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10 DIAGNOSTIC SYSTEM
The diagnostic system of DUALACE2 New Gen provides the operator with
information about a wide set of faults or problem that the controller can
encounter.
Faults which cause the power section to stop, meaning the power bridge opens
and, when possible, the main contactor opens and the electromechanical brake is
applied. They can be related to hardware failures that forbid to run the motor or
safety-related failures.
Problems which do not imply to stop the truck or allow to stop it by mean of a
controlled regenerative braking. The controller still works, but it has detected
conditions that require to stop the truck or at least to reduce its performance.
Detailed information about each alarm is given in paragraphs 10.2 and 10.4.
10.1 ALARMS menu
The ALARMS logbook in the records the alarms occurred on the controller. It has
a FIFO (First Input First Output) structure which means that the oldest alarm is
lost when the database is full and a new alarm occurs. The logbook is composed
of locations where it is possible to stack different types of alarms with the
following information:
1) the alarm code;
2) the number of times each alarm has consecutively occurred;
3) the hour-meter value at the last occurrence of each alarm;
4) the inverter temperature at the first occurrence of each alarm.
This function permits a deeper diagnosis of problems as the recent history of the
controller can be revised.
NOTE: if the same alarm is continuously happening, the controller does not use
new memory of the logbook, but only updates the last memory cell increasing the
related counter (point 2) of previous list). Nevertheless, the hour-meter indicated
in this memory refers to the first time the alarm occurred. In this way, comparing
this hour-meter with the controller hour-meter, it is possible to determine:
- When this alarm occurred the first time.
- How many hours are elapsed from the first occurrence to now.
- How many times it has occurred in this period.
For simple visual diagnosis of system faults and for monitoring the system status,
a red LED is provided on the body of the controller. It is ON at the start-up and
then it stays continuously OFF when there is no fault; when there is a fault it
flashes several times, with a repeated pattern that identifies a specific alarm.
10.2 Diagnoses
The microcontroller constantly monitors the inverter and carries out a diagnostic
procedure on the main functions.
AFNZPxxx– DUALACE2 NEW GENERATION – User Manual
Page 121/169
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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