01

Over-current in output stage

SEW Eurodrive · [PDF] Operating Instructions

What does 01 mean?

An excessive current flow has been detected in the inverter's output stage, indicating a potential short circuit. This can occur between motor phases, between a phase and ground, or within the motor winding itself. Such an event poses a significant risk of damage to the inverter's power components and potentially the motor.

Common Causes

  • Short circuit on the inverter output.
  • Short circuit between the inverter output and the motor cable.
  • Short circuit within the motor winding.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the connection between the inverter output and the motor for short circuits using a multimeter (phase-to-phase and phase-to-ground resistance).

  2. 2

    Perform a winding resistance test on the motor to check for internal short circuits.

  3. 3

    Reset the fault by switching off the DC 24 V supply voltage to the inverter for at least 10 seconds.

Browse all codes in this manual (11)
Verified technical data. Last updated: March 2026

Related Faults

Source: [PDF] Operating Instructions