ZBLD.C20 Keyboard Suppliers

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Technical specifications

Function description




Input voltage

DC24V~48V、 AC220V(Type correlation)

Input current

Type correlation

basic function

Driving mode

Square wave

Control mode

Open-loop control、Closed-loop control

Maximum output speed

Closed- loop:3000RPM  Open-loop:12000RPM

Start stop control

Keyboard control、
Terminal control、RS485communication

Speed setting

keyboard、Internal analog AI1、External analog AI2、Multistage speed、485 communication

Carrier frequency


Speed ratio


Acceleration and deceleration

Linear acceleration and deceleration time adjustable

Electronic brake

Adjustable braking current

Point control

Inching frequency adjustable

Simple and easy PLC

Mode: support single operation, cyclic operation and other automatic operation modes

Multi section speed operation

Up to 16 segment speed operation through terminals

Bus communication

Bus communication

Operation control

Command source

Keyboard setting, control terminal setting and communication setting

Velocity source

Keyboard digital setting, analog voltage setting, multi segment speed setting, communication setting, HDI frequency setting, simple PLC setting

Multi function input terminal

5-way switch value input (Di1 ~ Di5), function configurable
NPN input, some models support PNP input

Multi function output terminal

2-way switch output (Do1 ~ DO2), function configurable

Analog input terminal

1 internal analog Ai1 input (model with analog potentiometer)1 external analog AI2 input, voltage 0 ~ 5V (default) or 0-10V

Communication terminal

One channel of RS485 communication (a + / B -) with a baud rate of 19200bps

Operation display

Digital tube display

Display parameters: speed, voltage, current

Keyboard function settings

Start stop control, function code parameter setting

Protection function

Short circuit detection, output phase loss protection, over-current protection, over-voltage protection, under voltage protection
Overheat protection, overload protection, over temperature protection


Installation mode

Wall mounted installation

Operating ambient temperature

-10~50℃,40℃Use of above derating

Cooling mode

Natural cooling

EMC Wave filter

External location

Product model

The product model can be found on the nameplate of the drive, and the basic information of the drive can be learned through the product model。





Z:           ZD-motor


BLD:        Brushless drive


C20:        C20 series


400:         Maximum power400W


L:   low pressure DC24~48V  
L1:  low pressure DC12V
L2:  low pressure DC24V          
H:   High pressure AC220V
D:   Band number display
R:   With RS485 communication
C:   Communication with CAN

Keyboard introduction

Serial number




Digital display area

5-digit nixie tube, displaying function code, operation parameters and fault alarm



Status indicator


Off: shutdown status; flash: parameter identification; on: operation status


Off: forward; on: reverse


Off: keyboard control; flash: terminal control; on: communication control


Off: no fault; flash: warning state; on: fault state


Unit indicator


Frequency unit


Current unit


Voltage unit


Rotational speed unit



Button area


Programming key

First level menu entry or exit


Determination key

Step by step enter the menu screen and confirm the setting parameters

Increment key

Increment of data or function code

Decreasing key

Decrement of data or function code


Right shift key

In the shutdown and operation display interface, you can move right to cycle to select the display parameters; when you modify the parameters, you can select the modification bit of the parameters


Click key

Start jog operation (jog key is only available for external keyboard)


Run key

Start operation


Stop / reset key

In the running state, it is used for shutdown operation
In case of fault state, it is used for reset operation

Keyboard Operation

The driver has three-level operation menus, which are respectively:
1、Function code group number (primary menu):F00;
2、Function code label (secondary menu):F00.00;
3、Function code value (Level 3 menu):50.00Hz。

In the three-level menu state, if the parameter does not flash, it means that the function code cannot be modified. The possible reasons are:

1)The function code is read-only. Such as operation frequency, fault code;
2)Function code is shutdown writable parameter, which can be modified only after shutdown.

