Earth Fault

What does OC2 mean?

An earth fault has been detected, indicating a motor phase has made contact with earth or the motor cable insulation is compromised. Similar to OC1, high capacitive charging current from motor cables can also trigger this. Operating with an earth fault is a safety hazard and can cause severe damage to the motor and drive.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If motor cables are excessively long or high-capacitance, consider using shorter or lower-capacitance cables.