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Installation Instructions

DeviceNet Base RTD and
Thermocouple CompactBlock LDX I/O

Catalog Numbers 1790D-4R0, 1790D-4T0, 1790D-T4R0,
1790D-T4T0

Table of Contents

Topic

Page

Important User Information

Environment and Enclosure

Prevent Electrostatic Discharge

North American Hazardous Location Approval

EDS File Requirements

Install the CompactBlock LDX I/O

Set the Node Address on the Base Block

Mount the Base Module

Wire the Terminal Block

Connect Field Wiring

Connect the DeviceNet Cable

I/O Memory Mapping

Interpret the Status Indicators

Specifications

Содержание Allen-Bradley 1790D-4R0

Страница 1: ...ation 2 Environment and Enclosure 3 Prevent Electrostatic Discharge 3 North American Hazardous Location Approval 4 EDS File Requirements 4 Install the CompactBlock LDX I O 5 Set the Node Address on the Base Block 5 Mount the Base Module 6 Wire the Terminal Block 8 Connect Field Wiring 9 Connect the DeviceNet Cable 13 I O Memory Mapping 14 Interpret the Status Indicators 15 Specifications 16 ...

Страница 2: ...articular installation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Rockwell Automation Inc with respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automatio...

Страница 3: ...to prevent or minimize the spread of flame complying with a flame spread rating of 5VA V2 V1 V0 or equivalent if non metallic The interior of the enclosure must be accessible only by the use of a tool Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications In addition...

Страница 4: ...ments de Classe I Division 2 Groupes A B C D dangereux et non dangereux Chaque produit est livré avec des marquages sur sa plaque d identification qui indiquent le code de température pour les environnements dangereux Lorsque plusieurs produits sont combinés dans un système le code de température le plus défavorable code de température le plus faible peut être utilisé pour déterminer le code de te...

Страница 5: ...ternal program set for node address 63 To reset the node address adjust the switches on the front of the block The two switches are most significant digit MSD and least significant digit LSD The switches can be set between 00 and 63 The base block reads the rotary switches at power up only Switch settings between 64 and 99 cause the block to use the last valid node address stored internally Node A...

Страница 6: ...n cover to the left 3 Place a center punch nail or similar device through the mounting holes in the block and make two marks on the panel at the lower left and upper right corners of the module IMPORTANT The RTD and thermocouple base blocks do not support any expansion blocks WARNING When used in a Class I Division 2 hazardous location this equipment must be mounted in a suitable enclosure with th...

Страница 7: ...nd place a screw through each of the two mounting holes 6 Tighten the screws until the block is firmly in place Mount on DIN Rail For DIN rail mounting use these steps 1 Hook the top slot of the base block over the DIN rail 2 Pull down on the locking lever while pressing the base block against the rail 3 Push up on the locking lever to secure the base block to the rail when the base block is flush...

Страница 8: ... to Field Power 24V DC Wire pin 2 to Field Power GND 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 24V 24V NC NC NC CH0_A CH0_B CH1_A CH1_B NC NC CH2_A CH2_B CH3_A CH3_B NC NC NC GND GND NC COM COM COM COM COM COM GND NC NC COM COM COM COM COM COM 24V 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23...

Страница 9: ...r drives under normal conditions the drain wire and shield junction should be connected to earth ground via a panel or DIN rail mounting screw at the block end keep shield connection to ground as short as possible to ensure optimum accuracy limit overall cable impedance by keeping the cable as short as possible Locate the I O system as close to your field devices as your application will permit RT...

Страница 10: ...sistance per foot RTD Wiring Configurations Three configurations of RTDs can be connected to the blocks 2 wire RTD which is composed of an RTD EXC excitation lead wire and a RTN return wire 3 wire RTD which is composed of a Sense and 2 RTD lead wires RTD EXC and RTN 4 wire RTD which is composed of a Sense and 2 RTD lead wires RTD EXC and RTN The second sense wire of a 4 wire RTD is left open IMPOR...

Страница 11: ...s the same type of cable as that for the RTD Potentiometers can be connected to the module as a 2 wire or 3 wire connection as shown in the following figures CH0_A CH0_B COM Add Jumper Cable Shield to Ground C X E D T R C X E D T R n r u t e R n r u t e R CH0_A CH0_B COM Cable Shield to Ground RTD EXC RTD EXC Sense Sense Return Return CH0_A CH0_B COM Cable Shield to Ground RTD EXC RTD EXC Sense Se...

Страница 12: ...0_A CH0_B COM CH0_A CH0_B COM Add Jumper Cable Shield to Ground RTD EXC Return Potentiometer Add Jumper Cable Shield to Ground RTD EXC Return Potentiometer CH0_A CH0_B COM CH0_A CH0_B COM Cable Shield to Ground RTD EXC Return Potentiomete Cable Shield to Ground RTD EXC Return Potentiometer Sense Run Return and sense wires from the module to potentiometer terminal and tie terminal to one point Run ...