Function Code

The parameters of C20 drive are grouped by function, there are 11 groups from F00 to F10, and other groups are not shown. Each function group includes several function codes.
Attribute description: "R / W" is readable and writable, "R / w *" is shutdown readable and writable, "ro" is read-only, "n" is reserved.

parameter Name Set scope Default value attribute
F00 Basic function group
F00.00 Speed control mode 0:Test mode 3 R/W*
1:Holzer's ring opening
2:Holzer closed loop
3:Dial switch setting (some models SW1 is valid)
F00.01 Operation instruction selection 0:Keyboard operation command channel (LED off) 3 R/W
1:Terminal operation command channel (LED flashing)
2:Communication operation command channel (LED on)
3:Dial switch setting (some models SW3 is valid)
F00.02 Speed given selection 0:Keyboard number setting 5 R/W
1:Analog Ai1 setting (knob potentiometer)
2:Analog AI2 setting (external voltage)
3:Modbus communication setting
4:Multi segment speed setting
5:Dial switch setting (some models SW2 and SW3 are valid)
6:Simple PLC setting (group f04)
7:High speed pulse input setting (f05.00 selects HDI)
8:Can communication setting (valid for some models)
F00.03 Upper limit of operation frequency F00.04~500.00Hz 250.00Hz R/W*
F00.04 Lower limit of operating frequency 0.00Hz~F00.03(Maximum frequency) 5.00Hz R/W*
F00.05 Communication operation command channel selection 0:MODBUSCommunication channel 0 R/W*
1:CANCommunication channel (reserved)
F00.06 Polar logarithm setting 0:Function code setting(F02.05) 1 R/W*
Choice 1:Dial switch setting (valid for some models)
F00.07 Current setting selection 0: function code setting (f02.04) 1 R/W*
1: Analog setting (valid for some models)
F00.08 Acceleration and deceleration time 0: function code setting (f00.11, f00.12) 1 R/W*
set selection 1: Analog setting (valid for keyboard and terminal)
F00.09 Inching set frequency 0.00 Hz~F00.03(Maximum frequency) 10.00Hz R/W
F00.10 Keyboard setting frequency 0.00 Hz~F00.03(Maximum frequency) 250.00Hz R/W
F00.11 Acceleration time1 0.1~600.0s 1.0s R/W
F00.12 Deceleration time1 0.1~600.0s 1.0s R/W
F00.13 Running direction selection 0: run in default direction 0 R/W
1: Running in the opposite direction
2: Prohibit reverse operation
F00.14 Carrier frequency setting 8.0~20.0kHz Type determination R/W*
F00.15 Restore defaults selection 0: no operation 0 R/W*
1: Restore defaults
F01 Start stop control group
F01.05 Shutdown mode selection 0: slow down 1 R/W
1: Free parking
F01.06 Positive and negative turning dead zone 0.000~9.999s 0.200s R/W
F01.07 Reserve 0~1 0 R/W*
F1.08 Electronic brake 0.1%~200.0% 5.00% R/W
Current limiting point
F01.09 Electronic brake adjustment time 0.1~999.9s 5.0s R/W
F01.10 Stopping speed 0.00~50.00Hz Valid during deceleration and shutdown 0.20Hz R/W
F01.11 Forward and reverse switching limit frequency 0.0~500.0Hz Valid during deceleration and shutdown 50.0Hz R/W
F01.12 Electronic brake torque holding time 0.1~600.0s 0.0s R/W
F01.13 Deceleration stop brake enable 0: not enabled 1 R/W
1: Brake when enabling deceleration and stop (effective when f01.05 = 0)
F01.14 Deceleration ratio molecule 1~9999 1 R/W
F01.15 Reduction ratio denominator Display speed = motor speed / (reduction ratio numerator / reduction ratio denominator) 1 R/W
