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AutomationSystem S7-400 Hardwareand Installation
A5E00850741-01
Wiring the S7-400
Chapter Overview
Section Description Page
4.1 Supplying Power to Modules 4-2
4.2 Choosing the Power Supply Module 4-3
4.3 Choosing the Load Current Power Supply 4-4
4.4 Assembling anS7-400 with Process I/Os 4-5
4.5 Assembling an S7-400 with Grounded Reference Potential (M) 4-7
4.6 Assembling an S7-400 with Ungrounded Reference Potential
(Ungrounded Configuration) 4-8
4.7 Assembling an S7-400 with Isolated Modules 4-10
4.8 Parallel Wiring of Digital S7-400 Outputs 4-12
4.9 Grounding 4-13
4.10 Interference-Free Configuration for Local and
Remote Connections 4-15
4.11 Wiring Rules 4-17
4.12 Wiring the Power Supply Module 4-18
4.13 Wiring the Signal Modules 4-22
4.14 Wiring the Front Connector, Crimping 4-24
4.15 Wiring the Front Connector, Screw Terminals 4-25
4.16 Wiring the Front Connector, Spring-Type Terminals 4-26
4.17 Fitting the Strain Relief 4-28
4.18 Labeling a Front Connector 4-29
4.19 Fitting the Front Connector 4-32
4.20 Interconnecting the CR and ER(s) 4-35
4.21 Setting the Fan Subassembly to the Line Voltage and Wiring It 4-37
4.22 Cable routing in cable ducts or fan subassemblies 4-38
4.23 Routing Fiber-Optic Cables 4-38
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