Inovance MD500T75G - Page 295

MD500 User Manual 12. Troubleshooting
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Operating Panel Display Fault Name
Power output phase loss
Cause Possible Solution
It is the motor fault. Check whether short circuit occurs on the motor.
The cable connecting the AC drive
and the motor is abnormal.
Eliminate external faults.
The AC drive's three-phase outputs are
unbalanced when the motor is running.
Check whether the motor three-phase winding is normal and eliminate the fault.
The drive board or the IGBT
module is abnormal.
Contact the agent or Inovance.
Operating Panel Display Fault Name
Module overheat
Cause Possible Solution
The ambient temperature is too high. Lower the ambient temperature.
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The fan is damaged. Replace the damaged fan.
The thermally sensitive resistor
of the module is damaged.
Replace the damaged thermally sensitive resistor.
The inverter module is damaged. Replace the inverter module.
Operating Panel Display Fault Name
External equipment fault
Cause Possible Solution
External fault signal is input via DI. (OLPLQDWHH[WHUQDOIDXOWVFRQÀUPWKDWWKHPHFKDQLFDOFRQGLWLRQ
allows restart (F8-18) and reset the operation.
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are set correctly and reset the operation.
Operating Panel Display Fault Name
Communication fault
Cause Possible Solution
The host computer is in abnormal state. Check the cabling of host computer.
The communication cable is abnormal. Check the communication cables.
The serial port communication
protocol (F0-28) of the extension
communication card is set improperly.
Set F0-28 of the extension communication card correctly.
The communication parameters in
group Fd are set improperly.
Set the communication parameters in group Fd properly.
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