F02 Motor parameter group
F02.00 Rated power of motor 15~2200W Type determination R/W*
F02.01 Rated frequency of motor 0.01Hz~500Hz Type determination R
F02.02 Rated speed of motor 1~9999rpm Type determination R
F02.03 Rated voltage of motor 0~1200V Type determination R
F02.04 Rated current of motor 0.8~999.9A Type determination R/W*
F02.05 Pole pairs of motor 1~20 5 R/W*
F02.06 Motor torque increase 0.0%~20.0% 3.00% R/W
F02.07 Motor torque up cut-off 0.0%~50.0% 20.00% R/W
F03 Control parameter group
F03.00 Reserve   Reserve 16 N
F04 Simple PLC and multi section speed group
F04.00 Simple PLC mode 0: shut down after one operation 0 R/W
1: Keep the final value running after one operation
2: Cyclic operation
3 ~ n: shut down after n-1 cycle operation, nmax 9999
F04.01 Multistage speed0 -100.0~100.0% 0.00% R/W
F04.02 Multistage speed1 -100.0~100.0% 0.00% R/W
F04.03 Multistage speed2 -100.0~100.0% 0.00% R/W
F04.04 Multistage speed3 -100.0~100.0% 0.00% R/W
F04.05 Multistage speed4 -100.0~100.0% 0.00% R/W
F04.06 Multistage speed5 -100.0~100.0% 0.00% R/W
F04.07 Multistage speed6 -100.0~100.0% 0.00% R/W
F04.08 Multistage speed7 -100.0~100.0% 0.00% R/W
F04.09 Multistage speed8 -100.0~100.0% 0.00% R/W
F04.10 Multistage speed9 -100.0~100.0% 0.00% R/W
F04.11 Multistage speed10 -100.0~100.0% 0.00% R/W
F04.12 Multistage speed11 -100.0~100.0% 0.00% R/W
F04.13 Multistage speed12 -100.0~100.0% 0.00% R/W
F04.14 Multistage speed13 -100.0~100.0% 0.00% R/W
F04.15 Multistage speed14 -100.0~100.0% 0.00% R/W
F04.16 Multistage speed15 -100.0~100.0% 0.00% R/W
F04.17 Segment 0 running time 0.0~999.9s(m) 0.0s R/W
F04.18 Segment 1 running time 0.0~999.9s(m) 0.0s R/W
F04.19 Segment 2 running time 0.0~999.9s(m) 0.0s R/W
F04.20 Segment3 running time 0.0~999.9s(m) 0.0s R/W
F04.21 Segment 4 running time 0.0~999.9s(m) 0.0s R/W
F04.22 Segment 5 running time 0.0~999.9s(m) 0.0s R/W
F04.23 Segment 6 running time 0.0~999.9s(m) 0.0s R/W
F04.24 Segment 7 running time 0.0~999.9s(m) 0.0s R/W
F04.25 Segment 8 running time 0.0~999.9s(m) 0.0s R/W
F04.26 Segment 9 running time 0.0~999.9s(m) 0.0s R/W
F04.27 Segment 10 running time 0.0~999.9s(m) 0.0s R/W
F04.28 Segment 11 running time 0.0~999.9s(m) 0.0s R/W
F04.29 Segment 12 running time 0.0~999.9s(m) 0.0s R/W
F04.30 Segment 13 running time 0.0~999.9s(m) 0.0s R/W
F04.31 Segment 14 running time 0.0~999.9s(m) 0.0s R/W
F04.32 Segment 15 running time 0.0~999.9s(m) 0.0s R/W
F04.33 PLC restart mode selection 0: rerun from the first segment 0 R/W*
1: Continue operation from the phase frequency at the time of interruption
F04.34 Multi period time unit selection 0:Second(s)                    0 R/W*
F05 Input terminal parameter group
F05.00 HDI Functional selection 0: Di3 as normal IO input 0 R/W*
1: Di3 as HDI high speed pulse input
F05.01 DI1 Terminal function selection 0: Nothingness function 1 R/W*
1: Forward turn operation
2: Reverse operation
3: Three wire operation control
4: Positive turning point motion
5: Reversal point movement
6: Free parking
7: Fault reset
8: Electronic brake
9: External fault input
F05.02 DI2 Terminal function selection 10~13:Reserve 2 R/W*
F05.03 DI3 Terminal function selection 14:Positive turn limit 4 R/W*
F05.04 DI4 Terminal function selection 15:Inversion limit 7 R/W*
