DC link overvoltage

What does F-07 mean?

The DC link voltage within the inverter has risen above safe operating limits, triggering an immediate shutdown with inhibit. This is typically caused by excessive regenerative energy from the motor during deceleration, an issue with the braking resistor, or a ground fault. Persistent overvoltage can damage the inverter's power stage.

Complete Troubleshooting Guide

1. 1

   Increase the deceleration ramp times in the inverter settings to manage regenerative energy more effectively.

2. 2

   Verify the functionality and correct sizing of the braking resistor and its connections.

3. 3

   Investigate and rectify any ground faults in the system that could contribute to voltage spikes.