Страница 13: ...g drop line to one of the DeviceNet connectors as shown in the figure noting that a color coded wiring diagram is printed next to the connector on the left side of the base block 1 Attach the connector to the base block once you have properly wired the drop line to the connector 2 Use the locking screws on the connector to fasten it to the base block if applicable WARNING If you connect or disconn...

Страница 14: ...hannel 3 input data Read Word 4 Bits 00 03 Underrange for individual channels Bit 00 corresponds to input channel 0 bit 01 corresponds to input channel 1 and so on When set 1 the input signal is below the input channel s minimum range Bits 04 07 Not used Set to 0 Bits 08 11 Overrange for individual channels Bit 08 corresponds to input channel 0 bit 09 corresponds to input channel 1 and so on When ...

Страница 15: ...Word 4 Bits 00 03 Underrange for individual channels Bit 00 corresponds to input channel 0 bit 01 corresponds to input channel 1 and so on When set 1 the input signal is below the input channel s minimum range Bits 04 07 Not used Set to 0 Bits 08 11 Overrange for individual channels Bit 08 corresponds to input channel 0 bit 09 corresponds to input channel 1 and so on When set 1 the input signal is...

Страница 16: ...r not powered I O Channel LED Status Indicators Status Description Flashing green red Power up Off Off line Red On line and no field power Red DeviceNet connection and no field power Flashing red Field power and open wire Green Field power and valid input Flashing red Input overrange Flashing red Input underrange Flashing red Recoverable fault 4 Channel Input RTD Base Module 1790D 4R0 1790D T4R0 A...

Страница 17: ... C 120 Nickel 80 260 C 800 2600 0 1 C 200 Nickel 60 250 C 600 2500 0 1 C 500 Nickel 60 250 C 600 2500 0 1 C Resolution 16 bits across 625 0 1 C bit or 0 1 F bit RTD Sensors 20 bit Sigma Delta modulation converter Data format 16 bit interger 2 s compliment Module scan time per channel 8 ms Notch filter 60 Hz Overall accuracy 0 2 Full scale 0 60 C Settable notch filter 10 Hz default 25 Hz 50 Hz 60 H...

Страница 18: ...ermocouple Sensors 20 bit Sigma Delta modulation converter Data format 16 bit Integer 2 s compliment Module scan time per channel 140 ms Notch filter 60 Hz Overall accuracy 0 2 Full scale 0 60 C Settable notch filter 10 Hz default 25 Hz 50 Hz 60 Hz 100 Hz 250 Hz 500 Hz Open wire detection Out of range open wiring Cold Junction Compensation range 0 70 C General Specifications Attribute Value Device...

Страница 19: ...ate selection Dimensions HxWxD approx 52 x 104 x 42 mm 2 03 x 4 07 x 1 64 in Weight approx 0 1 kg 0 3 lb Enclosure type rating None open style Isolation voltage I O to logic photocoupler isolation Type tested 1250 V AC for 60 seconds between field power and DeviceNet I O to logic DeviceNet to logic non isolated Field power non isolated Mounting DIN rail or screw Wiring Category 1 2 Wiring 37 pin D...

Страница 20: ... 90 non condensing Operating altitude 2000 m Vibration IEC 60068 2 6 Test Fc Operating 2 g 10 500 Hz Shock operating IEC 60068 2 27 Test Ea Unpackaged Shock 10 g Shock non operating IEC 60068 2 27 Test Ea Unpackaged Shock 30 g Emissions CISPR 11 Group 1 Class A ESD immunity IEC 61000 4 2 8 kV air discharges Radiated RF immunity IEC 61000 4 3 10V m with 1 kHz sine wave 80 AM from 80 1000 MHz 10V m ...

Страница 21: ...89 336 EEC EMC Directive compliant with EN 50082 2 Industrial Immunity EN 61326 1 Meas Control Lab Industrial Requirements EN 61000 6 2 Industrial Immunity EN 61000 6 4 Industrial Emissions RCM Australian Radiocommunications Act compliant with AS NZS CISPR11 Industrial Emissions ODVA ODVA conformance tested to DeviceNet specifications 1 See the Product Certification link at http www rockwellautoma...

Страница 22: ...22 DeviceNet Base RTD and Thermocouple CompactBlock LDX I O Publication 1790 IN011C EN P January 2015 Notes ...

Страница 23: ...DeviceNet Base RTD and Thermocouple CompactBlock LDX I O 23 Publication 1790 IN011C EN P January 2015 Notes ...

Страница 24: ...y However if your product is not functioning and needs to be returned follow these procedures Documentation Feedback Your comments will help us serve your documentation needs better If you have any suggestions on how to improve this document complete this form publication RA DU002 available at http www rockwellautomation com literature United States or Canada 1 440 646 3434 Outside United States o...

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