Rockwell Automation T3512 User Manual
ICS Regent
®
PD-6008
I/O Power Supply Modules
110 VAC, 220/240 VAC and 24 VDC
(T3510, T3511 and T3512)
Issue 1,
I/O power supply modules convert main line voltages of either
110 VAC, 220/240 VAC or 24 VDC to +15 VDC power that is
used to drive the I/O assembly (I/O chassis, I/O modules, and
I/O transceivers).
Three I/O power supply modules installed in an I/O power
supply chassis make up a triple redundant power supply unit.
March, 06
Features
·
Three modules provide triplicated power to as many as four
I/O assemblies.
·
Hot replaceable.
·
Front panel indicator on each module shows DC output
status.
·
TÜV certified for safety, Risk Class 5 (see Safety
Considerations).
Failed I/O power supply modules can be hot replaced without
interrupting system operation.
Module Operation
Triplicated Power Distribution
Each of the triple redundant I/O power supply modules within
the I/O power supply assembly provides power for one leg of
the three redundant legs of the I/O Safetybus transceivers,
and provides power to all the I/O modules within its associated
I/O chassis. Each I/O module contains a diode OR power
-
Industrial Control Services
1
I/O Power Supply Modules
sharing circuit that receives power from all three I/O power
supply modules.
Should any I/O power supply module fail, only one leg of the
transceiver modules will lose power: the two remaining legs
will maintain proper operation of the Regent. In addition, all
the I/O modules will continue to operate properly by drawing
their current from the two remaining power supplies within
the I/O power supply assembly.
(T3510, 11, and 12)
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Figure 1. I/O Power Distribution.
Input Power Regulation
A block diagram of a typical AC I/O power supply module is
shown in Figure 2. A DC I/O power supply module is shown in
Figure 3.
Industrial Control Services
I/O Power Supply Modules
(T3510, 11, and 12)
Figure 2. Block Diagram of an AC I/O Power Supply Module.
Figure 3. Block Diagram of
a DC I/O Power Supply Module.
PD-6008
Mar-06
Each primary power input is individually fused and filtered
(with both standard line filters and metal oxide varistors, or
MOVs) at the chassis. The filters are used to attenuate high
frequency common mode and normal mode noise that can be
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