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.