31

IGBT temperature (hardware)

Vacon · NXS NXP AC Drive

What does 31 mean?

The IGBT Inverter Bridge's hardware overtemperature protection has activated, detecting an excessively high short-term overload current. This indicates that the power semiconductors are experiencing dangerous thermal stress, risking permanent damage or reduced lifespan if the overload persists.

Complete Troubleshooting Guide

  1. 1

    Check the motor's mechanical loading to ensure it is within the drive's continuous operating limits.

  2. 2

    Verify that the motor size and rating are appropriate for the frequency converter's specifications.

  3. 3

    Perform a motor identification run to ensure all motor parameters are accurately tuned for optimal control and thermal management.