Rockwell Automation 1734-OB2E-4E-8E User Manual

Installation Instructions

1734 POINT I/O Protected Output
Module

Catalog numbers 1734-OB2E, 1734-OB4E, 1734-OB8E, Series C

Table of Contents

Topic Page

Important User Information 2

Environment and Enclosure 3

Preventing Electrostatic Discharge 3

North American Hazardous Location Approval 4

European Hazardous Location Approval 5

Before You Begin 6

Install the Mounting Base 7

Install the Module 8

Install the Removable Terminal Block 9

Remove a Mounting Base 10

Communicate with Your Module 11

Wire the Module 12

Interpret Status Indicators 16

Specifications 18

2 1734 POINT I/O Protected Output Module

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

http://www.rockwellautomation.com/literature/

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.

available from your local Rockwell Automation sales office or online at

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.

) describes some important differences between

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.

Publication 1734-IN056H-EN-P - May 2013

Environment and Enclosure

ATTENTION: This equipment is intended for use in a Pollution Degree 2

industrial environment, in overvoltage Category II applications (as defined in IEC
60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according
to IEC/CISPR 11. Without appropriate precautions, there may be difficulties with
electromagnetic compatibility in residential and other environments due to
conducted and radiated disturbances.

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
nonmetallic. 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, publication

1770-IN041

• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the
degrees of protection provided by enclosures.

, for additional installation requirements.

1734 POINT I/O Protected Output Module 3

Preventing Electrostatic Discharge

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.

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4 1734 POINT I/O Protected Output Module

North American Hazardous Location Approval

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, D, Hazardous
Locations and nonhazardous locations only. Each product is
supplied with markings on the rating nam eplate indicating
the hazardous location temperature code. When comb ining
products within a system, the most adverse temp erature code
(lowest "T" number) may be used to help determ ine 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.

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 r emoved
or the area is known to be nonhazardous.
Secure any external connection s 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 batt eries, 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 qu'à une utilisation en en vironnements de
Classe I Division 2 Groupes A, B, C, D dangereux et no n
dangereux. Chaque produit est livré avec des marquages
sur sa plaque d'identification qui indiquent le code de
température pour les environnements dangereu x. Lorsque
plusieurs produits sont combinés dans un système, le code
de température le plus défavorab le (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.

RISQUE D’EXPLOSION

• Couper le courant ou s'as surer que
l'environnement est classé non dangere ux
avant de débrancher l'équipement.

• Couper le courant ou s'as surer que
l'environnement est classé non dangere ux
avant de débrancher les connecteurs. Fixer
tous les connecteurs externes rel iés 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 pile s.

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1734 POINT I/O Protected Output Module 5

European Hazardous Location Approval

The following applies when the product bears the Ex Marking

This equipment is intended for use in potentially explosive atmospheres as defined by
European Union Directive 94/9/EC.

DEMKO certifies that this equipment has been found to comply with the Essential Health
and Safety Requirements relating to the design and construction of Category 3 equipment
intended for use in Zone 2 potentially explosive atmospheres, given in Annex II to this
Directive.

Compliance with the Essential Health and Safety Requirements has been assured by
compliance with EN 60079-15.

ATTENTION: This equipment is not resistant to sunlight or other sources of
UV radiation.

WARNING: This equipment shall be mounted in an ATEX certified enclosure
with a minimum ingress protection rating of at least IP54 (as defined in
IEC60529) and used in an environment of not more than Pollution Degree 2
(as defined in IEC 60664-1) when applied in Zone 2 environments. The
enclosure must utilize a tool removable cover or door.

WARNING: This equipment shall be used within its specified ratings
defined by Rockwell Automation.

WARNING: Provision shall be made to prevent the rated voltage from being
exceeded by transient disturbances of more than 140% of the rated voltage
when applied in Zone 2 environments.

WARNING: This equipment must be used only with ATEX certified Rockwell
Automation backplanes.

WARNING: Secure any external connections that mate to this equipment by
using screws, sliding latches, threaded connectors, or other means provided
with this product.

WARNING: Do not disconnect equipment unless power has been removed
or the area is known to be nonhazardous.

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6 1734 POINT I/O Protected Output Module

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Before You Begin

You can use these Series C POINT I/O™ Protected Output modules with DeviceNet and
PROFIBUS adapters. If you are using RSLogix 5000 software, version 11 or higher, you
can also use the Series C modules with ControlNet and Ethernet adapters.

Use this diagram to identify the external features of the module. The 1734-OB4E module
is shown here.

POINT I/O Protected Output Module

Description Description

1 Module locking mechanism 6 Mounting base

2 Slide-in writable label 7 Interlocking side pieces

3 Insertable I/O module 8 Mechanical keying (orange)

4 Removable Terminal Block (RTB) handle 9 DIN rail locking screw (orange)

5 Removable Terminal Block 10 Module wiring diagram

Note: The wiring base assembly comprises the mounting base, 1734-MB, and the
Removable Terminal Block, 1734-RTB or 1734-RTBS.

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1734 POINT I/O Protected Output Module 7

Install the Mounting Base

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

ATTENTION: This product is grounded through the DIN rail to chassis ground.
Use zinc plated yellow-chromate steel DIN rail to assure proper grounding. The
use of other DIN rail materials (for example, aluminum or plastic) that can
corrode, oxidize, or are poor conductors, can result in improper or intermittent
grounding. Secure DIN rail to mounting surface approximately every 200 mm
(7.8 in.) and use end-anchors appropriately.

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 snaps
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.

ATTENTION: Do not remove or replace an Adapter Module while power is
applied. Interruption of the backplane can result in unintentional operation or
machine motion.

Publication 1734-IN056H-EN-P - May 2013