F05.05 DI5 Terminal function selection 16:Multistage speed 1 0 R/W*
F05.06 DI6 Terminal function selection 17:Multistage speed 2 0 R/W*
F05.07 DI7 Terminal function selection 18:Multistage speed 3 0 R/W*
F05.08 DI8 Terminal function selection 19:Multistage speed 4 0 R/W*
F05.09 Reserve Others: reserved 0 R/W*
F05.10 Input terminal polarity selection 0x000~0x1FF 0x000 R/W
F05.11 On off filtering time 0.000~1.000s 0.010s R/W
F05.12 Virtual terminal settings 0x000~0x10F (0: forbidden, 1: enabled) 0x000 R/W*
Bit0: di1 virtual terminal
Bit1: di2 virtual terminal
BIT2:DI3  virtual terminal
BIT3:DI4  virtual terminal
BIT4:DI5  virtual terminal
BIT5:DI6  virtual terminal
BIT6:DI7  virtual terminal
BIT7:DI8  virtual terminal子
F05.13 Terminal control operation mode 0: two wire control 1 0 R/W*
1: Two wire control 2
2: Three wire control 1
3: Three wire control 2
F05.14 DI1 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.15 DI1 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.16 DI2 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.17 DI2 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.18 DI3 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.19 DI3 Terminal off delay time  0.000~9.999s 0.000s R/W
F05.20 DI4 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.21 DI4 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.22 DI5 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.23 DI5 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.24 DI6 Terminal closing delay time  0.000~9.999s 0.000s R/W
F05.25 DI6 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.26 DI7 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.27 DI7 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.28 DI8 Terminal closing delay time 0.000~9.999s 0.000s R/W
F05.29 DI8 Terminal off delay time 0.000~9.999s 0.000s R/W
F05.30 Reserve 0.000~9.999s 0.000s R/W
F05.31 Reserve 0.000~9.999s 0.000s R/W
F05.32 AI1 Lower limit value 0.00V~F05.34 0.50V R/W
F05.33 AI1 Lower limit corresponding setting -300.0%~300.0% 0.00% R/W
F05.34 AI1 Upper limit value F05.32~10.00V 8.50V R/W
F05.35 AI1 Upper limit corresponding setting -300.0%~300.0% 100.00% R/W
F05.36 AI1 Input filter time 0.000s~9.999s 0.030s R/W
F05.37 AI2 Lower limit value 0.00V~F05.39 0.20V R/W
F05.38 AI2 Lower limit corresponding setting -300.0%~300.0% 0.00% R/W
F05.39 AI2 Upper limit value  F05.37~10.00V 4.80V R/W
F05.40 AI2 Upper limit corresponding setting -300.0%~300.0% 100.00% R/W
F05.41 AI2 Input filter time 0.000s~9.999s 0.030s R/W
F05.42 AI3 Lower limit value 0.00V~F05.44 0.50V R/W
F05.43 AI3 Lower limit corresponding setting -300.0%~300.0% 0.00% R/W
F05.44 AI3 Upper limit value F05.42~10.00V 8.50V R/W
F05.45 AI3 Upper limit corresponding setting -300.0%~300.0% 100.00% R/W
F05.46 AI3 Input filter time 0.000s~9.999s 0.030s R/W
F05.47 AI4 Lower limit value 0.00V~F05.49 0.50V R/W
F05.48 AI4 Lower limit corresponding setting -300.0%~300.0% 0.00% R/W
F05.49 AI4 Upper limit value F05.47~10.00V 8.50V R/W
F05.50 AI4 Upper limit corresponding setting -300.0%~300.0% 100.00% R/W
F05.51 AI4 Input filter time 0.000s~9.999s 0.030s R/W
F05.52 HDI Lower frequency value 0.00KHZ~F05.54 0.00KHZ R/W
F05.53 HDI Lower limit corresponding setting -100.0%~100.0% 0.00% R/W
