code ge
(decimal)
Y1 output selection 0: No function 1: Inverter running
2: The actual running direction is opposite to the given
direction
P6-00 1 ○ 1101
3: Fault output 4: Ready to run
5: Frequency reach FAR (refer to PA-13)
※With the value of PA-11 as the center, the value of
Relay output (PA-13) is the upper and lower amplitude, the operating
selection frequency is within this range, and the signal output is
ON
6: Frequency level detection FDT (refer to PA-11～PA-
13)
※The value of PA-11 is centered, the value of PA-12 is
the hysteresis value, the operating frequency
acceleration is higher than the value of PA-11, and the
P6-02 deceleration is not lower than the hysteresis value of PA- 3 ○ 1103
12 relative to PA-11, the signal output is ON
7: Upper limit frequency reached (P0-09)
8: Lower limit frequency reached (P0-10)
9: Set count arrival (refer to PA-14)
10: The designated count arrives (refer to PA-15)
12: Stop delay output. The output signal is ON
immediately after stopping, and the output time is
determined by P6-05
0: Operating frequency (0～upper limit frequency)
1: Output current (0～2 times the rated output current of
the inverter)
P6-03 AO output selection 2: Bus voltage (0～2 times the rated bus voltage of the 0 ○ 1104
inverter)
3: Output voltage (0～2 times the rated output voltage
of the inverter)
※The output can be a voltage signal (0～10V) or a current signal (0～20mA), which can be switched by the
DIP switch of the control panel.
P6-04 AO correction factor 0.0～250.0% 100.0% ○ 1105
Stop delay output 0～3000.0 s
P6-05 0 ○ 1106
time

P7 PID function control parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
PID reference source 0: Digital setting (P7-01) 1: Panel potentiometer
P7-00 0 ○ 1110
selection 2: Analog channel AI1 3: Analog channel AI2
P7-01 PID digital given value 0.00～10.00 V 0.00V ○ 1111
PID feedback source 0: Analog channel AI1 1: Analog channel AI2
P7-02 0 ○ 1112
selection
PID output 0: PID output is positive characteristic 1: PID output is
P7-03 0 ○ 1113
characteristic selection negative characteristic
P7-04 Proportional gain P 0.0～10.0 1.0 ○ 1114
P7-05 Integration time I 0.0～100.0s 1.0s ○ 1115
Set and feedback 0.00～2.00(Within tolerance, PID is not calculated)
P7-06 0.02 ○ 1116
deviation tolerance
Feedback amount 0.1～100.0s
P7-07 0.02s ○ 1117
sampling period (T)
Feedback source 0.00～5.00
P7-08 disconnection 0.0 ○ 1118
detection value
Feedback source 0.0～100.0s
P7-09 disconnection 10.0s ○ 1119
detection time
 Frequency inverter user manual
P7-12 Sleep time 0～3000S 600 ○ 1122
P7-13 Dormant pressure 0～10.00 (Slightly less than the set pressure P7-01) 0 ○ 1123
Sleep frequency 0～50.0Hz (2～3Hz greater than the frequency of
P7-14 0 ○ 1124
maintaining pipeline pressure)
P7-15 Wake up stress 0～10.00 (need to be less than sleep pressure P7-13) 0 ○ 1125
※Inverter The feedback pressure is greater than the set value of the sleep pressure (P7-13); when the running
sleep frequency is continuously lower than the set value of the sleep frequency (P7-14) and the duration
conditions reaches the set time (P7-12), the inverter starts to sleep.

