Danfoss Vacon NXP Applications Manual page 129

Fault codes
F24 Counter fault
Possible cause:
- Values displayed on the counters are incorrect.
Correcting measures:
-
Have a critical attitude towards values shown on the counters.
F25 Microprosessor watchdog fault
Possible cause:
- Start-up of the drive has been prevented.
-
Run request is ON when a new application is loaded to the drive
Correcting measures:
- Reset the fault and restart.
- If the fault re-occurs, contact your local distributor.
F26 Start-Up prevention
Possible cause:
- Start-up of the drive has been prevented.
- Run request is ON when a new application is loaded to drive
Correcting measures:
- Cancel the prevention of the start-up if this can be done safely.
- Remove Run Request.
F29 Thermistor fault
The thermistor input of the option board has detected too high a motor temperature.
Possible cause:
- LCL is overheated.
- Thermistor cable is broken.
Correcting measures:
- Check LCL cooling and load.
- Check thermistor connection (If thermistor input of the option board is not in use it has to be
short circuited).
24-hour support: +358 (0)201 212 575 • Email: vacon@vacon.com
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