F4.2

Brake chopper defective

SEW Eurodrive · MOVIDRIVE system

What does F4.2 mean?

The output stage of the brake chopper component is defective. This critical failure prevents the drive from effectively dissipating regenerative energy during deceleration, potentially leading to DC bus overvoltage faults and irreversible damage to the drive.

Complete Troubleshooting Guide

  1. 1

    Replace the entire defective brake chopper unit with a new, compatible component.