Zapi DUALACE2 NEW GENERATION User Manual

Page 136/169 AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
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.
M/S PAR CHK MISM (MDI/LED code = 97)
Cause:
At start-up there is a mismatch in the parameter checksum between the master
and the supervisor microcontrollers.
Troubleshooting:
Restore and save again the parameters list.
COIL SHOR. MC (MDI/LED code = 76)
Cause:
This alarm occurs when there is an overload of the MC driver (pin A26). As soon
as the overload condition disappears, the alarm will be removed automatically by
releasing and then enabling a travel demand.
Troubleshooting:
The typical root cause is in the wiring harness or in the load coil. So the very first
check to carry out concerns the connections between the controller outputs and
the loads.
Collect information about characteristics of the coils connected to the two drivers
and ask for assistance to a Zapi technician in order to verify that the maximum
current that can be supplied by the hardware is not exceeded.
COIL SHOR. EB (MDI/LED code = 76)
Cause:

Zapi DUALACE2 NEW GENERATION Specifications

General

Brand	Zapi
Model	DUALACE2 NEW GENERATION
Category	Controller
Language	English