Rockwell Automation 1734-OW2-OW4 User Manual

Installation Instructions

POINT I/O 2 and 4 Relay Output Modules

Catalog numbers 1734-OW2, 1734-OW4, Series C

Table of Contents

Topic Page

Important User Information 2
Environment and Enclosure 3
Preventing Electrostatic Discharge 3
North American Hazardous Location Approval 5
Additional Resources 6
About the Module 7
Mount the I/O Base 9
Install the Module 10
Install the Removable Terminal Block 11
Remove a Mounting Base 12
Communicate with Your Module 13
Wire the Module 14
Interpret Status Indicators 18
Specifications 20

2 POINT I/O 2 and 4 Relay Output Modules

IMPORTANT

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

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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.

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

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 or be approved for the application
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

1770-4.1

, for additional installation requirements.

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

POINT I/O 2 and 4 Relay Output Modules 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 wrist strap.

• 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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European Hazardous Location Approval

European Zone 2 Certification (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.

ATTENTION: POINT I/O 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.

WARNING: This equipment must be installed in an enclosure providing at least
IP54 protection when applied in Class I, Zone 2 environments.

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 40% when applied in Class I,
Zone 2 environments.

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

WARNING: Exposure to some chemicals may degrade the sealing properties of
materials used in the following devices:
Relay K2 and K4, Epoxy for 1734-OW2, and Relay K1 through K4, Epoxy for
1734-OW4.

It is recommended that the User periodically inspect these devices for any
degradation of properties and replace the module if degradation is found.

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POINT I/O 2 and 4 Relay Output Modules 5

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 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 qu'à 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
système, le code de température le plus défavorable
(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.

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
I, Division 2.

•S'assurer que l'environnement est
classé non dangereux avant de changer
les piles.

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6 POINT I/O 2 and 4 Relay Output Modules

Additional Resources

These documents contain additional information concerning related Rockwell
Automation products.

Resource Description

1769-L32E and 1769-L35E CompactLogix
Controller Installation Instructions,
publication 1768-IN020

1769-L32C and 1769-L35CR
CompactLogix Controller Installation
Instructions, publication 1769-IN070

1769-L31 CompactLogix Controller
Installation Instructions, publication

1769-IN069

1769-SDN Compact I/O DeviceNet
Scanner Module Installation
Instructions, publication 1769-IN060

Industrial Automation Wiring and
Grounding Guidelines, publication

1770-4.1

Product Certifications website

http://www.ab.com

.

.

.

.

Provides details on how to assemble and
mount the controller, how to upgrade firmware,
and controller technical specifications.

Provides details on how to assemble and
mount the controller, how to upgrade firmware,

.

and controller technical specifications.
Provides details on how to assemble and

mount the controller, how to upgrade firmware,
and controller technical specifications.

Provides information about installing the
1769-SDN module and technical

.

specifications.
Provides general guidelines for installing a

Rockwell Automation industrial system.

Provides declarations of conformity,
certificates, and other certification details.

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POINT I/O 2 and 4 Relay Output Modules 7

M

odule
Status

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ork

S

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s

N

O

D

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0

1

2

3

1

2

3
4

5

6

7

8

9

10

45720

About the Module

These POINT™ I/O 2 and 4 Relay Output Modules, 1734-OW2, 1734-OW4, Series C
products can be used with DeviceNet and PROFIBUS adapters. They can be used with
ControlNet and Ethernet adapters using RSLogix 5000, version 11 or later.

See the figures to familiarize yourself with major parts of the modules. The wiring base
assembly consists of a mounting base, 1734-MB, and removable terminal block, 1734-RTB
or 1734-RTBS, and 1734-TOP or 1734-TOPS one-piece terminal base.

Modules Mounted on Removeable Terminal Block and Mounting Base

Description Description

1 Module locking mechanism 6 Slide-in writable label
2 Module wiring diagram 7 Insertable I/O module
3 DIN rail locking screw (orange) 8 Removable terminal block handle
4 Mechanical keying 9 Removable terminal block (RTB)
5 Interlocking side pieces 10 Mounting base

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8 POINT I/O 2 and 4 Relay Output Modules

1

2

3

4

5

6

7

8

45712

Modules Mounted on 1734-TOP or 1734-TOPS One-piece Terminal Base

Description Description

1 Module locking mechanism 5 Interlocking side pieces
2 Module wiring diagram 6 Slide-in writable label
3 DIN rail locking screw (orange) 7 Handle
4 Mechanical keying 8 1734-TOP or 1734-TOPS one-piece

terminal base with screw or spring
clamp

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