3

Earth fault

Vacon · 100 FLOW Application Guide

What does 3 mean?

Current measurement has detected that the sum of the motor phase currents is not zero. This indicates an insulation failure in the motor cables or within the motor windings themselves, causing current to flow to ground.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Inspect motor cables for any visible damage to insulation.

Source: Vacon 100 FLOW Application Guide
Open Manual (Page 106)