1787

Category: Alarm

Cause

Condition: main circuit current exceeds 1.5 times the servo drive instantaneous maximum peak current.

1. Drive output short circuit.
2. Motor wiring abnormal.
3. IGBT abnormal.
4. Control parameter settings abnormal.
5. Control command settings abnormal.

Corrective action

1. Check the motor-to-drive wiring or the conductors themselves for short circuits and prevent exposed metal conductors. Check the motor-to-drive wiring sequence against the manual's wiring instructions.
2. If heatsink temperature is abnormal, return the unit to the dealer or original manufacturer for inspection and repair. Check whether settings are far above factory defaults; restore the factory defaults first, then adjust them gradually.
3. Check whether control input commands change too abruptly. If so, adjust the input command rate of change or enable filtering. Reset the alarm.