Installation manual

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S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
Assembling and Installing Systems
Chapter Overview
Section Description Page
A.1 General Rules and Regulations for Operating the S7-400 A-2
A.2 Principles of System Installation for EMC A-5
A.3 Installation of Programmable Controllers for EMC A-9
A.4 Examples of EMC-Compatible Assembly A-10
A.5 Shielding Cables A-13
A.6 Equipotential Bonding A-15
A.7 Cabling Inside Buildings A-17
A.8 Cabling Outside Buildings A-19
A.9 Lightning Protection und Overvoltage Protection A-20
A.9.1 Lightning Protection Zone Concept A-21
A.9.2 Rules for the Transition between Lightning Protection Zones 0 and 1 A-23
A.9.3 Rules for the Transitions between Lightning Protection Zones 1 <-> 2
and Greater
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A.9.4 Sample of a Surge Protection Circuit for Networked S7-400 PLCs A-28
A.10 How to Protect Digital Output Modules against Inductive Surge A-30
A.11 Safety of Electronic Control Equipment A-32
A.12 Interference-Free Connection of Monitors A-34
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