Specifications

Installation
4.3 Installing / uninstalling the extender modules for SCALANCE X414-3E
SCALANCE X-400 BA
88 Operating Instructions, 03/2009, C79000-G8976-C186-07
basic device. In this position, the extender module should not be able to slip off, however
it can be moved horizontally in both directions.
6. Push the extender module slowly to the left while keeping it straight and without skewing
and check that the two guide bolts on the extender fit into the holes in the basic device.
Then push the extender module to the left as far as it will go so that it is flush with the
right side of the basic device.
7. Using a slotted screwdriver with a 5.5 mm wide blade, tighten the captive screw between
slots 13 and 14 in the lower part of the extender module.
8. Using a slotted screwdriver with a 2.8 mm wide blade, tighten the two captive slug screws
on slot 11. The screws lock the two guide bolts, so do not use excessive force when
tightening them.
9. Fit the CV490 4x100 cover on slot 11 of the basic device. Make sure that the media
module terminal strips of slots not occupied by media modules have protective caps fitted
and that the CV490 2x100 covers are in place.
Figure 4-8 Installing the media module extender on the S7-300 standard rail
Removing the media module extender from the S7-300 standard rail
You require the following tools:
● slotted screwdriver with a 2,8 mm wide blade
● slotted screwdriver with a 5.5 mm wide blade
Note
To remove the extender, remove the media modules from slots 13 and 14.
When removing a media module extender from an S7-300 standard rail, the basic device
remains in position. Follow the steps below: