IGBT temperature

What does F31 mean?

The IGBT Inverter Bridge over-temperature protection has activated due to an excessively high short-term overload current. This indicates the power semiconductors are being stressed beyond their safe operating limits. Repeated trips can degrade the IGBTs.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Perform an identification run (auto-tuning) to ensure optimal motor magnetization and control parameters are set.