Page – 38/155 AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual
U 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.
4 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).
5.2.3 Wirings: I/O connections
- After crimping cables, verify that all strands are entrapped in the wire barrel.
- Verify that all crimped contacts are completely inserted in the connector
cavities.
- For information about pin assignment, see chapter 4.
U A cable connected to the wrong pin can lead to short circuits and failures;
so, before turning on the truck for the first time, verify with an ohmmeter
Module
1
Module
2
Module
3
R
R
Can bus
Power cables
Centre of the Ground connection
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