Zapi ACE0 2mC - Page 115

AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual Page – 115/155
- If the problem is not solved, replace the logic board.
EVP2 DRIVER OPEN (MDI/LED code = 10)
Cause:
The EVP2 driver is not able to drive the EVP2 coil. The device itself or its
driving circuit is damaged.
Troubleshooting:
This fault is not related to external components. Replace the logic board.
EVP2 DRIV. SHORT. (MDI/LED code = 10)
Cause
- The EVP2 driver (output A23) is shorted.
- The microcontroller detects a mismatch between the valve set-point and
the feedback of the EVP2 output.
Troubleshooting
- Check if there is a short circuit or a low-impedance conduction path
between the negative of the coil and -B.
- Collect information about:
o the voltage applied across the EVP2 coil,
o the current in the coil,
o features of the coil.
Ask for assistance to Zapi in order to verify that the software diagnoses are
in accordance with the type of coil employed.
- If the problem is not solved, it could be necessary to replace the
controller.
FIELD ORIENT. KO (MDI/LED code = 36)
Cause
The error between the Id (d-axis current) setpoint and the estimated Id is out
of range.
Troubleshooting
Ask for assistance to a Zapi technician in order to do the correct adjustment
of the motor parameters.
FORW + BACK (MDI/LED code = 80)
Cause:
This alarm occurs when both the travel requests (FW and BW) are active at
the same time.
Troubleshooting:
- Check that travel requests are not active at the same time.
- Check the FW and BW input states through the TESTER function.
- Check the wirings relative to the FW and BW inputs.
- Check if there are failures in the microswitches.
- If the problem is not solved, replace the logic board.
HANDBRAKE (MDI/LED code = 46)
Cause:
Handbrake input is active.
Troubleshooting:
- Check that handbrake is not active by mistake.