Applicable Systems
Modicon M221
Modicon M241
Modicon M251
Modicon M340
Modicon M580
Altivar
Symptoms
Mains voltage control fault detected.
Possible Causes
- Voltage regulation fault
- Transient voltage event
- Internal voltage monitoring fault
Troubleshooting Steps
- Step 1: Measure mains voltage
Voltage within rated range - Step 2: Check voltage monitoring circuit
Circuit functional - Step 3: Verify regulation settings
Settings correct
How to Reset
Reset via control panel after voltage control is restored.
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Source: Schneider Electric ATV320 Programming Manual
Category: PLC & VFD
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