Rockwell Automation Publication 5069-UM002A-EN-P - January 2019 27
CompactLogix 5480 System Chapter 1
Track SA Power Bus Current Draw
We recommend that you track the SA power bus current draw, max, per
module, and collectively for the CompactLogix 5480 system.
You must make sure that the Compact 5000 I/O modules that are installed on
an SA power bus do not consume more than 10 A. If so, you must establish
another SA power bus.
Consider the following with this example:
• The values in this example represent a worst-case calculation. That is, all
modules that draw SA power bus current, draw the maximum available
on the module.
• Not all modules that are shown in
Figure 6 use SA power bus current.
For example, the 5069-OW4I module only passes SA power bus current
to the next module.
Some other Compact 5000 I/O modules do not use SA power bus
current. For a complete list of the modules that do not use SA power bus
current, see the Compact 5000 I/O Modules and EtherNet/IP Adapters
Specifications Technical Data, publication
5069-TD001.
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