Allen-Bradley SLC 500 1747-L20 Bedienungsanleitung

Installation Instructions

SLC 500™ Fixed Hardware Style

Controllers

(Catalog Numbers 1747-L20, 1747-L30, and 1747-L40)

Inside… page

English Section....................................................................................... 3

Section en français............................................................................... 23

Deutscher Abschnitt............................................................................. 43

Sezione italiana.................................................................................... 63

Sección en español............................................................................... 83

Physical Dimensions........................................................................... 103

Wiring Diagrams................................................................................. 104

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Publication 1747-IN008B-MU-P

Installation Instructions

English Section

SLC 500™ Fixed Hardware Style

Controllers

(Catalog Numbers 1747-L20, 1747-L30, and 1747-L40)

Inside… page

Important User Information .................................................................... 4

For More Information.............................................................................. 5

Safety Considerations............................................................................. 6

Controller Spacing .................................................................................. 7

Mounting the 2-Slot Expansion Chassis (Optional)................................ 7

Mounting Your Controller ....................................................................... 8

Configuring the High-Speed Counter...................................................... 9

Grounding Your Controller .................................................................... 10

Wiring Your Controller .......................................................................... 11

Understanding LED Messages.............................................................. 12

Configuration Options........................................................................... 15

Specifications ....................................................................................... 16

Using Surge Suppressors...................................................................... 19

Physical Dimensions ........................................................................... 103

Wiring Diagrams................................................................................. 104

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Important User Information

Because of the variety of uses for the products described in this publication, those

responsible for the application and use of this control equipment must satisfy

themselves that all necessary steps have been taken to assure that each application

and use meets all performance and safety requirements, including any applicable

laws, regulations, codes, and standards.

The illustrations, charts, sample programs, and layout examples shown in this guide

are intended solely for purposes of example. Since there are many variables and

requirements associated with any particular installation, Allen-Bradley does not

assume responsibility or liability (to include intellectual property liability) for actual

use based upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application, Installation,

and Maintenance of Solid-State Control (available from your local Allen-Bradley

office), describes some important differences between solid-state equipment and

electromechanical devices that should be taken into consideration when applying

products such as those described in this publication.

Reproduction of the contents of this publication, in whole or in part, without

written permission of the Allen-Bradley Company is prohibited.

Throughout these installation instructions we use notes to make you aware of safety

considerations:

Attention statements help you to:

•identifyahazard

•avoidthehazard

• recognize the consequences

ATTENTION

Identifies information about practices or circumstances that can

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.

SLC 500™ Fixed Hardware Style Controllers 5

Publication 1747-IN008B-MU-P

For More Information

As part of our effort to preserve, protect, and improve our environment,

Allen-Bradley is reducing the amount of paper we use. Less paper means more

options for you. In addition to traditional printed publications and CD-ROM

versions, we now offer on-line manuals with the most up-to-date information

available. We recommend that you read the related publications listed below before

starting up your control system.

Related Publications

If you would like a manual, you can:

• download a free electronic version from the internet at

www.theautomationbookstore.com

• purchase a printed manual by:

– contacting your local distributor or Rockwell Automation representative

– visiting www.theautomationbookstore.com and placing your order

– calling 1.800.963.9548 (USA/Canada or 001.330.725.1574 (Outside

USA/Canada)

For Refer to this Document Pub. No.

A more detailed description on how to install

and use your fixed SLC 500 system.

SLC 500 Fixed Hardware

Style Installation and

Operation Manual

1747-6.21

A reference manual that contains status file

data, instruction set, and troubleshooting

information.

SLC 500 and MicroLogix

1000 Instruction Set

Reference Manual

1747-6.15

A CD-ROM containing both of the manuals

listed above, plus the:

• SLC 500 Modular Hardware Style

Installation and Operation Manual

• SLC 500 Analog I/O Modules User Manual

• Discrete I/O Modules Installation

Instructions

• Discrete I/O Modules Product Data

SLC 500 Literature

Collection on CD-ROM

1747-CD1-1

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6SLC 500™ Fixed Hardware Style Controllers

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Safety Considerations

High Voltages -

SLC 500 Fixed Hardware Style Controller (Series C)

(Applies to 1747-L20A, -L30A, -L40A, -L20C, -L30C, and -L40C

controllers)

For general recommendations concerning installation safety requirements and safety

related work practices, refer to the requirements specific to your region.

