Zapi ACE0 2mC - Page 118

Page – 118/155 AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual
Troubleshooting
- Check the wiring, in order to verify if LC coil is connected to the right
connector pin and if it is not interrupted.
- If the alarm is still present, than the problem is inside the logic board;
replace it.
LIFT+LOWER (MDI/LED code = 49)
Cause:
Both the pump requests (LIFT and LOWER) are active at the same time.
Troubleshooting:
- Check that LIFT and LOWER requests are not active at the same time.
- Check the LIFT and LOWER input states through the TESTER function.
- Check the wirings.
- Check if there are failures in the microswitches.
- If the problem is not solved, replace the logic board.
LOGIC FAILURE #1 (MDI/LED code = 19)
Cause
This fault is displayed when the controller detects an undervoltage condition
at the KEY input (A10). Undervoltage threshold depends on the nominal
voltage of the controller.
Nominal voltage 24V 36/48V 72/80V 96V
Undervoltage threshold 10V 10V 30V 30V
Troubleshooting (fault at startup or in standby)
- Fault can be caused by a key input signal characterized by pulses below
the undervoltage threshold, possibly due to external loads like DC/DC
converters starting-up, relays or contactors during switching periods,
solenoids energizing or de-energizing. Consider to remove such loads.
- If no voltage transient is detected on the supply line and the alarm is
present every time the key switches on, the failure probably lies in the
controller hardware. Replace the logic board.
Troubleshooting (fault displayed during motor driving)
- If the alarm occurs during motor acceleration or when there is a
hydraulic-related request, check the battery charge, the battery health
and power-cable connections.
LOGIC FAILURE #2 (MDI/LED code = 18)
Cause
Fault in the hardware section of the logic board which deals with voltage
feedbacks of motor phases.
Troubleshooting
The failure lies in the controller hardware. Replace the controller.
LOGIC FAILURE #3 (MDI/LED code = 17)
Cause
A hardware problem in the logic board due to high currents (overload). An
overcurrent condition is triggered even if the power bridge is not driven.
Troubleshooting
The failure lies in the controller hardware. Replace the controller.