Overvoltage

What does 2 mean?

The DC-link voltage has exceeded its defined limits. This typically occurs due to an excessively short deceleration time, where regenerative energy from the motor causes the DC bus to rise, or high overvoltage spikes in the supply voltage. Persistent overvoltage can damage the frequency converter's internal components.

Complete Troubleshooting Guide

1. 1

   Increase the deceleration time setting in the drive parameters.

2. 2

   Use a brake chopper or brake resistor (if available as options) to dissipate regenerative energy.

3. 3

   Activate the overvoltage controller function.

4. 4

   Check the input supply voltage for spikes or instability.