IGBT Saturation / Short Circuit

What does 7 mean?

This fault indicates a serious hardware failure such as a defective IGBT, a de-saturation short circuit within an IGBT, or a short circuit/overload in the brake resistor. This fault suggests significant damage to the power stage and continuing operation can cause further severe damage or injury.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Contact the factory or authorized service personnel for diagnosis and repair, as this fault cannot be reset from the control panel and requires expert intervention.