06

Phase failure

SEW Eurodrive · MOVIFIT-FC Inverter

What does 06 mean?

A phase failure has been detected in the supply system. This fault indicates a loss of one or more phases in the input power supply, and it is detectable only when the drive is operating under load. Continued operation with a phase failure can damage the motor or inverter.

Common Causes

  • One or more phases missing in the incoming power supply.
  • Faulty connection of power cables to the drive.
  • Internal power supply module failure.
  • Motor connection phase issue.
  • Power fuse blown in one of the phases.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the supply system cables for missing phases.

  2. 2

    Reset the fault by switching off the DC 24 V supply voltage.

Browse all codes in this manual (26)
Verified technical data. Last updated: March 2026

Related Faults

Source: SEW Eurodrive MOVIFIT-FC Inverter