Catalogue

I、Introduction
1、 Checks upon Delivery ------------------------------------------------------------1
2、 Nameplate Description of YL Series Inverter---------------------------------------1
ll、Safety Precautions
1、Before the Power-up---------------------------------------------------------------1
2.During the Power-up----------------------------------------------------------------2
3、During the Operation--------------------------------------------------------------2
Ill、Standards and Specifications
Particular Specifications------------------------------------------------------------3
IV. Storage and Installation
1、Storage---------------------------------------------------------------------------3
2、Installation Site and Environment-------------------------------------------------4
3、Installation and Direction--------------------------------------------------------4
V、Wiring
1、Function Description of Main circuit Terminals------------------------------------4
2、Function Description of Control Circuit Terminals---------------------------------5
3、Basic Connection Diagram----------------------------------------------------------5
VI、Precautions on Wiring
① For the main circuit wiring:----------------------------------------------------------7
② For control circuit wiring(signal line)-----------------------------------------------8
③ Grounding-----------------------------------------------------------------------------8
VII、Instruction of the Digital Operator
1、Description of the Digital Operator-----------------------------------------------9
2、Description of Indicator Lamp Status----------------------------------------------9
VIII、 Commissioning-----------------------------------------------------------------10
IX、Function List---------------------------------------------------------------------11
X. Care & Maintenance, Fault Information and Troubleshooting
1. Precautions about Inspection and Maintenance------------------------------------21
XI. Modbus Register address-inverter parameter correspondence table
XII、Table of correspondence between Multi-Segment Speed instruction,Frequency
Segment and Parameter item---------------------------------------------------------27
XIII、JP1 short circuit block configuration----------------------------------------27
XIV、Selection of Peripheral Devices and Disposition------------------------------28
XV、Customer feedback proposal-------------------------------------------------------29

* The manual is subject to change without notice.

-1-
I、introduction
1、Checks upon Delivery ；
The inverter has been strictly andwe11 packed before ex.work. ln consideration of various factors
during the transportation specia1 attention should be paid to the fo11owing points before the assembly
and insta11ation. If there is anything abnorma1 please notify the dealer or the relevant people of our
company.
● Check if the inverter has got any damage or deformation during the transportation and handling.
● Check if there is one piece of YL series inverter and one copy of the instruction manua1。 available
when unpacking it.
● Check the information on the nameplate to see if the specifications meet your order( Operating
Voltage and KVA value)。
● Check if there is something wrong with the inner parts, w1ring and circuit board.。
● Check if each tcrmina1 is tightly1ockcdand if there is any foreign artic1o inside the inverter。
● Check if the operator buttons are a11 right。
● Check if the optiona1 components you ordered are contained。

2、Nameplate Description of YL Series inverter

ll、Safety Precautions
2、Before the Power-up

● Check to be sure that the voltage of the main circuit AC power supply matches the input voltage of
the inverter。
●The symbol, ,represents ground terminals Be sure to make correct ground connection of the earth
terminals of the motor and the inverter for safety.。
● No contactor should be installed between the power supply and the inverter to be used for starting
or stopping of the inverter Otherwise it will affect the service life of the inverter. 。

-2-
 ● R.S.T(N.L) terminals are power input terminals never mixed with U.V.W terminals Be sure that the
wiring of the main circuit is correct Otherwise it will cause damages of the inverter when the power
is applied To it.。

●Do not carry the front cover of the inverter directly when handling. It should be handled with the
Basetopreventthefa11-offofthefrontcoverandavoidthedroppingoftheinverter,whichmaypossiblycausetheinj
uriestopeopleandthedamagestotheinverter。
●Mount the inverter on a meta1 or other noncombustible materia1 to avoid the risk of fire.。
●Insta11 the inverter in a safe1ocation, avoiding high temperature, direct sunlight, humid air or water。
●Keep the inverter from the reach o「children or persons not concerned。
●The inverter can only be used at tho places accredited by our company. Any unauthorized working
environment may have the risks of fire, gas cxp1osion, electric shock and other incidents。
●Insta11 a heat sink or other cooling device when insta11ing more than one inverter in the same enc1osure
so that the temperature insidcthcnc1osurc be keptbc1ow40℃ to avoid overheat or the risk of fire。
●Be sure to turn off the power supply before dissembling or assembling the operation key panel and
fixing the front Cover to avoid bad contact causing faults or non.display of the operator。
●Do not insta11 the inverter in a space with cxp1osive gas to avoid the risk of explosion.
●If the inverter is used at or above 1000m above seal level,the cooling efficiency wi11 be worse,so
p lease run it by de -rating.
●Do not insta11 any contactor and other components of capacitor or varistor on the output side of the
inverter Otherwise it wi11 cause malfunctions and damages of components of the inverter Do not insta11
any switch Component like air circuit breaker or contactor at the output of the inverter If any of such
components must be insta11ed because of the requirements of process and others, it must be ensured that
the inverter has no output when the switch acts In addition, it is forbidden to insta11 any capacitor
for improvement of power factor or any varistor against thunder at the output Otherwise it wi11 cause
malfunctions, tripping protection and damages of components of the inverter P1ease remove them as shown
in the be1ow diagram.
●It wi11 affect the service life of the inverter if a contact is connected to the front end of input
of the inverter to contro1 its starts and stops Genera11y it is required to contro1 it through FOR or
RIIV terminals Special attention should be paid to its use in the case of frequent starts and stops
●Please use an independent power supply for the inverter Do avoid using the common power supply with
an electrica1 welder and other equipment with strong disturbance. Otherwise it wil1 cause the protection
or even damage of the inverter .

2.During the Power-up

● Do not plug the connectors of the inverter during the power up to avoid any surge into the main
contro1 board due to plugging, which might cause the damage of the inverter。
●Always have the protective cover in place before the power up to avoid electrica1 shock injury.。

-3-
 3. During the Operation
● Never connect or disconnect the motor set while the inverter is in running Otherwise it will cause
over-current trip and even burn up the main circuit of the inverter.

● Never remove the front cover of the inverter while the inverter is powered up to avoid any injury
of electric shock.
●Do not come close to the machine when the fault restart function is used to avoid anything unexpected
The motor may automatically restart after its stop.
●The function of STOP Switch is only valid after setting which is different with the use of emergent
stop switch please pay attention to it when using it.

