Rockwell Automation 1771-OWNA User Manual

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Installation Instructions

Contact Output Module

(Catalog Number 1771–OWNA)

Contents

Important User Information

Use this document as a guide when installing the catalog number 1771-OWNA series B contact output module.

To See page

Important User Information 1 Preinstallation Considerations 4

Power Supply Requirements 4 Key the Backplane Connector 5

Install the Module and Field Wiring Arm 6

Connect Wiring to the Field Wiring Arm 7

For this reference information See page

Interpreting the Status Indicators 11 Hazardous Location Approval 12 Specifications 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.

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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

ATTENTION

IMPORTANT

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.

Identifies information about practices or circumstances that may lead to personal injury or death, property damage, or economic loss.

Identifies information that is critical for successful application and understanding of the product.

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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.

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PreĆinstallation Considerations

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 and 15W at 60 should have a power factor (PF) of 1.0.

C maximum. Ac loads switched by the modules

Power Supply Requirements

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.

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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.

Position the keying bands in the backplane connectors to correspond to the key slots on the module.

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.

Place the keying bands:

- between 6 and 8

- between 16 and 18

Upper Connector

11022ĆI

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Install the Module and

ATTENTION

Field Wiring Arm

WARNING

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

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

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.

1771ĆA1B, ĆA2B, ĆA4B Series B I/O chassis

Snap the chassis latch over the top of the module to secure it.

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.

Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage.

1771ĆWN

remove

horizontal bar

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.

install

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Connect Wiring to the 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

ATTENTION

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.

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.

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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.)

The field wiring arm terminal identification

IMPORTANT

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

Common 0 Output 1

Output 3 Output 5

Output 7

Common 1 Output 11

Output 13

Output 15 Output 17

Common 2 Output 1

Output 3

Output 5

Output 7 Common 3

Output 11

Output 13

Output 15

Output 17

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Note: Terminals on the left are even numbered, and terminals on the right are odd numbered.

(Actual wiring runs in this direction.)

If multiple power supplies are used, do not exceed the maximum isolation voltage.

ATTENTION

Miswiring or shorting the output terminals will

Note: All contacts are N.O., nonselectable.

cause permanent damage to this module.

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Table A

Wiring Connections for the 1771-OWNA Contact Output Module

Terminal Number

1 Common 0 21 Common 2

2 Output 00 22 Output 00

3 Output 01 23 Output 01

4 Output 02 24 Output 02

5 Output 03 25 Output 03

6 Output 04 26 Output 04

7 Output 05 27 Output 05

8 Output 06 28 Output 06

9 Output 07 29 Output 07

10 Not used 30 Not used

11 Common 1 31 Common 3

12 Output 10 32 Output 10

13 Output 11 33 Output 11

14 Output 12 34 Output 12

Function

Terminal Number

Function

15 Output 13 35 Output 13

16 Output 14 36 Output 14

17 Output 15 37 Output 15

18 Output 16 38 Output 16

19 Output 17 39 Output 17

20 Not used 40 Not used

If using multiple power supplies, do not exceed the specified isolation voltage.

ATTENTION

Observe proper polarity with dc power connections. Reverse polarity, or application of ac voltage could damage the module.

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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

ATTENTION

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)

Common 0 Output 1 Output 3 Output 5

Output 7 Common 1 Output 11 Output 13

Output 15 Output 17

Common 2 Output 1

Output 3

Output 5 Output 7 Common 3 Output 11

Output 13 Output 15 Output 17

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.

120V AC Input Module (Cat. No. 1771ĆIAD)

ac High

ac Low

15K ohm, 2W resistor

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

If multiple power supplies are used, do not exceed the maximum isolation voltage.

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Interpreting the Status Indicators

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.

Status Indicators (red)

10541ĆI

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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.

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Specifications

Outputs per module 32 (4 groups of 8)

Module Location 1771ĆA1B thru ĆA4B or later I/O Chassis, 1771ĆAM, ĆAM1 I/O

Chassis

Voltage Rating 24 Ć 138V ac rms; 24 Ć 125V dc

Current Rating1Max. per channel

Max. per module Max. per group

Maximum Surge Current 1A (max) per output (at rated power)

1A continuous (derate linearly 0.033A/oC above 45oC) 12A (derate linearly 0.4A/ 4A (derate linearly 0.133A/

C above 45oC)

Output Contact Power Rating 30W per output (resistive) maximum at 45oC, 15W at 60oC

Minimum Contact Load 10mA

Operate/Release Time 5ms (+1ms) typical

Bounce Time 1ms (max)

Switching Frequency 10Hz (max)

Power Dissipation All relays off: 15mW; All relays on: 13.7W (max.)

Thermal Dissipation All relays off: 0.05 BTU/hr; All relays on: 46.7 BTU/hr (max.)

Backplane Current 2.5A maximum; 1.8A nominal

Isolation Voltage Tested to withstand 1000V for 60s.

Interconnect Cable Length 1000 ft. (304.8 meters)

Conductors Wire Size

14-22 AWG (2.5-0.5mm2) (max) stranded copper rated at 60oC or greater 3/64 inch (1.2mm) insulation (max)

Rockwell Automation 1771-OWNA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual