Internal Temperature Too High

What does PF Int Temp mean?

The internal temperature of the variable speed drive has exceeded its safe operating limit. This indicates insufficient cooling or excessive load, which prevents the drive from safely dissipating heat. Prolonged high temperatures will significantly reduce the lifespan of electronic components and can lead to immediate shutdown or permanent damage to the VSD's power stage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure adequate clearance around the drive for proper airflow and ventilation.