● Do not touch the heat sink, braking resistor, or other heat elements to avoid being scald.
● Be sure that the motor and machine is within the applicable speed ranges before starting operation
because the inverter is quite easy to run from lower speed to higher speed.
● Do not check the signals on circuit boards while the inverter is running to avoid danger.
● Be careful when changing the inverter settings. The inverter has been adjusted and set before
ex work. Do not adjust it wantonly. Please make proper adjustments according to the required
functions.
● Do consider the vibration, noise and the speed limit of the motor bearings and the mechanical
devices when the inverter is running at or above the frequency of 50Hz.

Ill、Standards and Specifications

Particular Specifications

Lnverter Output Suitable

Power
Type lnput Voltage Capacity Current Motor
（KW）
（KVA） （A） （KW）
YL600-1.5KW-110V AC110V60Hz 1.5 2.8 14 1.5
YL600-2.2KW-110V AC110V60Hz 2.2 4.0 20 2.2
YL600-1.5KW-110V AC220V50Hz 1.5 2.8 7.0 1.5
YL600-2.2KW-110V AC220V50Hz 2.2 4.0 10 2.2

YL620-A-1.5KW-110V AC110V60Hz 1.5 2.8 14 1.5

YL620-A-2.2KW-110V AC110V60Hz 2.2 4.0 20 2.2
YL620-A-1.5KW-220V AC220V50Hz 1.5 2.8 7.0 1.5
YL620-A-2.2KW-220V AC220V50Hz 2.2 4.0 10 2.2
YL620-A-3.0KW-220V AC220V50Hz 3.0 5.5 13 3.0

IV. Storage and Installation

1、Storage
The inverter must be kept in its original package box before installation. Pay attention to the

-4-
 followings when keeping it in storage if the inverter is not used for the time being:
• It must be stored in a dry place without rubbish or dust.
• The suitable temperature for storage is between -20°C and +65〇 C.
• The relative humidity required is 0-95% without condensation.
• There is no corrosive gas or liquid in the storage ambience.
• It's better to lay the inverter on a rack and keep it in a proper package.
• It is better not to store the inverter for long time.Long time storage of the inverter will lead
to the deterioration of electrolytic capacity. If it needs to be stored for a long time make sure to
power it up one time within a year and the power-up time should be at least above five hours. When powered
up the voltage must be increased slowly with a voltage regulator to the rated voltage value.

2、Installation Site and Environment

The inverter should be installed at the following location:

• Ambient temperature -5°C to 40°C with good ventilation.
• No water drop and low moisture.
• Free from direct sunshine, high temperature and heavy dust fall.
• Free from corrosive gas or liquid.
• Less dust，oil gas and metallic particles
• Free from vibration and easy for service and inspection.
• Free from the interference of electromagnetic noise.
Attention: 丁 he ambient conditions of the inverter will affect its service life.

3、Installation and Direction

• There must be enough space left around the inverter for easy maintenance and cooling. See Diagram.
• The inverter must be installed vertically with the smooth ventilation for effective cooling.
• If there is any instability when installing the inverter, please put a flat board under the inverter
bottom base and install it again. If the inverter is installed on a loose surface, stress may cause
damage of parts in the main circuit so as to damage the inverter.
• The inverter should be installed on non-combustible materials, such as iron plate.
• If several inverters are installed, upper and lower, together in one cabinet, please add heat
dissipation plates and leave enough space between the inverters. See Diagram.

V、Wiring
● Be sure to make correct connections of the main circuit wires and control signal Wires of the
inverter。
● Be sure to make correct setting of parameters for the inverter。

1、Function Description of Main circuit Terminals

-5-
 Symbol Function Description
Input terminal of AC line power (220V class,for both single/three phase,single phase
N L
connected to any two phases)
U.V.W Output terminal of the inverter
+DB- Connector for braking resistor(optional)
FG Grounding terminal

2、Function Description of Control Circuit Terminals

YL600series

Symbol Function Description Factory setting

X1 Multi-lnput 1
X2 Multi-lnput 2
X3 Multi-lnput 3
X4 Multi-lnput 4 Forward run
X5 Multi-lnput 5 Reverse run
COM Common Terminal of Digital and Control signals
AI1 Analog Voltage Frequency Reference Input
5V Power Supply for Speed Setting

YL620series

Symbol Function Description Factory setting

NC empty
MO Triode output
FWD For rotation
REV Rev rotation
X4 Multi-lnput 4
X3 Multi-lnput 3
X2 Multi-lnput2
X1 Multi-lnput 1
XGND Common Terminal of Digital and Control signals
XVCC 15Vexternal input
GND Common Terminal of Digital and Control signals
VI1 Analog Voltage Frequency Reference Input
10V Power Supply for Speed Setting
13V External Power Supply for
AO simulation output
NC1 Relay Normally open contact
NO1 Relay Normally closed contact
CM1 Relay Common end

3、Basic Connection Diagram

-6-
 The wiring of the invereter is divided into two parts,main circuit terminal connections and control
Circuit terminal connections.The user can see the main circuit terminals,and the control circuit terminals
After removing the cover of enclosure.The terminals must be connected correctly as the following wiring
circuit diagrams。

-7-
Note:The above wiring diagram explained that only supplies the reference,take the actual
product as the standard.The diagram is subject to change without notice。

VI、Precautions on Wiring
① For the main circuit wiring:
● While wiring the sizes and specifications of wires should be selected and the wiring should be

-8-
executed according to the electrica1 engineering regulations to ensure the safety.。
● It is better to use shielded wire or wire and conduit for power cord and ground the shielded layer
or two ends of wire conduit.
● Be sure to instal1 a Non Fuse Breaker(NFB) between the power supply and the input terminals (R.S.T).
(lf using ground fault circuit interrupter please choose one corresponding to high frequency)
● Never connect AC power to the output termina1 (U.V.W) of the inverter.
● Output wires mustn·t be in touch of the meta1 part of the inverter enc1osure, or it wi11 result
in earth short-circuit.
● Phase-shifting capacitors,LC,RC noise filters, etc, can never be connected to the output terminals
of the inverter.
● The main circuit wire must be enough far away from other contro1 equipments.
When the wiring between the inverter and the motor exceeds 15 meters for220V class or30 meters
for380V class,much higher dV/dT wi11 be produced inside the coi1 of the motor, which wi11 cause the
destruction to the interlay or insulation of the motor Please use a dedicated AC motor for the inverter
or add a reactor at the inverter.
● Please 1ower the carrier frequency when there is a1onger distance between the inverter and the
motor Because the higher the carrier frequency is the bigger the leakage current of high-order
harmonics in the cables wi11 be. The 1eakage current wi11 have unfavorable effect on the inverter and
other equipment.

