Allen-Bradley 1746-IA4 Bedienungsanleitung

Publication 1746-IN027C-EN-P - August 2008

Installation Instructions

Digital I/O Modules

Input Module Catalog Numbers: 1746-IA4, 1746-IA8, 1746-IA16, 1746-IB8,

1746-IB16, 1746-IC16, 1746-IG16, 1746-IH16, 1746-IM4, 1746-IM8,

1746-IM16, 1746-IN16, 1746-ITB16, 1746-ITV16, 1746-IV8, 1746-IV16

Output Module Catalog Numbers: 1746-OA8, 1746-OA16, 1746-OAP12,

1746-OB8, 1746-OB6EI, 1746-OB16, 1746-OB16E, 1746-OBP8, 1746-OBP16,

1746-OG16, 1746-OV8, 1746-OV16, 1746-OVP16, 1746-OW4, 1746-OW8,

1746-OW16, 1746-OX8

Combination Input/Output Module Catalog Numbers: 1746-IO4, 1746-IO8,

1746-IO12, 1746-IO12DC

Topic Page

Important User Information 3

Overview 4

Hazardous Location Considerations 4

Environnements Dangereux 5

Install and Remove the Module 5

Octal Label Kit Installation (for PLC processors only) 6

Apply the Octal Filter Label 7

Apply the Octal Door Label 7

Removable Terminal Blocks 7

Fuse Protection and Blown Fuse Diagnostics 8

Fuse Protection (1746-OBP16 and 1746-OVP16 modules) 9

Fuse Protection (1746-OAP12 modules) 9

Blown Fuse Diagnostics 9

Processor Operation in Case of Blown Fuse - Processor Continues 11

2Digital I/O Modules

Publication 1746-IN027C-EN-P - August 2008

Processor Operation in Case of Blown Fuse - Processor Faults 12

Recovery From Blown Fuse/Processor Fault/Processor Shutdown 14

Replacement Fuse Recommendations 14

Replace Fuses 15

Electronically Protected Modules (1746-OB6EI and 1746-OB16E) 16

Auto Reset Operation 17

Short Circuit/Overload Current Diagnostics 17

Recovery from Channel Shutdown 17

Wiring Diagrams 18

Labeling for SLC/PLC Systems 18

Input Modules - ac 19

Input Modules - dc 21

Output Modules - ac 23

Output Modules - dc 24

Relay Contact Output Modules 27

Input/Output Combination Modules 28

Specifications 30

General I/O 30

Heat Dissipation 30

Input Modules - ac 32

Input Modules - dc 34

Output Modules - ac 37

Output Modules - dc 38

Relay Contact Output Modules 43

Relay Contact Ratings 44

Input/Output Combination Modules 44

Digital I/O Modules 3

Publication 1746-IN027C-EN-P - August 2008

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://literature.rockwellautomation.com) 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 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.

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

the product.

ATTENTION Identifies information about practices or circumstances that can lead to personal injury

or death, property damage, or economic loss. Attentions help you to identify a hazard,

avoid a hazard, and recognize the consequences.

SHOCK HAZARD

Labels may be located on or inside the equipment, for example, a drive or motor, to

alert people that dangerous voltage may be present.

BURN HAZARD

Labels may be located on or inside the equipment, for example, a drive or motor, to

alert people that surfaces may reach dangerous temperatures.

4Digital I/O Modules

Publication 1746-IN027C-EN-P - August 2008

Overview

In addition to providing the module’s electrical specifications, this document tells

you how to:

•install the module into a chassis.

•wire the module’s terminal block.

•install the Octal Filter Label.

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or

nonhazardous locations only. The following warning statement applies to use in

hazardous locations.

WARNING EXPLOSION HAZARD

Substitution of components may impair suitability for Class I, Division 2.

Do not replace components or disconnect equipment unless power has been

switched off or the area is known to be nonhazardous.

Do not connect or disconnect components unless power has been switched

off or the area is known to be nonhazardous.

All wiring must comply with N.E.C. article 501-4(b).

Digital I/O Modules 5

Publication 1746-IN027C-EN-P - August 2008

Environnements Dangereux

Cet équipement est conçu pour être utilisé dans des environnements de Classe I,

Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante

s’applique à une utilisation dans des environnements dangereux.

Install and Remove the Module

WARNING DANGER D’EXPLOSION

La substitution de composants peut rendre cet équipement impropre à une

utilisation en environnement de Classe I, Division 2.

Ne pas remplacer de composants ou déconnecter l'équipement sans s'être

assuré que l'alimentation est coupée.

Ne pas connecter ou déconnecter des composants sans s'être assuré que

l'alimentation est coupée.

ATTENTION

Never install, remove, or wire modules with power applied to chassis.

IMPORTANT The first slot of the chassis is reserved for the processor or the 1747-ASB

module.

6Digital I/O Modules

Publication 1746-IN027C-EN-P - August 2008

Follow these steps to install the module.

Octal Label Kit Installation (for PLC processors only)

The octal label kit consists of an octal filter label and a door label. Use these octal

labels to replace the decimal labels that are attached to the I/O modules.

