Allen-Bradley Contact Output Module Installation Instructions
Allen-Bradley Contact Output Module is a versatile and reliable device designed for switching resistive loads in industrial automation applications. It's part of the 1771 I/O system and offers 32 outputs, each capable of handling 1A continuous current, making it suitable for various control tasks. The module features a field wiring arm, providing easy connection and allowing for module removal without disconnecting wires.
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Contents
Important User
Information
Installation Instructions
Contact Output Module
(Catalog Number 1771–OWNA)
Use this document as a guide when installing the catalog number
1771-OWNA series B contact output module.
To
Important User Information
Preinstallation Considerations
Power Supply Requirements
Key the Backplane Connector
Install the Module and Field Wiring Arm
Connect Wiring to the Field Wiring Arm
For this reference information
Interpreting the Status Indicators
Hazardous Location Approval
Specifications
6
7
4
5
See page
1
4
See page
11
12
13
Because of the variety of uses for the products described in this publication, those responsible for the application and use of these products must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements, including any applicable laws, regulations, codes and standards. In no event will Rockwell Automation be responsible or liable for indirect or consequential damage resulting from the use or application of these products.
Any illustrations, charts, sample programs, and layout examples shown in this publication are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Rockwell Automation does not assume responsibility or liability (to include intellectual property liability) for actual use based upon the examples shown in this publication.
Allen–Bradley publication SGI–1.1, Safety Guidelines for
Application, Installation, and Maintenance of Solid–State Control
(available from your local Rockwell Automation office), describes some important differences between solid–state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication.
Publication 1771-IN038B-EN-P - August 2002
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Contact Output Module
Reproduction of the contents of this copyrighted publication, in whole or part, without written permission of Rockwell Automation, is prohibited.
Throughout this publication, notes may be used to make you aware of safety considerations. The following annotations and their accompanying statements help you to identify a potential hazard, avoid a potential hazard, and recognize the consequences of a potential hazard.
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 may lead to personal injury or death, property damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful application and understanding of the product.
Publication 1771-IN038B-EN-P - August 2002
Contact Output Module
ATTENTION
!
Environment and Enclosure
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 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 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.
See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosures. Also, see the appropriate sections in this publication, as well as the
Allen–Bradley publication 1770–4.1, (“Industrial
Automation Wiring and Grounding Guidelines”), for additional installation requirements pertaining to this equipment.
3
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Contact Output Module
PreĆinstallation
Considerations
Power Supply
Requirements
ATTENTION
!
Preventing Electrostatic Discharge
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.
•
If available, use a static–safe workstation.
•
When not in use, keep modules in appropriate static–safe packaging.
This module must be used in a 1771-A1B through -A4B or later I/O chassis.This module does not contain surge limiting circuitry. Use
this module for switching resistive loads only. It is not recommended for inductive or capacitive loads.
The outputs are arranged in 4 groups of 8, each group with its own common. The module can simultaneously switch all 32 outputs to separate loads, with a maximum of 12A per module. Each output can conduct a maximum load of 1.0A continuously at 30W at 45 o
C, and 15W at 60 o
C maximum. Ac loads switched by the modules should have a power factor (PF) of 1.0.
Maximum interconnect cable length for this module is 1000 ft.
(304.8 meters).
The controller or I/O chassis power supply, connected through the backplane of the I/O chassis, powers the logic circuitry of the contact output modules. This supply also provides the necessary power to energize the coils of the module relays. The maximum current drawn from this supply when all coils are energized is 2.5A. Nominal backplane current is 1.8A.
Publication 1771-IN038B-EN-P - August 2002
Key the Backplane
Connector
Place your module in any slot in the chassis except the leftmost slot which is reserved for processors or adapters.
ATTENTION
Observe the following precautions when inserting or removing keys:
!
• insert or remove keys with your fingers
• make sure that key placement is correct
Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults.
Contact Output Module
Position the keying bands in the backplane connectors to correspond to the key slots on the module.
