Dynamic DX Power Module PMB Installation Manual page 25

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Example:
Consider a Power Module connected to an SLM via five other DX Modules using
1 metre cables.
DX Power Module
I
DX DX DX DX DX
SLM
Module Module Module Module Module
Battery
24V
Servo Motor
Example of DX Module interconnection
The total resistance of the 0 V return path, between the Power Module and SLM
is:
6 X (2 * R ct + R ca ) = 132 mOhms
This means that the maximum load that the SLM can drive and not exceed the
1.0 V drop requirement is 1 / 0.132 = 8 A.
If, for example, the servo motor and lighting that the SLM is required to drive has
a peak current of 10 A the interconnection order of the DX modules will have to
be changed to place the SLM closer to the Power Module.
The above example illustrates a fundamental rule of DX Module interconnection
All DX Modules that connect to high current loads (e.g. actuators / motors
and lights) must be connected as close to the Power Module as possible.
The above example is simplified and does not include current to other DX
Modules. The DXBUS maximum current rating of 12 A is for the entire DX
System.
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