CTI 2552 Operating instructions

CTI 2552 EIGHT CHANNEL
ISOLATED RTD INPUT MODULE
INSTALLATION AND OPERATION GUIDE
Ver. 2.1
CTI Part # 062-00108
2552IOG 051403 $25

ii CTI 2552 Installation and Operation Guide
Copyright © 2005 Control Technology Inc.
All rights reserved.
This manual is published by Control Technology Inc., 5734 Middlebrook Pike, Knoxville, TN 37921.
This manual contains references to brand and product names which are tradenames, trademarks, and/or
registered trademarks of Control Technology Inc. Siemens® and SIMATIC® are registered trademarks
of Siemens AG. Other references to brand and product names are tradenames, trademarks, and/or
registered trademarks of their respective holders.
DOCUMENT DISCLAIMER STATEMENT
Every effort has been made to ensure the accuracy of this document; however, errors do occasionally
occur. CTI provides this document on an "as is" basis and assumes no responsibility for direct or
consequential damages resulting from the use of this document. This document is provided without
express or implied warranty of any kind, including but not limited to the warranties of merchantability
or fitness for a particular purpose. This document and the products it references are subject to change
without notice. If you have a comment or discover an error, please call us toll-free at 1-800-537-8398.

CTI 2552 Installation and Operation Guide iii
Figure 1 The 2552 8-Channel RTD Input Module
PREFACE
This Installation and Operation Guide provides installation and operation instructions for the CTI
2552 Eight Channel Isolated RTD Input Module for SIMATIC® 505 programmable controllers. We
assume you are familiar with the operation of SIMATIC® 505 series programmable controllers. Refer
to the appropriate SIMATIC® user documentation for specific information on the SIMATIC® 505
programmable controllers and I/O modules.
This Installation and Operation Guide is organized as follows:
Chapter 1 provides a description of the module.
Chapter 2 covers installation and wiring.
Chapter 3 is a guide to troubleshooting.

iv CTI 2552 Installation and Operation Guide

CTI 2552 Installation and Operation Guide v
TABLE OF CONTENTS
PREFACE .................................................................. iii
TABLEOFFIGURES ......................................................... vii
USAGECONVENTIONS....................................................... ix
CHAPTER1. DESCRIPTION................................................... 1
1.1AsynchronousOperation ............................................... 1
1.1.1 Compatibility with Immediate I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2100Ohmor120OhmRTDs ............................................ 1
1.3DigitalWordMap.................................................... 2
1.4RTDInputtoDigitalConversion......................................... 2
1.5EffectofOut-of-RangeInputSignals...................................... 3
1.6Resolution.......................................................... 4
CHAPTER2. INSTALLATION ................................................. 5
2.1PlanningtheInstallation ............................................... 5
2.2CalculatingtheI/OBasePowerBudget .................................... 5
2.3UnpackingtheModule................................................. 5
2.4ConfiguringtheModule................................................ 6
2.4.1 Select Temperature or Millivolt Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4.2 Selecting 3 Wire or 4 Wire Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4.3 Selecting 100 Ohm or 120 Ohm RTD Inputs . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4.4SelectingDigitalFiltering ...................................... 7
2.4.5 Select Degrees Celsius or Fahrenheit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5InsertingtheModuleIntotheI/OBase..................................... 8
2.6WiringtheInputConnectors ............................................ 9
2.7CheckingModuleOperation ........................................... 13
CHAPTER3. TROUBLESHOOTING............................................ 15
SPECIFICATIONS........................................................... 17
JUMPERSETTINGSLOGSHEET .............................................. 19
LIMITEDPRODUCTWARRANTY ............................................. 21
REPAIRPOLICY............................................................ 23

vi CTI 2552 Installation and Operation Guide

CTI 2552 Installation and Operation Guide vii
TABLE OF FIGURES
Figure 1 The 2552 8-Channel RTD Input Module ..................................... iii
Figure 2 Word Input to the PLC from the Module ..................................... 2
Figure 3 Example Change Input Level ............................................. 2
Figure 4 Effect of Voltage Input - 100 Ohm Platinum .................................. 3
Figure 5 Effect of Voltage Input - Millivolts ......................................... 3
Figure 6 Input Resolution ....................................................... 4
Figure 7 Factory Configuration Jumper Settings ..................................... 7
Figure 8 Configuration Jumper Locations .......................................... 8
Figure 9 Copper Wire Table at 25 Degrees Celsius ................................... 9
Figure 10 Screw Terminal Block Wiring ........................................... 10
Figure 11 Wiring Diagram for 2, 3, or 4 Wire RTD .................................. 11
Figure 12 Wiring Diagram for Millivolt Measurements ............................... 12
Figure 13 Example I/O Configuration Chart ....................................... 13
Figure 14 Troubleshooting Matrix ............................................... 15
Figure 15 Factory Configuration Jumper Settings ................................... 19

viii CTI 2552 Installation and Operation Guide

CTI 2552 Installation and Operation Guide ix
NOTE:
Notes alert the user to special features or procedures.
CAUTION:
Cautions alert the user to procedures which could damage equipment.
WARNING:
Warnings alert the user to procedures which could damage equipment and endanger the user.
USAGE CONVENTIONS

xCTI 2552 Installation and Operation Guide