F05.54 HDI Upper frequency value F05.52~20.00KHZ 19.99KHZ R/W
F05.55 HDI Upper limit corresponding setting -100.0%~100.0% 100.00% R/W
F05.56 HDI 0.000s~9.999s 0.030s R/W
Input filter time
F06 Output terminal parameter group
F06.00 Reserve 0~1 0 R/W*
F06.01 DO1 Output selection 0: invalid 5 R/W
1: In operation
2: Forward running
3: Reverse running
4: Inching operation
5: Drive failure
6: Overload warning
7: Under load warning
8: Communication virtual terminal output
F06.02 DO2 Output selection 9: Low bus voltage 10 R/W
F06.03 DO3 Output selection 10: Speed output (Hall signal) 0 R/W
F06.04 DO4 Output selection Others: reserved 0 R/W
F06.05 Output terminal polarity selection 00~0F 0 R/W
F06.06 DO1 On delay time 0.000~9.999s 0.000s R/W
F06.07 DO1 Disconnection delay time 0.000~9.999s 0.000s R/W
F06.08 DO2 On delay time 0.000~9.999s 0.000s R/W
F06.09 DO2 Disconnection delay time 0.000~9.999s 0.000s R/W
F06.10 DO3 On delay time 0.000~9.999s 0.000s R/W
F06.11 DO3 Disconnection delay time 0.000~9.999s 0.000s R/W
F06.12 DO4 On delay time 0.000~9.999s 0.000s R/W
F06.13 DO4 Disconnection delay time 0.000~9.999s 0.000s R/W
F07 Fault and protection group
F07.00 Selection of over and under load alarm for driver or motor 0x000~0x131 0x000 R/W
LED bits:
0: motor overload and underload warning, relative to the rated current of the motor
1: Over and under load alarm of driver, relative to rated current of driver
LED ten bits:
0: drive continues to run after under load alarm
1: The driver will continue to run after under load alarm and stop running after overload fault
2: Drive continues to run after overload alarm and stops running after under load fault
3: Stop operation after the driver reports overload and under load fault
LED 100 bits:
0: always check
1: Detection in constant speed operation
F07.01 Overload alarm detection level F07.03~200% 140% R/W
F07.02 Overload alarm detection time 0.1~999.9s 1.0s R/W
F07.03 Detection level of under load alarm 0%~F07.01 50% R/W
F07.04 Detection time of under load alarm 0.1~999.9s 1.0s R/W
F07.05 Selection of motor overload protection 0: not protected 0 R/W*
1: Protection
F07.06 Motor overload protection factor 20.0%~120.0% 100.00% R/W
F07.07 MOS Self checking enable 0: not enabled 0 R/W*
1: enabling
F07.08 Automatic current limiting level 10.0%~420.0%(Relative to drive) 260.00% R/W*
F07.09 Fault auto reset time 0.0~999.9s:Auto reset time 5.0s R/W
F07.10 Number of fault automatic reset 0: no automatic reset 0 R/W
1 ~ 9999: reset times
F07.11 Locked rotor detection time 0.0~999.9s:Locked rotor detection 3.0s R/W*
F07.12 Locked rotor limiting current 1.0~200.0%(Relative to rated current of driver) 70.00% R/W*
F07.13 UP/DN Keyboard function setting 0: fine adjustment of given speed (only valid for given speed of keyboard) 0 R/W
1: Up forward jog, DN reverse jog
(only valid when keyboard is stopped or running interface)
F07.14 Undervoltage fault detection time 0~9.999s 1.0s R/W
F07.15 Phase loss detection time 0~999.9s 3.0s R/W
F07.16 User password 0: clear user password 0 R/W
1 ~ 9999: user password protection takes effect
F08 Communication group
F08.00 485 Slave address 1~247,0 Is the broadcast address 1 R/W*
F08.01 485 Communication baud rate setting 0:1200BPS 4 R/W*
