Rockwell Automation 1797-OB4D User Manual

Installation Instructions

FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module

Catalog Number 1797-OB4D

Top ic Page

Important User Information 2

Installation in Zone 1 5

Installation on Zone 22 5

Module Installation 3

Outputs 8

Wire to a 1797-TB3 or 1797-TB3S Terminal Base Unit 9

Ground the Module 11

Indicators 11

Memory Mapping 12

Field Descriptions 12

Repair 14

Specifications 15

Cooperative Operation of the ControlNet Ex Adapter and FLEX Ex Output Modules

FLEX Ex Output Module Operation 18

Entity Parameters 19

Output Voltage versus Current Capability 29

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2 FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

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.literature.rockwellautomation.com

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 we use notes to make you aware of safety considerations.

available from your local Rockwell Automation sales office or online at

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

) describes some important differences between solid

Publication

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 consequence

Labels may be located on or inside the equipment to alert people that dangerous voltage may be present.

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FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module 3

Label here or under here

40231

Module Installation

Component identification

1 FlexBus connector 5 Terminal base unit

2 Latching mechanism 6 Alignment groove

3 Keyswitch 7 Alignment bar

4 Cap plug 8 Module

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4 FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module

ATTENTION

Install the Module

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.

This module must be used with a 1797-TB3 or 1797-TB3S intrinsically safe terminal base unit.

otate keyswitch (3) on terminal base unit (5) clockwise to position 7

1. R

as required for this type of module.

Do not change the position of the keyswitch after wiring the

minal base unit

ter

e certain the FlexBus connector (1) is pushed all the way to the

2. Mak

left to connect with the neighboring terminal base/adapter.

You cannot install the module unless the connector is fully

extende

e sure the pins on the bottom of the module are straight so they

3. Mak

will align properly with the connector in the terminal base unit.

osition the module (8) with its alignment bar (7) aligned with the

4. P

groove (6) on the terminal base.

5. Press f

irmly and evenly to seat the module in the terminal base unit. The module is seated when the latching mechanism (2) is locked into the module.

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FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module 5

WARNING

41307

6. Make certain that you only connect terminal base units to other

intrinsically safe system modules or adapters to maintain the integrity of the intrinsically-safe backplane.

emove the cap plug (4) and attach another intrinsically safe terminal

7. R

base unit to the right of this terminal base unit if required.

Installation in Zone 1

This module must not be exposed to the environment and must have a suitable metal enclosure. It has a protection factor of IP20.

This module cannot be used in an intrinsically safe environment after it has been exposed to nonintrinsically safe signals.

Installation on Zone 22

When the module is installed in Zone 22, the following cabinets must be used: IVK-ISRPI-V16LC; IVK-ISRPI-V8HYW; or IVK-ISRPI-V8LC. These cabinets can be purchased from:

Pepperl+Fuchs GmbH Lilienthalstrasse 200 68307 Mannheim, Germany Attn: PA Sales Dept. Kirsten Becker Telephone +49 776 1298 www.pepperl-fuchs.com

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6 FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module

The IS-RPI cabinets (type IVK2-ISRPI-V8LC, IVK2-ISRPI-V8HYW, or IVK2-ISPRI-V16LC) ensures the basic protection for the intrinsically safe apparatus of the FLEX Ex system for use in Zone 22. It corresponds with category 3D according to RL 94/9 EG and with the type label marked with the following information:

Pepperl+Fuchs GmbH 68307 Mannheim IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or IVK2-ISRPI-V16LC)

II 3 D Ex tD A22 IP54 T70 °C X

CE Serial (manufacturin Model

g) number

Electrostatic Charge

Protect the system against electrostatic charge. Post a sign near this module:

WARNING Avoid electrostatic charging.

ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA ELETROSTÁTICA.

For your convenience, a sign that can be cut out is included in this installation instr

uction.

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FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module 7

WARNING

Removal and Insertion Under Power

These modules are designed so you can remove and insert them under power. However, take special care when removing or inserting modules in an

active process. I/O attached to any module being removed or inserted can change states due to its input/output signal changing conditions. If you insert or remove the terminal base 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.

European Communities (EC) Directive Compliance

If this product has the CE mark it is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.

EMC Directive

These products are tested to meet the Council Directive 2004/108/EC by applying the following standards:

• EN 6100 Generic Standard for Industrial Environments (Class A)

• EN 6100 Generic Standards - Immunity for Industrial Environments

• EN6132 Measurement, Control, and Laboratory Use - Industrial EMC Requirements

0-6-4:2007, Electromagnetic Compatibility (EMC) - Part 6-4:

0-6-2:2005, Electromagnetic Compatibility (EMC) - Part 6-2:

6-1:2006 (Industrial), Electrical Equipment For

ATEX Directive

These products are tested in conjunction with associated I/O modules to meet the Council Directive 94/9/EC (ATEX) Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres by applying the following standards:

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8 FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module

FlexBus

Bus

-V

Power supply

Valve

Audible alarm

Solenoid

40069

• EN60079-11:2007, Explosive atmospheres - Part 11 : equipment protection by intrinsic safety "i"

• EN6007

9-0:2006, Electrical apparatus for explosive gas atmospheres -

Part 0 : general requirements

• EN 60

079-26 : 2004, Electrical apparatus for explosive gas atmospheres - Part 26 : construction, test and marking of Group II Category 1 G electrical apparatus

• EN6124

1-0 : 2006, Electrical apparatus for use in the presence of

combustible dust - Part 0: General requirements

• EN6124

1-11:2006, Electrical apparatus for use in the presence of

combustible dust – Part 11: Protection by intrinsic safety 'iD'

Outputs

Each output can operate a digital field device.

Do not apply any nonintrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020, the European Community directives and regulations must be followed.

The channels in this module are electrically connected to each other.

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FLEX Ex I/O 24V DC 4 Non-Isolated Source Output Module 9

No connections allowed to terminals 2, 3, 6, 7, 10, 11, 14, 15, 17 to 32, 36, 37, 38, 39, 46, 47, 48, 49.

40068A

Row A

Row B

Row C

Wire to a 1797-TB3 or 1797-TB3S Terminal Base Unit

Connect wiring to the terminal base as shown below.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

CH 0 CH 1 CH 2 CH 3

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

nnect the individual output wiring to (+) terminals (0, 4, 8, 12) on

1. Co

the 0…15 row (A) as indicated in the table below.

nnect the associated output to the corresponding (-) terminal (1, 5,

2. Co 9, 13) on the 0…15 row (A) for each output as indicated in the table below.

nect +V DC power to terminal 34 on the 34…51 row (C).

3. Con

4. Con

nect -V to terminal 35 on the 34…51 row (C).

32 33

50 51

+V -V+V -V

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