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Siemens Automation System S7-400 User Manual

Page 37

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Installing the S7-400

2-21

Automation System S7-400 Hardware and Installation

A5E00850741-01

Cover

Quick-release locks

Cover

Snap catches

Snap hinges

Cover fitted at bottom

Cover fitted at back

(supply air from the rear)

(supply air from below)

Base

Base

Delivered state:

Shipping state

The cover is fitted in the base of the cable duct or fan subassembly. Air is supplied
from the back.

Filter Mat (Optional)

To filter the air supply, you can fit a filter mat for the cable duct and fan
subassembly. The filter mat is optional and is not part of the cable duct or fan
subassembly.

Like the cover, the filter mat can be inserted flat in the base or at its rear edge in
the corresponding snap hinges or quick-release locks.