Allen-Bradley C Series Manuale utente

Installation Instructions

Original Instructions

FLEX I/O DeviceNet Adapter Module

Catalog Numbers

1794-ADN and 1794-ADNK, Series C

Topic Page

Important User Information 2

Environment and Enclosure 3

North American Hazardous Location Approval 4

European Hazardous Location Approval 5

Electrical Safety Considerations 5

Prevent Electrostatic Discharge 7

Special Conditions for Safe Use 7

Overview 8

InstallingYour DeviceNet Adapter Module 9

Status Indicators 13

Specifications 16

2Rockwell Automation Publication 1794-IN099D-EN-P - November 2018

FLEX I/O DeviceNet Adapter 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 1794-IN099D-EN-P - November 2018 3

FLEX I/O DeviceNet Adapter 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 1794-IN099D-EN-P - November 2018

FLEX I/O DeviceNet Adapter Module

North American Hazardous Location Approval

The 1794-ADN and 1794-ADNK, Series C modules are Hazardous Location approved:

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 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.

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.

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

unsorted municipal waste.

ATTENTION:

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

cleaning agents.

Rockwell Automation Publication 1794-IN099D-EN-P - November 2018 5

FLEX I/O DeviceNet Adapter Module

European Hazardous Location Approval

Electrical Safety Considerations

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 Ex nA IIC T4 Gc according to EN 60079-15.

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

LCIE 01 ATEX 6020 X I 09; II3G Ex nA IIC T4 Gc.

• 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.

ATTENTION: Power to this equipment and all connected I/O must be supplied

from a source compliant with the following:

• SELV source approved to EN/IEC60950-1, EN/IEC61010-2-201

or EN/IEC62368-1 (ES1)

• PELV source approved to EN/IEC60950-1, EN/IEC61010-2-201

or EN/IEC62368-1 (ES1)

Note: A power source approved to a U.S.A. or Canadian version of the above listed

standards is required for system approval in the U.S.A. or Canada.

ATTENTION: All wiring must comply with applicable electrical installation

requirements (e.g., N.E.C. article 501-4(b)).

ATTENTION: Wire conductor and insulation ratings shall support minimum

temperature rating of 85 °C (185 °F)

6Rockwell Automation Publication 1794-IN099D-EN-P - November 2018

FLEX I/O DeviceNet Adapter Module

WARNING:

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

• This equipment shall be mounted in an ATEX Zone 2 certified enclosure with a

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

60079-15) and used in an environment of not more than Pollution Degree 2

(as defined in EN 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.

• Secure any external connections that mate to this equipment by using screws,

sliding latches, threaded connectors, or other means provided with

this product.

• Do not disconnect equipment unless power has been removed or the area is

known to be nonhazardous.

• Enclosure must be marked with the following: "Warning - Do not open when

energized." After installation of equipment into the enclosure, access to

termination compartments shall be dimensioned so that conductors can be

readily connected.

• Earthing is accomplished through mounting of modules on rail.

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

Rockwell Automation Publication 1794-IN099D-EN-P - November 2018 7

FLEX I/O DeviceNet Adapter Module

Prevent Electrostatic Discharge

Special Conditions for Safe Use

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.

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 AutomationWiring and Grounding Guidelines,

publication 1770-4.1, for more information.

• Do not remove or replace a terminal base unit while power is applied.

Interruption of the backplane can result in unintentional operation or

machine motion.

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

Interruption of the backplane can result in unintentional operation or

machine motion.

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

protection provided by the equipment may be impaired.

• To reduce susceptibility to noise, power analog modules and digital modules

from separate power supplies.

8Rockwell Automation Publication 1794-IN099D-EN-P - November 2018

FLEX I/O DeviceNet Adapter Module

Overview

DeviceNet Adapter, Cat. No. 1794-ADN/C, and 1794-ADNK/C

WARNING:

• If you insert or remove themodulewhile backplane power is on, an electric 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.

• If you connect or disconnect the communications cable with power applied to

this module or any device on the network, an electric 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.

• If you connect or disconnect wiring while the field side 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.

• 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.

• For Class I Division 2 applications, use only Class I Division 2 listed or recognized

accessories and modules approved for use within the 1794 platform.

Component Identification

1 DeviceNet Adapter Module 5 DeviceNet Node selection

thumbwheel switches

44976

Rockwell Automation Publication 1794-IN099D-EN-P - November 2018 9

FLEX I/O DeviceNet Adapter Module

Installing Your DeviceNet Adapter Module

Mounting on a DIN rail before installing the terminal base Units

1. Position the DeviceNet adapter module (A) on an IEC standard, (35 x

7.5 x 1 mm) top-hat DIN rail (B), at a slight angle.

2. Hook the lip on the rear of the adapter onto the top of the DIN rail, and

rotate the adapter onto the rail.

3. Press the adapter module down onto the DIN rail until flush. Locking

tab C will snap into position and lock the adapter to the DIN rail.

4. If the adapter does not lock in place, use a screwdriver or similar device

to move the locking tab down while pressing the adapter flush onto the

DIN rail, and release the locking tab to lock the adapter in place. If

necessary, push up on the locking tab to lock.

5. Connect the adapter wiring as shown under “Connecting Wiring” later

in this document.

2 Indicators 6 +24V DC connections

3 Wiring label 7 24V common connections

4 DeviceNet network cable (plug-in, screw-secured) 8 Flexbus connector

ATTENTION: During mounting of all devices, be sure that all debris (metal chips,

wire strands, etc.) is kept from falling into the module. Debris that falls into the

module could cause damage on power up.

Component Identification

44977

10 Rockwell Automation Publication 1794-IN099D-EN-P - November 2018

FLEX I/O DeviceNet Adapter Module

Mount on a Panel or Wall

If mounting this adapter to a panel or wall, refer to publication 1794-IN135,

Panel Mounting Kit, Cat. No. 1794-NM1/B.

Mounting (or Replacing) the Adapter on an Existing System

1. Remove the DeviceNet plug-in connector from the front of the adapter.

2. Disconnect any wiring jumpered to the adjacent terminal base.

3. Open the module latching mechanism and remove the module from the

base unit to which the adapter will be attached.

4. Push the Flexbus connector toward the right side of the terminal base to

unplug the backplane connection.

5. Release the locking tab and remove the adapter module.

6. Before installing the new adapter, notice the notch on the right rear of

the adapter. This notch accepts the hook on the terminal base unit. The

notch is open at the bottom. The hook and adjacent connection point

keep the terminal base and the adapter tight together, reducing the

possibility of a break in communication over the backplane.

44978

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