Rockwell Automation Allen-Bradley 1790D-4R0 Installation Instructions Manual

Allen-Bradley 1790D-4R0
Brand
Rockwell Automation
Model
Allen-Bradley 1790D-4R0
Type
Installation Instructions Manual

This manual is also suitable for

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 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
2 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
Publication 1790-IN011C-EN-P - January 2015
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.rockwellautomation.com/literature/
) describes some important differences between
solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also
because of the wide variety of uses for solid-state equipment, all persons responsible for applying this
equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the
many variables and requirements associated with any particular 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
Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING: Identifies information about practices or circumstances that can cause an
explosion in a hazardous environment, which may lead to personal injury or death,
property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to
personal injury or death, property damage, or economic loss. Attentions help you identify
a hazard, avoid a hazard and recognize the consequences.
SHOCK HAZARD: Labels may be on or inside the equipment (for example, drive or
motor) to alert people that dangerous voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment (for example, drive or motor)
to alert people that surfaces may reach dangerous temperatures.
IMPORTANT Identifies information that is critical for successful application and understanding of
the product.
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 3
Publication 1790-IN011C-EN-P - January 2015
Environment and Enclosure
Prevent Electrostatic Discharge
ATTENTION: This equipment is intended for use in a Pollution Degree 2
industrial environment, in overvoltage Category II applications (as defined in
IEC publication 60664-1), at altitudes up to 2000 meters (6562 ft)
without derating.
This equipment is considered Group 1, Class A industrial 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. It must be mounted within
an enclosure that is suitably designed for those specific environmental
conditions that will be present and appropriately designed to prevent personal
injury resulting from accessibility to live parts. The enclosure must have
suitable flame-retardant properties 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 to this publication, see:
• Industrial Automation Wiring and Grounding Guidelines, for additional
installation requirements, Allen-Bradley publication 1770-4.1
.
• NEMA Standards publication 250 and IEC publication 60529, as
applicable, for explanations of the degrees of protection provided by
different types of enclosure.
ATTENTION: This equipment is sensitive to electrostatic discharge, which can
cause internal damage and affect normal operation. Follow these guidelines
when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.
4 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
Publication 1790-IN011C-EN-P - January 2015
North American Hazardous Location Approval
EDS File Requirements
Current functionality of CompactBlock LDX I/O blocks require current modular EDS
file for RSNetWorx for DeviceNet™ version 3.0 or later software.
These files are easy to install and are available online at:
www.ab.com/networks/eds/
EDS files for blocks with matching catalog numbers (for both D-Shell and terminal block
versions) are the same. Thus, on the website and in RSNetWorx for DeviceNet, there is
only one EDS file for both versions of the blocks. For example, if you want the EDS file for
1790D-T8BV8B, use the EDS file labeled 1790D-8BV8B.
The following information applies when
operating this equipment in hazardous
locations:
Informations sur l’utilisation de cet
équipement en environnements dangereux:
Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for
use in Class I Division 2 Groups A, B, C, D, Hazardous
Locations and nonhazardous locations only. Each product is
supplied with markings on the rating nameplate indicating
the hazardous location temperature code. When combining
products within a system, the most adverse temperature
code (lowest "T" number) may be used to help determine the
overall temperature code of the system. Combinations of
equipment in your system are subject to investigation by the
local Authority Having Jurisdiction at the time of
installation.
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne
conviennent qu'à une utilisation en environnements 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
température global du système. Les combinaisons
d'équipements dans le système sont sujettes à inspection
par les autorités locales qualifiées au moment de
l'installation.
EXPLOSION HAZARD
• Do not disconnect equipment unless
power has been removed or the area is
known to be nonhazardous.
• Do not disconnect connections to this
equipment unless power has been
removed or the area is known to be
nonhazardous. Secure any external
connections that mate to this equipment
by using screws, sliding latches, threaded
connectors, or other means provided with
this product.
• Substitution of components may impair
suitability for Class I, Division 2.
• If this product contains batteries, they
must only be changed in an area known to
be nonhazardous.
RISQUE D’EXPLOSION
• Couper le courant ou s'assurer que
l'environnement est classé non dangereux
avant de débrancher l'équipement.
• Couper le courant ou s'assurer que
l'environnement est classé non dangereux
avant de débrancher les connecteurs.
Fixer tous les connecteurs externes reliés
à cet équipement à l'aide de vis, loquets
coulissants, connecteurs filetés ou autres
moyens fournis avec ce produit.
