Allen-Bradley POINT I/O 1734-OB2 Manuale utente

Installation Instructions

Original Instructions

POINT I/O Output Module

Catalog Numbers

1734-OB2, 1734-OB4, 1734-OB4K, 1734-OB8, 1734-OB8K, Series C

Catalog numbers with the suffix ‘K’ are conformal coated and their

specifications are the same as non-conformal coated catalogs.

Topic Page

Important User Information 2

Environment and Enclosure 3

North American Hazardous Location Approval 4

European Hazardous Location Approval 5

Before You Begin 8

Install the Mounting Base 9

Install the Module 9

Install the Removable Terminal Block 10

Remove a Mounting Base 12

Communicate with the Module 12

Wire the Modules 14

Interpret Status Indicators 18

Specifications 20

2Rockwell Automation Publication 1734-IN018D-EN-E - January 2019

POINT I/O 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 available from your local Rockwell Automation sales office or online at

http://www.rockwellautomation.com/literature/) 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 that are 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: 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.

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.

Rockwell Automation Publication 1734-IN018D-EN-E - January 2019 3

POINT I/O Output Module

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 EN/IEC 60664-1),

at altitudes up to 2000 m (6562 ft) without derating.

This equipment is not intended for use in residential environments and may not

provide adequate protection to radio communication services in such environments.

This equipment is supplied as open-type equipment for indoor use. 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 5V A 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 more

information regarding specific enclosure type ratings that are required to comply

with certain product safety certifications.

In addition to this publication, see the following:

• Industrial AutomationWiring and Grounding Guidelines,

publication 1770-4.1, for additional installation requirements.

• NEMA Standard 250 and EN/IEC 60529, as applicable, for explanations of the

degrees of protection provided by enclosures.

ATTENTION: Read this document and the documents listed in the Additional

Resources section about installation, configuration, and operation of this

equipment before you install, configure, operate, or maintain this product. Users

are required to familiarize themselves with installation and wiring instructions in

addition to requirements of all applicable codes, laws, and standards.

Installation, adjustments, putting into service, use, assembly, disassembly, and

maintenance are required to be carried out by suitably trained personnel in

accordance with applicable code of practice. In case of malfunction or damage, no

attempts at repair should be made. The module should be returned to the

manufacturer for repair. Do not dismantle the module.

4Rockwell Automation Publication 1734-IN018D-EN-E - January 2019

POINT I/O Output Module

North American Hazardous Location Approval

The Following Information Applies When

Operating This Equipment In Hazardous Locations.

Informations sur l’utilisation de cet équipement en

environnements dangereux.

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 andnonhazardous 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.

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.

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.

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.

WARNING: When used in a Class I, Division 2, hazardous location, this equipment

must be mounted in a suitable enclosure with proper wiring method that

complies with the governing electrical codes.

Rockwell Automation Publication 1734-IN018D-EN-E - January 2019 5

POINT I/O Output Module

European Hazardous Location Approval

The following applies to products marked

• Are intended for use in potentially explosive atmospheres as defined by European Union

Directive 2014/34/EU and 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 and EN 60079-0.

• Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and

Safety Requirements relating to the design and construction of such equipment given in

Annex II to Directive 2014/34/EU. See the EC Declaration of Conformity at

http://www.rockwellautomation.com/global/certification/overview.page for details.

• The type of protection is II 3G Ex nA IIC T4 Gc according to EN 60079-15.

• Comply to Standards EN 60079-0:2012, EN 60079-15:2010, reference certificate number

DEMKO04ATEX0330347X.

• Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists,

or air are unlikely to occur, or are likely to occur only infrequently and for short periods. Such

locations correspond to Zone 2 classification according to ATEX directive 2014/34/EU.

• May have catalog numbers followed by a“K”to indicate a conformal coating option.

6Rockwell Automation Publication 1734-IN018D-EN-E - January 2019

POINT I/O Output Module

Prevent Electrostatic Discharge

WARNING:

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

• This equipment shall be mounted in an ATEX/IECEx Zone 2 certified enclosure

with a minimum ingress protection rating of at least IP54 (in accordance with

EN/IEC 60079-15) and used in an environment of not more than Pollution

Degree 2 (as defined in EN/IEC 60664-1) when applied in Zone 2

environments. The enclosure must be accessible only by the use of a tool.

