Xinje VH6 Series User manual

Wuxi XINJE Electric Co., Ltd.
VH6series frequency convertor
User manual
Data No. INV C 04 20210120 1.0

Basic description
Thank you for purchasing Xinje VH6 series frequency converter. Please read this product manual carefully
before carrying out relevant operation.
The manual mainly provides users with relevant guidance and instructions for the correct use and
maintenance of the frequency converter. The manual involves the functions of the frequency converter
capability, usage, installation and maintenance, etc.
The contents in the manual are only applicable to the inverter products of Xinje company.
Notice to users
This manual is applicable to the following personnel:
The installation personnel of frequency converter
Engineering and technical personnel (electrical engineer, electrical operator, etc.)
The designer
Before the above personnel operate or debug the inverter, please carefully read the chapter of safety precautions
in this manual.
Statement of responsibility
Although the contents of the manual have been carefully checked, errors are inevitable, and we can not
guarantee the complete consistency.
We will check the contents of the manual frequently and make corrections in subsequent versions. We
welcome your valuable comments.
The contents described in the manual are subject to change without prior notice.
Contact us
If you have any questions about the use of this product, please contact the agent that purchased the product, or
you can contact Xinje company directly.
Tel: [phone]
Fax: [phone]
Address: 4th floor, building 7, creative industry park, 100 DiCui Road, Wuxi City, China
Post code: 214072
Website: www.xinje.com

iv
Catalog
1. PRODUCT INTRODUCTION....................................................................................................................................5
1-1. PRODUCT OVERVIEW..............................................................................................................................................5
1-1-1. Naming rule....................................................................................................................................................5
1-2. SPECIFICATION .......................................................................................................................................................6
1-2-1. Technical specification....................................................................................................................................6
1-2-2. General specification......................................................................................................................................6
1-3. PART DESCRIPTION .................................................................................................................................................9
2. INSTALLATION AND WIRING.............................................................................................................................12
2-1. INSTALLATION ENVIRONMENT .............................................................................................................................12
2-1-1. Environment requirements...........................................................................................................................12
2-1-2. Installation space and direction....................................................................................................................12
2-1-3. Single installation .........................................................................................................................................12
2-1-4. Multiple installation......................................................................................................................................13
2-1-5. Vertical installation.......................................................................................................................................13
2-2.WIRING NOTICE ....................................................................................................................................................14
2-3. MAIN CIRCUIT WIRING .........................................................................................................................................14
2-3-1. Wiring diagram .............................................................................................................................................14
2-3-2. Arrangement and description of main circuit terminals..............................................................................15
2-3-3. Wiring process of main circuit......................................................................................................................16
2-4. CONFIGURATION AND WIRING OF THE CONTROL CIRCUIT ..................................................................................17
2-4-1. Control circuit terminals...............................................................................................................................17
2-4-2. Analog I/O wiring .........................................................................................................................................19
2-4-3. Digital I/O wiring..........................................................................................................................................19
2-4-4. Communication terminal wiring ..................................................................................................................22
3. OPERATION AND APPLICATION........................................................................................................................23
3-1. OPERATION PANEL................................................................................................................................................23
3-1-1. Appearance....................................................................................................................................................23
3-1-2. Keyboard .......................................................................................................................................................23
3-1-3. LED lights.....................................................................................................................................................24
3-1-4. Operation method .........................................................................................................................................24
3-1-5. Multi-function buttons..................................................................................................................................26
3-1-6. Quick reference of parameters .....................................................................................................................27
3-2. POWER ON.............................................................................................................................................................28
3-2-1. Inspection after power on .............................................................................................................................28
3-2-2. Initial power on operation ............................................................................................................................28
3-2-3. Start to debug ................................................................................................................................................30
3-2-4. Debugging process........................................................................................................................................31
3-3. START STOP OF THE VFD......................................................................................................................................32
3-3-1. Start stop signal.............................................................................................................................................32
3-3-2. Start mode......................................................................................................................................................33
3-3-3. Stop mode......................................................................................................................................................35
3-4.VFD OPERATION FREQUENCY..............................................................................................................................36

