Allen-Bradley FLEX Ex 1797-IRT8 Installation Instructions Manual
  1. Manuals
  2. Brands
  3. Allen-Bradley Manuals
  4. I/O Systems
  5. FLEX Ex 1797-IRT8
  6. Installation instructions manual
Allen-Bradley FLEX Ex 1797-IRT8 Installation Instructions Manual

Allen-Bradley FLEX Ex 1797-IRT8 Installation Instructions Manual

Thermocouple/rtd input module
Hide thumbs
Table of Contents

Advertisement

Quick Links

FLEX Ex Thermocouple/RTD Input Module
Catalog Number 1797-IRT8
Contents
For Information About
Installation in Zone 22
Installation Instructions
See Page
2
3
5
5
6
8
14
15
16
16
16
17
18
19
23
Publication
1797-IN004G-EN-P - August 2017

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the FLEX Ex 1797-IRT8 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Allen-Bradley FLEX Ex 1797-IRT8

Summary of Contents for Allen-Bradley FLEX Ex 1797-IRT8

  • Page 1: Table Of Contents

    Installation Instructions FLEX Ex Thermocouple/RTD Input Module Catalog Number 1797-IRT8 Contents For Information About See Page Important User Information Module Installation Installation in Zone 1 Installation in Zone 22 European Communities (EC) Directive Compliance Inputs Indicators Output Map Fault Mode - Write Word 0 Add-on Filter Selections - Write Word 0 Reference Junction Selection - Write Word 0 RTD Offset Select - Write Word 2...

  • Page 2: Important User Information

    2 FLEX Ex Thermocouple/RTD Input Module Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-wired electromechanical devices.

  • Page 3: Module Installation

    FLEX Ex Thermocouple/RTD Input Module 3 Module Installation Label Here or Under Here 40231 Component Identification Keyswitch Alignment Bar Terminal Base Unit Alignment Groove Flexbus Connector Latching Mechanism Module Cap Plug This module must be used with a 1797-TB3 or 1797-TB3S intrinsically safe terminal base unit.
  • Page 4 4 FLEX Ex Thermocouple/RTD Input Module This equipment is considered Group 1, Class A industrial ATTENTION equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance. This equipment is supplied as open-type equipment.

  • Page 5: Installation In Zone 1

    FLEX Ex Thermocouple/RTD Input Module 5 7. Remove cap plug (8) and attach another intrinsically safe terminal base unit to the right of this terminal base unit if required. Installation in Zone 1 This module must not be exposed to the environment. Provide a suitable metal enclosure.

  • Page 6: European Communities (Ec) Directive Compliance

    6 FLEX Ex Thermocouple/RTD Input Module Removal and Insertion Under Power These modules are designed so you can remove and insert WARNING them under power. However, take special care when removing or inserting modules in an active process. I/O attached to any module being removed or inserted can change states due to its input or output signal changing conditions.
  • Page 7 FLEX Ex Thermocouple/RTD Input Module 7 European Hazardous Location Approval The following applies to products marked II (1)2 G and II (1) D • Are Equipment Group II, Equipment Category (1) 2, and comply with the Essential Health and Safety Requirements relating to the design and construction of such equipment given in Annex II to Directive 2014/34/EU.

  • Page 8: Inputs

    8 FLEX Ex Thermocouple/RTD Input Module Special Conditions for Safe Use: The module may only be used with the terminal base type 1797-TB3/* or type 1797-TB3S/* (DMT 98 ATEX E012U) A warning label shall be installed in immediate proximity of these apparatus: ATTENTION! Avoid electrostatic charging.
  • Page 9 FLEX Ex Thermocouple/RTD Input Module 9 Wire to a 1797-TB3 or 1797-TB3S Terminal Base Unit Connect wiring to the terminal base as shown below. Row A Ch 0 Ch 3 Ch 1 Ch 2 Row B Ch 7 Ch 6 Ch 4 Ch 5 35 36...
  • Page 10 10 FLEX Ex Thermocouple/RTD Input Module d. Connect the tail of the CJC as follows: • when using inputs 0 to 3 (row A) only for thermocouple inputs: connect the tail of CJC1 to terminal 5 and CJC2 to terminal 12 on row •...
  • Page 11 FLEX Ex Thermocouple/RTD Input Module 11 Connect the Following Type of Input Shield RTD - 2-wire 2-wire RTD RTD - 3-wire RTD - 4-wire Thermocouple 3-wire RTD Millivolt 1Terminals 16, 33, 40…45 are chassis ground. RTD or RTD Source High Signal Low Signal Signal 4-wire RTD...
  • Page 12 12 FLEX Ex Thermocouple/RTD Input Module Example of 2-, 3-, and 4-wire RTD and Thermocouple Wiring to a 1797-TB3 Terminal Base Unit Thermocouple Channel 4 2-Wire RTD Channel 1 3-Wire RTD Channel 2 4-Wire RTD Channel 3 9 10 11 12 13 14 15 0 to 15 16 to 33 34 to 51...
  • Page 13 FLEX Ex Thermocouple/RTD Input Module 13 Example of Millivolt Wiring to a 1797-TB3 Terminal Base Unit Millivolt Source Millivolt Source Millivolt Source Millivolt Source 9 10 11 12 13 14 15 0 to 15 16 to 33 34 to 51 Bus Bar Ground or Shield Terminating...