P8 Simple PLC mode and multi-speed parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
Simple PLC mode 0: Simple PLC program operation is invalid
1: The program stops after running for one cycle
P8-00 0 ● 1126
2: After running for a week, run at the last frequency
3: The program runs cyclically
P8-01 First stage speed Lower limit frequency ~ upper limit frequency 11.0Hz ○ 1127
P8-02 Second speed Lower limit frequency ~ upper limit frequency 12.0Hz ○ 1128
P8-03 Third stage speed Lower limit frequency ~ upper limit frequency 13.0Hz ○ 1129
P8-04 Fourth stage speed Lower limit frequency ~ upper limit frequency 14.0Hz ○ 1130
P8-05 Fifth stage speed Lower limit frequency ~ upper limit frequency 15.0Hz ○ 1131
P8-06 Sixth speed Lower limit frequency ~ upper limit frequency 16.0Hz ○ 1132
Seventh stage Lower limit frequency ~ upper limit frequency
P8-07 17.0Hz ○ 1133
speed
Main frequency 0～6400.0 (The corresponding frequency is determined
P8-08 running time 0.0s ○ 1134
by P0-01)
The first period of 0～6400.0 (The corresponding frequency is P8-01)
P8-09 0.0s ○ 1135
time
Second period 0～6400.0 (Similar to the same as above, the same
P8-10 0.0s ○ 1136
below)
P8-11 The third period 0～6400.0 0.0s ○ 1137
P8-12 The fourth period 0～6400.0 0.0s ○ 1138
P8-13 Fifth period 0～6400.0 0.0s ○ 1139
P8-14 Sixth period 0～6400.0 0.0s ○ 1140
P8-15 Seventh period 0～6400.0 0.0s ○ 1141
P8-16 Multi-speed time unit 0: second 1: minute 2: hour 0 ● 1142
The direction of each From 0 to 255, each bit of the binary system represents
segment of the a block direction. 0 means forward rotation, 1 means
program reverse rotation; corresponding to binary and then
P8-17 converted to decimal 0 ● 1143
※Example: The first paragraph is reversed, and the third
paragraph is reversed, expressed in binary as:
(0000 1010)2=(10)10 ie P8-17=10
Selection of 0～65535 Use every two digits of the binary system to
acceleration and represent the acceleration and deceleration time
deceleration time for corresponding to a block direction
each section of the BIT 15～0 represents the acceleration and deceleration
P8-18 program 0 ○ 1144
time corresponding to the 7～0 segment, the algorithm
is the same as above
※Binary 00: (P0-04, P0-05) 01: (PA-00, PA-01) 10: (PA-
02, PA-03) 11: (PA-04, PA-05)

P9 Protection function parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
Motor overload 0: No protection 1: Protection
P9-00 0 ● 1147
protection selection
Motor overload 50～120% (100% corresponds to the rated current of the
P9-01 110% ● 1148
protection point motor P3-02)
Overvoltage stall 0: Prohibit protection 1: Allow protection
P9-02 1 ● 1149
protection ※It can be set to 0 when there is a braking resistor
 Frequency inverter user manual
connected to improve the braking effect
110.0～150.0% (100% corresponds to the standard bus
P9-03 135 ● 1150
Stall overvoltage point voltage of the inverter)
Over-current 0: Prohibit protection 1: Allow protection
P9-04 1 ● 1151
protection
Stall overcurrent point 100～180% (100% corresponds to the rated current of the
P9-05 180 ● 1152
inverter)
Input phase loss 0: Prohibit protection 1: Allow protection
P9-06 Reserve ● 1153
protection
Output phase loss 0: Prohibit protection 1: Allow protection
P9-07 Reserve ● 1154
protection
Recent failure 0～21 (Refer to fault information and corresponding
P9-08 × 1155
information countermeasures for details)
Last failure information 0～21 (Refer to fault information and corresponding
P9-09 × 1156
countermeasures for details)
The first two failure 0～21 (Refer to fault information and corresponding
P9-10 × 1157
information countermeasures for details)
Operating frequency of
P9-11 × 1158
recent failures
Output current of
P9-12 × 1159
recent fault
Bus voltage of the last
P9-13 × 1160
fault
Input status of recent
P9-14 × 1161
fault
Latest fault output
P9-15 × 1162
status
Fault self-reset 0: Invalid 1: Auto reset of undervoltage fault (unlimited
P9-16 function number of times) 0 ● 1163
2～20: Number of automatic fault resets