Place the keying bands:
- between 6 and 8
- between 16 and 18
5
I/O chassis
You can change the position of these bands if subsequent system design and rewiring makes insertion of a different type of module necessary.
Upper
Connector
11022ĆI
Publication 1771-IN038B-EN-P - August 2002
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Contact Output Module
Install the Module and
Field Wiring Arm
ATTENTION
!
Remove power from the 1771 I/O chassis backplane before you install the module. Failure to remove power from the backplane could cause:
• module damage
• degradation of performance
• injury or equipment damage due to possible unexpected operation
WARNING
!
When you insert or remove the module with field power applied, or connect or disconnect the field wiring arm with field side power applied, 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.
1
Place the module in the card guides on the top and bottom of the chassis that guide the module into position.
Important:
Apply firm even pressure on the module to seat it into its backplane connector.
1771ĆA1B, ĆA2B, ĆA3B, ĆA4B I/O chassis 1771ĆA1B, ĆA2B, ĆA4B Series B I/O chassis
Snap the chassis latch over the top of the module to secure it.
Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage.
2
Attach the wiring arm (1771ĆWN) to the horizontal bar at the bottom of the I/O chassis.
The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires.
1771ĆWN remove horizontal bar install
The 1771–OWNA module is a modular component of the 1771 I/O system requiring a properly installed system chassis. Refer to publication 1771–IN075 for detailed information on acceptable chassis, proper installation and grounding requirements. Limit the maximum adjacent slot power dissipation to 10W maximum.
Publication 1771-IN038B-EN-P - August 2002
Connect Wiring to the
Module
Contact Output Module
Make wiring connections to the module through the field wiring arm
(cat. no. 1771-WN). The arm pivots on the I/O chassis to connect with terminals on the front of the module and acts as a terminal strip.
The wiring arm allows the module to be removed from the chassis without disconnecting wiring.
WARNING
!
When you connect or disconnect the field wiring arm with field power applied, or remove the module while backplane power is on, 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.
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.
•
Failure to remove power from the backplane could cause injury or equipment damage due to possible unexpected operation.
1. Make certain all power is removed from the module before making wiring connections.
2. Swing the wiring arm up into position on the front of the module.
The locking tab on the module will secure it into place.
7
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Contact Output Module
3. Make your connections to the field wiring arm as shown in the connection diagram and Table A. (Use the label on the front of the wiring arm to identify your wiring.)
IMPORTANT
The field wiring arm terminal identification number is not the same as the number of the bit which controls that output.
Connection Diagram for the 1771-OWNA DC Output Module
Output 0
Output 2
Output 4
Output 6
Not used
Output 10
Output 12
Output 14
Output 16
Not used
Output 0
Output 2
Output 4
Output 6
Not used
Output 10
Output 12
Output 14
Output 16
Not used
20
22
24
14
16
18
6
8
2
4
10
12
26
28
30
32
34
36
38
40
Note: Terminals on the left are even numbered, and terminals on the right are odd numbered.
Note: All contacts are N.O., nonselectable.
(Actual wiring runs in this direction.)
If multiple power supplies are used, do not exceed the maximum isolation voltage.
10539ĆI
ATTENTION
Miswiring or shorting the output terminals will cause permanent damage to this module.
!
Common 2
Output 1
Output 3
Output 5
Output 7
Common 3
Output 11
Output 13
Output 15
Output 17
Common 0
Output 1
Output 3
Output 5
Output 7
Common 1
Output 11
Output 13
Output 15
Output 17
Publication 1771-IN038B-EN-P - August 2002
Contact Output Module
9
16
17
14
15
12
13
10
11
Terminal
Number
1
2
5
6
3
4
7
8
9
Function
Common 0
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Not used
Common 1
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Terminal
Number
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Function
Not used
Common 3
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
18
19
Output 16
Output 17
38
39
Output 16
Output 17
20 Not used 40 Not used
If using multiple power supplies, do not exceed the specified isolation voltage.
Common 2
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
ATTENTION
Observe proper polarity with dc power connections. Reverse polarity, or application of ac voltage could damage the module.