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3-5. SWING FREQUENCY FUNCTION.............................................................................................................................36
3-6. FIXED LENGTH CONTROL .....................................................................................................................................37
3-7.VFD COUNTING FUNCTION...................................................................................................................................38
3-8. MOTOR PARAMETERSAND TUNING......................................................................................................................39
3-8-1. Motor parameter setting................................................................................................................................39
3-8-2. Motor tuning .................................................................................................................................................40
3-9. USING METHOD OF TERMINAL X..........................................................................................................................41
3-10. USING METHOD OF TERMINALY........................................................................................................................41
3-11. USING METHOD OF TERMINALAI.......................................................................................................................41
3-12. USING METHOD OF TERMINALAO .....................................................................................................................42
4. FUNCTION PARAMETERS....................................................................................................................................43
4-1. FUNCTION CODE LIST ...........................................................................................................................................43
4-2. PARAMETER EXPLANATION ..................................................................................................................................77
4-2-1. Group P0 basic operation parameter ...........................................................................................................77
4-2-2. Group P1 first motor parameters..................................................................................................................82
4-2-3. Group P2 input terminal multi-function parameters...................................................................................84
4-2-4. Group P3 output terminal multi-function parameters.................................................................................94
4-2-5. Group P4 startup brake parameters .............................................................................................................99
4-2-6. Group P5 VF parameters............................................................................................................................102
4-2-7. Group P6 vector parameters.......................................................................................................................108
4-2-8. Group P7 fault and protection.................................................................................................................... 110
4-2-9. Group P8 keyboard and display.................................................................................................................. 115
4-2-10. Group P9 communication protocol .......................................................................................................... 118
4-2-11. Group PAPID parameters of process control .......................................................................................... 119
4-2-12. Group PB multi-speed and simple PLC ...................................................................................................123
4-2-13. Group PC auxiliary function....................................................................................................................126
4-2-14. Group PE user optional parameters.........................................................................................................134
4-2-15. Group PF torque control...........................................................................................................................135
4-2-16. Group A0 fixed length, counting and swing frequency ...........................................................................136
4-2-17. Group A1 virtual IO..................................................................................................................................138
4-2-18. Group A2 second motor parameters.........................................................................................................140
4-2-19. Group AD AIAO correction parameters...................................................................................................142
4-2-20. Group U0 monitor parameters..................................................................................................................143
5. EMC...........................................................................................................................................................................145
5-1. EMC COMPLIANT INSTALLATION GUIDELINES..................................................................................................145
5-1-1. Noise suppression........................................................................................................................................145
5-1-2. Field wiring and grounding........................................................................................................................146
6. MODEL AND DIMENSION...................................................................................................................................147
6-1.VH6 SERIES VFD ELECTRICAL SPECIFICATION.................................................................................................147
6-2.VH6 SERIES VFD DIMENSION ............................................................................................................................147
6-3.ACCESSORIES SELECTION GUIDE .......................................................................................................................149
6-3-1. Accessories functions..................................................................................................................................149
6-3-2. Cable selection ............................................................................................................................................150
6-3-3. Selection guidance of circuit breaker, contactor and fuse.........................................................................152

