Siemens Panel PC 670 Equipment Manual page 41

Removing the
computing unit
completely
Display
2
cable K2 )
I/O USB
2
cable K1 )
1
) Slits for mounting rail
2
) Cable folded: 200 mm longer than illustrated
Fig. 4-2 Rear side of operating unit with positions of interfaces
Securing the
computing unit
SIMATIC Panel PC 670 / 870 Operating Unit, Equipment Manual
Edition 07/02
To remove the computing unit completely, continue as follows:
Remove the cable connectors K1 and K2 of the operating unit (see Fi-
3.
gure 4-2) from their corresponding counterparts on the computing unit.
Two mounting rails are screwed to the computing unit. The two ends of
these rails are formed as clips (see Figure 4-1).
Lift the computing unit off horizontally by removing these clips from the
4.
corresponding slits on the operating unit (see Figure 4-2 below).
Place the computing unit down carefully.
5.
1
)
1
)
If necessary, you can now remove the operating unit by loosening the six
clamps which secure the operating unit to the mounting panel (see Figure
3-3).
Reinstall and swing the computing unit back into place in the reverse order
to that described above.
Maintenance
1
)
1
)
4-3