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Operating Panel Display Fault Name
Communication fault
Cause Possible Solution
Host computer is in abnormal state. Check the cable of host computer.
Communication cable is abnormal. Check the communication cables.
The serial port communication
protocol (F0-28) of extension
communication card is set
improperly.
Set F0-28 of extension communication card correctly.
Communication parameters in group
Fd are set improperly.
Set communication parameters in group Fd properly.
After all the preceding checkings are done but the fault still exists, restore the default settings.
Operating Panel Display Fault Name
Contactor fault
Cause Possible Solution
Drive board and power supply are
abnormal.
Replace drive board or power supply board.
Contactor is abnormal. Replace contactor.
The lightning protection board is
abnormal.
Replace the lightning protection board.
Operating Panel Display Fault Name
Current detection fault
Cause Possible Solution
The hall is abnormal. Replace the hall .
The drive board is abnormal. Replace the drive board.
Operating Panel Display Fault Name
Motor auto-tuning fault
Cause Possible Solution
Motor parameters are not set
according to nameplate.
Set motor parameters correctly according to nameplate.
Motor auto-tuning times out. Check the cable connecting AC drive and motor.
The encoder is abnormal. Check whether F1-27 (encoder pulses per revolution) is set
correctly.
Check whether signal lines of encoder are connected correctly
and securely.
Operating Panel Display Fault Name
Encoder fault
Cause Possible Solution
Encoder is not matched. Set the type of encoder correctly.
Encoder wiring is incorrect. Check the PG card power supply and phase sequence.
Encoder is damaged. Replace encoder.
PG card is abnormal. Replace PG card.
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