TIP The octal label kit can be obtained from your Allen-Bradley distributor. The

octal kit is ordered based on the catalog number of the I/O module.

Please refer to the SLC 500 Modular Hardware Style User Manual,

publication 1747-UM011, for a listing of octal label kit catalog numbers.

Slot 1 A

Max 2 mm2 (14 AWG).

Max 2 wires per terminal.

Max torque: 0.9 Nm (8 lb-in).

1. Disconnect power.

2. Align the circuit board of

module with the chassis

card guide. (A)

3. Slide the module into the

chassis until the bottom

tabs lock into place. (B)

4. Route the wires down and

away from the module,

securing them with the wire

tie. (C)

5. Cover all unused slots with

Card Slot Filler, catalog

number 1746-N2, to keep

the chassis free from debris.

6. To remove the module,

press and hold the module

release located on each

self-locking tab, and slide

the module out of the

chassis slot. (D)

Module Installation

Digital I/O Modules 7

Publication 1746-IN027C-EN-P - August 2008

Apply the Octal Filter Label

1. Remove the octal filter label from its paper carrier.

2. Align the octal filter label numbers horizontally to the module color bar and

over the decimal filter numbers.

Refer to page 8 for filter label placement.

3. Apply the octal label to the filter.

4. Press firmly to be sure that the label adheres properly.

Apply the Octal Door Label

1. Remove the octal door label from its paper carrier.

2. Align the octal label directly over the decimal door label on the inside of the

door.

Refer to page 8 for door label placement.

3. Press firmly to be sure that the label adheres properly.

Removable Terminal Blocks

Colored terminal blocks are removable by loosening the upper and lower retaining

screws. Black terminal blocks are not removable.

ATTENTION

Do not touch or remove the terminal block when the SLC 500 system is

powered. Contact with ac line potential may cause injury to personnel.

8Digital I/O Modules

Publication 1746-IN027C-EN-P - August 2008

Installing Octal Labels

Fuse Protection and Blown Fuse Diagnostics

This section describes fusing characteristics for the following modules:

•1746-OBP16

•1746-OVP16

•1746-OAP12

Beveled Edge

Removable

Terminal

Block

Terminal Wiring

Max 2mm2(14 AWG).

Max 2 wires per terminal.

Max torque: 0.9 Nm (8 lb-in).

Upper Retaining Screw Max Torque

= 0.6 Nm (5.3 lb-in)

Module Color Bar

Lower Retaining Screw Max

Torque = 0.6 Nm (5.3 lb-in)

Octal Door Label

1746-xxxx 1746-xxxx (OCTAL)

Octal Filter Label

OCTAL

Digital I/O Modules 9

Publication 1746-IN027C-EN-P - August 2008

Fuse Protection (1746-OBP16 and 1746-OVP16 modules)

The fuse on the 1746-OBP16 and 1746-OVP16 modules (shown on page 10)

provides short-circuit protection for 13 mm2(16 AWG) or larger wiring to external

loads. In the event of a short circuit on an output channel, it is likely that the

transistor associated with that channel will be damaged. In this event the module

should be replaced or the load moved to a spare output channel.

The fuse does not provide overload protection. In the event of an overload on an

output channel, it is likely that the fuse will not blow and the transistor associated

with that channel will be damaged. To provide overload protection for your

application, user-supplied fuses should be installed externally and properly sized to

match your individual load characteristics.

Fuse Protection (1746-OAP12 modules)

A fuse is provided on each common of the 1746-OAP12 module (shown on page

11) for a total of two fuses. The fuses are designed to protect the module from

short-circuit conditions. The fuse does not provide overload protection. In the event

of an overload on an output channel, it is likely that the fuse will not blow and the

output device associated with that channel will be damaged. To provide overload

protection for your application, user-supplied fuses should be installed externally.

The recommended fuse for overload protection is SAN-O HT. Select the fuse rating

according to your load. Do not use HT fuses rated higher than 2.0 Amps.

Blown Fuse Diagnostics

If the fuse blows on the 1746-OBP16, 1746-OVP16, or 1746-OAP12 module, the

following occurs:

•The blown fuse LED indicator will illuminate, provided power (5V dc via

backplane and load power via external supply) is applied to the module.

•A processor error will occur if JP1 connects pins 2 and 3. (See figures on

page 10 and page 11.)

10 Digital I/O Modules

Publication 1746-IN027C-EN-P - August 2008

Location of Jumpers and Fuses for 1746-OBP16 and 1746-OVP16 Modules

Location for 1746-OBP16 Fuse (F1)

Jumper for Processor

Notification (JP1) Left Side View

Location for 1746-OVP16 Fuse (F1) WHEN FUSE OPENS

PROCESSOR

CONTINUES

PROCESSOR

FAULTS

REPLACEMENT FUSE:

LITTELFUSE 322010 or 332010

A-B CAT. NO. 1746-F8

Blown Fuse LED

Indicator

Jumper Settings and

Fuse Replacement

Information

JP1

OUTPUT 1

JP1

Front View

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