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6-3-4. Reactor selection guide...............................................................................................................................153
6-3-5. Brake resistor selection...............................................................................................................................153
7. FAULT AND SOLUTION.......................................................................................................................................156
7-1. FAULTALARM AND SOLUTION.............................................................................................................................156
7-2. FAULT RECORD QUERY .......................................................................................................................................159
7-3. FAULT RESET.......................................................................................................................................................159
7-4.VFD COMMON FAULT ANALYSIS OF FREQUENCY CONVERTER ..........................................................................160
7-4-1. Motor not rotate ..........................................................................................................................................160
7-4-2. Motor vibration ...........................................................................................................................................161
7-4-3. Over voltage.................................................................................................................................................161
7-4-4. Motor overheat............................................................................................................................................162
7-4-5. Over current ................................................................................................................................................163
7-4-6. VFD overheat..............................................................................................................................................164
7-4-7. The motor stalls during acceleration and deceleration..............................................................................165
7-4-8. Under voltage..............................................................................................................................................165
8. MAINTENANCE......................................................................................................................................................166
8-1. ROUTINE MAINTENANCE ....................................................................................................................................166
8-2. REGULAR MAINTENANCE ...................................................................................................................................166
8-3.WARRANTY OF FREQUENCY CONVERTER...........................................................................................................167
APPENDIX....................................................................................................................................................................168
APPENDIXA. EXTENSION CARD ................................................................................................................................168
Appendix A-1. Extension card functions..............................................................................................................168
Appendix A-2. Extension card installation...........................................................................................................169
Appendix A-3. IO extension card..........................................................................................................................169
Appendix A-3-1. VH6-A100 (slot AIO card)........................................................................................................169
Appendix A-3-2. VH6-B100 (slot B IO card)........................................................................................................170
Appendix A-4. Communication extension card....................................................................................................171
Appendix A-4-1. VH6-CC100 (EtheCAT communication card) ..........................................................................171
Appendix A-4-2. VH6-CN100 (CANopen communication card).........................................................................172
Appendix A-5. Encoder extension card.................................................................................................................172
Appendix A-5-1. VH6-DM100 (multi-function incremental PG card)................................................................172
Appendix A-5-2. VH6-DM200 (simple incremental PG card) .............................................................................174
APPENDIX B. COMMUNICATION PROTOCOL..................................................................................................176
Appendix B-1. Communication protocol overview...............................................................................................176
Appendix B-2. Communication protocol explanation..........................................................................................176
Appendix B-2-1. Communication protocol mode.................................................................................................176
Appendix B-2-2. Communication port..................................................................................................................176
Appendix B-3. Modbus-RTU protocol ..................................................................................................................176
Appendix B-3-1. Character structure....................................................................................................................176
Appendix B-3-2. Communication data structure..................................................................................................177
Appendix B-3-3. Communication protocol parameter address............................................................................178

1
Attention
Safety precautions
(1) Definition of safety information
Notice
Steps taken to ensure proper operation.
Danger
If you do not comply with the relevant requirements, it will cause serious personal
injury, or even death.
Warning
Failure to comply with the requirements may result in personal injury or equipment
damage.
(2) Safety notice
Unpacking check
Notice
1. Before unpacking, please check whether the outer package of the product is in good condition, and whether
there is damage, moisture, deformation, etc.
2. Before unpacking, please check whether the external model identification of the packing box is consistent with
that of the ordered model.
3. When unpacking, please check the surface of products and accessories for damage, corrosion, bruise, etc.
4. After unpacking, please check whether the product name plate label is consistent with the external model label.
5. After unpacking, check whether the internal accessories are complete, including operation panel and expansion
card.
Note: If any of the above five points appear during unpacking, please contact the local Xinje office or Xinje dealer
in time, and we will solve the problem for you as soon as possible.
Installation
Notice
1. When carrying, please hold the bottom of the machine.
If you only hold the panel, there is a risk that the main body will fall and hurt your feet.
2. Please install it on the plate of metal and other non combustible materials.
If it is installed on flammable materials, there is a risk of fire.
3. When more than two inverters are installed in the same control cabinet, please set the cooling fan and keep the
air temperature at the air inlet below 40 ℃.
Due to overheating, it can cause fire and other accidents.

