Output Ground Fault

What does GF mean?

The Drive has detected an output grounding current exceeding 50% of its rated output current (L8-09 = 1 enabled), indicating a current leakage to ground. This is typically caused by a short in the motor leads, motor windings, or a defective internal current sensor. A persistent ground fault poses a safety risk and can lead to damage to the motor or Drive components.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the motor output cables for any damage or insulation breakdown that could cause current leakage to ground.

2. 4

   If the fault persists with the motor disconnected, consult with a qualified technician to verify the integrity of the Drive's internal DCCT (current sensors).