IGBT Overtemperature

What does 41 mean?

The calculated temperature of the drive's Insulated Gate Bipolar Transistors (IGBTs) has exceeded its safe operating limit. This critical condition can be caused by excessive motor load, high ambient temperatures, insufficient cooling air flow, a dusty heatsink, high switching frequency, or internal hardware malfunction. Overheated IGBTs are prone to rapid degradation and catastrophic failure.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify the ambient temperature is within the drive's specifications.

2. 4

   If the issue persists, consider performing an identification run to optimize motor parameters, and consult a distributor for potential hardware malfunction diagnosis.