2
Wiring
Notice
1. Please confirm whether the rated voltage of AC main circuit power supply is consistent with that of frequency
converter.
Danger of injury and fire.
2. Do not do voltage withstand test on the inverter.
Will cause damage to semiconductor components, etc.
3. Please connect the brake resistor or brake unit according to the wiring diagram.
There is a risk of fire.
4. Please use the screw driver with specified torque to fasten the terminal.
There is a risk of fire.
5. Do not connect the input power line to the output U, V and W terminals.
If the voltage is applied to the output terminal, the inverter will be damaged internally.
6. Do not connect the phase-shifting capacitor and LC / RC noise filter to the output circuit.
It will cause internal damage to the inverter.
7. Do not connect the electromagnetic switch and contactor to the output circuit.
When the frequency converter is running with load, the surge current generated by the action of electromagnetic
switch and electromagnetic contactor will cause the over-current protection circuit of the frequency converter to
act.
8. Do not remove the front panel cover.
May cause internal damage to the inverter.
Danger
1. Before wiring, please make sure that the input power has been cut off.
Danger of electric shock and fire.
2. Ask electrical engineering professionals to do wiring operation.
Danger of electric shock and fire.
3. The grounding terminal must be reliably grounded.
Danger of electric shock and fire.
4. After the emergency stop terminal is connected, be sure to check whether its action is effective.
There is a risk of injury. (the responsibility for wiring shall be borne by the user)
5. Do not touch the output terminal directly, do not connect the output terminal of the inverter with the cover, and
do not short circuit between the output terminals. There is danger of electric shock and short circuit.
6. After cutting off the AC power supply, before the indicator light of the AC motor driver goes out, it means that
there is still high voltage inside the AC motor driver, which is very dangerous. Please do not touch the internal
circuit and components.

3
Maintenance and inspection
Notice
1. The keyboard, control circuit board and driver circuit board are equipped with CMOS integrated circuits.
Please pay special attention when using.
If you touch the circuit board directly with your fingers, static induction may damage the integrated chip on the
circuit board.
2. Do not change the wiring or remove the terminal wiring during power on. Do not check the signal during
operation. It will damage the equipment.
Danger
1. Do not touch the terminal of the inverter, there is high voltage on the terminal.
Danger of electric shock.
2. Before power on, be sure to install the terminal cover. When removing the cover, be sure to disconnect the
power supply.
Danger of electric shock.
3. Non professional technicians are not allowed to carry out maintenance and inspection.
Danger of electric shock.

4
Precautions for use
Constant torque and low speed operation
When the inverter with ordinary motor runs at low speed for a long time, the motor life will be affected due to
the poor heat dissipation effect. If low speed constant torque long-term operation is needed, special frequency
conversion motor must be selected.
Confirmation of motor insulation
When using VH6 series frequency converter, please confirm the insulation of the motor before connecting the
motor, so as to avoid damaging the equipment. In addition, when the motor is in a bad environment, please
check the insulation of the motor regularly to ensure the safe operation of the system.
Negative torque load
For such occasions as lifting the load, there will often be negative torque, and the frequency converter will trip
due to over-current or over-voltage fault. At this time, the selection of braking resistance should be considered.
Mechanical resonance point of load device
In a certain output frequency range, the inverter may encounter the mechanical resonance point of the load
device, which must be avoided by setting the jump frequency.
Capacitors or varistors to improve power factor
As the output voltage of the frequency converter is pulse wave type, if the output side is installed with
capacitors to improve the power factor or varistors for lightning protection, it will cause the frequency converter
fault trip or device damage. Please remove it. In addition, it is recommended not to add air switch and contactor
and other switching devices on the output side.
The use of derating when setting the fundamental frequency
When the fundamental frequency is lower than the rated frequency, please pay attention to the derating of the
motor to avoid overheating and burning.
Operate at frequency above 50 Hz
If the frequency exceeds 50 Hz, in addition to considering the vibration and noise increase of the motor, it is
also necessary to ensure the speed range of the motor bearing and mechanical device, and make sure to check in
advance.
Electronic thermal protection value of motor
When selecting the suitable motor, the inverter can implement thermal protection for the motor. If the rated
capacity of motor and frequency converter does not match, the protection value must be adjusted or other
protection measures must be taken to ensure the safe operation of motor.
Altitude and derating
In the area with altitude more than 1000 meters, the heat dissipation effect of frequency converter becomes
worse due to the thin air, so it is necessary to reduce the rating.
About the protection level
The protection grade IP20 of VH6 series frequency converter is achieved when the status display unit or
keyboard is selected.
Notes on scrapping
When scrapping the inverter, please pay attention to:
When the electrolytic capacitors in the main circuit and printed circuit board are burned, they may explode.
Toxic gases are produced when plastic parts are burned. Please treat as industrial waste.