• This equipment shall be used within its specified ratings defined by

Rockwell Automation.

• Provision shall be made to prevent the rated voltage from being exceeded by

transient disturbances of more than 140% of the peak rated voltage when

applied in Zone 2 environments.

• The instructions in the user manual shall be observed.

• This equipment must be used only with ATEX certified

Rockwell Automation® backplanes.

• Earthing is accomplished through mounting of modules on rail.

• Devices shall be used in an environment of not more than Pollution Degree 2.

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.

Rockwell Automation Publication 1734-IN018D-EN-E - January 2019 7

POINT I/O Output Module

Special Conditions for Safe Use

Electrical Safety Considerations

ATTENTION:

• This product is grounded through the DIN rail to chassis ground. Use zinc

plated chromate-passivated 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. Be sure to ground the DIN rail

properly. Refer to Industrial Automation Wiring and Grounding Guidelines,

publication 1770-4.1, for more information.

• Do not remove or replace an Adapter Module while power is applied.

Interruption of the backplane can result in unintentional operation or

machine motion.

• Do not discard the end cap. Use this end cap to cover the exposed

interconnections on the last mounting base on the DIN rail. Failure to do so

could result in equipment damage or injury from electric shock.

• If this equipment is used in a manner not specified by the manufacturer, the

protection provided by the equipment may be impaired.

ATTENTION:

• This equipment is certified for use only within the surrounding air temperature

range of -20…+55 °C (-4…+131 °F). The equipment must not be used

outside of this range.

• Use only a soft dry anti-static cloth to wipe down equipment. Do not use any

cleaning agents.

At the end of its life, this equipment should be collected separately from any

unsorted municipal waste.

8Rockwell Automation Publication 1734-IN018D-EN-E - January 2019

POINT I/O Output Module

Before You Begin

You can use these Series C POINT I/O™ 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-OB4

module is shown here.

POINT I/O 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 handle 9 DIN rail locking screw (orange)

5RemovableTerminalBlock 10 Module wiring diagram

24VDC

Source

Output

Module

Status

Network

Status

1734

OB4

NODE:

The wiring base assembly consists of a mounting

base, 1734-MB, and RemovableTerminal Block,

1734-RTB, or 1734-RTBS. 44330

Rockwell Automation Publication 1734-IN018D-EN-E - January 2019 9

POINT I/O Output Module

Install 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 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.

Install the Module

The module can be installed before or after base installation. Make sure that the

mounting base is correctly keyed before installing the module into the mounting

base. In addition, make sure that the mounting base locking screw is positioned

horizontal referenced to the base.

1. Using a bladed screwdriver, rotate the keyswitch on the mounting base

clockwise until the number required for the type of module being

installed aligns with the notch in the base.

2. Verify that the DIN rail locking screw is in the horizontal position. You

cannot insert the module if the locking mechanism is unlocked.

WARNING: 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.

Repeated electrical arcing causes excessive wear to contacts on both the module

and its mating connector. Worn contacts may create electrical resistance that can

affect module operation.

10 Rockwell Automation Publication 1734-IN018D-EN-E - January 2019

POINT I/O Output Module

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

4. Press to secure. The module locks into place.

Install the Removable Terminal Block

A Removable Terminal Block (RTB) is supplied with your wiring base assembly.

To remove, pull up on the RTB handle. This allows the mounting base to be

removed and replaced as necessary without removing any of the wirings. To

reinsert the Removable Terminal Block, proceed as follows.

1. Insert the end opposite the handle into the base unit.

This end has a curved section that engages with the wiring base.

2. Rotate the terminal block into the wiring base until it locks itself

in place.

3. If an I/O module is installed, snap the RTB handle into place on

the module.

WARNING: When you connect or disconnect the RemovableTerminal Block (RTB)

with field-side power applied, an electrical arc can occur. This can cause an

explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

Hook the RTB end into the

mounting base end, and rotate

until it locks into place.

44012

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