47
Fault Contact
output
Error causes Action to be taken
Operation Parameter setting error
Operation
One of the inverter input phases are lost
3 phases power source are unbalance.
The main circuit smooth capacitor are deteriated.
Improper input phase loss detection level (Cn-61) setting
Check the inverter input power supply wiring.
Check the capacitors.
Check the setting of Cn-61.
Operation
One of the inverter output phases are lost
DCCT fault.
Check the wiring between inverter and motor.
Replace the DCCT.
Operation
Motor load current is too large.
The effective cooling of motor is not sufficient.
Check the motor load current.
Check the motor effective cooling.
Operation
RS-485 communication option card fault
Excess vibration or shock
External noise
Turn off power, then turn on again. If error is persistent,
replace the option card.
Operation
The RS-485 communication protocols setting inverter (Sn-
24) and option card are inconsistent.
Check the setting in Sn-24 and option card.
Operation
PA-P card fault
Turn off power, then turn on again. If error is persistent,
replace the option card.
Operation
Operation
Operation
Operation
Operation
Overload, low speed operation or extended acceleration time,
improper V/f characteristic setting
Investigate the cause of overload and review the operation
pattern, V/f characteristic, and motor/inverter capacities. (If
inverter is repeatedly reset after an overload occurs, the
inverter may fault. Investigate and correct the cause of
overload.) .Cn-35=0, turn off.
Operation
Feedback signal or cable fault.
Check the PID cable is connected or not
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