• La substitution de composants peut rendre
cet équipement inadapté à une utilisation
en environnement de Classe I, Division 2.
• S'assurer que l'environnement est classé
non dangereux avant de changer les piles.
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 5
Publication 1790-IN011C-EN-P - January 2015
Install the CompactBlock LDX I/O
Follow these steps to install the block:
• set the node address on the base block.
• mount the base block.
• wire the terminal blocks.
•connect field wiring.
• connect the DeviceNet cable.
These steps are explained in detail in the following procedures.
Set the Node Address on the Base Block
Each base block comes with its internal 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 Address Example
The node address may also be set through RSNetWorx for DeviceNet or a similar
configuration tool. When software configuration is used for the node address, the switches
must be set between 64 and 99.
Example: Node
Address is set at 11
6 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
Publication 1790-IN011C-EN-P - January 2015
Mount the Base Module
You can mount the base block to a panel or DIN rail. We recommend that you ground the
panel or DIN rail before mounting the block.
Dimensions
Mount on a Panel
For panel mounting, use these steps.
1. Place the block against the panel where you want it mounted.
2. Gently pull and position the expansion 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 the proper wiring
method that complies with the governing electrical codes.
CompactBlock LDX
1790-16BVOX
DC INPUTS
EXPANSION UNIT
16 INPUTS-DCPOWER
0
7
DC INPUTS
8
15
95 mm
(3.74 in.)
41 mm
(1.6 in.)
Expansion
Cable
Cover
44252
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 7
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4. Remove the block and drill two holes in the panel to accommodate each of the
mounting screws.
5. Replace the block on the panel and 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 against the rail.
Locking Lever
8 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
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Wire the Terminal Block
The following figures show how to wire the terminal blocks.
1790D-4R0 RTD Input Module D-Shell Wiring
• Wire pins 17, 18, 19 to Field Power (+) 24V DC
• Wire pins 35, 36, 37 to Field Power (-) GND
1790D-4T0 Thermocouple Module D-Shell Wiring
• Wire pins 17, 18, 19 to Field Power (+) 24V DC
• Wire pins 35, 36, 37 to Field Power (-) GND
1790D-T4RO RTD Input Module Terminal Block Wiring
• Wire pin 1 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
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
NC
NC
NC
NC
NC
NC
GND
NC
NC
NC
NC
NC
NC NC NC
+24V
20
18
16
14
12
10
8
6
4
2
19
17
15
13
11
9
7
5
3
1
NC
NC
CH3_B
COM
CH0_B
NC
COM
CH2_B
CH1_B
GND
NC
COM
CH2_A
CH1_A
+24V
NC
NC
CH3_A
COM
CH0_A
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 9
Publication 1790-IN011C-EN-P - January 2015
1790D-T4T0 Thermocouple Input Module Terminal Block Wiring
• Wire pin 1 to Field Power (+) 24V DC
• Wire pin 2 to Field Power (-) GND
Connect Field Wiring
System Wiring Guidelines
Follow these guidelines when wiring your system:
• use shielded, twisted pair wire to ensure proper operation and high immunity to
electrical noise
• to limit noise, locate RTD and resistance device signal wires as far away as possible
from power lines, load lines and other sources of electrical noise, such as
hard-contact switches, relays and AC motor 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.
RTD Wiring Guidelines
Since the operating principle of the RTD module is based on the measurement of
resistance, give special consideration when selecting the input cable. For 2-wire or 3-wire
configurations, select a cable that has consistent impedance throughout its entire length.
20
18
16
14
12
10
8
6
4
2
19
17
15
13
11
9
7
5
3
1
NC
NC
CH3_B
NC
CH0_B
NC
NC
CH2_B
CH1_B
GND
NC
NC
CH2_A
CH1_A
+24V
NC
NC
CH3_A
NC
CH0_A
10 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
Publication 1790-IN011C-EN-P - January 2015
When using a 3-wire configuration, the block compensates for resistance error due to lead
wire length. For example, in a 3-wire configuration, the block reads the resistance due to
the length of the wires and assumes that the resistance of the other wire is equal. If the
resistance of the individual lead wires are much different, an error may exist. The closer the
resistance values are to each other, the greater the amount of error is eliminated.
To ensure that the lead values match as closely as possible:
• keep lead resistance as small as possible and less than 25
• use quality cable that has a small tolerance impedance rating
• use a heavy-gauge lead wire which has less resistance 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.
IMPORTANT
The RTD block requires three wires to compensate for lead resistance error.
