Installation and Commissioning
8-177SA6 Manual
C53000-G1176-C156-2
o Unfasten the screw-posts of the D-subminiature connector on the back panel at loca-
tion “A” and “C”. This activity does not apply if the device is for surface mounting.
o If there are additional interfaces on location “B” and “D” next to the interfaces at loca-
tion “A” to “C”, remove the screws located diagonally to the interfaces. This activity is
not necessary if the device is for surface mounting.
o Remove the four or six caps on the front cover and loosen the screws that become
accessible.
o Carefullytakeoffthefrontcover.ThefrontcoverisconnectedtotheCPUboardwith
a short ribbon-cable. With device versions with a detached operator panel it is possible
to remove the front cover of the device right after having unscrewed all screws.
o Disconnect the ribbon cable between the front cover and the C-CPU-2 board ()at
the front cover side. To disconnect the cable, push up the top latch of the plug con-
nector and push down the bottom latch of the plug connector. Carefully draw out the
plug connector.
This action does not apply to the device version with detached operator panel. How-
ever, on the central processor unit C-CPU-2 (
) the 7-pole plug connector X16 behind
the D-subminiture connector and the plug connector of the ribbon cable (connected to
the 68pole plug connector on the rear side) must be removed.
o Disconnect the ribbon cables between the C-CPU-2 unit () and the input/output
printed circuit boards (depending on the version
to ).
o Remove the boards and set them on the grounded mat to protect them from ESD dam-
age. A greater effort is required to withdraw the C-CPU-2 board, especially in versions
of the device for surface-mounting, because of the communication connectors.
o Check the jumpers according to Figures 8-12 to 8-18 and the following information
Change or remove the jumpers as necessary.
The order of the boards for housing size
1
/
3
isshowninFigure8-9,forhousingsize
1
/
2
refertoFigure8-10andhousingsize
1
/
1
in Figure 8-11.
Caution!
Electrostatic discharges through the connections of the components, wiring, plugs,
andjumpersmustbe avoided.Wearing a groundedwriststrapis preferred.Otherwise,
first touch a grounded metal part.
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