Rockwell Automation 1769-OB32T User Manual

Installation Instructions

Compact 32-point Solid-state 24V dc Source Output Module

Catalog Number 1769-OB32T

Top ic Page

About the 1769-OB32T Module 5

Spare/Replacement Module Parts 6

Install the 1769-OB32T Module 6

Replace a Single Module Within a System 7

Mount Expansion I/O 8

Mount Module to Panel 9

Mount Module to DIN Rail 10

Output Wiring 10

Wiring Options for the I/O Module 12

Ground the 1769-OB32T Module 14

Label for the 1492 Interface Module 14

Assemble the Wire Contacts 15

Output Data File 16

Output Module’s Input Data File 16

Configuration File 17

Transistor Output Transient Pulses 20

Specifications 21

Additional Resources 23

About This Publication

Use this document as a guide when installing a Compact 32-point Solid-state 24V dc Source Output Module.

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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://literature.rockwellautomation.com) 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

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you to identify a hazard, avoid a hazard, and recognize the consequences.

Labels may be located on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

Labels may be located on or inside the equipment, for example, a drive or motor, to alert people that surfaces may be at dangerous temperatures.

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Compact 32-point Solid-state 24V dc Source Output Module 3

Prevent Electrostatic Discharge

ATTENTION

Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins. Follow these guidelines when you handle the module.

– Touch a grounded object to discharge static potential. – Wear an approved wrist-strap grounding device. – Do not touch the bus connector or connector pins. – Do not touch circuit components inside the module. – If available, use a static-safe work station. – When not in use, keep the module in its static-shield box.

Remove Power

ATTENTION

Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:

– sending an erroneous signal to your system’s field devices, causing

– causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance.

unintended machine motion.

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Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or nonhazardous locations only. The following WARNING statement applies to use in hazardous locations.

WARNING

Explosion Hazard

• Substitution of components may impair suitability for Class I, Division 2.

• Do not replace components or disconnect equipment unless power is switched off or the area is known to be nonhazardous.

• Do not connect or disconnect components unless power is switched off or the area is known to be nonhazardous.

• This product must be installed in an enclosure.

• All wiring must comply with N.E.C. article 501-4(b).

Environnements dangereux

Cet équipement est conçu pour être utilisé dans des environnements de Classe 1, Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante s’applique à une utilisation dans des environnements dangereux.

AVERTISSEMENT

Danger D’explosion

• La substitution de composants peut rendre cet équipement impropre à une utilisation en environnement de Classe 1, Division 2.

• Ne pas remplacer de composants ou déconnecter l'équipement sans s'être assuré que l'alimentation est coupée et que l'environnement est classé non dangereux.

• Ne pas connecter ou déconnecter des composants sans s'être assuré que l'alimentation est coupée ou que l'environnement est classé non dangereux.

• Ce produit doit être installé dans une armoire.

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Compact 32-point Solid-state 24V dc Source Output Module 5

About the 1769-OB32T Module

Compact I/O is suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use

in clean, dry environments (Pollution degree 2

(2)

Over Voltage Category II

(IEC 60664-1)

Module Description

7a 7a

7b 7b

+VDC2

+VDC1

+VDC2

+VDC1

OUT 16

OUT 0

OUT 17

OUT 1

OUT 18

OUT 2

OUT 19

OUT 3

OUT 20

OUT 4

OUT 21

OUT 5

OUT 22

OUT 6

OUT 23

OUT 7

OUT 24

OUT 8

OUT 25

OUT 9

OUT 26

OUT 10

OUT 27

OUT 11

OUT 28

OUT 12

OUT 29

OUT 13

OUT 30

OUT 14

OUT 31

OUT 15

DC COM 1 DC COM 2

DC COM 2 DC COM 1

1769-OB32T

(1)

) and to circuits not exceeding

(3)

Labels

Item Description

1 Bus lever (with locking function)

2a Upper-panel mounting tab

2b Lower-panel mounting tab

3 I/O diagnostic LED indicators

4 Module door with terminal

31563A-M

identification label

5a Movable bus connector

with female pins

5b Stationary bus connector

with male pins

6 Nameplate label

7a Upper

tongue-and-groove slots

7b Lower

tongue-and-groove slots

8a Upper DIN-rail latch

8b Lower DIN-rail latch

9 Write-on label (user ID tag)

10 MIL-C-83503 connector

(1)

Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally a temporary conductivity caused by condensation is expected.

(2)

Over Voltage Category II is the load level section of the electrical distribution system. At this level, transient voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.

(3)

Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.

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Spare/Replacement Module Parts

You can order the 1746-N3 connector kit, which contains one connector and 40 terminals.

Install the 1769-OB32T Module

Attach the module to the controller or an adjacent I/O module before or after mounting.

For mounting instructions, see Mount Module to Panel Using the Dimensional Template on page 9, or Mount Module to DIN Rail on page 10.

Refer to Replace a Single Module Within a System on page 7 to work with a system that is already mounted.

30536-M

The following procedure shows you how to assemble the Compact I/O system.

1. Disconnect power.

2. Check that the bus lever of the module to be installed is in the unlocked

(fully-right) position.

3. Use the upper and lower tongue-and-groove slots (1) to secure the modules

together (or to a controller).

4. Move the module back along the tongue-and-groove slots until the bus

connectors (2) line up with each other.

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Compact 32-point Solid-state 24V dc Source Output Module 7

5. Use your fingers or a small screwdriver to push the bus lever back slightly to

clear the positioning tab (3).

6. To allow communication between the controller and module, move the bus

lever fully to the left (4) until it clicks, making sure it is locked firmly in place.

ATTENTION

When attaching I/O modules, it is very important that the bus connectors are securely locked together to be sure of proper electrical connection.

7. Attach an end-cap terminator (5) to the last module in the system by using

the tongue-and-groove slots as before.

8. Lock the end-cap bus terminator (6).

IMPORTANT

You must use a 1769-ECR or 1769-ECL right or left end cap to terminate the end of the serial communication bus.

Replace a Single Module Within a System

The module can be replaced while the system is mounted to a panel (or DIN rail).

1. Remove power.

Refer to Remove Power on page 3.

2. Remove the upper and lower mounting screws from the module (or open

the DIN latches using a flat-blade or Phillips-style screwdriver).

3. Move the bus lever to the right to disconnect (unlock) the bus.

4. On the right-side adjacent module, move its bus lever to the right (unlock)

to disconnect it from the module to be removed.

5. Gently slide the disconnected module forward.

If you feel excessive resistance, check that the module is disconnected from the bus and that both mounting screws are removed (or DIN latches opened).

TIP

It may be necessary to rock the module slightly from front to back to remove it, or, in a panel-mounted system, to loosen the screws of adjacent modules

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8 Compact 32-point Solid-state 24V dc Source Output Module

6. Be sure that the bus lever on the module and on the right-side adjacent

module are in the unlocked (fully-right) position before installing the replacement module.

7. Slide the replacement module into the open slot.

8. Connect the modules by locking (fully-left) the bus levers on the

replacement module and the right-side adjacent module.

9. Replace the mounting screws (or snap the module onto the DIN rail).

Mount Expansion I/O

ATTENTION

During panel or DIN rail mounting of all devices, be sure that all debris, including metal chips or wire strands, is kept from falling into the module. Debris that falls into the module could cause damage when cycling power.

Minimum Spacing

Maintain spacing from enclosure walls, wireways, or adjacent equipment. Allow 50 mm (2 in.) of space on all sides for adequate ventilation, as shown.

Top

Side Side

Controller

Compact I/O

Bottom

Compact I/O

End Cap

Compact I/O

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