DL205 User Manual, 4th Edition, Rev. D
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Table of Contents
Chapter 2: Installation, Wiring and Specifications 2–1
Safety Guidelines 2–2
Plan for Safety 2–2
Three Levels of Protection 2–3
Emergency Stops 2–3
Emergency Power Disconnect 2–4
Orderly System Shutdown 2–4
Class 1, Division 2, Approval 2–4
Mounting Guidelines 2–5
Base Dimensions 2–5
Panel Mounting and Layout 2–6
Enclosures 2–7
Environmental Specifications 2–8
Power 2–8
Marine Use 2–9
Agency Approvals 2–9
24 VDC Power Bases 2–9
Installing DL205 Bases 2–10
Choosing the Base Type 2–10
Mounting the Base 2–10
Using Mounting Rails 2–11
Installing Components in the Base 2–12
Base Wiring Guidelines 2–13
Base Wiring 2–13
I/O Wiring Strategies 2–14
PLC Isolation Boundaries 2–14
Powering I/O Circuits with the Auxiliary Supply 2–15
Powering I/O Circuits Using Separate Supplies 2–16
Sinking / Sourcing Concepts 2–17
I/O “Common” Terminal Concepts 2–18
Connecting DC I/O to “Solid State” Field Devices 2–19
Solid State Input Sensors 2–19
Solid State Output Loads 2–19
Relay Output Guidelines 2–21
Relay Outputs – Transient Suppression for Inductive Loads in a Control System 2–21
I/O Modules Position, Wiring, and Specification 2–26
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