!
Publication 1771-IN038B-EN-P - August 2002
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Contact Output Module
ATTENTION
!
Do not attempt to increase load current or wattage capability beyond the rating by connecting two or more outputs in parallel. The slightest variation in output relay switching time may cause one set of contacts to switch the total load current.
Output 0
Output 2
Output 4
Output 6
Not used
Output 10
Output 12
Output 14
Output 16
Not used
Output 0
Output 2
Output 4
Output 6
Not used
Output 10
Output 12
Output 14
Output 16
Not used
You can use the output of a 1771-OWNA output module to drive an input of a 120V ac input module (1771-IA, -IA2, -IAD) to indicate status of turning on a motor starter as shown below, for example, but you must connect a 15K, 2W resistor between the output and L2
(common). Inputs configured with the output module are not isolated from each other.
Driving an Input Module with a 1771-OWNA Output Module
Selectable Contact Output Module
(Cat. No. 1771ĆOWNA)
120V ACInput Module
(Cat. No. 1771ĆIAD)
L1 ac High
Common 2
Output 1
Output 3
Output 5
Output 7
Common 3
Output 11
Output 13
Output 15
Output 17
Common 0
Output 1
Output 3
Output 5
Output 7
Common 1
Output 11
Output 13
Output 15
Output 17
15K ohm, 2W resistor
15
16
17
18
19
20
21
8
9
10
11
12
13
14
3
4
1
2
5
6
7
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Input 17
L2 ac Low
If multiple power supplies are used, do not exceed the maximum isolation voltage.
10540ĆI
Publication 1771-IN038B-EN-P - August 2002
Interpreting the Status
Indicators
Contact Output Module
11
The module has 32 status indicators on the module front plate. These represent the control status of the outputs. Each indicator is lit when its corresponding output is energized. An additional indicator is provided to indicate a blown fuse condition.
14
15
16
17
10
11
12
13
04
05
06
07
00
01
02
03
14
15
16
17
10
11
12
13
04
05
06
07
00
01
02
03
Status Indicators (red)
10541ĆI
Publication 1771-IN038B-EN-P - August 2002
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Contact Output Module
The following information applies when operating this equipment in hazardous locations:
Products marked CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2
Groups A, B, C, and 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.
WARNING
!
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.
Informations sur l'utilisation de cet équipement en environnements dangereux:
Les produits marqués CL I, DIV 2, GP A, B, C, D ne conviennent que 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 systéme, le code de température le plus défavorable (code de température le plus faible) peut eatre utilisé pour déterminer le code de température global du systéme. Les combinaisons d'equipements dans le systéme sont sujettes à inspection par les autorités locales qualifiées au moment de l'installation.
AVERTISSEMENT
!
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 1,
Division 2.
•
S'assurer que l'environnement est classé non dangereux avant de changer les piles.
Publication 1771-IN038B-EN-P - August 2002
Specifications
Contact Output Module
13
Outputs per module
Module Location
Voltage Rating
Current Rating
1
Max. per channel
Max. per module
Max. per group
Maximum Surge Current
Output Contact Power Rating
Minimum Contact Load
Operate/Release Time
Bounce Time
Switching Frequency
Power Dissipation
Thermal Dissipation
Backplane Current
Isolation Voltage
Interconnect Cable Length
Conductors Wire Size
32 (4 groups of 8)
1771ĆA1B thru ĆA4B or later I/O Chassis, 1771ĆAM, ĆAM1 I/O
Chassis
24 Ć 138V ac rms; 24 Ć 125V dc
1A continuous (derate linearly 0.033A/
12A (derate linearly 0.4A/ o
Cabove 45
4A (derate linearly 0.133A/ o o o
Cabove 45
Cabove 45 o
C)
C)
C)
1A (max) per output (at rated power)
2
30W per output (resistive) maximum at 45 o
C, 15W at 60 o
C
10mA
5ms (+1ms) typical
1ms (max)
10Hz (max)
All relays off: 15mW; All relays on: 13.7W (max.)
