Troubleshooting steps
Check input power supply verify all phases check fuses verify input connections
Schneider Electric VFD
UVF – Undervoltage fault
DC bus undervoltage detected
Details
DC link voltage dropped below minimum operating level.
Error typefault
MeaningUndervoltage
Typical causesInput power loss low input voltage phase loss
SolutionsCheck input power supply verify all phases check fuses verify input connections
Severityhigh
Catalog references
Vendor Information
Schneider ElectricUVF
Utilities
Troubleshooting Steps
Related
Related Schneider Electric VFD Codes
FAQ
Common questions
What causes phase loss?
Blown fuse loose connection single phase power supply. Check all three phases.
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