4:19200BPS(Default value)
Note: high voltage drive does not support modifying baud rate
F08.02 485 Data bit verification settings 0:No check(N,8,1)for RTU 0 R/W*
1:Parity check(E,8,1)for RTU
2:Odd parity check(O,8,1)for RTU
3:No check(N,8,2)for RTU
Note: modification of calibration settings is not supported for high voltage drives
F08.03 485 Communication response delay 0~200ms 5 R/W*
F08.04 485 Communication timeout failure time 0.0(invalid),0.1~60.0s 0.0s R/W*
F08.05 Reserve   0 R/W*
F08.06 485 Communication processing action selection 0x0~0x1 0x00 R/W*
LED Bit:
0:Write response
1:No response for write operation
F08.10 CAN Slave address 1~127 1 R/W*
F08.11 CAN baud rate 0:10K 4 R/W*
F08.12 CAN Communication response delay 0~200ms 5ms R/W*
F08.13 CAN Communication protocol selection 0:CAN Modbus Agreement 0 R/W*
1:CANOpen Agreement(Reserve)
F09 监视参数组
F09.00 Set frequency 0.00Hz~F00.03 0.00Hz RO
F09.01 output frequency 0.00Hz~F00.03 0.00Hz RO
F09.02 Given frequency of slope 0.00Hz~F00.03 0.00Hz RO
F09.03 output voltage 0.0~1200.0V 0.0V RO
F09.04 Output current 0.00~100.00A 0.00A RO
F09.05 Set speed 0~65535RPM 0 RPM RO
F09.06 motor speed 0~65535RPM 0 RPM RO
F09.07 output power 0~2200W 0W RO
F09.08 DC Bus Voltage 0.0~2000.0V 0V RO
F09.09 Holzer value 0~7 0 RO
F09.10 Software version number 1.00~99.99 1  
F09.11 Current fault type 0: no fault 0 RO
1: Hardware accelerated overcurrent (E.OCH1)
2: Hardware deceleration overcurrent (E.OCH2)
3: Hardware constant speed overcurrent (E.OCH3)
4: Acceleration overcurrent (E.OC1)
5: Deceleration overcurrent (E.OC2)
6: Constant speed overcurrent (E.OC3)
7: Acceleration overvoltage (E.OV1)
8: Deceleration overvoltage (E.OV2)
9: Constant speed overvoltage (E.OV3)
10: Bus under voltage fault (E.uv)
11: Motor overload (E.OL1)
12: Driver overload (E.OL2)
13: Hall fault (E.Hall)
14: Locked rotor fault (E.Loc)
15: Rectifier module overheating (E.OH1)
16: Inverter module overheat fault (E.OH2)
17: External fault (E.EF)
18: 485 communication failure (E.485)
19: Current detection fault (E.Cur)
20: Inverter unit U-phase protection (E.Out1)
21: inverter V-phase protection (E.Out2)
22: inverter unit w-phase protection (E.Out3)
23: electronic overload (E.OL3)
24: under load fault (E.LL)
25: MOS short circuit fault (E.Sht)
26: panel communication error (E.boad)
F09.12 Type of the 1 failure 27: EEPROM storage failure (E.EEP) 0 RO
F09.13 Type of the 2 failure 28: MOS on fault (E.Cnd) 0 RO
F09.14 Type of the 3 failure 29: Hardware overcurrent feedback failure (E.OCHF) 0 RO
F09.15 Type of the 4 failure 30: output phase failure (E.Pout) 0 RO
F09.16 Inverter temperature -20.0~120.0℃ 0.0℃ RO
F09.17 Switch input terminal status 0000~1FF 0 RO
BIT0:DI1 terminal
BIT1:DI2 terminal
BIT2:DI3 terminal
BIT3:DI4 terminal
BIT4:DI5 terminal
F09.18 Switch output terminal status 0000~000F  Bit0:DO1 0 RO
F09.19 AI1 input voltage 0.00~10.00V 0.00V RO
F09.20 AI2 input voltage 0.00~10.00V 0.00V RO
F09.21 AI3 input voltage 0.00~10.00V 0.00V RO
F09.22 peak current 0.00~100.00A 0.00A RO
F09.23 Dial switch 0x00~0xFF 0x00 RO
F09.24 Rated current setting 0.00~100.00A 0.00A RO
F09.25 AI4 input voltage 0.00~10.00V 0.00V RO
F09.26 HDI Input frequency 0.00~20.00KHZ 0.00KHZ RO
F09.27 Simple PLC cycle frequency 0~9999 0 RO