PA Enhanced function parameters

MODBUS
Function
Name Parameter description Default Change address
Code
(decimal)
PA-00 Acceleration time 1 0.1～3600.0s 20.0s ○ 1165
PA-01 Deceleration time 1 0.1～3600.0s 20.0s ○ 1166
PA-02 Acceleration time 2 0.1～3600.0s 20.0s ○ 1167
PA-03 Deceleration time 2 0.1～3600.0s 20.0s ○ 1168
PA-04 Acceleration time 3 0.1～3600.0s 20.0s ○ 1169
PA-05 Deceleration time 3 0.1～3600.0s 20.0s ○ 1170
PA-06 Jog acceleration time 0.1～3600.0s 5.0s ○ 1171
PA-07 Jog deceleration time 0.1～3600.0s 5.0s ○ 1172
PA-08 Hop frequency 1 0.0～Upper limit frequency (P0-09) 0.0Hz ○ 1173
PA-09 Hop frequency 2 0.0～Upper limit frequency (P0-09) 0.0Hz ○ 1174
PA-10 Hop frequency range 0.0～Upper limit frequency (P0-09) 0.0Hz ○ 1175
FDT level detection 0.0～Upper limit frequency (P0-09)
PA-11 0.0Hz ○ 1176
value
FDT hysteresis 0.0～FDT level (PA-11)
PA-12 0.0Hz ○ 1177
detection value
PA-13 Frequency reach FAR 0.0～Upper limit frequency (P0-09) 0.0Hz ○ 1178
PA-14 Set the count value 1～65535 10 ○ 1179
Specify the number of 1～65535 (The designated count value cannot be greater
PA-15 counts 10 ○ 1180
than the set count value)
Overload frequency 0: invalid 1: valid
PA-16 1 ● 1181
reduction function
PA-17 DC braking coefficient 110%～150% 130 ● 1182
Dead zone Model determination Dependin
PA-21 ● 1186
compensation time g
Down frequency 100%～300%
PA-22 210 ● 1187
current point
 Frequency inverter user manual

2. Failure information and corresponding countermeasures

Fault
Code Fault type Possible cause of failure Corresponding countermeasures
display
Check the input power voltage
LU 3 Undervoltage Abnormal input power or loose wiring
and wiring
1. Check the input power
1. Check the input power supply voltage supply voltage
OU 4 Overpressure 2. Decelerate too fast 2. Increase deceleration time
3. The load inertia is too large 3. Use energy-consumption
braking components
1. Choose a large-capacity
inverter
1. The capacity of the inverter and the motor do not 2. Check the power supply and
match wiring tightness
2. Low grid voltage 3. Increase acceleration and
OC 6/14 Overcurrent
3. Acceleration and deceleration are too fast deceleration time
4. Large load inertia torque 4. Choose appropriate brake
5. Sudden change or abnormality in load components
5. Check and reduce sudden
changes in load
1. Refer to overcurrent OC
1. See the cause of overcurrent OC failure
countermeasures
OL 5 Inverter overload 2. The motor load is too large
2. Reduce motor load
3. Improper setting of V/F curve
3. Reset the parameters
1. The grid voltage is too low
2. The motor is blocked or the load sudden change is 1. Check the grid voltage
OL1 15 Motor overload too large 2. Check the motor load
3. The setting of motor rated current, motor overload 3. Reset the parameters
protection point or V/F curve is incorrect
1. Refer to overcurrent OC
countermeasures
1. See the cause of overcurrent OC failure
2. Good motor and cable
Output short 2. Output U-V-W interphase or ground short circuit
SC 9 insulation
circuit 3. The control board connection or plug-in is loose
3. Check that the connectors
4. The power module or other parts are damaged
are well connected
4. Seek service
1. Check the input power and
voltage
SPI 7 Input phase loss Input power R, S, T has phase loss
2. Check and tighten the input
wiring
1. Check and tighten the output
Output phase 1. U, V, W phase loss output
SPO 8 wiring
loss 2. The three-phase load is severely unsymmetrical
2. Check the motor and cable
1. Reduce the ambient
temperature
1. The ambient temperature is too high
2. Clean the air duct and
OH 13 overheat 2. The air duct is blocked and the fan is damaged
replace the fan
3. The motor load is too large
3. Reduce the load or carrier
frequency
PID feedback signal is lost for more than a certain Check PID feedback signal and
PIE 12 PID failure
time connection
EF 11 External fault External fault input terminal action Check external device input