5
1. Product introduction
1-1. Product overview
REST
JOG/REV
ENT/DATA
MENU/ESC
STOP
RUN
15 min
1.安装、运行前请务必阅读使用说明书,否则会有电击危险！
2.在通电状态下和切断电源15分钟以内，请勿拆下盖板！
3.进行维护、检查及接线时，请在切断输入侧和输出侧电源后，等待15分钟，
待电源指示灯彻底熄灭后开始作业。
VH6 series is a full function closed-loop vector inverter developed
by Xinje company. The product adopts vector control technology,
which realizes the open-loop vector control and closed-loop vector
control of asynchronous and synchronous motor, and also
strengthens the reliability and environmental adaptability of the
product.
VH6 series frequency converter provides a wealth of expansion cards
for customers to meet the diverse needs.
1-1-1. Naming rule
VH 6 –4 5P5 - B
① ② ③ ④ ⑤
①
Product identification
VH: General purpose inverter
②
Product series
6: 6 series full function closed-loop vector inverter
③
Input voltage level
4: AC 380V
④
Power level
5P5: 5.5KW
011: 11KW
The decimal point is represented by P
⑤
Brake unit
B: built-in brake unit
Vacant: none

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1-2. Specification
1-2-1. Technical specification
Model VH6-4_ _ _-B
5P5
7P5
011
015
018
022
030
Adaptive motor (KW)
5.5
7.5
11.0
15.0
18.5
22.0
30.0
Input rated current (A)
14.6
20.5
26.0
35.0
38.5
46.5
62
Power supply capacity
(KVA)
8.9
11.0
17.0
21.0
24.0
30.0
40.0
Output rated current (A)
13.0
17.0
25.0
32.0
37
45
60
1-2-2. General specification
Item
Specification
Input
Rated voltage,
frequency
Three phase 380V: three phase 380V, 50Hz/60Hz
Allowable voltage
fluctuation range
-15%~+15%, voltage unbalance rate <3%
Output
Voltage
0~input voltage
Frequency
0~500Hz
Control
Control motor type
Asynchronous motor, permanent magnet synchronous motor, variable
frequency motor
Control performance
Vector control with speed
sensor (FVC)
Vector control without
speed sensor (SVC)
V/F control
(VVF)
Speed accuracy
±0.2%
±0.5%
±1%
Speed fluctuation
±0.2%
±0.3%
±0.5%
Speed range
1: 2000
1: 100
1: 50
Startup torque
0Hz: 180%
0.5Hz: 150%
1.0Hz: 150%
Torque accuracy
±5% of rated torque
±10% of rated torque
//
Torque response
≤10ms
≤20ms
//
Overload ability
150% of rated current: 60s
180% of rated current: 3s
Frequency accuracy
Low frequency operation mode: 0.01Hz
High frequency operation mode: 0.1Hz
Frequency resolution
Low frequency operation mode: digital setting--0.01Hz,
Analog setting –max frequency×0.1%
High frequency operation mode: digital setting--0.1Hz,
analog setting-- max frequency ×0.1%
Control
terminal
input
Digital input channel
Up to 7 channels of digital input X. Card A has 4 channels (X1-X4) as
standard, and the resolution is no more than 2ms. Card B can expand 3
channels (X5-X7). The X4 terminal can support the maximum 50 kHz
high-speed pulse input
Analog input channel
Up to three channels of analog input AI are supported. Card A is equipped
with two channels (AI1, AI2) as standard, and the resolution is no more

