SCF

Short Circuit

Schneider Electric · Altistart 22 Soft Starter

What does SCF mean?

A short circuit has been detected on the soft starter's output, typically between motor phases or from a phase to ground. This is a severe fault that can cause immediate and significant damage to the soft starter and motor.

Complete Troubleshooting Guide

  1. 1

    Switch off the soft starter and disconnect power immediately to prevent further damage.

  2. 2

    Thoroughly check all motor connections for any short circuits, loose wiring, or damage.

  3. 3

    Perform an insulation resistance test on the motor windings and cables to ground and between phases.

  4. 4

    If connections and insulation are confirmed to be satisfactory, contact Schneider Electric services as the fault may be internal to the soft starter.