K&R GT600-4T132G User Manual page 300

10. Troubleshooting
Operating Panel Display
Cause
Input phase loss occurs.
Drive board, lightning protection
board, control board, or rectifier
bridge is abnormal.
Operating Panel Display
Cause
Motor winding is damaged.
The cable connecting the AC drive
and the motor is abnormal.
The AC drive's three-phase outputs
are unbalanced when the motor is
running.
The drive board or the IGBT is
abnormal.
Operating Panel Display
Cause
The ambient temperature is too high.
The ventilation is clogged.
The fan is damaged.
Thermally sensitive resistor of IGBT
is damaged.
The AC Drive IGBT is damaged.
Operating Panel Display
Cause
External fault signal is input via DI.
External fault signal is input via
virtual I/O.
11
- 298 -
Fault Name
Input phase loss
Possible Solution
Eliminate faults in external circuitry.
Contact the agent or Inovance.
Fault Name
Output phase loss
Possible Solution
Check resistance between motor wires.
Replace motor is winding is damaged.
Check for wiring errors and ensure the output cable is
connected properly.
Correct wiring.
Check whether the motor three-phase winding is normal.
Contact the agent or Inovance.
Fault Name
IGBT overheat
Possible Solution
Lower the ambient temperature.
Clean the ventilation.
Replace the cooling fan.
Replace the damaged thermally sensitive resistor.
Replace the AC Drive IGBT.
Fault Name
External fault
Possible Solution
Confirm that the mechanical condition allows restart (F8-18)
and reset the operation.
Confirm that the virtual I/O parameters in group A1 are set
correctly and reset the operation.