② For control circuit wiring(signal line)

● The signa1 line should be separately laid in a different conduit with the main circuit wire to avoid
any possible interference.
● Please use the shielded cable with the sizeof0.52mm for signal lines。
● Use the contro1 terminals on the control pane1 correctly according to your needs.

③ Grounding
● Grounding terminal E. Be sure to make correct grounding220V class: The third grounding
method(Grounding resistance should be 100 Ω or 1ower) 380Vclass: The spccia1 third ground1ng
method(Grounding resistance should be 10Ω or 1ower)
● Choose grounding wires according to the basic length and size of the technica1 requirements of the
electric equipment
● Do avoid sharing grounding wire with other large power equipment such as electric welder, power
machine, etc. The grounding wire should be kept away from the power supply wires for large power
equipment.
● The grounding method for severa1 inverters together should be done as the first and second diagrams
be1ow. Avoid the third1oop.
● The grounding wire must be as shorter as possib1e.

-9-
VII、Instruction of the Digital Operator
1、Description of the Digital Operator

2、Description of Indicator Lamp Status

（1）Description of the Digital Operator

- 10 -
 icon function explain
RUN Power on, running key Power on self-test, display frequency

PRGM Programming key Enter programming-exit programming

DISP Dot key Click key, when setting parameters, can be used
to move display focus.
Upper key Up arrow key for parameter modification, page
turning, upload. Modify numeric value
Down key Down arrow key, used for parameter modification,
page turning, down pass.
SET Data function key Enter parameter value setting state, save
modified parameter value
F/R Forward and reverse Can switch forward and reverse in operation
switch key
Speed control knob Regulating running speed

STOP Stop reset key Stopping motor

（2）Description of Operation Examples

Upload converter host parameters to digital operator:
First keep press the STOP button ,then press the ▲button. Digital operator will automatically read
all the parameters of the converter host and stored in a digital operator.The original parameters are
covered.The digital operator can only save one last upload parameter.After uploading,please press PRGM
button to exit.In the upload process, if there is an error, the error number will be displayed,please
press PRGM key to clean up mistakes then retry the upload operation above.

Download the parameters from the digital operator to the converter host：
First keep press the STOP button ,then press the ▼ button. Digital operator will automatically download
all the parameters of the converter host and stored in a digital operator.The original parameters are
covered.The converter host can only save the last download of the parameter.After the digital operator
downloads the parameters, the parameters of the digital operator are unchanged.After the download is
complete, press (program) PRGM key to exit.In the upload process, if there is an error, the error number
will be displayed,please press PRGM key to clean up mistakes then retry the upload operation above.

Frequency converter (inching) operation:

Please press (direction) forward and reverse switching key to specify the direction of operation of the
motor (indicated by the indicator). First keep press the STOP button then press (inch) DISP key.The motor
will operate in a jog mode.Note that if the user parameter prohibits the motor reversal, it will not
be able to achieve the reverse point movement

Frequency conversion cooling fan test run：

Pressing (stop) STOP key every time will force the cooling fan to run for about 30 seconds to facilitate
the user to observe the working conditions of the fan.

- 11 -
Parameter setting method：
1、Press (program) PRGM key until the converter is shown as "Pyy.xx" that means entering the parameter
settings status.Among that,the YY means parameter group number, XX means parameter number.For example,
P01.12 is shown as a No.twelfth parameter number in group 01(For the specific meaning of each parameter,
see the parameter specification table.)
2、Press ▲▼keys to select the group and No. of parameters.Press the data function (SET) key to enter
the parameter value setting,showing 60.0.Press ▲▼keys to modify parameter values;At this point, press
(data function) SET key to save the current modified parameter values.You can also press (programming)
PRGM key, you can exit the parameter settings, to give up the modification of the parameters.

In the choice of parameter group number and number of parameters.You can press (shift) DISP key to select
the parameter group number, parameter number.(Flashing display)to quickly select the parameters the user
interested in.Similarly, when the parameter values are modified, the (shift) DISP key is used to select
the bit to modify the parameter(Flicker display) to quickly modify the parameter values.
After modifying the parameters, press (programming) PRGM key, you can exit the parameter settings.
Note that if the parameter table is locked(P00.13=1),all parameters can only be viewed and can not be
modified.
Please set the parameters while the converter is shut down.When the converter is running, ifyou set the
parameters, it can be effective. but only when the converter shut down,the date can be preserved.

VIII、 Commissioning
1、lmportant Checks before the Commissioning
1f there is any wrong connected wires? Pay specia1 attention to the termina1 of U.V.W; Make
sure the power supply wires are connected to R.S.T, not U.VW. If there is any meta1 powder or wires
left on the base plate of the inverter or the termina1 b1ock,,which may cause short circuit If screws
are tightly 1ocked and if the connecting parts are 1oose.If there is any short circuit or earth fault
at outputs

2. Commissioning Methods
The procedure of the operator is factory set up for the contro1 mode of YL series The
commissioning can be carried out through the digita1 operator Genera11y, the commissioning can be
conducted at 5.00Hz.

