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5.4.2
Installation and Startup
Jumper Settings
Removing and
Inserting the
Module
!
Insertion
System Manual
C79000-G8576-C199-07
CPUs, Memory Cards, Memory Submodules, Interface Submodules
Note
All jumpers on the CPU 928B are required by the manufacturer for quality
testing. You must not change the jumper settings.
Caution
Switch off the power supply before removing or inserting the module. The
basic board and expansion board of the CPU 928B are one unit and must not
be separated.
Proceed as follows to insert the CPU in the central controller:
Step
Action
1
Release the upper locking bar of the central controller and ensure
that the locking pin for the module is correctly positioned with the
slot-head horizontal.
2
Select the correct slot (based on the labelling of the locking bar).
Insert the CPUs in the S5-135U/155U from slot 11.
3
Push the module evenly into the guide rail until the lever over the
locking pin is horizontal.
4
Press the locking pin inwards on the bottom of the module and
o
rotate it 90
clockwise.
5
Secure the upper locking bar.
5-45
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