41

IGBT Overtemperature

Vacon · 20 Compact AC Drive

What does 41 mean?

An overtemperature alarm is issued when the Insulated Gate Bipolar Transistor (IGBT) switch temperature within the drive exceeds 110 °C. This indicates excessive heat generation in the power stage, often due to heavy loading, an improperly sized motor, or inadequate cooling.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Perform an identification run (if applicable) to optimize motor control parameters and reduce unnecessary heat generation.

Source: Vacon 20 Compact AC Drive
Open Manual (Page 56)