7
Item
Specification
than 20mV. Card B can expand one channel (AI3). AI1 and AI2 support 0 ~
10V or 0 ~ 20mA input, AI3 supports -10V ~ 10V input and can be used as
PT100 input
Control
terminal
output
Digital output channel
Up to 4 channels of digital output Y, card A is equipped with 1 channel
(Y1) + 1 channel (TA1TB1TC1) as standard, and card B is expandable with
1 channel (Y2) + 1 channel (TA2TB2TC2).Y2 terminal can support the
maximum 50 kHz high-speed pulse output
Analog output
channel
Up to two channels of analog output AO are supported, including one
channel (AO1) for card A and one channel (AO2) for card B. AO1 to AO2
can output 0 ~ 10V or 0 ~ 20mA
Function
Startup command
setting
Communication setting (Modbus, CANopen, EtherCAT), operate panel
setting, terminal setting
Frequency setting
mode
Communication setting (Modbus, CANopen, EtherCAT), operate panel
setting, terminal setting, analog AI setting, multi-speed setting, simple PLC
setting, PID setting, main and auxiliary seting
Typical function
Frequency main and auxiliary operation, reverse inhibition, torque boost,
nine kinds of V/F curve settings, five segments ofAI curve settings,
acceleration and deceleration curve settings, terminal delay and filtering,
terminal multi-function input and output, DC braking, energy consumption
braking, inching operation, 16 segments of speed, built-in two channels of
PID, speed tracking restart, carrier modulation, fault recording, fault self
reset, pre-excitation start, 30 groups of user defined parameters
Important function
Carrier modulation, torque control, motor auto-tuning, current limiting
control, over-voltage control, under voltage control, speed tracking, droop
control, vibration suppression, over-voltage and over-current stall control,
automatic voltage regulation (AVR), automatic energy-saving operation, etc
Protection function
Power on motor short-circuit detection, input and output phase loss
protection, over-current protection, over-voltage protection, under voltage
protection, overheat protection, overload protection, under load protection,
over-current and voltage stall protection, relay closing protection, terminal
protection, instantaneous power failure non stop, etc
Energy consumption
braking
380V level driver: action voltage of brake unit: 650~750V
5.5kw ~ 30kw power level is equipped with built-in braking unit as
standard, which only needs to connect braking resistor between P+ and PB
DC reactor
18.5kw and above are built-in DC reactors
Common DC bus
When the frequency converter decelerates, it shares the regenerative
energy, improves the braking ability, achieves the purpose of energy saving
and saves the additional space and cost required by the resistance
Special
functions
Multi-bus
Main unit Modbus, extensible EtherCAT and CANopen
Multi-encoder
Differential input encoder, OC input encoder and resolver transformer
LCD panel
LCD display, parameter setting, status monitoring, parameter copy, fault
analysis and location, program download, mass storage of parameters
Non stop when
instantaneous power
failure
In case of instantaneous power failure, the load feedback energy
compensates for the decrease of voltage and keeps the inverter running for
a short time

8
Item
Specification
Timing control
Timing control function: the time range is 0.1Min~6500.0Min
Multi-motor switching
Two sets of motor parameters can realize the switching control of two
motors
Motor overheat
protection
AI3 supports PT100 sensor function
Flexible and
diversified terminal
functions
Multi function terminal X has 51 types, Y has 41 types, AO has 19 kinds of
logic function selection, meet the general inverter control function
requirements
Communication
customization
parameters
It is convenient for users to read and write the inverter parameters
continuously
Software
Rich background monitoring function, convenient for field data collection
and debugging
Display
and
keyboard
Keyboard display
It can display the set frequency, output frequency, output voltage, output
current, input and output status and other parameters
Button locking
Realize the partial or total locking of keys to prevent false triggering
Parameter copy
Standard LED single display numeric keyboard, optional LCD English
display keyboard (parameter download)
Optional accessories
LCD keyboard, mainstream protocol communication card (EtherCAT,
CANopen), encoder PG card (incremental pulse, resolver)
Environ
ment
Using place
Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil
mist, water vapor, dripping or salt, etc
Altitude
Below 1000 meters. (derating is required when the height is higher than
1000m, and the output current will be reduced by about 10% of the rated
current when the height is increased every 1000m.)
Ambient temperature
-10℃~+40℃(When the ambient temperature is between 40℃and 50℃,
please reduce the rating or enhance the heat dissipation)
Ambient humidity
Less than 95%RH, no condensation
Vibration
Less than 5.9 m/s²(0.6G)
Storage temperature
-40℃~+70℃
Protection level
IP20
Cooling mode
Forced air cooling
Installation mode
Wall mounted and embedded

