Wiring the S7-400

4

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 an S7-400 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

4-8

 

(Ungrounded Configuration)

 

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

4-15

 

Remote Connections

 

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

Automation System S7-400

Hardware and Installation

4-1

A5E00850741-01

 

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Image 61
Siemens installation manual Wiring the S7-400