We recommend that you do not use 2-wire RTDs if long cable runs are
required, as it reduces the accuracy of the system.
However, if a 2-wire configuration is required, reduce the effect of the lead
wire resistance by using a lower-gauge wire for the cable (for example, use
AWG #16 instead of AWG #24). The block’s terminal strip accepts
AWG #14 gauge wire.
IMPORTANT
To ensure temperature or resistance value accuracy, the resistance
difference of the cable lead wires must be equal to or less than 0.01 .
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 11
Publication 1790-IN011C-EN-P - January 2015
2-Wire RTD Configuration
3-Wire RTD Configuration
4-Wire RTD Configuration
Wire Resistance Devices (Potentiometers)
Potentiometer wiring requires 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)
CXE DTRCXE DTR
nruteRnruteR
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
Sense
Return
Return
Leave this sensor wire open
12 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
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2-Wire Potentiometer Interconnection
TIP
The potentiometer wiper arm can be connected to either the
EXC or return terminal, depending on whether you want
increasing or decreasing resistance.
CH0_A
CH0_B
COM
CH0_A
CH0_B
COM
Add Jumper
Cable Shield (to Ground)
RTD EXC
Return
Potentiometer
dd 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 Return and sense wires from
the module to potentiometer terminal
and tie terminal to one point
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 13
Publication 1790-IN011C-EN-P - January 2015
Connect the DeviceNet Cable
Follow these procedures when connecting the DeviceNet cable to the base block.
The required DeviceNet connector is not supplied with the block - you must purchase it
separately. There are three types of connectors that you can order directly from Rockwell
Automation or your local distributor:
• 1799-DNETCON – 5-position open style connector
• 1799-DNETSCON – 5-position open style connector with locking screws
• 1799-DNC5MMS – 5-position open style to 5-pin micro male connector with
locking screws
1. Connect the DeviceNet wiring (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 disconnect the DeviceNet cable with power
applied to this module or any device on the network, an electrical arc can
occur. This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Wiring Diagram for
1799-DNETCON
Connector
Wiring Diagram for
1799-DNC5MMS
Connector
V+ Red
V- Black
Drain/Shield
Can_H White
Can_L Blue
V+ Red
Can_H White
Drain/Shield
Can_L Blue
V- Black
44164
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Publication 1790-IN011C-EN-P - January 2015
I/O Memory Mapping
1790D-4R0, 1790D-T4R0 Input Data File
Word Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 RTD Input Data Channel 0
1 RTD Input Data Channel 1
2 RTD Input Data Channel 2
3 RTD Input Data Channel 3
4 Not used S11 S10 S9 S8 Not used S3 S2 S1 S0
Word/Bit Descriptions – 1790D-4R0, 1790D-T4R0 RTD
Word Decimal Bit Description
Read Word 0 Bits 00…15 Channel 0 input data
Read Word 1 Bits 00…15 Channel 1 input data
Read Word 2 Bits 00…15 Channel 2 input data
Read Word 3 Bits 00…15 Channel 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 set (1) the input signal is above the input channel’s
maximum range, or open RTD is detected.
Bits 12…15 Not used: Set to 0
1790D-4T0, 1790D-T4T0 Input Data File
Word Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 Thermocouple Input Data Channel 0
1 Thermocouple Input Data Channel 1
2 Thermocouple Input Data Channel 2
3 Thermocouple Input Data Channel 3
4 Not used S11 S10 S9 S8 Not used S3 S2 S1 S0
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 15
Publication 1790-IN011C-EN-P - January 2015
Interpret the Status Indicators
The 1790D I/O block has these status indicators:
•Block status
•Network status
•I/O status
Word/Bit Descriptions – 1790D-4T0, 1790D-T4T0 Thermocouple
Word Decimal Bit Description
Read Word 0 Bits 00…15 Channel 0 input data
Read Word 1 Bits 00…15 Channel 1 input data
Read Word 2 Bits 00…15 Channel 2 input data
Read Word 3 Bits 00…15 Channel 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 set (1) the input signal is above the input channel’s
maximum range, or open RTD is detected.
Bits 12…15 Not used: Set to 0
Status Indicators
Indicator Status Description
Module Solid red Unrecoverable fault in base unit.
Flashing red Recoverable fault
Solid green Normal operation – OK
Flashing green Standby
Off No power.
