Applicable Systems
Vacon 100
Symptoms
Input line monitoring: input phase loss detected.
Possible Causes
- Missing input phase
- Input fuse blown
- Loose input connection
Troubleshooting Steps
- Step 1: Measure all three input phases
All phases present - Step 2: Check input fuses
All fuses intact - Step 3: Inspect input connections
All connections tight
How to Reset
Reset via control panel after restoring all phases.
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Source: Vacon NXP Quick Guide, Danfoss/Vacon
Category: PLC & VFD
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