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.

Complete Troubleshooting Guide

1. 1

   Immediately power down the drive completely.

2. 2

   DO NOT RESTART THE DRIVE or RECONNECT POWER.

3. 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.