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11.1.6
Removing the power supply module
Only qualified personnel are allowed to replace the power supply unit.
Preparations
1. Isolate the device from mains and disconnect all connecting cables.
2. Open the device.
Removing the power supply unit
How to remove the power supply unit
1.
2.
3.
4.
5.
6.
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01
WARNING
Disconnect the power cables from the disk
drives and motherboard.
Remove the tie-wraps holding the power
cables in the housing.
Remove the mounting screws (TORX T10)
(2) of the retainer panel.
Lift the power supply unit out of the
enclosure until you can access the power
cable of the floppy disk drive and of the bus
board.
Disconnect the power cables from the floppy
drive and from the bus board.
Remove the mounting screws (1) of the
power supply unit from the retainer panel.
11.1 Removing and installing hardware components
Maintenance and service
83
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