Frequently asked questions
What causes an overcurrent fault or OCF code for ATV61 and ATV71 drive?
28 September 2021Issue:
Getting a overcurrent fault (OCF) on ATV61 or ATV71 drive.
ATV61, ATV71, Altivar 61, Altivar 71
OCF fault trips when the drive hardware current limitation is reached.
Check that the settings for motor frequency, voltage, current and speed match motor nameplate under 1.4 Motor Control menu.
Check for high inertia or load that is too large.
Check for mechanical blockage.
Monitor the motor current while running under Menu 1.2 Monitoring to see if the motor current is higher than normal.