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motor internal connections (ohmic continuity);
motor power-cables connections;
if the motor connections are OK, the problem is inside the controller; replace it.
If the alarm occurs while the motor is running, check:
motor connections;
that the LC power contact closes properly, with a good contact;
if no problem is found, the problem is inside the controller. Replace it.
WAITING FOR NODE (MDI/LED code = 0)
Cause:
The controller receives from the CAN bus the message that another controller in
the net is in fault condition; as a consequence the controller itself cannot enter
into an operative status, but it has to wait until the other node comes out from the
fault status.
Troubleshooting:
Check if any other device on the CAN bus is in fault condition.
WARNING SLAVE (MDI/LED code = 1)
Cause:
Warning on supervisor uC.
Troubleshooting:
Connect the Console to the supervisor uC and check which alarm is present.
WATCHDOG (MDI/LED code = 8)
Cause
This is a safety related test. It is a self-diagnosis test that involves the logic
between master and supervisor microcontrollers.
Troubleshooting
This alarm could be caused by a CAN bus malfunctioning, which blinds
master-supervisor communication.
WRONG ENC SET (MDI/LED code = 83)
Cause
Mismatch between "ENCODER PULSES 1" parameter and "ENCODER PULSES
2" parameter (see paragraph 8.2.7).
Troubleshooting
Set the two parameters with the same value, according to the adopted encoder.
WRONG KEY VOLT. (MDI/LED code = 41)
Cause
The measured key voltage is not the right one for the inverter.
Troubleshooting
Check if the SET KEY VOLTAGE parameter in the ADJUSTMENTS list is set in
accordance with the key voltage.
Check if the key voltage is ok using a voltmeter, if not check the wiring.
In case the problem is not solved, replace the logic board.
WRONG RAM MEM. (MDI/LED code = 71)
Cause
AFNZPxxx– DUALACE2 NEW GENERATION – User Manual
Page 145/169
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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