Allen-Bradley 1794-OB16 Manuale utente

English

FLEX I/O is a trademark of Rockwell Automation Publication1794-5.3–July1999

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(Cat. No. 1794-OB16)

Module Installation

This module mounts on a 1794 terminal base unit.

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

as required for this type of module.

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 that 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.

!ATTENTION: To use this module in a complementary

I/O system, refer to your Remote I/O Adapter module

documentation.

Installation Instructions

24V dc

FLEX I/O 16 Source Output Module2

Publication 1794-5.3 – July 1999

!ATTENTION: Remove field-side power before

removing or inserting this module. This module is

designed so you can remove and insert it under

backplane power. When you remove or insert a module

with field-side power applied, an electrical arc may

occur. An electrical arc can cause personal injury or

property damage by:

•sending an erroneous signal to your system’s field

devices causing unintended machine motion

•causing an explosion in a hazardous environment

Repeated electrical arcing causes excessive wear to

contacts on both the module and its mating connector.

Worn contacts may create electrical resistance.

European Union 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

This product is tested to meet Council Directive 89/336/EEC

Electromagnetic Compatibility (EMC) and the following standards, in

whole or in part, documented in a technical construction file:

•EN 50081-2 EMC – Generic Emission Standard, Part 2 – Industrial

Environment

•EN 50082-2 EMC – Generic Immunity Standard, Part 2 – Industrial

Environment

This product is intended for use in an industrial environment.

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low Voltage,

by applying the safety requirements of EN 61131–2 Programmable

Controllers, Part 2 – Equipment Requirements and Tests.

For specific information required by EN 61131-2, see the appropriate

sections in this publication, as well as the following Allen-Bradley

publications:

•Industrial Automation Wiring and Grounding Guidelines For Noise

Immunity, publication 1770-4.1

•Automation Systems Catalog, publication B111

This equipment is classified as open equipment and must be mounted in

an enclosure during operation to provide safety protection.

24V dc

FLEX I/O 16 Source Output Module 3

Publication 1794-5.3 – July 1999

Wiring to a 1794-TB2, -TB3 or -TB3S Terminal Base Unit

1. Connect individual outputwiring to numbered terminals on the 0–15

row (A) as indicated in the table below.

1. Connect the associated output common to the corresponding terminal

on the 16–33 row (B) for each output as indicated in the table below.

(Commons are internally connected together.)

2. Connect +24V dc power to terminal 34 on the 34–51 row (C).

3. Connect dc return to terminal 16 on the 16–33 row (B).

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

from terminal 51 (+24V dc) on this base unit to terminal 34 on the

next base unit.

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

from terminal 33 (common) on this base unit to terminal 16 on the

next base unit.

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

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

345

11 1

13 14 15

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

1794-TB3

0 –15

34–51

16–33 A

0123456789101112131415

18 19 20 21 22 23 3324 25 26 27 28 29 30 31 3217

35 36 37 38 47 48 49 5034 51

Label placed at top of wiring area.

Row A

Row B

Row C

Row A

Row B

Row C

39 40 41 42 43 44 45 46

1794-TB3S

ATTENTION: Total current draw through the terminal

base unit is limited to 10A. Separate power connections to

the terminal base unit may be necessary.

24V dc

FLEX I/O 16 Source Output Module4

Publication 1794-5.3 – July 1999

Output Output

Terminal Common

Terminal Output Output

Terminal Common

Terminal

Output 0 A–0 B–17 Output 8 A–8 B–25

Output 1 A–1 B–18 Output 9 A–9 B–26

Output 2 A–2 B–19 Output 10 A–10 B–27

Output 3 A–3 B–20 Output 11 A–11 B–28

Output 4 A–4 B–21 Output 12 A–12 B–29

Output 5 A–5 B–22 Output 13 A–13 B–30

Output 6 A–6 B–23 Output 14 A–14 B–31

Output 7 A–7 B–24 Output 15 A–15 B–32

Common B–16 thru B–33 +24v dc C–34 thru C–51

Indicators

1514131211109876543210

24 VDC SOURCE OUTPUT 1794–OB16

Allen-Bradley

A= Status Indicators – show status of individual outputs.

