Earth fault

What does F3 mean?

The earth fault protection ensures that the sum of the output phase currents is not zero, indicating a current leakage to ground. This protection works in conjunction with overcurrent protection for high current earth faults. An unaddressed earth fault poses a significant safety hazard and can cause severe damage to the drive or motor.

Complete Troubleshooting Guide

1. 1

   Carefully inspect the motor and output cables for insulation failure or damage that could lead to a short circuit to earth.