Assembling and Installing Systems
A-14
Automation System S7-400 Hardware and Installation
A5E00850741-01
Handling the Shields
Observe the following points with regard to the shield:
• Only use cable clamps made of metal to s ecure braided shields. The clamps
must surround the shield over a large area and provide good contact.
• Connect the shield to a shield bus immediately after entry of the cable into the
cabinet. R oute the shield to the module but do not connect it there again to the
chassis ground or the shield bus.
• For installation other than in cabinets (for example, wall mounting), you can
provide contact between the cable shields and the cable duct.
Shown in the figure A-4 are some methods of securing shielded cables with cable
clamps.
Figure A-4 Mounting Cable Shields
To Next Page
Loading...
