Power Unit Fault

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One or more of the output transistors were operating in the active region instead of desaturation. This can be caused by excessive transistor current or insufficient base drive voltage, indicating a failure within the drive's output power stage.

• Malfunction within the power conversion or regulation stage.
• Overload condition exceeding the power unit's capacity.
• Internal component failure in the power stage.
• Inadequate cooling of the power unit.

Klikk på steg for å spore fremgangen.

1. 1

   Check for damaged output transistors (e.g., using a multimeter for short circuits).

2. 2

   Replace the drive unit.