Rockwell Automation 1734-OB2EP User Manual

Installation Instructions

POINT I/O Protected Output Module

(Cat. No. 1734-OB2EP)

Module

Status

Network

Status

NODE:

24V DC Protected

Output

1734

OB2EP

41825OB2E

Description Description

Mounting Base

2 Mechanical Keying (orange) 7

6 RTB Removal Handle

Removable Terminal Block (RTB)

3 Module Wiring Diagram 8 DIN Rail Locking Screw (orange)

4 Module Locking Mechanism 9 Slide-in Writable Label

5 Insertable I/O Module 10 Interlocking Side Pieces

Wiring Base Assembly consists of item 1) mounting base, 1734-MB and item 7) removable terminal block, 1734-RT or -RTS.

POINT I/O is a trademark of Rockwell Automation DeviceNet is a trademark of ODVA, Inc. Publication 1734-IN586A-EN-P - December 2001

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WARNING

ATTENTION

Important User Information

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 Allen-Bradley 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, Allen-Bradley 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 the Application, Installation and Maintenance of Solid-State Control (available from your local Allen-Bradley 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.

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:

Publication 1734-IN586A-EN-P - December 2001

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 can lead to personal injury or death, property damage, or economic loss.

POINT I/O Protected Output Module 3

IMPORTANT

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

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 enclosure. 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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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.

Installing the Mounting Base

To install the mounting base on the DIN rail, proceed as follows.

1. Position the mounting base vertically above the installed units

(adapter, power supply or existing module.

2. Slide the mounting base down allowing the interlocking side

pieces to engage the adjacent module or adapter.

3. Press firmly to seat the mounting base on the DIN rail. The

mounting base will snap into place.

4. To remove the mounting base from the DIN rail, remove the

module, and use a small bladed screwdriver to rotate the base locking screw to a vertical position. This releases the locking mechanism. Then lift straight up to remove.

Installing the I/O Module

The module can be installed before, or after base installation. Make sure that the mounting base is correctly keyed before installing the

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POINT I/O Protected Output Module 5

WARNING

module into the mounting base. In addition, make sure the mounting base locking screw is positioned horizontal referenced to the base.

1. Using a bladed screwdriver, rotate the keyswitch (2) on the

mounting base clockwise until the number required for the type of module being installed aligns with the notch in the base.

2. Make certain the DIN rail locking screw is in the horizontal

position. (You cannot insert the module if the locking mechanism is unlocked.)

3. Insert the module straight down into the mounting base and

press to secure. The module will lock into place.

When you insert 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.

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