Fault Countermeasure Remark
E0018
Inverter output
ooad
• Check load and mechanical
transmission
• Set proper F20.03 - F20.05
HD09/
HD09-S
none
E0019 Motor overload
• Adjust proper F09.00 - F09.06 (V/f
curve)
• Check the input power
• Long-term low-speed and large-load
operation, replace the inverter motor
• Check load and mechanical
transmission
E0020 Motor overheat
• Reduce load; Repair and replace
motors
• Increase F03.01 - F03.08 (Acc. and
Dec. time)
• Correctly set F08.00 - F08.04/
F13.01 - F13.05 (motor parameters)
HD09/
HD09-S/
HD20 none
E0021
Control board
EEPROM read and
write fault
• Contact the supplier for repairing
E0022
Keypad EEPROM
read and write
fault
• Replace the keypad
• Contact the supplier for repairing
E0023
Parameter setting
fault
• Select a motor that matches the
inverter power
• Correctly set F08.00 - F08.04/
F13.01 - F13.05 (motor parameters)
E0024
External device
fault
• Check external device
E0025 PID reference loss
• Check wiring
• Seek technical support
HD07-S
HD09/
HD09-S
none
E0026 PID feedback loss
E0027
PID feedback
overrun
E0028
SCI communication
timeout
• Check wiring
• Correctly set F17.00/F17.01
(communication format/baud rate)
• Send data according to Modbus
protocol content
E0029
SCI communication
error
E0030 Encoder reverse • Check the encoder and motor wiring
Only HD50
have
E0031
Encoder
disconnected
• Check the encoder
• Check the encoder wiring
E0032 Motor over speed
• Check motor and load
E0033
Motor speed out of
tolerance
E0034
Tension control
system fracture of
material
• Check wiring
• Check the encoder
Note: E0022 does not aect the normal running of the inverter.
Troubleshooting