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Power supply module (PSM) Chapter 10
Hardware modules
6 Power supply module (PSM)
6.1 Application
The power supply module, PSM, with built in binary I/O is used in 1/2 and 3/4 of full width 19”
units. It has four optically isolated binary inputs and five binary outputs, out of which one binary
output is dedicated for internal fail.
6.2 Design
The power supply modules contain a built-in, self-regulated DC/DC converter that provides full
isolation between the terminal and the battery system.
The power supply module, PSM, has four optically isolated binary inputs and four output relays.
6.3 Function block
Figure 35: Binary I/O on the power supply module PSM
6.4 Input and output signals
Table 167: Input signals for the I/O-module (IO02-) function block (I/O on PSM)
Path in local HMI: ServiceReport/I/O/slotnn-PSMn/FuncOutputs
IO02-
I/O-MODULE
POSITION
BLKOUT
BO1
BO2
BO3
BO4
BONAME01
BONAME02
BONAME03
BONAME04
BINAME01
BINAME02
BINAME03
BINAME04
ERROR
BI1
BI2
BI3
BI4
xx00000236.vsd
Signal Description
POSITION I/O module slot position connector
BLKOUT Block output signals
BO1-BO4 Binary output data
BONAME01-BONAME04 Output name string settings
BINAME01-BINAME04 Input name string settings
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