Danfoss Vacon NXP Applications Manual page 133

Fault codes
F56 PT100 temperature fault
The PT100 protection function is used to measure temperature and give a warning and/or a fault
when the set limits are exceeded. The marine application supports two PT100 boards. One can be
used for the motor winding and the other for the motor bearings.
Possible cause:
-
Temperature limit values set for the PT100 board parameters have been exceeded.
Correcting measures:
- Find the cause of temperature rise.
F57 Identification (Not implemented)
Identification run has failed.
Possible cause:
- There was load on the motor shaft when making the identification run with a rotating motor.
- Motoring or generator side torque/power limits are too low to achieve a stable run.
Correcting measures:
- Run command was removed before the identification was ready.
- Motor is not connected to the AC drive.
- There is load on the motor shaft.
F58 Mechanical brake (Not implemented)
This fault is generated when the acknowledge signal from the brake is used. If the status of the
signal is opposite from the control signal for a longer period of time than the delay defined
Brake Fault Delay
with P2.15.11
Correcting measures:
- Check the condition and connections of the mechanical brake.
F59 SystemBus communication
The master drive sends pulses to all follower drives. If the pulses are missing, a system bus
communication fault is generated. The master drive also receives pulses back from the
follower drives (max. four drives) and generates warnings if pulses are missing.
SystemBus communication is broken between master and follower.
Correcting measures:
- Check expander board parameters.
- Check optical fibre.
- Check option board jumpers.
24-hour support: +358 (0)201 212 575 • Email: vacon@vacon.com
, a fault is generated.
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