Instruction Manual

ManualsBrandsRockwell Automation ManualsEquipment1771-IXHR INSTL INSTR HI RES TC/MV INPUT

Publication 1771-5.66 – October 1998

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(Catalog Number 1771-IXHR Series C)

Use this document as a guide when installing the 1771-IXHR/C High

Resolution Thermocouple/mV input module.

To See page

Prevent Electrostatic Discharge Below

Understand Compliance to European Union Directives 2

Understand Product Compatibility 2

Calculate Power Requirements 3

Determine Module Placement 3

Key the Backplane Connector 3

Install the Module and Field Wiring Arm 4

Connect Wiring to the Field Wiring Arm 5

Ground the Chassis and Module 6

Configure the Module 7

For this reference information See page

Status Indicators 9

Troubleshooting 9

Specifications 11

The High Resolution Thermocouple/Millivolt input module is

sensitive to electrostatic discharge.

ATTENTION: Electrostatic discharge can damage

integrated circuits or semiconductors if you touch

backplane connector pins. Follow these guidelines

when you handle the module:

• Touch a grounded object to discharge static potential

• Wear an approved wrist-strap grounding device

• Do not touch the backplane connector or

connector pins

• Do not touch circuit components inside the module

• If available, use a static-safe work station

• When not in use, keep the module in its

static-shield bag

This icon is used when

additional information is

available in the High Resolution

Thermocouple/Millivolt Input

Module User Manual,

publication 1771-6.5.131.

Installation Instructions

Contents

Prevent Electrostatic

Discharge

Summary of content (12 pages)

PAGE 1
Installation Instructions (Catalog Number 1771-IXHR Series C) Contents This icon is used when additional information is available in the High Resolution Thermocouple/Millivolt Input Module User Manual, publication 1771-6.5.131. Use this document as a guide when installing the 1771-IXHR/C High Resolution Thermocouple/mV input module.
PAGE 2
High Resolution Thermocouple/Millivolt Input Module Understand Compliance to European Union Directives This product has the CE mark and is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.
PAGE 3
High Resolution Thermocouple/Millivolt Input Module Calculate Power Requirements 3 The module receives its power through the 1771 I/O power supply. The maximum current drawn by the module is 850mA (4.25 Watts). Add this current to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or backplane power supply.
PAGE 4
High Resolution Thermocouple/Millivolt Input Module ! Install the Module and Field Wiring Arm ! ATTENTION: The High Resolution Thermocouple/Millivolt Input Module uses the same keying slots as the 1771–IXE Thermocouple/Millivolt Input Module. If you are replacing a 1771–IXE with a 1771–IXHR, the ladder program must be modified to accept the new block transfer format. ATTENTION: Remove power from the 1771 I/O chassis backplane before you install the module.
PAGE 5
High Resolution Thermocouple/Millivolt Input Module Connect Wiring to the Field Wiring Arm 5 Connect your I/O devices to the field wiring arm (cat. no. 1771-WI) shipped with the module. ATTENTION: Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing an I/O module. ! • Failure to remove power from the backplane or wiring arm could cause module damage, degradation of performance, or injury.
PAGE 6
High Resolution Thermocouple/Millivolt Input Module Ground the Chassis and Module Use the following diagrams to ground your I/O chassis and input module. Follow these steps to prepare the cable: 1 Chassis Ground When you connect grounding conductors to the I/O chassis grounding stud, place a star washer under the first lug, then place a nut with captive lock washer on top of each ground lug. Remove a length of cable jacket from the Belden 8761 cable (mV) or shielded thermocouple wire.
PAGE 7
High Resolution Thermocouple/Millivolt Input Module Configure the Module Dec. Bits 15 Octal Bits 17 Word 1 0.1s 0 0.5s 0 0.6s 0 0.7s 0 14 16 0 0 0 0 Use the configuration information below to configure your module to your specifications.For detailed configuration information, see chapter 5 of your High Resolution Thermocouple/mV Input Module User Manual (publication 1771-6.5.131). 13 12 11 10 09 15 14 13 12 11 Sample time 0 0 1 0 0 0 0 1 0 1 0 1 1 0 0 0 1 1 1 0 0.8s 0 1 0 0 0 0 0.
PAGE 8
High Resolution Thermocouple/Millivolt Input Module Use the following table to read data from your input module. Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 EE DCB HCJ LCJ RTS OR PU Word 1 Not used Dynamic clamp bit - (DCB) Prevents rapid changes in data due to data corruption over the opto–isolation barrier as a result of ESD, radiation bursts, etc.
PAGE 9
High Resolution Thermocouple/Millivolt Input Module Interpret Status Indicators 9 The front panel of the input module contains a green RUN indicator and a red FAULT indicator. At power-up, the module momentarily turns on both indicators as a lamp test, then checks for: • correct RAM operation • EPROM operation • EEPROM operation • a valid write block transfer with configuration data TC/MV Module If there is no fault, the red indicator turns off.
PAGE 10
High Resolution Thermocouple/Millivolt Input Module CSA Hazardous Location Approval Approbation d’utilisation dans des emplacements dangereux par la CSA CSA certifies products for general use as well as for use in hazardous locations. Actual CSA certification is indicated by the product label as shown below, and not by statements in any user documentation. La CSA certifie les produits d’utilisation générale aussi bien que ceux qui s’utilisent dans des emplacements dangereux.
PAGE 11
High Resolution Thermocouple/Millivolt Input Module Specifications Description Value Number of Inputs 8, all of the same type or 4 each of 2 different types Module Location 1771 I/O chassis – 1 module slot Type of Input (Selectable) Type B, Pt–30% Rh/Pt–6% Rh Type E, chromel/constantan Type J, iron/constantan Type K, chromel/alumel Type R, Pt/Pt–13% Rh Type S, Pt/Pt–10% Rh Type T, copper/constantan Millivolt Thermocouple Linearization IPTS–68 standard, NBS MN–125 Cold Junction Compensation Rang
PAGE 12
High Resolution Thermocouple/Millivolt Input Module Description Value Conductors Wiring Category Use Belden 8761 shielded twisted pair for mV Use thermocouple manufacturer recommended shielded thermocouple wire for all thermocouple inputs. 2 Field Wiring Arm Cat. No. 1771-WI Wiring Arm Screw Torque 7-9 inch-pounds Agency Certification (when product is marked) • • • • User Manual Publication 1771-6.5.