Ground Fault (Adv. Code 0)

What does 11 mean?

The drive has detected a current imbalance between its output phases, and this imbalance is determined to be current flowing to ground. This is a critical fault indicating a direct path to ground from the motor or motor cabling. It poses an electrical hazard, potential equipment damage, and could trip upstream protective devices.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the motor cable for any signs of damage to insulation, chafing, or moisture ingress that could cause a ground fault.

2. 4

   Inspect the motor itself for any signs of internal winding damage or moisture ingress that could lead to a ground fault. Consider rotating the motor shaft during testing.