2. Assembly Trusted Power System
6 Issue 11 Rockwell Automation Publication PD-T823X
Output terminal blocks on each Power Shelf have three M4 screw connections. Ring type
connectors should be used when connecting from the Power Shelf to system power
distribution busbars.
The Power Port plugs into the back of the Power Shelf and requires a 24 V supply. The
Power Port can provide monitoring and control via a 25 way D connector when connected
to a Power Controller. A separate connector (CON3) via a push fit connector (supplied),
provides DC and AC fail contacts. When more than one Power Shelf is used, Power Ports are
linked via the CS terminal, using a Power Shelf Interconnect cable to enable current sharing.
Spare slots in the Power Shelf are covered by Power Shields.
The 1U Power Controller is connected via the Power Port, using a TC-323 Power Shelf
Interconnect ribbon cable, and allows live configuration of output voltage. The Power
Controller can monitor up to 12 Power Packs in 4 Power Shelves. Each Power Shelf is
identified by the Power Controller by selecting addresses on the Power Port as described in
paragraph 5.2.4.
Unused slots in the 4U brackets may be used for other equipment or fitted with blanking
plates.
Unused connectors on the TC-323 ribbon cable should be tied back and left unused.
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