Danfoss Vacon NXP Applications Manual page 131

Fault codes
F40 Device unknown
An unknown option board or drive.
S1 = Unknown device.
S2 = Power1 not same type as Power2.
Correcting measures:
- Contact your local distributor.
F41 IGBT temperature
IGBT inverter bridge overtemperature protection has detected too high a short term overload
current.
Correcting measures:
- Check the load.
- Check the motor size.
- Make an Identification Run.
F42 Brake resistor overtemperature
S1: Brake resistor high temperature.
Calculation for an internal brake resistor has exceeded the tripping limit. If the internal brake
resistor is not in use, set the brake chopper parameter in System menu to
S2: Brake resistor resistance is too high.
S3: Brake resistor resistance is too low.
S4: No brake resistor detected.
F44 Device changed (Default param.)
Possible cause:
- Option board or power unit is changed.
- New device of different type or different rating from the previous one.
Correcting measures:
- Reset.
- Set the option board parameters again if option board was changed. Set the drive parameters
again if the power unit was changed.
F45 Device added (default param.)
Possible cause:
- Option board of different type added.
Correcting measures:
- Reset.
- Set the option board parameters again.
24-hour support: +358 (0)201 212 575 • Email: vacon@vacon.com
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