Allen-Bradley FLEX Ex 1797-OB4D Manuale utente

Publication1797-5.6 - December 2003

Installation Instructions

FLEX Ex 24V dc Non-Isolated Source 4 Output

Module

(Cat. No. 1797-OB4D)

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.ab.com/manuals/gi) 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 associated with any particular installation,

Rockwell Automation, Inc. cannot assume responsibility or liability foractual 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.

AB Parts

2FLEX Ex 24V dc Non-Isolated Source 4 Output Module

Publication1797-5.6 - December 2003

WARNING Identifies information aboutpracticesor circumstancesthat can cause an explosion in a

hazardous environment, which may lead to personal injury or death, property damage, or

economic loss.

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

product.

ATTENTION Identifiesinformationaboutpracticesorcircumstancesthatcanleadtopersonalinjuryor

death, property damage, or economic loss. Attentions help you:

•identify a hazard

•avoid a hazard

•recognize the consequence

HOCK HAZARD Labels may be located on or inside the drive to alert people that dangerous voltage may

be present.

BURN HAZARD Labels maybe locatedon or inside the drive to alert people that surfaces may be

dangerous temperatures.

Important User Information

Label here or

under here.

40231

FLEX Ex 24V dc Non-Isolated Source 4 Output Module 3

Publication 1797-5.6 - December 2003

Module Installation

This module must be used with a 1797-TB3 or -TB3S intrinsically safe

terminal base unit.

1. Rotate keyswitch (1) on terminal base unit (2) clockwise to position 7

as required for this type of module. Do not change the position of

the keyswitch after wiring the terminal base unit

2. Make certain the flexbus connector (3) is pushed all the way to the left

to connect with the neighboring terminal base/adapter. You cannot

install the module unless the connector is fully extended.

3. Make sure the pins on the bottom of the module are straight so they

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

4. Position the module (4) with its alignment bar (5) aligned with the

groove (6) on the terminal base.

5. Press firmly and evenly to seat the module in the terminal base unit.

The module is seated when the latching mechanism (7) is locked into

the module.

ATTENTIO

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.

AB Parts

4FLEX Ex 24V dc Non-Isolated Source 4 Output Module

Publication1797-5.6 - December 2003

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.

7. Remove cap plug (8) and attach another intrinsically safe terminal 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. Provide a suitable

metal enclosure. This module has a protection factor of IP20.

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

Konigsberger Allee 85-87, D-68307

Mannheim, Germany

Attn: PA Sales Dept.

Kirsten Becker

Telephone +49 776 1298

www.pepperl-fuchs.com

WARNING This module cannot be used in an intrinsically safe environment

after it has been exposed to non-intrinsically safe signals.

41307

FLEX Ex 24V dc Non-Isolated Source 4 Output Module 5

Publication 1797-5.6 - December 2003

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 IS-RPI 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

68301 Mannheim

IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or

IVK2-ISRPI-V16LC)

II 3D IP54 T 70°C

Serial (manufacturing) number

Model

Electrostatic Charge

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

Attention! Avoid electrostatic charge. For your convenience, a sign which

can be cut out is included in this installation instruction.

Removal and Insertion Under Power

WARNING 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. AB Parts

6FLEX Ex 24V dc Non-Isolated Source 4 Output Module

Publication1797-5.6 - December 2003

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 89/336/EEC

Electromagnetic Compatibility (EMC) as amended by 92/31/EC and

93/68/EEC, by applying the following standards:

•EN 61000-6-4:2001, Electromagnetic Compatibility (EMC) - Part 6-4:

Generic Standard for Industrial Environments (Class A)

•EN 61000-6-2:2001, Electromagnetic Compatibility (EMC) - Part 6-2:

Generic Standards - Immunity for Industrial Environments

•EN61326-1997 + A1-A2, Electrical Equipment For Measurement,

Control, and Laboratory Use - Industrial EMC Requirements

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:

•EN50014:1997 + A1-A2, Electrical Apparatus for Potentially

Explosive Atmospheres

•EN50020:1994, Electrical Apparatus for Potentially Explosive

Atmospheres - Intrinsic Safety .i.

•EN50284:1999, Special Requirements for Construction, Test, and

Marking of Electrical Apparatus of Equipment Group II,

Category 1G

•EN50281-1-1:1998 + A1, Electrical Apparatus for Use in the

Presence of Combustible Dust - Part 1-1: Protection by Enclosure

FLEX Ex 24V dc Non-Isolated Source 4 Output Module 7

Publication 1797-5.6 - December 2003

Outputs

Each output can operate a discrete field device.

Do not apply any non-intrinsically 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.

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

Connect wiring to the terminal base as shown below.

1. Connect the individual output wiring to (+) terminals (0, 4, 8, 12) on

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

flexbus bus

-V

power

supply

valve audible

alarm solenoid

40069

40068

Row A

Row B

Row C

++++--- -

ch0 ch1 ch2 ch3

+V +V-V -V

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

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

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

46, 47, 48, 49

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

AB Parts

8FLEX Ex 24V dc Non-Isolated Source 4 Output Module

Publication1797-5.6 - December 2003

2. Connect the associated output to the corresponding (-) terminal (1, 5,

9, 13) on the 0-15 row (A) for each output as indicated in the table

below.

3. Connect +V dc power to terminal 34 on the 34-51 row (C).

4. Connect -V to terminal 35 on the 34-51 row (C).

5. If continuing power to the next terminal base unit, connect a jumper

from terminal 50 (+V) on this base unit to terminal 34 on the next

base unit.

6. If continuing common to the next terminal base unit, connect a

jumper from terminal 51 (-V) on this base unit to terminal 35 on the

next base unit.

WARNING Make certain that you power this module with an intrinsically

safe power supply. Do not exceed the values listed in the

specifications for this module.

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.

FLEX Ex 24V dc Non-Isolated Source 4 Output Module 9

Publication 1797-5.6 - December 2003

Wiring

Grounding

All I/O wiring must use shielded wire. Shields must be terminated external to

the module, such as bus bars and shield-terminating feed throughs.

Output Output + Output -

Output 0 A-0 A-1

Output 1 A-4 A-5

Output 2 A-8 A-9

Output 3 A-12 A-13

+V C-34 and C-50

-V C-35 and C-51

ATTENTION Do not use the unused terminals on this terminal base

unit. Using these terminals as supporting terminals

can result in damage to the module and/or

unintended operation of your system.

30820-M

AB Parts

10 FLEX Ex 24V dc Non-Isolated Source 4 Output Module

Publication1797-5.6 - December 2003

Indicators

A = Status Indicators - yellow - individual input present; flashing red -

channel fault; solid red - module did not pass powerup check; Channel

0 - solid red while power up check is running

B = Insertable labels for writing individual input designations

C = Power Indicator - green indicates power applied to module

Memory Mapping

Dec

Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Oct.

Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00

Read

0OVL

3OVL

2OVL

1OVL

0F3 F2 F1 F0

Write

0Out

Enb L FM

3FM

2FM

1 FM

0 FS

3 FS

2 FS

1 FS

0 03 02 01 00

Write

1FR Alarm Filter - Ch

0-3

1797-OB4D

PWR

ABC40067

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