F1.2

Overcurrent in output stage

SEW Eurodrive · MOVIDRIVE system

What does F1.2 mean?

The motor current flowing through the output stage is excessively high, potentially due to an undersized motor, issues with the current supply or transformer, incorrect ramp times, a defective phase module, or an unstable 24 V supply. This condition can lead to severe damage to both the drive and the motor if not corrected.

Complete Troubleshooting Guide

  1. 1

    Verify the motor size is appropriate for the application; if oversized, connect a smaller motor.

  2. 2

    Check the stability and integrity of the drive's current supply and inspect the current transformer.

  3. 3

    If the ramp limit is deactivated and the ramp time is too short, increase the deceleration ramp time.

  4. 4

    Inspect the phase module for defects and check the 24 V supply voltage for stability.

  5. 5

    Examine the signal lines of the phase modules for interruptions or short circuits.