  • Page 14: Indicators

    14 FLEX Ex Thermocouple/RTD Input Module Indicators 1797-IRT8 A = Status Indicators - Flashing red - channel fault - Channel 0 indicator will turn red while power-up check is running. (Channel 0 solid red - module did not pass power-up test.) B = Insertable labels for writing individual I/O designations C = Power Indicator - green - indicates power applied to module Input Map...

  • Page 15: Output Map

    FLEX Ex Thermocouple/RTD Input Module 15 Output Map   Word Write Data Format Reference Filter Cutoff Mode Mode Junction 4…7 0…3 TC/RTD Sensor Sensor Type TC/RTD Sensor Sensor Type Ch 4…7 Mode Ch 4…7 Ch 0…3 Mode Ch 0…3 ch 4…7 Ch 0…3 RTD Offset...

  • Page 16: Fault Mode - Write Word 0

    16 FLEX Ex Thermocouple/RTD Input Module Fault Mode - Write Word 0 Fault enable for channels 0…3 Fault enable for channels 4…7 0 = disabled 1 = enable wire-off detection Add-on Filter Selections - Write Word 0 Definition Hardware filtering only (default filtering) 40 Hz (25 ms) 10 Hz (100 ms) 4 Hz (250 ms)

  • Page 17: Rtd Offset Select - Write Word 2

    FLEX Ex Thermocouple/RTD Input Module 17 Sensor Mode Select - Write Word 1 05 04 Sensor mode for channels 0…3 13 12 Sensor mode for channels 4…7 Thermocouple Mode External compensation - uses cold junction sensor Internal compensation - Uses the value selected for reference junction No compensation (Data is referenced to 0 °C) Differential measurement between 2 channels...

  • Page 18: Sensor Type Select - Write Word 1

    18 FLEX Ex Thermocouple/RTD Input Module Sensor Type Select - Write Word 1 RTD Type 00 Sensor type for channels 0…3 08 Sensor type for channels 4…7 Resistance (default) 100 Ω Pt α = 0.00385 Euro (-200…+870 °C) 200 Ω Pt α_ = 0.00385 Euro (-200…+380 °C) 100 Ω...

  • Page 19: Specifications

    FLEX Ex Thermocouple/RTD Input Module 19 Repair This module is not field-repairable. Any attempt to open this module will void the warranty and IS certification. If repair is necessary, return this module to the factory. Specifications Specifications - 1797-IRT8 Thermocouple/RTD Module Number of Inputs 8 channels IS input type...

  • Page 20: Publication 1797-In004G-En-P - August

    20 FLEX Ex Thermocouple/RTD Input Module Data Organization Overrange Alarm Individually for each channel Lead Breakage Alarm Individually for each channel Fault State Individually for each channel (includes overrange, lead breakage and short circuit) Sensor Mode RTD 2, Common to groups of 4 channels (ch 0…3, ch 4…7) 3, or 4-wire, TC Sensor Type (such as Common to groups of 4 channels (ch 0…3, ch 4…7)
  • Page 21 FLEX Ex Thermocouple/RTD Input Module 21 Environmental Conditions Operational Temperature -20…+70°C (-4…+158°F) Storage Temperature -40…+85°C (-40…+185°F) Relative Humidity 5…95% noncondensing Shock Operating Tested to 15 g peak acceleration, 11(+1) ms pulse width Nonoperating Tested to 15 g peak acceleration, 11(+1) ms pulse width Vibration Tested 2 g @ 10…500 Hz per IEC68-2-6 Agency Certification...
  • Page 22 22 FLEX Ex Thermocouple/RTD Input Module UL, C-UL Certification For detailed certification information, refer to the FLEX Ex IMPORTANT System Certification Reference Manual, publication 1797-RM001. If these products have the UL/C-UL mark, they have been designed, evaluated, tested, and certified to meet the following standards: •...