B= Insertable label for writing individual output designations.

MemoryMapping

Bit⇒

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

Read Not used

Write O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0

Where: O = Output value

24V dc

FLEX I/O 16 Source Output Module 5

Publication 1794-5.3 – July 1999

Specifications – 24V dc Output Module Cat. No. 1794-OB16

Number of Outputs 16 (1 group of 16), non-isolated, sourcing

Module Location Cat. No. 1794-TB3, -TB3S Terminal Base Unit

ON-state Voltage Range 10V dc minimum

24V dc nominal;

31.2V dc maximum

Output Current Rating 8A (16 outputs @ 0.5A)

OFF-state Voltage 31.2V dc maximum

ON-state Current 1.0mA minimum per channel

500mA maximum per channel

Surge Current 2A for 50ms, repeatable every 2 seconds

OFF-state Leakage 0.5mA maximum

ON-state Voltage Drop 0.5V dc maximum

Isolation Voltage (minimum) 100% tested at 850V dc for 1s between user

and system

No isolation between individual channels

Output Signal Delay

Off to On On to Off

0.5ms maximum

1.0ms maximum

Flexbus Current (maximum) 80mA

Power Dissipation 5.3W maximum @ 31.2V

Thermal Dissipation 18.1 BTU/hr @ 31.2V dc

Indicators (field side

indication, logic driven) 16 yellow status indicators

Fuse recommendations1Fusing of outputs is recommended.

Use SAN–O MQ4–800mA fuses

Keyswitch Position 2

Specifications continued on next page.

24V dc

FLEX I/O 16 Source Output Module6

Publication 1794-5.3 – July 1999

Specifications – 24V dc Output Module Cat. No. 1794-OB16

General Specifications

External dc Power

Supply Voltage

Voltage Range

Supply Current

24V dc nominal

19.2 to 31.2V dc (includes 5% ac ripple)

49mA @ 24V dc (38 to 65mA)

Dimensions Inches

(Millimeters) 1.8H x 3.7W x 2.1D

(45.7 x 94.0 x 53.3)

Environmental Conditions

Operational Temperature

Storage Temperature

Relative Humidity

Shock Operating

Non-operating

Vibration

0 to 55oC (32 to 131oF)

–40 to 85oC (–40 to 185oF)

5 to 95% noncondensing

30 g peak acceleration, 11(+1)ms pulse width

50 g peak acceleration, 11(+1)ms pulse width

Tested 5 g @ 10–500Hz per IEC 68-2-6

Conductors Wire Size

Category

12 gauge (4mm2) stranded maximum

3/64 inch (1.2mm) insulation maximum

Agency Certification •CSA certified

•CSA Class I, Division 2

Groups A, B, C, D certified

•UL listed

•CE marked for all applicable directives

1You use thisconductor category information for planning conductor routing. Refer to publication

1770-4.1,“IndustrialAutomationWiringandGroundingGuidellinesforNoiseImmunity.”

24V dc

FLEX I/O 16 Source Output Module 7

Publication 1794-5.3 – July 1999

CSA Hazardous Location Approval Approbation d’utilisation dans des

emplacements dangereux par la CSA

CSAcertifies products for general use as well as

for use in hazardous locations. Actual CSA

certification is indicated by the product label

as shown below, and not by statements in any

userdocumentation.

La CSAcertifielesproduitsd’utilisationgénérale

aussibien que ceux qui s’utilisent dans des

emplacementsdangereux.La certification CSA en

vigueur est indiquée par l’étiquette du produit et

non par des affirmations dansladocumentationà

l’usagedesutilisateurs.

Example of the CSA certification product label

Exemple d’étiquette de certfication d’un produit par la CSA

To comply with CSA certification for use in

hazardouslocations,thefollowinginformation

becomes a part of the product literature for

CSA-certifiedAllen-Bradleyindustrialcontrol

products.

•This equipment is suitable for use in Class I,

Division2,

Groups A, B, C, D, or non-hazardous locations

only.

•The products having the appropriate CSA

markings (that is, Class I Division 2, Groups A,

B, C, D), are certified for use in other

equipmentwherethesuitabilityofcombination

(that is, application or use) is determined by

the CSA or the local inspection office having

jurisdiction.