IX、Function List
1、Parameters Function List1
Set Range& Factory User Set
Code Function
Function Explanation Setting Value
P00.00 Main Frequency 0.0-600.0HZ 50.0HZ
0: Operator board
1：From external end control Electric
P00.01 Start / stop command source machinery,operation panel STOP key 1
effective
2：From external end son control Electric

- 12 -
 machinery,operation panel STOP key invalid
3：from (Modbus Rs485) control Electric
machinery
P00.02 Reserved 0
0：Decelerating stop
P00.03 Stopping Mode 1：Coasting stop 0
2：DC brake stop
P00.04 VF:Highest output frequency 1.0-600.0HZ 60.0HZ
VF:Maximum Voltage Output
P00.05 5.0.0-600.0HZ 50.0HZ
Frequency
P00.06 VF:Highest output Voltage 10.0%-150.0% 100.0%
P00.07 VF:Middle Frequency 1.0-600.0HZ 3.5HZ
P00.08 VF:Middle Voltage 10.0%-100.0% 20%
P00.09 VF:Min Frequency 0.0-600.0HZ 0.8HZ
P00.10 VF:Min Voltage 0%-100.0% 10%
Analog Input quantity 1
P00.11 0%-100% 100
Regulation Multistage velocity
P00.12 VF :Curve Setting 0-4 0
0: lnvalid
1: Valid
P00.13 Parameter Lock 10: Restore the factory setting No other 0
function
Other values: not available
P00.14 Reserved 0
0：Power on time,allow External end son
input effective level,start-up Electric
Power on Time prohibit External machinery .
P00.15 1
end son Start-up 1：Power on time,Not allow External end
son input effective level,start-up
Electric machinery .
0: FWD(X5)yes,Positive run the
command ,REV(X4)yes,reverse run the
command
1: REV(X4)Determine direction:Open Yes
FWD,Shut Yes REV;FWD(X5)Start command:FWD
Selection of starting / Stop,REV Boot
P00.16 stopping Control Mode of 2:EF(X3),REV(X4),FWD(X5RUN).Three wire 0
external Terminal control motor operation
3: Stop，FWD(X5) turn off Instantaneous ，
positive start motor;run，REV(X4) shut down
immediately Stop
Stop，REV(X4)Turn off the reverse start
motor；run，FWD(X5)Closing action，Stop

- 13 -
 4: FWD(X5) turn off Instantaneous ，
positive start motor;；REV(X4)Closing
action，Stop
5: FWD(X5) turn off Instantaneous ，
positive start motor;；REV(X4) shut down
immediately Stop
6: Stop，FWD(X5) turn off Instantaneous ，
positive start motor;；run，FWD(X5) shut
down immediately Stop.run REV(X4)turn off
the motor immediately， Reversing
7: REV(X4)When open，FWD(X5)Start-up
instant, Positive direction start motor；
REV(X4)When closed, the motor is not
allowed to start；Runtime REV(X4) Closing
action Instantaneous stop
8: the function of the wire cutting left and
right limit commutator mode X3 should be
set to "retain" that is, P00.190.When the
"wire cutting left and right limit
commutative mode wiring diagram" is
disconnected, when shutdown. Start is
closed, the direction is determined
according to the current state of the limit
switch. And start motor. Start closed, if
two limit open
When the state of turn off is disconnected,
the motor starts to the left by default.
While running to the left, the left limit
switch XLSL (X3) changes to the right when
it is closed (limit). While running to the
right, the right limit switch XLSR-X4 is
closed (limit). Change to left running. If
left and right simultaneously limit
position, shut down; Note: multifunction
relay 1 function P04.03) choose to 17
(constant speed, otherwise power loss, and
set P04.05 P04.06, can achieve
wire-cutting "switch high frequency"
function.

0: retain
Many function input X1 function 1: Multi-segment Speed instruction
P00.17 1
Choice 5: as forward turn point input
6: as reverse point input

- 14 -
 7: as point action input / rev X4 to
determine direction)
Many function input X2
P00.18 8: closing action instant stop 1
function Choice
9: disconnect action instant stop
10: disconnect, Immediate DC brake stop
(regardless of PV_StopMode setting)
11: external terminal speed increase
Many function input X3 function instruction (only for main frequency
P00.19 0
Choice P00.00, deceleration step specified by
parameter P00.20)
12: external terminal deceleration
instruction (valid for main frequency
P00-00 only, step-down specified by
parameter P00-20)
13: External fault often opens, closing
action produces "external fault"
14: external fault usually closes input,
Many function input X4 function
P00.20 disconnect action instantaneous produces 0
Choice
"external fault"
15: external fault, closure produces
"external fault"
16: external fault, Disconnect generated
"external failure"
17: used as external fault reset input
External Terminal rise/Slow
P00.21 0.0-600.0HZ 1.0HZ
down increment
External Terminal rise/Slow
P00.22 2
down time interval
Physics amount display
P00.23 0-999.9% 100.0%
Proportion constant
0: Display current target frequency
1:Display Electric machinery run
frequency.
2:Display Electric machinery run current.
3:Display input AC voltage
4:Display mother Line voltage
After power supply, display 5:Display output voltage
P00.24 0
project Choice 6:Display speed paragraph Number SP x
7:Display inverter temperature t xx
8:Display input signal X1-X3/output
signal
9:Display user variable
10:Display user Count value
11:Display temporary debugging variable

- 15 -
 Display project automatic 0：No，Automatic return；1-6delayed 10-60S
P00.25 1
Return delayed time(10/S) Back Return。

0:Rev Run Enable

P01.00 REV Rotation Select 0
1:Rev Run forbidden
Electric machinery Reversing
P01.01 0
wait for time
Deceleration Prevention
P01.02 140%
overvoltage setting(%)
Accelerated Prevention
P01.03 140%
overcurrent setting(%)
P01.04 Overcurrent Set up(%)
P01.05 Overload protection Set up(%)
Overload protection time Set
P01.06
up(s)
Undervoltage protection Set
P01.07
up(%)
Overvoltage protection Set
P01.08 160%
up(%)
After shutdown, start DC Brake
P01.09 15%
voltage Set up (%)
After shutdown, End DC Brake
P01.10 0%
voltage Set up (%)
After shutdown, DC Braking Time
P01.11 2.0
Set up
After shutdown, DC Braking
P01.12
Initial Frequency Set up
Before start, input DC brake
P01.13
voltage set up (%)
Before start, End DC Brake
P01.14
voltage Set up (%)
Before start, DC Braking Time
P01.15
Set up
Direct start Initial
P01.16 frequency(Improve starting
torque)
Direct start Initial
P01.17
frequency Hold time
power failure frequency
P01.18
decline
The power down frequency
P01.19
decline rate
P01.20 Restart No load time

- 16 -
P01.21 Restart voltage rise time

When speed up torque will

P02.00
increased
Deceleration time - Torque
P02.01
Boost
P02.02 Accelerate curve Choice
P02.03 Deceleration curve Choice
P02.04 Avoid the frequency 1
P02.05 Avoid the frequency 2
P02.06 Avoid the frequency 3
P02.07 Avoid the frequency Width
P02.08 Window frequency 1
P02.09 Window frequency 2

