29

Thermistor fault

Vacon · 20 Compact AC Drive

What does 29 mean?

The thermistor input of an option board has detected an increase in the motor temperature beyond set limits, or there is an issue with the thermistor connection itself. This fault indicates a risk of motor overheating.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If the thermistor input of the option board is not in use, ensure it is correctly short-circuited as per installation instructions.

Source: Vacon 20 Compact AC Drive
Open Manual (Page 56)