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Correct Layout:
Note: Module 1 power ≈ Module 2 power > Module 3 power
In this case, the power cables of the two similar controllers must be as short as
possible. Of course also the diameter of the cables concurs in the voltage drops
described before (a greater diameter brings to a lower impedance), so in this last
example the cable between negative battery terminal and the center of the
ground connection (pointed by the arrow in the image) must be sized taking into
account both thermal and voltage drop problems and considering the current
drawn from the battery by the overall system.
The complexity of modern systems needs more and more data, signal and
information must flow from a node to another. CAN bus is the solution to different
problems that arise from this complexity.
- simple design (readily available, multi sourced components and tools)
- low costs (less and smaller cables)
- high reliability (fewer connections)
- ease of analysis (easy connection with a pc for sniffing the data being
transferred onto the bus).
5.2.5 Wirings: I/O connections
-
After crimping the cable, verify that all strands are entrapped in the wire
barrel.
-
Verify that all the crimped contacts are completely inserted on the connector
cavities.
-
For information about pin assignment, see chapter 3.2.
-
Very high currents may circulate between motor controller and battery. Even
if cables are dimensioned correctly, this may lead to a significant voltage
drop between motor controller B- terminal and negative terminal on the
battery. This means that there may be voltage differences between GND
references of different units in a control system. Therefore it is strongly
recommended to connect all wires of sensors supplied by the motor
controller directly to the intended I/O connector pins.
-
Consider an alternative path for I/O cables that generates less noise (EMC).
AFNZPxxx– DUALACE2 NEW GENERATION – User Manual
R
Can bus
Power cables
Module
1
Centre of the Ground connection
Module
2
Module
3
R
Page 55/169
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Troubleshooting
Need help?
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