  • Page 23: Entity Parameters

    FLEX Ex Thermocouple/RTD Input Module 23 Entity Parameters CE/CENELEC I/O Entity Parameters Input circuits (+ to -) for ch0 to ch7 (terminals: 0 to 3, 4 to 7; 8 to 11, 12 to 15, 17 to 20, 21 to 24, 25 to 28, 29 to 32) Protection Group Allowed...

  • Page 24: Entity Parameters

    24 FLEX Ex Thermocouple/RTD Input Module UL, C-UL I/O Entity Parameters Table 1 Wiring Channel Terminals Groups Method (mA) (mA) (μF) (mH) 1 and 2 Any one 0(+), 1(H), 37.0 A, B 20.0 channel 2(L), 3(-) C, E 14.7 80.0 (for example, D, F, G...
  • Page 25 FLEX Ex Thermocouple/RTD Input Module 25  Simple apparatus is defined as a device which neither generates nor stores more than 1.2V, 0.1 A, 20 mJ, or 25 mW.  Wiring methods must be in accordance with the National Electric Code, ANSI/NFPA 70, Article 504 and 505 or the Canadian Electric Code CSA C22.1, Part 1, Appendix F.
  • Page 26 26 FLEX Ex Thermocouple/RTD Input Module FLEX Ex Allen-Bradley Key Position for 1797- IRT8 8 Point RTD/Thermocouple mV Input Module Temperature Input Terminal Base I/O Module Insertion Indicators Male Bus Connection Female Bus Connection Terminal Base Key Field Wiring Terminal...
  • Page 27 FLEX Ex Thermocouple/RTD Input Module 27 Hazardous (Classified) Location Hazardous (Classified) Location Class I, Zones 0, 1, & 2 Groups IIC, IIB, IIA Class I, Zones 1 & 2 Groups IIC, IIB, IIA Class I, Div. 1 & 2 Groups A, B, C, D Class I, Div.

  • Page 28: Entity Parameters

    28 FLEX Ex Thermocouple/RTD Input Module For detailed certification information, refer to the FLEX Ex IMPORTANT System Certification Reference Manual, publication 1797-RM001. FM I/O Entity Parameters If this product has the FM mark, it has been designed, evaluated, tested and certified to meet the following standards: •...
  • Page 29 FLEX Ex Thermocouple/RTD Input Module 29 Table 1 Wiring Channel Terminals Groups Method (mA) (mA) (μF) (mH) 1 and 2 Any one 0(+), 1(H), 37.0 A, B 20.0 channel, 2(L), 3(-) C, E 60.0 example, D, F, G 24.0 160.0 37, 38, 39 A, B 1000.0...
  • Page 30 Terminals 36 and 49 shall not be connected.  Substitution of components may impair intrinsic safety. WARNING La substitution de composant peut compromettre la AVERTISSEMENT securite intrinseque. Allen-Bradley 1797- IRT8 FLEX Ex Temperature Key Position for 8 Point RTD/Thermocouple mV Input Module Input I/O Module Terminal Base...
  • Page 31 FLEX Ex Thermocouple/RTD Input Module 31 A terminal base may or may not have an I/O module ATTENTION installed. Hazardous (Classified) Location Hazardous (Classified) Location Class I, Zone 0 Group IIC Class I, Zone 1 Group IIC Class I, Div. 1 Groups A, B, C, D Class I, Div.
  • Page 32 32 FLEX Ex Thermocouple/RTD Input Module WARNING Avoid electrostatic charging. ADVERTÊNCIA! PREVENIR CONTRA OACÚMULO DE CARGA ELETROSTÁTICA. FLEX Ex is a trademark of Rockwell Automation, Inc. Publication 1797-IN004G-EN-P - August 2017...
  • Page 33 FLEX Ex Thermocouple/RTD Input Module 33 Notes: Publication 1797-IN004G-EN-P - August 2017...
  • Page 34 34 FLEX Ex Thermocouple/RTD Input Module Notes: Publication 1797-IN004G-EN-P - August 2017...
  • Page 35 FLEX Ex Thermocouple/RTD Input Module 35 Notes: Publication 1797-IN004G-EN-P - August 2017...
  • Page 36 Outside United States Please contact your local Rockwell Automation representative for return procedure. Allen-Bradley, Rockwell Automation, ControlLogix, RSLinx, TechConnect, and FLEX I/O are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.

Table of Contents