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4 wiring the s7- 400, Wiring the s7-400 – Siemens Automation System S7-400 User Manual

Page 61

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4-1

Automation System S7-400 Hardware and 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 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

(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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