9
1-3. Part description
VH6-45P5-B/VH6-47P5-B

10
VH6-4011-B/VH6-4015-B

11
VH6-4018-B/VH6-4022-B/VH6-4030-B

12
2. Installation and wiring
2-1. Installation environment
2-1-1. Environment requirements
It should be installed in a well ventilated indoor place, and the ambient temperature should be within the
range of -10°C ~ 40°C. If the temperature exceeds 40°C, it needs external forced cooling or derating.
Avoid installation in places with direct sunlight, dusty, floating fiber and metal powder.
It is strictly forbidden to install in places with corrosive and explosive gas.
The humidity should be lower than 95% RH without condensation.
It is installed in the place where the fixed vibration is less than 5.9m/s²(0.6G).
Be far away from EMI sources and other electronic equipment sensitive to EMI.
2-1-2. Installation space and direction
Generally, it should be installed vertically.
Minimum requirements for installation spacing and distance.
When multiple frequency converters are installed up and down, the middle part shall be equipped with
guide plate.
2-1-3. Single installation
A
AC
C
B B
Note: the distance of A and B is more than 50 mm, and the distance of C is more than 100 mm.

13
2-1-4. Multiple installation
A
AC
C
B B
D
Note: the distance of A and B is more than 50mm, and the distance of C and D is more than 100mm.
2-1-5. Vertical installation
Note: when installing vertically, the wind shield must be added, otherwise it will cause mutual influence
between multiple inverters, resulting in poor heat dissipation.

14
2-2. Wiring notice
Ensure that the power supply has been completely cut off for more than 15 minutes before wiring,
otherwise there is a risk of electric shock.
It is strictly forbidden to connect the power cable with the output terminal U, V and W of the frequency
converter.
There is leakage current in the inverter itself. In order to ensure safety, the inverter and motor must be
grounded safely. Generally, the diameter of grounding wire is more than 3.5mm²copper wire, and the
grounding resistance is less than 10Ω.
The inverter has passed the withstand voltage test before leaving the factory, and the user cannot carry out
the withstand voltage test on the inverter.
The electromagnetic contactor, absorption capacitor or other resistance capacitance absorption device shall
not be installed between the frequency converter and the motor.
In order to provide the convenience of input side over-current protection and power failure maintenance,
the frequency converter shall be connected with the power supply through the circuit breaker.
The input and output circuits of control terminals shall be connected with twisted wires or shielded wires
of more than 0.75mm². One end of the shielding layer shall be suspended, and the other end shall be
connected with the grounding terminal PE of frequency converter, and the wiring length shall be less than
50m.
Ensure that the power supply of the inverter has been completely cut off, all LED indicators of the
operation keyboard are off, and wait for more than 15 minutes before wiring operation.
The internal wiring can be started only after the DC voltage between P+ and P- of the internal electrolytic
capacitor of the frequency converter is reduced to less than DC36V.
The wiring operation can only be carried out by trained and authorized qualified professionals.
Before power on, pay attention to check whether the voltage level of the frequency converter is consistent
with the supply voltage, otherwise it may cause casualties and equipment damage.
2-3. Main circuit wiring
2-3-1. Wiring diagram
Notice
Danger