0：1200Bps
1：2400Bps
2：4800Bps
RS485 Communication Baud Rate
P03.00 3：9600Bps 4
4：19200Bps
5：38400Bps(For higher baud rates, please
contact the manufacturer)
P03.01 RS485 Communication Addresses 1-254 10
0: 8 bit data, 1 stop bits, odd parity
1: 8 bit data, 1 stop bits, parity check
RS485 Data Transfer Format 2: 8 bit data, 1 stop bit, no parity
P03.02 2
Options 3: 8 bit data, 2 stop bits, odd parity
4: 8 bit data, 2 stop bits, parity check
5: 8 bit data, 2 stop bit, no parity
0：Decelerating stop
RS485Communication error 1：Coasting stop
P03.03 0
handling 2：DC brake stop
3：No downtime
RS485Communication error
P03.04 500
tolerance time mS
P03.05 4-20mA Break detection time
Panel potentiometer,Lower
P03.06 0-1023 3
limit of AD norm
Panel potentiometer,Upper
P03.07 0-1023 1020
limit of AD specification
Panel potentiometer, frequency
P03.08 0.0-600.0HZ 0.0HZ
given of lower limit.

- 17 -
 Panel potentiometer,
P03.09 0.0-600.0HZ 60.0HZ
frequency given of Upper limit
0-1023,See "JP1 short circuit block
P03.10 Analog lnput 1 AD lower limit 3
configuration table"
0-1023,See "JP1 short circuit block
P03.11 Analog lnput 1 AD Upper limit 1020
configuration table"
Analog lnput 1 frequency given 0.0-600.0HZ,See "JP1 short circuit block
P03.12 0.0HZ
lower limit configuration table"
Analog lnput 1 frequency given 0.0-600.0HZ,See "JP1 short circuit block
P03.13 60.0HZ
Upper limit configuration table"
P03.14 Reserved
P03.15 Reserved
P03.16 Reserved
P03.17 Reserved
See "JP1 short circuit block configuration
P03.18 Analog output correlation
table"
See "JP1 short circuit block configuration
P03.19 Analog output gain setting
table"

Mo analog multiplier output

P04.00
frequency multiplier
P04.01 Mo1 Function Options
P04.02 Mo2 Function Options
Multi-function Relay 1 0：Get electricity in case of failure or
P04.03
Function selection lose it
Multi-function Relay 2 1：Get electricity when running, or lose
P04.04
Function selection it
2：Reserved
3：Arbitrary frequency arrival Time， have
Electric，Related to P02-10 settings
4：,The power down Time， have Electric
5：,low voltage Time， have Electric
6：,Overvoltage Time， have Electric 0
7：Overcurrent Time， have Electric
8：Nonzero velocity Time， have Electric
9：,DC brake Time， have Electric
10：Over torque Time， have Electric
11：External interrupt fault Time， have
Electric
12：Forward Time， have Electric
13：Reversal Time， have Electric
14：Move Time， have Electric

- 18 -
 15：Accelerate Time， have Electric
16：Deceleration Time， have Electric
17：Constant speed Time， have Electric
18：X1 close Time， have Electric
19：X2 close Time， have Electric
20：X3 close Time， have Electric
21：X4 close Time， have Electric
22：X5 close Time， have Electric
23：X6 close Time， have Electric
24：Forward and bus voltage greater than
400V Time， have Electric
25：Reverse and bus voltage greater than
400V Time， have Electric
Multi-function Relay 1 Action
P04.05 0-65.5 秒 0
close Delayed
Multi-function Relay 1
P04.06 0-65.5 秒 0
disconnect delay action
Multi-function Relay 1 Action
P04.07 0-65.5 秒 0
close Delayed
Multi-function Relay 1
P04.08 0-65.5 秒 0
disconnect delay action
P04.09 Stall rotor detection time 0-65.5 秒 1.0
Switch amount (Di) sampling
P04.10 0-200mS 24
time
0：Decelerating stop
1：Coasting stop
P04.11 Stopping Mode 2：Immediate DC brake shutdown 0
(deceleration time is invalid)
3：Do not shut down when power is down

PID Output Upper limit

P05.00
frequency
PID Output lower limit
P05.01
frequency
P05.02 PID Given Source
P05.03 PID Values Given
PID Output
P05.04
characteristic(FOR/REV)
PID Output
P05.05
characteristic(FOR/REV)
P05.06 PID Proportional Gain Kp
P05.07 PID Integration Time Ti

- 19 -
P05.08 PID Derivative Time Td
P05.09 PID Deviation Limit
P05.10 PID Integral upper limit
P05.11 PID Given Change Time
P05.12 PID Feedback Filter Time

P06.00 Acceleration Time

P06.01 Accel.Time 1 0.1-6553.5 2.0
P06.02 Decel. Time 1 0.1-6553.5 2.0
P06.03 Accel.Time 2 0.1-6553.5 2.0
P06.04 Decel. Time 2 0.1-6553.5 2.0
P06.05 Accel.Time 3 0.1-6553.5 2.0
P06.06 Decel. Time 3 0.1-6553.5 2.0
P06.07 Accel.Time 4 0.1-6553.5 2.0
P06.08 Decel. Time 4 0.1-6553.5 2.0
P06.09 Accel.Time 5 0.1-6553.5 2.0
P06.10 Decel. Time 5 0.1-6553.5 2.0
P06.11 Accel.Time 6 0.1-6553.5 2.0
P06.12 Decel. Time 6 0.1-6553.5 2.0
P06.13 Accel.Time 7 0.1-6553.5 2.0
P06.14 Decel. Time 7 0.1-6553.5 2.0
P06.15 Accel.Time 8 0.1-6553.5 2.0
P06.16 Decel. Time 8 0.1-6553.5 2.0
P06.17 Jog Acceleration Time 0.1-6553.5 2.0
P06.18 Jog Deceleration Time 0.1-6553.5 2.0

