Rockwell Automation 1746-NT4 Series B,D17466.6.1 SLC 500 4-Channel Thermocouple/mV Input Module User Manual User Manual

Page 5

Advertising
background image

i

Publication 1746-UM007C-EN-P - July 2004

Table of Contents

Preface

Who Should Use this Manual. . . . . . . . . . . . . . . . . . . . . . . P-1
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . P-2
Your Questions or Comments on this Manual . . . . . . . . P-3

Common Techniques Used in this Manual . . . . . . . . . . . . . P-3

Chapter 1

Overview

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
General Diagnostic Features . . . . . . . . . . . . . . . . . . . . . 1-3

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Module Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Thermocouple Compatibility . . . . . . . . . . . . . . . . . . . . 1-5
Linear Millivolt Device Compatibility. . . . . . . . . . . . . . . 1-7

Chapter 2

Quick Start for Experienced Users

Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Chapter 3

Installation and Wiring

Compliance to European Union Directives . . . . . . . . . . . . . 3-1

EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
NT4 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Module Location in Chassis . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Fixed Expansion Chassis Considerations . . . . . . . . . . . . 3-3
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Module Installation and Removal . . . . . . . . . . . . . . . . . . . . 3-5

Terminal Block Removal . . . . . . . . . . . . . . . . . . . . . . . 3-6
Module Installation Procedure . . . . . . . . . . . . . . . . . . . 3-6
Module Removal Procedure . . . . . . . . . . . . . . . . . . . . . 3-7

Terminal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Wiring Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Wiring Input Devices to the NT4 . . . . . . . . . . . . . . . . . 3-11
Cold Junction Compensation (CJC) . . . . . . . . . . . . . . . . 3-12

Thermocouple Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Chapter 4

Preliminary Operating
Considerations

Module ID Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Output Image-Configuration Words . . . . . . . . . . . . . . . 4-2
Input Image-Data Words and Status Words . . . . . . . . . . 4-3

Channel Filter Frequency Selection . . . . . . . . . . . . . . . . . . 4-4

Advertising
This manual is related to the following products: