Page – 116/139 AFFZP0BB – ACE3 – User Manual
Troubleshooting:
This type of fault is not related to external components. Replace the logic board.
32) EPS RELAY OPEN
Cause:
The controller receives from EPS information about the safety contacts being
open.
Troubleshooting:
Verify the EPS functionality.
33) VACC NOT OK
Cause:
At key-on and immediately after that, the travel demands have been turned off.
This alarm occurs if the ACCELERATOR reading (in TESTER function) is more
than 1 V above the minimum value acquired during the PROGRAM VACC
procedure.
Troubleshooting:
- Check the wirings.
- Check the mechanical calibration and the functionality of the accelerator
potentiometer.
- Acquire the maximum and minimum potentiometer value through the
PROGRAM VACC function.
- If the problem is not solved, replace the logic board.
34) STALL ROTOR
Cause:
The traction rotor is stuck or the encoder signal is not correctly received by the
controller.
Troubleshooting:
- Check the encoder condition.
- Check the wiring.
- Through the TESTER function, check if the sign of FREQUENCY and
ENCODER are the same and if they are different from zero during a traction
request.
- If the problem is not solved, replace the logic board.
35) PARAM RESTORE
Cause:
The controller has restored the default settings. If a CLEAR EEPROM has been
made before the last key re-cycle, this warning informs you that EEPROM was
correctly cleared.
Troubleshooting
:
- A travel demand or a pump request cancel the alarm.
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