DtF

Motor Over Temperature

Schneider Electric · Altistart 22 Soft Starter

What does DtF mean?

The motor's embedded PTC (Positive Temperature Coefficient) probes have detected an excessive temperature, indicating that the motor is overheating. This is a critical fault that can lead to rapid motor degradation and failure if not addressed.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Verify the 'PtC' setting in the 'PrO' menu (page 59) is correctly configured for the motor's PTC probes and protection strategy.

  2. 4

    Allow the motor to cool down completely to a safe operating temperature before attempting to restart.

Source: Schneider Electric Altistart 22 Soft Starter
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