Applicable Systems
Modicon M221
Modicon M241
Modicon M251
Modicon M340
Modicon M580
Altivar
Symptoms
Capacitor charging relay fault detected.
Possible Causes
- Charging relay stuck open or closed
- Relay control circuit fault
- Internal component failure
Troubleshooting Steps
- Step 1: Check charging relay operation
Relay operates correctly - Step 2: Verify relay control circuit
Circuit functional - Step 3: Replace relay if faulty
New relay operates correctly
How to Reset
Reset via control panel after relay repair.
Source: Schneider Electric ATV320 Programming Manual
Category: PLC & VFD