P07.00 Frequency 1 50.0HZ

P07.01 Frequency 2 45.0HZ
P07.02 Frequency 3 40.0HZ
P07.03 Frequency 4 35.0HZ
0.0-600.0HZ
P07.04 Frequency 5 30.0HZ
P07.05 Frequency 6 25.0HZ
P07.06 Frequency 7 20.0HZ
P07.07 Frequency 8 15.0HZ
P07.08 Frequency source selection 1 0
0: Operator board(parameter：
P07.09 Frequency source selection 2 P03.06~P03.09) 2
P07.10 Frequency source selection 3 1: Pre~set Frequency，P00.00 Set 2
P07.11 Frequency source selection 4 frequency value，Operation panel 2
P07.12 Frequency source selection 5 keyboard,Can be set directly 2
P07.13 Frequency source selection 6 2：No. X paragraph frequency P07.00~P07.07 2
3: Analog Input.：P03.10~P03.13)
P07.14 Frequency source selection 7 2
- 20 -
 4: external simulation amount 2 (VI2)
(parameter：P03.14~P03.17)
5: (Modbus Rs485)Given frequency
P07.15 Frequency source selection 8 2
6: User application program, given
frequency
Other: Reserved
P07.16 Jogging Frequency FOR 15.0HZ
0.0-600.0HZ
P07.17 Jogging Frequency REV 15.0HZ

Automatic many paragraph

P08.00
Running:Running direction
Automatic many paragraph
P08.01
Running:mode Choice
Automatic many paragraph
P08.02
Running time Units:S/M
Automatic many paragraph
P08.03 Running No.1 paragraph Running
time
Automatic many paragraph
P08.04 Running No.2 paragraph Running
time
Automatic many paragraph
P08.05 Running No.3 paragraph Running
time
Automatic many paragraph
P08.06 Running No.4 paragraph Running
time
Automatic many paragraph
P08.07 Running No.5 paragraph Running
time
Automatic many paragraph
P08.08 Running No.6 paragraph Running
time
Automatic many paragraph
P08.09 Running No.7 paragraph Running
time
Automatic many paragraph
P08.10 Running No.8 paragraph Running
time

P09.00 frequency Range(%) 0-200% 0

P09.01 frequency wave Range(%) 0-400% 200
P09.02 frequency Rise time（S) 0.1-999.9 秒 6.0 秒
P09.03 frequency decline time（S) 0.1-999.9 秒 5.0 秒
- 21 -
P10.00 Counter reload,value
P10.01 Counter current value
P10.02 Timer reload,value
P10.03 Timer current value

P11.00 Output Status

P11.01 Output Voltage (V)
P11.02 Output Current (A)
P11.03 Output Frequency (Hz)
P11.04 Current Heatsink Temperature 70

P12.00 Rated Motor Current 5.0

P12.01 Rated Motor Voltage 220
P12.02 Motor Pole number 2-100 2
P12.03 Motor no-load current 20%
Motor no-load current
P12.04 10 秒
detection time(S)
P12.05 Converter rated current(A) 5.0
P12.06 Converter rated Voltage(V) 220
P12.07 DC bus output voltage% 140
Heat sink over temperature
P12.08 70
protection point
Radiating fin temperature
P12.09 1
sensor configuration
Abnormal reset implement wait
P12.10
time
0: when the motor is running, start the fan;
after the motor stops running, the delay is
about 1 minute to close the fan;
1: when the fan action temperature point is
more than P12.12), the fan starts
1
P12.11 Fan Function Pattern immediately, and when the temperature is
lower than the fan action temperature
point, the time delay is about 1 minute and
the fan is closed;
2: unconditional forced start fan;
3: the fan does not operate;
Cooling fan operating
P12.12 45
temperature
P12.13 Fan Testing
P12.14 Bypass relay closed detection

- 22 -
P12.15 Bypass Relay delay time
Power on delay timer initial
P12.16
value（S)
Electric current sensor To
P12.17
configure
Automatic stable pressure
P12.18
function Choice
P12.19 PWM Frequency 2.0-15.0KHZ 8.0KHZ
0: three phase induction motor 1: two phase
asynchronous motor (single phase motor 90
P12.20 SVPWM model 0
degrees phase difference, no starting
capacitance)

P13.00 Software version number

P13.01 Hardware version number
P13.02 producer
P13.03 Factory year & week
Product ID (combined with
P13.04 factory year & week becomes
UIDs)
Cumulative operating time
P13.05
(hours)

Press and hold down the STOP key on the display first, then press the "up arrow" key to read all the
parameters of the converter and save them to the display box, that is, the so-called "parameter upload"
operation.
Hold down the STOP key on the display, then press the down arrow key, can be displayed in the box,
downloaded to the converter, the so-called "parameter download operation. Note that the effectiveness
of the parameters in the display box, by the operator to grasp, procedures for identification. The
operator should avoid the" Download "invalid parameter to the inverter.
The CN7 CN12 CN13 socket corresponds to the
first MODBUS communication interface, which
is generally used to connect the LK series
There are up to 2 MODBUS dedicated digital display to achieve the
communication interfaces setting and monitoring of the frequency
based on RS485, and MODBUS converter. Of course, users can also use this
Display special purpose
RTU protocol is supported, interface to achieve their own communication.
but ASCII protocol is not The communication parameters of the
supported. communication interface are fixed as: 19200
Bps8 bits, 1 stop bit, and no check bit.
Frequency converter is used as MODBUS slave
(server）, slave address is fixed at 10。

- 23 -
 The CN4 CN8 socket corresponds to the
second MODBUS communication interface, which
is generally used to connect with other user
equipments such as PC, and its communication
User communication
parameters can be configured by
P03.00-P03.04. The frequency converter is
used as the MODBUS slave (server）, the slave
address is also configurable.

X. Care & Maintenance, Fault Information and Troubleshooting

Periodical maintenances and inspections will keep your inverter in its normal state for long time.

1. Precautions about Inspection and Maintenance

• Be sure to turn off the power supply to the inverter ( L、N) first before the inspection and maintenance.
• After confirming the main circuit power supply has been turned off and the display has disappeared,
wait until the internal indicator lamp for high voltage goes out before performing the inspection and
maintenance.
• During the inspection, do not pull out or wrongly distribute the internal power supply, wires and cables.
Otherwise it will cause malfunction or damage to the inverter.
• Do not leave any screw or other part inside the inverter during the installation, or it will result
in the short circuit of circuit board.
• Keep the inverter clean, free from dust, oil mist and moisture after the installation.

