oL3

Overtorque Detection 1

Yaskawa · V1000 AC Drive

What does oL3 mean?

This fault indicates that the drive's output current exceeded the level set in L6-02 for longer than the time specified in L6-03. This suggests a mechanical issue like a machine lock-up or that the load parameters are incorrectly configured. Leaving this unresolved can lead to continued machine stress, overheating, or damage to connected equipment.

Complete Troubleshooting Guide

  1. 1

    Inspect the machine thoroughly for any mechanical obstructions, binding, or lock-ups and remove the identified cause.

  2. 2

    Review and adjust the L6-02 [Torque Detection Level 1] and L6-03 [Torque Detection Time 1] parameters to accurately match the operational load and prevent nuisance trips.

  3. 3

    Perform a Fault Reset to clear the fault from the drive once the underlying issue is resolved.