BC IGBT excess temperature

What does 7192 mean?

The IGBT within the brake chopper has overheated beyond its internal fault limit, often due to high ambient temperatures, cooling fan failure, or excessive braking cycles. This fault protects the IGBT from permanent damage but requires investigation into the cooling system or operational demands.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the ambient temperature around the drive and verify the overall dimensioning and cooling of the electrical cabinet.

2. 4

   Review the resistor overload protection function settings in parameter group 43 (Brake Chopper) and ensure the braking cycle meets allowed limits.

3. 5

   Verify that the drive supply AC voltage is within specified limits and not excessively high, as this can increase losses.