Applicable Systems
FC-30
FC-51
FC-101
FC-202
FC-302
Symptoms
DC link voltage below undervoltage limit.
Possible Causes
- Input voltage too low
- Input phase loss
- Transient power interruption
Troubleshooting Steps
- Step 1: Measure input voltage
Voltage within rated range - Step 2: Check input fuses and connections
All fuses intact, connections tight - Step 3: Verify DC link voltage
Voltage above threshold
How to Reset
Auto-reset when voltage returns or reset via panel.
Comments (0)
Share your experience to help others facing the same problem.
Leave a Comment
Source: Danfoss VLT FC-302 Operating Guide, Danfoss A/S
Category: PLC & VFD
No comments yet. Be the first to share your experience!