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This alarm occurs when there is an overload of the EB driver (pin A28). 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.
MOT.PHASE SH. XX (MDI/LED code = 47)
Cause
Short circuit between two motor phases. The hexadecimal value "XX" identifies
the shorted phases:
36: U – V short circuit
37: U – W short circuit
38: V – W short circuit
Troubleshooting
Verify the motor phases connection on the motor side.
Verify the motor phases connection on the inverter side.
Check the motor power cables.
Replace the controller.
If the alarm does not disappear, the problem is in the motor. Replace it.
MOTOR TEMPERAT. (MDI/LED code = 65)
Cause:
This warning occurs when the temperature sensor has overtaken the MAX.
MOTOR TEMP. threshold (if analog) (see paragraph 8.2.5).
Troubleshooting:
Check the temperature read by the thermal sensor inside the motor through the
MOTOR TEMPERATURE reading in the TESTER function.
Check the sensor ohmic value and the sensor wiring.
If the sensor is OK, improve the cooling of the motor.
If the warning is present when the motor is cool, replace the controller.
MOTOR TEMP. STOP. (MDI/LED code = 65)
Cause:
This warning occurs when the temperature sensor is open (if digital) or if it has
overtaken the TEMP. MOT. STOP threshold (if analog) (see paragraph 8.2.5).
Troubleshooting:
Check the temperature read by the thermal sensor inside the motor through the
MOTOR TEMPERATURE reading in the TESTER function.
Check the sensor ohmic value and the sensor wiring.
If the sensor is OK, improve the cooling of the motor.
If the warning is present when the motor is cool, replace the controller.
NO CAN MSG. XX (MDI/LED code = 67)
Cause
AFNZPxxx– DUALACE2 NEW GENERATION – User Manual
Page 137/169
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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