Vacon NX ACTIVE FRONT END II, Applications Manual

Page: 86 / 94

86 • Vacon arfiff05 Standard AFE-II
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
F22 EEPROM checksum fault
Possible cause:
1.
Parameter save fault
2. Faulty operation
3. Component failure
Correcting measures:
1.
Should the fault re-occur, contact your local distributor.
F24 Counter fault
Possible cause:
1.
Values displayed on counters are incorrect
Correcting measures:
1.
Have a critical attitude towards values shown on counters.
F25 Microprosessor watchdog fault
Possible cause:
1.
Start-up of the drive has been prevented.
2. Run request is ON when a new application is loaded to the drive.
Correcting measures:
1.
Reset the fault and restart.
2. Should the fault re-occur, contact your local distributor.
F26 Start-Up prevention
Possible cause:
1.
Start-up of the drive has been prevented.
2. Run request is ON when a new application is loaded to drive
Correcting measures:
1.
Cancel prevention of start-up if this can be done safely.
2. Remove Run Request.
F29 Thermistor fault
The thermistor input of the option board has detected too high a motor temperature.
Possible cause:
1.
Motor is overheated.
2. Thermistor cable is broken.
Correcting measures:
1.
Check motor cooling and load
2. Check thermistor connection(If thermistor input of the option board is not in use it has to
be short circuited).