Fault description and handling:

Fault number

Trouble code

Fault name


processing method



Hardware acceleration overcurrent

1. Acceleration and deceleration are too fast

2. Low voltage

3. Drive power is too small

4. Sudden load

5. Short circuit to ground

6. Strong interference source outside

1、. increase acceleration and deceleration time

2. Check input power supply voltage

3. Select the driver with higher power

4. Check the load for short circuit or locked rotor

5. Check / replace cable or motor

6. Check for strong interference



Hardware deceleration overcurrent



Hardware constant speed overcurrent



Software acceleration overcurrent



Software deceleration overcurrent



Software constant speed overcurrent



Accelerating overvoltage

1. High input voltage

2. Too strong electronic brake force

1. Check the supply voltage

2. Modify electronic brake parameters



Deceleration overvoltage



Constant speed overvoltage



Bus under voltage fault

  1.  Low supply voltage
  2.  Acceleration too fast, external power protection
  3.  Instantaneous power failure
  4. Drive hardware exception

1 check the input power of the power grid
2 increase acceleration time
3 reset fault
4 seek technical support



motor overload

1.Supply voltage too low
2.The rated current of the motor is not set properly
3.Motor locked or load sudden change is too large

1. Check the supply voltage
2. Set motor rated current
3. Reduce load to check motor and mechanical condition



Driver overload

1. Acceleration time is too fast
2. Supply voltage too low
3. Too much load

1. Increase acceleration time
2. Check the supply voltage
3. A drive that changes to a larger gear



Holzer fault

1. Hall disconnection
2..There is strong interference source outside

1. Check hall wiring

2. Check for strong interference



Locked rotor fault

1. Too much load
2. Motor stuck
3. Motor inter phase short circuit

1. Upgrade the first drive
2. Check the mechanical connection of the motor
3. Check wiring



over heating 1

1. High ambient temperature
2. Thermistor damaged
3. The inverter module is damaged

1.Reduce ambient temperature
2. replace the whole machine



over heating 2



External input failure

External fault input terminal

Check terminal input source



485 Communication failure

1. Baud rate and data verification settings are incorrect

2. Communication line failure

3. Wrong mailing address

4. Strong interference in communication

1. Detect baud rate parameter settings

2. Check the communication line

3. Check address settings

4. Replace shield wire to improve immunity



Current detection fault

Circuit abnormity

Replace drive



Inverter U-phase fault

1. Acceleration too fast

2. Inverter circuit damaged

3. Misoperation caused by interference

1. Increase acceleration time

2. Replace power devices

3. Check whether there is strong interference source



Inverter V-phase fault



Inverter W-phase fault



Electronic overload fault

Overload warning function is set

Detect load and overload warning point



Electronic under load fault

Under load warning function is set

Detect under load value and under load warning point



Short circuit fault

  1. MOS or inverter unit short circuit

2. Short circuit of phase line to ground

1. Replace drive
2. Check wiring



Keyboard communication failure

1. Bad contact or disconnection of keyboard cable
2. The keyboard cable is too long and interfered

1、 Check or replace wiring
2. Check the environment to eliminate interference sources



Parameter storage failure

  1. EEPROM damage
  2. Reach the upper limit of single power on erase

1. Reset clear fault
2. Power on again
3. Seek technical support



Conduction failure

1. Motor not connected during self test
2. MOS or inverter unit is damaged

1. Replace drive
2. Check wiring



Overcurrent feedback fault

Drive hardware is damaged

Replace drive



Output phase missing

1. U / V / W output phase failure
2. Drive hardware exception

1. Check the driver to motor wiring
2. Seek technical support