Ground fault

What does F-03 mean?

A ground fault has been detected in the motor, its supply lead, or within the MOVITRAC® B inverter itself, causing an immediate switch-off with inhibit. This is a critical safety and equipment protection issue. Unresolved ground faults can lead to severe damage or safety hazards.

Complete Troubleshooting Guide

1. 1

   Perform insulation resistance tests on the motor and its supply cables to identify and eliminate the ground fault.

2. 2

   Inspect the motor and cabling for any physical damage or moisture ingress.

3. 3

   If external components are verified, the inverter may have an internal ground fault, requiring replacement.