Pour satisfaire à la certification de la CSA dans des

endroitsdangereux,lesinformations suivantes font

partieintégrante de la documentation des produits

industrielsdecontrôleAllen-Bradley certifiés par la

CSA.

•Cetéquipementconvientàl’utilisationdansdes

emplacementsde Classe I, Division 2, Groupes A,

B, C, D, ou ne convient qu’à l’utilisation dans des

endroitsnondangereux.

•Les produits portant le marquage approprié de la

CSA (c’est à dire, Classe I, Division 2, Groupes A,

B, C, D) sont certifiés à l’utilisation pour d’autres

équipementsoùlaconvenance de combinaison

(applicationou utilisation) est déterminée par la

CSAoulebureau local d’inspection qualifié.

Important: Due to the modular nature of a PLC

controlsystem, the product with the highest

temperatureratingdeterminesthe overall

temperature code rating of a PLC control system

in a Class I, Division 2 location. The temperature

code rating is marked on the product label as

shown.

Important: Par suite de la nature modulaire du

systèmedecontrôlePLC, le produit ayant le taux le

plus élevé de température détermine le taux

d’ensemble du code de température du système de

contrôle d’un PLC dans un emplacement de Classe I,

Division 2. Le taux du code de température est

indiquésurl’étiquettedu produit.

Temperature code rating

Look for temperature

code rating here

Le taux du code de

températureest indiqué ici

Taux du code de tempéra-

ture I

Thefollowing warnings apply to products having

CSAcertificationforuseinhazardouslocations. Lesavertissementssuivants s’appliquent auxproduits

ayantla certification CSA pour leur utilisation dans

desemplacements dangereux.

24V dc

FLEX I/O 16 Source Output Module8

Publication 1794-5.3 – July 1999

Approbation d’utilisation dans des

emplacements dangereux par la CSA

CSA Hazardous Location Approval

!ATTENTION: Explosion hazard —

•Substitutionofcomponents may

impair suitability for Class I,

Division2.

•Donotreplacecomponentsunless

power has been switched off or the

area is known to be non-hazardous.

•Donotdisconnectequipmentunless

power has been switched off or the

area is known to be non-hazardous.

•Donotdisconnectconnectors

unless power has been switched off

or the area is known to be

non-hazardous.Secureany

user-suppliedconnectorsthat mate

to external circuits on an

Allen-Bradleyproductusing screws,

slidinglatches, threaded connectors,

or other means such that any

connectioncanwithstanda 15

Newton (3.4 lb.) separating force

applied for a minimum of one

minute.

!AVERTISSEMENT: Risque d’explosion —

•Lasubstitutiondecomposantspeut

rendrecematérielinacceptable pour

lesemplacementsdeClasse I, Division

•Couper le courant ou s’assurer

quel’emplacementestdésigné non

dangereuxavantderemplacer

lescomposants.

•Avantde débrancher l’équipement,

couper le courant ou s’assurer que

l’emplacementestdésigné non

dangereux.

•Avantde débrancher les connecteurs,

couper le courant ou s’assurer que

l’emplacementestreconnunon

dangereux.Attachertous connecteurs

fournispar l’utilisateur et reliés aux

circuitsexternesd’un appareil

Allen-Bradleyà l ’aide de vis, loquets

coulissants,connecteurs filetés ou

autresmoyenspermettantaux

connexions de résister à une force de

séparation de 15 newtons (3,4 lb. - 1,5

kg) appliquée pendant au moins une

minute.

Le sigle CSA est la marque déposée de l’Association des Standards pour le Canada.

PLC est une marque déposée de Allen-Bradley Company, Inc.

CSA logo is a registered trademark of the Canadian Standards Association

PLC is a registered trademark of Allen-Bradley Company, Inc.

Withmajorofficesworldwide.

World Headquarters,

Allen-Bradley,

1201 South Second Street,

Milwaukee, WI 53204 USA,

Tel: (1) 414 382-2000 Fax: (1) 414 382-4444

Publication 1794-5.3 – July 1999

Supersedes publication 1794-5.3 – December 1996 PN955123–77A

Indice

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