64
Fault code Fault categories
Possible reasons for fault
Actions
the braking time
Too short acceleration time
Prolong accerlation time
Low AC supply voltage
Check the AC supply voltage
Improper V/F curve
Adjust V/F curve or torque
boost value
E014
Motor
over-load
Improper motor’s overload protection threshold
Modify the motor’s overload
protection threshold.
Motor is locked or load suddenly become too big
Check the load
Common motor has operated with heavy load
at low speed for a long time.
Use a special motor if the
motor is required to operate
for a long time.
Low AC supply voltage
Check the AC supply voltage
Improper V/F curve
Set V/F curve and torque
boost value correctly
E015
external
equipment fails
Terminal used for stopping the drive in
emergent status is closed
Disconnect the terminal if the
external fault is cleared
E016
EEPROM R/W
fault
R/W fault of control parameters
Press STOP/RST to reset,
seek service
E017
reserved
reserved
reserved
E018
Contactor not
closed
Low AC supply voltage
Check the AC supply voltage
Contactor damaged
Replace the contactor in main
circuit and seek service
Soft start resistor is damaged
Replace the soft start resistor
and seek service
Control circuit is damaged
Seek service
Input phase loss
Check the wiring of R, S, T.
E019
Current
detection
circuit
fails
Wires or connectors of control board are loose
Check and re-wire
Auxiliary power supply is damaged
Seek service
Hall sensor is damaged
Seek service
Amplifying circuit is abnormal
Seek service
E020
System
interference
Terrible interference
Press
STOP/RST
key to reset
or add a power filter in front of
power supply input
DSP in control board read/write by mistake
Press
STOP/RST
key or seek
service.
E023
Parameter copy
error
Panel’s parameters are not complete or the
version of the parameters are not the same
as that of the main control board
Update the panel’s
parameters and version again.
First set b4.04 to 1 to upload
the parameters and then set
b4.04 to 2 or 3 to download
