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connection is the daisy chain.

U Correct Layout:

Note: Module 1 power > Module 2 power > Module 3 power

The chain starts from the –BATT post of the controller that works with the

highest current, and the others are connected in a decreasing order of power.

Otherwise, if two controllers are similar in power (for example a traction and a

pump motor controller) and a third module works with less current, the best way

to deal this configuration is to create a common ground point (star configuration).

U Correct Layout:

Note: Module 1 power

≈ Module 2 power > Module 3 power

In this case the power cables starting from the two similar controllers must be as

short as possible. Of course also the diameter of the cable concurs in the voltage

drops described before (higher diameter means lower impedance), so in this last

example the cable between the minus of the Battery and the common ground

point (pointed by the arrow in the image) must be dimensioned taking into

account thermal and voltage drop problems.

4 Can advantages

The complexity of today systems needs more and more data, signal and

information must flow from a node to another. CAN is the solution to different

Module

Can Bus

Power cables

Center of the Ground connection

Module

Can Bus

Power cables

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Zapi AC-2 Manual de usuario Pagina 13