Wiring the S7-400
4-47
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
4.26 Routing Cables Using Cable Ducts or Fan Subassemblies
Cable Routing
Depending on the number of cables and plug-in lines merging at the particular
rack, the cross-section of the cable duct or fan subassembly may not be sufficient
to accept all cables.
You should therefore route half the cables toward each side via the cable duct or
fan subassembly.
Securing Cables
There are eyes for securing cables on both sides of the cable duct or fan
subassembly (see
Reference Manual
, Chapter 9). You can secure the cables to
these eyes with cable ties, for example.
Shield Contact
The cable duct and fan subassembly offer the facility of electrical contact for cable
shields. You can use the shield clamps provided (see
Reference Manual
, Chapter
9).
To establish contact for the cable shields, strip the outer insulation in the region of
the shield clamp, and trap the cable shield under the shield clamp.
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