Siemens VFD

F30023 – Phase unbalance

Input phase unbalance detected

Details

Input phase unbalance detected. Check drive diagnostics and motor condition.

Error typefault
MeaningPhase unbalance
Typical causesDrive fault motor fault configuration error
SolutionsCheck drive diagnostic screen verify motor condition review parameters
Severityhigh

Catalog references

Vendor Information

SiemensF30023

Utilities

Troubleshooting Steps

Troubleshooting steps

Check drive diagnostic screen verify motor condition review parameters

Related

Related Siemens VFD Codes

F30001 – Overcurrent fault

Overcurrent detected during motor operation

→

F30002 – Overvoltage fault

DC bus voltage too high

→

FAQ

Common questions

How do I clear the fault?

Fix the underlying cause then reset using drive reset or power cycle