Troubleshooting
69
abnormal and the current
waveform is abnormal.
Auxiliary power supply is
damaged, drive voltage is under
voltage
Look for the service from
manufactur
The control board is abnormal
Look for the service from
manufactur
E-15
Short circuit to ground
when operation
Motor short circuit to ground
The replacement of cable or motor
Hall component is damaged or
the hall wiring is poor or the
current detection circuit is
abnormal
Look for service from manufacturer
or agent
E-16
Short circuit to ground
when power on
Motor short circuit to ground
Change the cable or motor
The power supplier of the
inverter and the motor wiring are
reversed
Change the cable or motor wiring
Hall component is damaged or
the hall wiring is poor
Look for service from manufacturer
or agent
E-17
(
A-17
)
Inverter overheat
Continuous alarm on A-17 for
more than 30 minutes
Clean up the air duct or improve
ventilation
Duct blockage
Clean up the air duct or improve
ventilation
The ambient temperature is too
high
Improve ventilation and reduce
carrier frequency
Fan damage
Replace the fan
E-18
(
A-18
)
External device failure
External fault emergency stop,
terminal closed
Disconnect external fault terminals
after handling external faults
E-19
Current detecting
circuit failure
The connection or the plug-in of
the control board is loose.
Check and connect the wire again
Assistant power supply damaged
Look for service from manufacturer
or agent
Hall component damaged
Look for service from manufacturer
or agent
Amplifying circuit abnormal
Look for service from manufacturer
or agent
E-20
External interference
failure
The interruption protection of
CPU is triggered, but none of the
actual overcurrent, overvoltage
and short circuit signals have
been detected
Press the “STOP/RESET” button to
reset or add a power filter to the
power input side.
E-21
Internal interference
failure
Internal disturbance serious
Power off and restart, if the failure
persists, seek the manufacturer or
dealer service
E-22
(A-22)
PID given loss
PID given loss threshold setting
is unreasonable
To reset the relevant parameters
External given disconnection
Check external given wiring
The main control board is
abnormal.
Look for service from manufacturer
or agent
E-23
(A-23)
PID feedback loss
PID feedback loss threshold
setting is unreasonable
To reset the relevant parameters
ENC