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Siemens S7-400 - Page 12

Siemens S7-400
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Contents
xii
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
4 Wiring the S7-400 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 Setting the VAC Power Supply Module to the Line Voltage 4-18. . . . . . . . . . . . .
4.13 Wiring the Power Supply Module 4-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.14 Wiring the Signal Modules 4-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.15 Wiring the Front Connector, Crimp Snap-On Terminals 4-26. . . . . . . . . . . . . . . .
4.16 Wiring the Front Connector, Screw-Type Terminals 4-27. . . . . . . . . . . . . . . . . . .
4.17 Wiring the Front Connector, Spring-Type Terminals 4-28. . . . . . . . . . . . . . . . . . .
4.18 Fitting the Strain Relief 4-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.19 Labeling a Front Connector 4-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.20 Fitting the Front Connector 4-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.21 Interconnecting the CR and ER(s) 4-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.22 Setting the Fan Subassembly to the Line Voltage and Wiring It 4-40. . . . . . . . .
4.23 Routing Cables Using Cable Ducts or Fan Subassemblies 4-42. . . . . . . . . . . .
4.24 Routing Cables Using Fiber-Optic Cables 4-42. . . . . . . . . . . . . . . . . . . . . . . . . . .

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