4 Troubleshooting
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No. Fault Symptom
Possible Cause
Possible Solution
6
The motor does
not rotate after
the AC drive runs.
The motor and motor cable are in
poor contact.
Check that the wiring between the
AC drive and motor is normal.
Related AC drive parameters (motor
parameters) are set improperly.
Restore the factory parameters and
reset related parameters properly.
Check that the rated motor parame-
ters are set properly, including rated
motor frequency and rated motor
speed.
Check that F0-01 (Motor 1 control
mode) and F0-02 (Command source
selection) are set properly.
Modify F3-01 (Torque boost) in V/F
control mode under heavy-load start.
The cable connecting the drive
board and control board is in poor
contact.
Re-connect wirings and ensure se-
cure connection.
The drive board is faulty.
Contact the agent or Inovance for
technical support.
7 DI terminals are
disabled.
Related parameters are incorrectly
set.
Check and set the parameters in
group F4 again.
External signals are incorrect.
Re-connect external signal cables.
The jumper across OP and +24 V
becomes loose.
Re-confirm the jumper across OP
and +24 V.
The control board is faulty.
Contact the agent or Inovance for
technical support.
8
The motor speed
does not rise in
FVC mode.
The drive board is faulty.
Contact the agent or Inovance for
technical support.
9
The AC drive de-
tects overcurrent
and overvoltage
frequently.
Motor parameters are set improper-
ly.
Reset motor parameters or perform
motor auto-tuning.
The acceleration/deceleration time
is improper.
Set proper acceleration/deceleration
time.
The load fluctuates.
Contact the agent or Inovance.
10
"
Err17
"
is report-
ed while pow-
er-on (or during
running).
The soft startup contactor is not
closed.
Check whether the contactor cable is
loose.
Check whether the contactor is
faulty.
Check whether 24 V power supply of
the contactor is faulty.
Contact the agent or Inovance for
technical support.
