KPS Ballast Switch Overload During Charging

What does Ballast switch energized for too long PMx during charging mean?

The brake resistor experienced an I²t overload during the charging phase. This indicates that the ballast switch was energized for an excessive duration, possibly due to a defective ballast resistor or incorrect connection.

1. 1

   Check the ballast resistor for defects, including open circuits or incorrect resistance values.

2. 2

   Verify the correct wiring and connection of the ballast resistor to the KPS module.