2. Periodical lnspection and Maintenance ltems

• Check whether the power supply voltage conforms to the rated voltage of the inverter.(Pay special
attention to that whether there is any damage on the power supply wires and the motor.)
• Check whether the wiring terminals and the connectors are tight(Check whether the power supply wires
and terminal connection wires have any broken strand).
• Check whether there is dust, iron filings or corrosive fluid in the inverter.Measuring the insulation
impedance of the inverter is forbidden.
• Examine the output voltage, output current and output frequency of the inverter.(The measuring results
should not have too big difference.)
• Check whether the ambient temperature of the inverter is between -5°C and 40°C and whether the
installation environment has good ventilation.
• Check whether the humidity is kept below 90% (without condensation).
• Check whether the motor makes unusual noises or abnormal vibration in running.(The inverter should not
be installed in a place with high vibration.)
• Please make periodical cleaning of vent holes.

3、Fault Indication and Troubleshooting

fault phenomenon, failure code, the analysis of fault reasons and the solutions

Failure code/fault phenomenon The analysis of fault reasons and the solutions

- 24 -
Er.00 1. Check input supply voltage, ensure input voltage
Power failure, supply is between 150v and 250v. Too high input voltage will
Low-voltage
voltage is above damage converter.
140VAC 2. High inertia loads, the setting value of the
Er.01 deceleration time is too small.
supply voltage is 3. The converter is not accurate in detecting the
above 290VAC, supply voltage, the displayed converter voltage does
internal bus voltage not match with the actual supply voltage, which need
is too high Over-voltage repairing.
4. This kind of error occurs when the motor is
decelerated due to the high inertia loads, please
consider installing a suitable external braking
resistance.
Er.02 When the motor is running, great current occurs (the
actual output current is too great), please check
Great current whether the motor is short circuited, the connection
is correct and the mechanical loads is too large,
otherwise it needs repairing.
Er.03 When the motor is running, fault in external pwm
Fault in external pwm circuit occurs, turn off the power for about 1 minute,
circuit send the power to retry. If this phenomenon occurs
again, maintenance is required.
Er.04 When the motor is running, fault in the internal power
component module of the converter occurs:
1. The acceleration and deceleration time is set too
short;
2. the over current and overheating of the converter,
please check whether the motor is short circuited,
and the machine load is too large;
3. The input voltage is too high/low, or the input
IPM voltage fluctuates substantially;
alarm(short-circuit) 4.The converter does not match the motor power, or
fault in Wye-Delta;
5. Improper setting of DC injection brake parameters
（P01.09-P01.17 ;
6.Improper setting of VF parameters（P00.04-P00.12） ;
7. The cooling fan is damaged or in locked rotor, the
converter cooling is not good;
1、8. Gate driving voltage of power components is too
high or too low, which needs repairing.
Er.05 When the external input fault signal input is valid,
External input fault
the motor stops and this code is displayed, which can
signal
be eliminated after reset, having no need to repair
Er.06 Fault in internal data storage occurs, turn off the
Fault in internal data
power for about 1 minute, send the power to retry.
storage
If this phenomenon occurs again, maintenance is
- 25 -
 required.
Er.07 The internal temperature of converter is too
。
high( above 65 C）， please check:
1. When the motor is running, whether the cooling fan
stops (Note: if motor has been switched off for 1
minute, some versions of the converter cooling fan
Over temperature
will automatically stop to prolong the service life);
2. please check whether the motor is short circuited,
and the machine load is too large
3. Whether the thermal between the internal module
of converter and heat sink is good?
Er.08 Fault in internal temperature measuring circuit of
Fault in temperature
converter or the temperature sensor is not good,
measurement NTC
which need repairing.
Er.09
Er.10 Power-off prompt 1、Please check the input power supply voltage to
ensure that the input voltage is within range;
Er.11 RS485Communication Correlation with parameter P03.03n P03.04
dropped line error,
stop.
Er.12 Parameter error
Er.13
Er.14
Er.15 Motor overheating

XI. Modbus Register address-inverter parameter

correspondence table
Modbus Register address-inverter parameter correspondence table

Macro
Keep the register Corresponding frequency converter
definition /
address (16) parameters
description
0x0000 P00.00
0x0001 P00.01
… …
0x0100 P01.00
0x0101 P01.01
Power-down
… …
storage area
0x0200 P02.00
（EEPROM）
0x0201 P02.01
… …
0x0D00 P13.00
0x0D01 P13.01
… …
- 26 -
Note:
1.Modbus protocol. Only supports RTU mode, not ASCII mode.
2. Modbus keeps register address, corresponding rule with frequency converter parameter: hold high 8
bit address of register and hexadecimal, correspond to group index of frequency converter parameter;
The low 8-bit address corresponds to the number within the parameter group. For example, the address
of the holding register in hexadecimal 0 x 0c14 corresponds to the converter parameter P12.20 (the 12th
group, the 20th parameter / PWM mode).

Modbus keep register address - inverter application function corresponding

table
usRegHoldin Modbus Hold Modbus485 operating
function
gBuf[] register address command
b00:No function
b01:Stop order
bit 1:0
b10:Start order
b11:Inching (crawling) order
bit 3:2 Reserved
b00:No function
0 0x2000(8192) b01:Forward order
bit 5:4
b10:Backward order
struct
b11:Change direction
sAPP_CMD
b00:No function
living
b01:Reset one error
bit 7:6 example：
b10:Reset all errors ModbusAppCmd
b11:Reserved
Modbus485Frequency
1 0x2001(8193) x0.1HZ
command
2 0x2002(8194) Modbus485Accel.Time x0.1Second
3 0x2003(8195) Modbus485Decel. Time x0.1Second
4 0x2004(8196)
5 0x2005(8197)
6 8198
7 8199
8 8200 ErrorFlag Error code Only read
Frequency transformer’s internal
9 8201 Ms
status
10 8202 AimFreq Target frequency
11 8203 RunFreq Output frequency
12 8204 OutCurrent Output current
13 8205 RunVolt Output voltage
14 8206 MainLineVolt Bus voltage

