Applicable Systems
Modicon M221
Modicon M241
Modicon M251
Modicon M340
Modicon M580
Altivar
Symptoms
Motor time constant fault detected.
Possible Causes
- Motor thermal time constant incorrect
- Motor parameters wrong
- Motor model mismatch
Troubleshooting Steps
- Step 1: Verify motor thermal time constant
Constant correct - Step 2: Check motor parameters
Parameters match motor - Step 3: Run motor autotune
Autotune completes
How to Reset
Reset via control panel after motor parameters are corrected.
Source: Schneider Electric ATV320 Programming Manual
Category: PLC & VFD