66
7.3 Troubleshooting
5
Err14 (IGBT
overheat)
fault is
reported
frequently.
1: The setting of carrier frequency is too
high.
2: The cooling fan is damaged, or the air
lter is blocked.
3: Components inside the AC drive are
damaged (thermal coupler or others).
1: Reduce the carrier
frequency (P0-15).
2: Replace the fan and
clean the air lter.
3: Contact technical
support.
6
The motor
does not
rotate after
the AC drive
runs.
1: Check the motor and the motor
cables.
2: The AC drive parameters are set
improperly (motor parameters).
3: The cable between the drive board
and the control board is in poor contact.
4: The drive board is faulty.
1: Ensure the cable
between the AC drive and
the motor is normal.
2: Replace the motor or
clear mechanical faults.
3: Check and re-set motor
parameters.
7
The AC drive
reports
overcurrent
and
overvoltage
frequently.
1: The motor parameters are set
improperly.
2: The acceleration/deceleration time is
improper.
3: The load uctuates.
1: Re-set motor
parameters or re-perform
the motor autotuning.
2: Set proper acceleration/
deceleration time.
3: Contact technical
support.
8
No display
upon power-
on.
Related component on the control board
is damaged.
Replace the control board.
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