All relays off: 0.05 BTU/hr; All relays on: 46.7 BTU/hr (max.)
2.5A maximum; 1.8A nominal
Tested to withstand 1000V for 60s.
1000 ft. (304.8 meters)
14-22 AWG (2.5-0.5mm
2
) (max) stranded copper rated at 60 o
Cor greater
3/64 inch (1.2mm) insulation (max)
2
3
Category
Environmental Conditions
Operating
Temperature
Storage Temperature
IEC60068-2-1 (Test Ad, Operating Cold)
IEC60068-2-2 (Test Bd, Operating Dry Heat)
IEC60068-2-14 (Test Nb, Operating Thermal Shock)
32 to 140°F (0 to 60 o
C)
IEC60068-2-1 (Test Ab, Unpackaged, Nonoperating Cold)
IEC60068-2-2 (Test Bb, Unpackaged, Nonoperating Dry Heat)
IEC60068-2-14 (Test Na, Unpackaged, Nonoperating Thermal
Shock)
-40 to 185°F (-40 to 85 o
C)
Relative Humidity
Shock
Operating
Nonoperating
Vibration
IEC60068-2-30 (Test Db, Unpackaged, Nonoperating Damp Heat)
5 to 95%, noncondensing
IEC60068-2-27 (Test Ea, Unpackaged Shock)
30g
50g
ESD Immunity
Radiated RF Immunity
IEC60068-2-6 (Test Fc, Operating)
2g @ 10-500Hz
IEC61000-4-2
4kV contact discharges
IEC61000-4-3
10V/m with 1kHz sine-wave 80% AM from 30MHz to 1000MHz
10V/m with 200Hz 50% pulse 100% AM at 900MHz
EFT/B Immunity IEC61000-4-4
+1kV @ 5kHz on signal ports
Specifications continued on next page.
Publication 1771-IN038B-EN-P - August 2002
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Contact Output Module
Surge Transient Immunity
Conducted RF Immunity
IEC61000-4-5
+1kV line-line (DM) and +2kV line-earth (CM) on signal ports
IEC61000-4-6
10V rms with 1kHz sine wave 80% AM from 150kHz to 30MHz
Emissions
Enclosure Type Rating
Keying
CISPR 11
Group 1, Class A (with appropriate enclosure)
None (open-style)
Between 6 and 8
Between 16 and 18
1771ĆWN Field Wiring Arm
1
2
3
4
Wiring Arm Screw Torque
Certifications
(when product is marked)
9 pound-inches (1.0Nm)
UL UL Listed Industrial Control Equipment
CSA CSA Certified Process Control Equipment
CSA CSA Certified Process Control Equipment for Class I,
CE
4
Division 2 Group A, B, C, D Hazardous Locations
European Union 89/336/EECEMCDirective,
C-Tick
4 compliant with:
EN 61000-6-4, Industrial Emissions
EN 50082-2, Industrial Immunity
EN 61326, Meas./Control/Lab., Industrial Requirements
EN 61000-6-2, Industrial Immunity
European Union 73/23/EECLVD Directive, compliant with:
EN 61131-2, Programmable Controllers
Australian Radiocommunications Act, compliant with:
AS/NZS 2064, Industrial Emissions
Spikes, peaks and surges must be within the power rating. Resistive loads only. ac and dc power = 30W max.
Surge limiting circuitry is not provided in the module. For reliable operation, the user must ensure that surges do not exceed either the voltage or current rating of the module.
You use this conductor category information for planning conductor routing as described in publication 1770Ć4.1, Industrial
Automation Wiring and Grounding Guidelines.
See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates and other certification details
Publication 1771-IN038B-EN-P - August 2002
Contact Output Module
15
Publication 1771-IN038B-EN-P - August 2002
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Contact Output Module
Publication 1771-IN038B-EN-P - August 2002 PN957678-80
Copyright 2002 Rockwell Automation, Inc. Printed in USA

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Key features
- 32 outputs
- 1A continuous current
- Field wiring arm
- Resistive load switching