EEPROM 1. Parameter read and write error 1. Restore factory value

EEP 1
Fault 2. EEPROM is damaged 2. Seek service
1. Check the grid voltage
1. The grid voltage is too low
The contactor is 2. Replace the main circuit
NCE 16 2. The contactor is damaged
not closed contactor
3. Damage to other circuits
3. Seek service
OPSE 10 system error Severe interference and noise Add filters or seek service
CF
1. The current sensor is damaged 1. Replace the current sensor
Current detection
20 2. The signal line is in poor contact 2. Check the signal line
signal failure
3. Other line faults 3. Seek service
 Frequency inverter user manual
1. Check whether the
communication settings are
communication correct
CE 21 Poor communication or broken communication line
fail 2. Whether the communication
line is broken or poorly
connected

7、MODBUS communication


Command code 03 is read data, 06 is write data.
 -00 to PA-26 in sequence correspond to the RAM (not stored
after power-off) communication address: 1000～1191 (decimal). For the specific address, please refer to the
MODBUS communication address on the right side of the function parameter summary table. If you need to
store data in EEPROM (power-down storage), subtract 1000. Example: The RAM address of function code P0-04 is
represented as 1004, and in EEPROM, the address is 0004. There is no such difference in related addresses in
other non-parameter tables.

screen, please set the PLC interval address to 1.
 The 200 series inverter has no such restriction.

1. Monitoring parameter address (read only):

MODBUS communication Data meaning description MODBUS communication Data meaning description
address (decimal) address (decimal)
Set frequency Accumulated running time
220 232
of inverter
221 Output frequency 233 Display input terminal
222 Output current 234 Display output terminal
bus voltage Display inverter rated
223 235
power
Motor speed Display compensation
224 236
frequency
Percentage of current Display compensation
225 237
voltage
226 IGBT temperature 238 Display phase angle
227 The output voltage 239 Display load factor
228 Output Power 242 Analog AI1 given value
229 Current count value 243 Analog AI2 given value
PID given value Keyboard potentiometer
230 244
set value
231 PID feedback value

2. Communication control start-stop command address (read and write, valid when P0-02=3)
MODBUS communication
Data meaning description
address (decimal)
1: Forward running 2: Forward jog 5: Reverse running
200
6: Reverse jog 8: Stop 16: Free stop 32: Fault reset

3. Communication control operating frequency address (read and write, valid when P0-01=7)
MODBUS communication Data meaning description
address (decimal)
1003 The given value is the given frequency of the inverter

4. Inverter status address (read only)

MODBUS communication
Data meaning description
address (decimal)
0: Inverter stops 1: Forward running
240
2: Reverse running 3: Failure
 Frequency inverter user manual
5. Inverter fault address (read only)
MODBUS communication
Data meaning description
address (decimal)
1: Memory failure 3: Under voltage 4: Over voltage
5: Overload 6: Over current 7: Input phase loss
8: Output phase loss 9: Output short circuit 10: System failure
241
11: External fault 12: PID fault 13: Overheating
14: Over current 15: Motor overload 16: Contactor is not closed
20: Current detection signal failure 21: Communication failure