16 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
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Specifications
Network Solid red Unrecoverable communication fault
Flashing red Recoverable communication fault
Solid green Communication path complete – OK
Flashing green Communication path incomplete
Off Device not on line or 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
Attribute Value
Number of inputs 4 channel, RTD/Resistance input
Input range 1…625
Status Indicators
Indicator Status Description
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 17
Publication 1790-IN011C-EN-P - January 2015
Sensors supported
Sensor Type Degree Counts Resolution
Resistance 100 m 1…625 10…6250 100 m
Resistance 10 m 1…327 100…3270 10 m
100 Pt/ =0.00385 -200…+850 °C -2000…8500 0.1 °C
200 Pt/ =0.00385 -200…+850 °C -2000…8500 0.1 °C
500 Pt/ =0.00385 -200…+650 °C -2000…6500 0.1 °C
100 Pt/ =0.003916 -200…+640 °C -2000…6400 0.1 °C
200 Pt/ =0.003916 -200…+640 °C -2000…6400 0.1 °C
500 Pt/ =0.003916 -200…+640 °C -2000…6400 0.1 °C
100 Nickel -60…+250 °C -600…2500 0.1 °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 Hz, 100 Hz, 250 Hz, 500 Hz
Open wire detection Out of range, open wiring
Excitation current 1 mA
Imput impedance 5 M
4-Channel Input Thermocouple Base Module – 1790D-4T0, 1790D-T4T0
Attribute Value
Number of inputs 4 channel, Thermocouple/mV Input
Input range ±76.50 mV
4-Channel Input RTD Base Module - 1790D-4R0, 1790D-T4R0
18 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
Publication 1790-IN011C-EN-P - January 2015
Sensors supported
Sensor Type Range Scaling
Voltage 10V -76.50…+76.50 mV -7650…+7650
Type B 300…1800 °C 3000…18000
Type E -270…1000 °C -2700…10000
Type J -210…1200 °C -2100…12000
Type K -270…1370 °C -2700…13700
Type R -50…1768 °C -500…17680
Type S -50…1768 °C -500…17680
Type T -270…400 °C -2700…4000
Type N -270…1300 °C -2700…13000
Resolution 16 bits, 0.1°C/bit or 0.1°F/bit (Thermocouple 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
DeviceNet power Supply voltage – 24V DC nom
Voltage range – 11…28.8V DC
DeviceNet power dissipation 1.2 W max @ 28.8V DC
Network length 500 m (1640 ft) max @ 125 Kbps
100 m (328 ft) max @ 500 Kbps
4-Channel Input Thermocouple Base Module – 1790D-4T0, 1790D-T4T0
Attribute Value
DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O 19
Publication 1790-IN011C-EN-P - January 2015
Network protocol Slave messaging:
• Poll command
• Bit Strobe command
• Cyclic command
•COS command
Field power Supply voltage – 24V DC nom
Voltage range – 2136…26.4V DC (±10%)
Field power dissipation 1.5 W max @ 26.4V DC
Status indicators Module Status – 1 red/green
Network Status – 1 red/green
I/O Status – 4 red/green
Number of nodes 64 max - rotary switch-type node address setting
Communication rate 125 Kbps, 250 Kbps, 500 Kbps – auto baud rate 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-Shell connector
Wiring terminal screw torque,
max
0.6 Nm (5.2 lb-in.)
Removable terminal block
screw torque, max
0.56 Nm (5.0 lb-in.)
(1)
Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation Wiring and
Grounding Guidelines, publication 1770-4.1
.
General Specifications
Attribute Value
20 DeviceNet Base RTD and Thermocouple CompactBlock LDX I/O
Publication 1790-IN011C-EN-P - January 2015
Environmental Specifications
Attribute Value
Temperature, operating IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
0…55 °C (32…131 °F)
Temperature, storage IEC 60068-2-1 (Test Ab, Unpackaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged Non-operating Thermal Shock):
-40…85 °C (-40…185 °F)
Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
5…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 with 200 Hz 50% Pulse 100%AM @ 900 MHz
EFT/B immunity IEC 61000-4-4:
1 kV @ 5 kHz on power ports
±2 kV @ 5 kHz on signal ports
±2 kV @ 5 kHz on communications ports
Surge transient immunity IEC 61000-4-5:
±1 kV line-line(DM) and ±2 kV line-earth(CM) on signal ports
±2 kV line-earth(CM) on communications ports
Conducted RF immunity IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80%AM from 150 kHz…80 MHz
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Rockwell Automation Allen-Bradley 1790D-4R0 Installation Instructions Manual

Allen-Bradley 1790D-4R0
Brand
Rockwell Automation
Model
Allen-Bradley 1790D-4R0
Type
Installation Instructions Manual
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