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Check if there are failures in the microswitches.
If the problem is not solved, replace the logic board.
TORQUE PROFILE (MDI/LED code = 98)
Cause:
There is an error in the choice of the torque profile parameters.
Troubleshooting:
Check in the HARDWARE SETTINGS list the value of those parameters.
VACC NOT OK (MDI/LED code = 78)
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 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.
VACC OUT RANGE (MDI/LED code = 85)
Cause:
The CPOT input read by the microcontroller is not within the MIN VACC ÷ MAX
VACC range, programmed through the PROGRAMM VACC function (see
paragraph 9.1).
The acquired values MIN VACC and MAX VACC are inconsistent.
Troubleshooting:
Acquire the maximum and minimum potentiometer values through the
PROGRAM VACC function. If the alarm is still present, check the mechanical
calibration and the functionality of the accelerator potentiometer.
If the problem is not solved, replace the logic board.
VDC LINK OVERV. (MDI/LED code = 77)
Cause
This fault is displayed when the controller detects an overvoltage condition.
Overvoltage threshold depends on the nominal voltage of the controller (see
paragraph 2.4)
As soon as the fault occurs, power bridge and MC are opened. The condition is
triggered using the same HW interrupt used for undervoltage detection, uC
discerns between the two evaluating the voltage present across DC-link
capacitors:
High voltage Overvoltage condition
Low/normal voltage Undervoltage condition
Troubleshooting
If the alarm happens during the brake release, check the line contactor contact
and the battery power cable connection.
VDC OFF SHORTED (MDI/LED code = 88)
AFNZPxxx– DUALACE2 NEW GENERATION – User Manual
Page 143/169
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Troubleshooting
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Do you have a question about the DUALACE2 NEW GENERATION and is the answer not in the manual?
Questions and answers
Como comprobar el funcionamiento del controlador dualac2 sin display
You can check the operation of the Zapi DUALACE2 NEW GENERATION controller without a display using the following methods:
1. Zapi Smart Console – Connect the Zapi Smart Console to the CAN bus to access diagnostics and parameter settings.
2. PC CAN Console – Use the PC CAN Console software to monitor and adjust controller settings.
3. Self-Diagnosis Feature – The controller performs self-diagnosis, and faults can be displayed using Zapi tools.
4. Alarm History Log – Check the log of alarms to review past faults and system behavior.
5. TESTER Function – Use the TESTER function to monitor key operational readouts.
These methods allow you to diagnose and verify the controller’s operation without an external display.
This answer is automatically generated
A brumby electrical truck that has a zapi inv.dace2, records the failure 244 "Warning Slave It depends on the supervisor uc", and the alarm 248 "Mc is Opened, eb is applied". On the other hand, the LED does not turn on, but in the manual I did not find the LED code. I would like more certainty about whether the failure is from the controller and the LED code for this Zapi model.
Failure 244 "Warning Slave" depends on the supervisor microcontroller (µC). No specific effect or troubleshooting steps are provided in the available context.
Alarm 248 "MC is Opened, EB is Applied" indicates that the main contactor (MC) is open, and the electric brake (EB) is applied. This typically occurs during start-up, standby, or other system states.
The LED code for this model is not explicitly provided in the available context.
This answer is automatically generated