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

  1. Step 1: Verify motor thermal time constant
    Constant correct
  2. Step 2: Check motor parameters
    Parameters match motor
  3. Step 3: Run motor autotune
    Autotune completes

How to Reset

Reset via control panel after motor parameters are corrected.

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Source: Schneider Electric ATV320 Programming Manual

Category: PLC & VFD