Drive: Short-circuit/ground fault detected

What does F07807 mean?

A phase-to-phase short-circuit or a ground fault has been detected at the motor-side output terminals of the converter. The fault value specifies the exact short-circuit type or ground fault with current component. This is a critical electrical fault that can cause immediate and severe damage to the power module or motor, necessitating rapid isolation and repair to prevent costly failures and prolonged downtime.

Complete Troubleshooting Guide

1. 1

   Check the motor-side converter connection for any phase-to-phase short-circuits.

2. 2

   Confirm that the line and motor cables have not been accidentally interchanged.

3. 3

   Perform a comprehensive ground fault check on the motor and associated cabling.

4. 4

   If connecting to a rotating motor, either activate the 'Flying restart' function (p1200) or increase the motor de-energization time (p0347).