Power unit: DC link voltage, overvoltage

What does 230502 mean?

This fault indicates that the power unit has detected an overvoltage condition in the DC link, leading to a pulse inhibit. Common causes include a device supply voltage that is too high or an incorrectly dimensioned line reactor, as indicated by the fault value in r0949. Persistent DC link overvoltage can damage power electronic components, reduce drive lifespan, and lead to complete drive failure if not corrected.

Complete Troubleshooting Guide

1. 1

   Check the device supply voltage (p0210) to ensure it is within the specified operating range.

2. 2

   Verify the dimensioning and rating of the line reactor, ensuring it is appropriate for the system load and supply characteristics.