- 27 -
15 8207 SpSeg Number of fields in multi-rate
16 8208 AccDecFlag
17 8209 AccTime Current acceleration time
18 8210 DecTime Current deceleration time
AD of external analog quantity 1
19 8211 AdvAin1
(10bit)
AD of external analog quantity 2
20 8212 AdvAin2
(10bit)
21 8213 X1-X8 status
LED_OBJ_MAP_
22 8214 Flash_reg
ADDR
23 8215 Dot_reg
24 8216 DecodeReg
25 8217 LedBuf[ 0]
26 8218 LedBuf[ 1]
27 8219 LedBuf[ 2]
28 8220 LedBuf[ 3]
29 8221 LedBuf[ 4]
30 8222 LedBuf[ 5]
31 8223 LedBuf[ 6]
32 8224 LedBuf[ 7]
33 8225 Unique_IDSum CPU Unique ID attributecode
KEY_OBJ_MAP_
34 8226 MakeKey/BreakKey
ADDR
35 8227 KeyMap
36 8228 Adv1 AD of panel potentiometer 1(10bit)
37 8229 Adv2 AD of panel potentiometer 2(10bit)
38 8230 Reversed
39 8231 Islegal Version mark
40 8232
41 8233
SprtterRunCm
42 8234
d
eSpatterStat
43 8235
us
SpatterPosit
44 8236
ion
45 8237
46 8238
47 8239
48 8240 struct
49 8241 sAPP_CMD
- 28 -
50 8242 living
51 8243 example：
52 8244 SplcAppCmd

53 8245
54 8246
55 8247
56 8248
57 8249
58 8250 struct
sAPP_CMD
59 8251
living
60 8252
example：
61 8253 SysAppCmd
62 8254
63 8255
64 8256
65 8257
66 8258 struct
sAPP_CMD
67 8259
living
68 8260
example：
69 8261 ExAppCmd
70 8262
71 8263
72 8264
73 8265
74 8266
75 8267

XII 、 Table of correspondence between Multi-Segment Speed

instruction, Frequency Segment and Parameter item
Table of correspondence between Multi-Segment Speed instruction,
Frequency Segment and Parameter item
Multistage speed Multistage speed Multistage speed Running frequency segment /
input input input corresponding parameter
X3 X2 X1
open a way open a way open a way Paragraph 1 frequency/P07.00
open a way open a way close Paragraph 2 frequency/P07.01 low
open a way close open a way Paragraph 3 frequency/P07.02 centre
open a way close close Paragraph 4 frequency/P07.03
close open a way open a way Paragraph 5 frequency/P07.04 tall
close open a way close Paragraph 6 frequency/P07.05
close close open a way Paragraph 7 frequency/P07.06
- 29 -
close close close Paragraph 8 frequency/P07.07
Wiring: COM is common end, FWD is start and stop, X1 is low speed, X2 is medium speed, X3 is high speed.
Settings: P00.01 is 1, P07.01 is low speed, P07.02 is medium speed, P07.04 is high speed,
Give an alarm ；CM1 is the common end of the relay, NO1 is normally open and NC1 is normally closed. P04.04 can set function.

XIII、JP1 short circuit block configuration

External analog input type JP1 Short-circuit block configuration
0-5V No need for short Circuit JP1
0-10V 2-3 feet of JP1 requiring short Circuit
0-20mA 2-3 feet of JP1 requiring short Circuit

XIV、Selection of Peripheral Devices and Disposition

1、Options

Description Functions
Protect the wiring of the inverter. Be sure to install a breaker at the
NFB or Ground fault
power.
interrupter for wire
Please select a ground fault circuit interrupter against high-order
connection
harmonics.
In order to prevent the braking resistor from burning out,please add an
Electromagnetic
electromagnetic contactor and connect a surge absorber to the coil when
contactor
using it.
Absorb the switching surge current from the electromagnetic contactor and
Surge absorber
control relays.
Its function of isolating the input and output of the inverter is effective
Isolating transformer
to reduce the interference to other electric devices.
DC reactor Improve the input power factor of the inverter.
Improve the input power factor of the inverter and prevent the shock of
AC reactor
surge voltage. .
Braking resistor，braking Consume the regenerating energy of the motor and shorten the ramp-down
unit time.

（1）Leakage switch
There is earth static capacity inside of the inverter and the motor as well as the input and output
leads Due to higher carrier frequency of the inverter the inverter has higher earth leakage current,
especially for the inverters of large capacity series. When using a leakage switch it may sometimes
result in the error action of the protective circuit. So when using a leakage switch attention should
be paid to its selection and the proper reduction of carrier frequency and shortening the leads,
etc.

（2）AC reactors
An AC reactor can constrict the high-order harmonic of input current of the inverter to improve
its input power factor and prevent the shock of surge. It is recommended to use an input AC reactor under
the following circumstances:

- 30 -
 a： Three-phase power supply is in unbalance.
b： Any equipment with thyristor or power factor compensation unit with switching control is connected
to the same power supply.

（3）DC reactors
It is necessary to install a DC reactor when the capacity of power supply is more than 1000 KVA
or the mains power capacity is higher than the rated capacity of the inverter. A DC reactor is also needed
for the case with higher demand on the improvement of power factor of power supply. This DC reactor can
be used together with an AC reactor to achieve the obvious effect of decreasing high order harmonic at
input. If it is necessary to install a DC reactor please contact the local distributor.

2、Disposition of Braking Resistor

Braking resistor
lnverter Special
Specification
Model Motor KW
W Ω
YL620-1.5KW-220V 100W 100Ω 1.5KW
YL620-2.2KW-220V 100W 70Ω 2.2KW
YL620-3.0KW-220V 300W 65Ω 3.0KW
YL620-4.0KW-220V 400W 45Ω 4.0KW
YL620-5.5KW-220V 800W 22Ω 5.5KW
YL620-1.5KW-380V 150W 220Ω 1.5KW
YL620-2.2KW-380V 250W 200Ω 2.2KW
YL620-3.0KW-380V 250W 180Ω 3.0KW
YL620-4.0KW-380V 300W 130Ω 4.0KW
YL620-5.5KW-380V 400W 90Ω 5.5KW
For the inverter of above 11KW to realize quick brake a braking unit must be added .

Note：
1: Please select the resistor value and operating frequency given by our company.
2: If it causes any damage to the inverter and other devices due to the use of any braking Resistor
and braking model group not supplied by our company, we will take no responsibility.
3: Be sure to consider the safety and ignitability of the environment when installing a braking
resistor.The distance to the inverter should be at least 100 mm.
4: If it is necessary to change the resistor value and power value, please contact the local distributor.5:
In need of a braking resistor a separate order must be placed. Please contact the local distributor for
details.

XV、Customer feedback proposal

- 31 -