•Europe: Reference the standards found in EN 60204 and your national

regulations.

•United States: Refer to NFPA 70E, Electrical Safety Requirements for Employee

Workplaces.

ATTENTION The printed circuit board, located under the front cover of Series

C fixed hardware style controllers, has high voltages (120V ac

and 240V ac) available at certain points when the controller is

powered up. If the front cover is removed, exercise extreme care

and consider all points on the circuit board to be electrically

hazardous. Whenever possible, turn off power to the controller

before removing the cover.

Do not remove the protective insulation covering the circuit

board. If the insulation is missing, do not touch any portion of

the circuit board. Failure to heed this warning may result in

personal injury or death.

Front Cover

SLC 500™ Fixed Hardware Style Controllers 7

Publication 1747-IN008B-MU-P

Controller Spacing

Follow the recommended controller orientation and minimum spacing shown below

to allow for convection cooling within the enclosure. Air in the enclosure must be

kept within the range of 0°C to +60°C (+32°F to +140°F).

Mounting the 2-Slot Expansion Chassis (Optional)

The expansion chassis mounts on the right side of the fixed controller.

1. Align the mounting inserts of the expansion chassis with the mounting slots of

the controller. Slide the expansion chassis forward until the back of the expansion

chassis is flush with the fixed controller and the connector on the expansion

circuit board is mated with the connector in the controller.

TOP

SIDESIDE

BOTTOM

A. Greater than 101.6 mm (4 in.)

B. Greater than 152.4 mm (6 in.)

Enclosure

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2. To install additional I/O and specialty I/O modules, gently slide the module in

until the top and bottom retainer clips are secured.

Mounting Your Controller

You can mount the fixed hardware style unit directly to the back panel of your

enclosure using the mounting tabs and #10 and #12 screws. The maximum torque

requirement is 3.4 N-m (30 in-lbs).

To install your controller using mounting screws:

1. Position your controller on the mounting

surface. (Make sure the controller is spaced

properly. See page 7 for further information.)

2. Mark the positions of the mounting tabs and

drill the appropriate holes.

3. Mount your controller.

ATTENTION Be careful of metal chips when drilling mounting holes for your

controller. Metal chips or clippings may short circuit electronic

components of the controller and cause damage.

Capacitors on input modules have a stored charge that can cause

a non-lethal shock. Avoid mounting the controller in a position

where installation or service personnel would be in danger from a

startle reaction.

Retainer clip

Mounting Tabs

SLC 500™ Fixed Hardware Style Controllers 9

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Configuring the High-Speed Counter

The fixed controllers that have 24V dc input circuits are also equipped with a

high-speed counter. For high-speed counter use, follow the procedure below:

1. Turn off power to the fixed controller.

2. Remove the SLC 500 cover.

3. Locate and cut jumper wire J2. The jumper is either beneath or to the right of the

battery connector. Do not remove the jumper wire completely, but make certain

that the ends of the cut jumper wire are not touching each other.

ATTENTION

When power is applied to the controller, hazardous electrical

potentials exist under the front cover. See page 6 for further

information.

J2 J2

Power

Fuse

The High-Speed Counter jumper is located either beneath the battery connector OR to

the right of the battery connector.

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Grounding Your Controller

In solid-state control systems, grounding helps limit the effects of noise due to

electromagnetic interference (EMI). Run the ground connection from the ground

screw of the controller (first screw from the left on the lower input terminal rung) to

the ground bus.

You must also provide an acceptable grounding path for each device in your

application. Exact connections will differ between applications. For more

information on proper grounding guidelines, refer to Industrial Automation Wiring

and Grounding Guidelines, Publication Number 1770-4.1 or the requirements

specific to your region:

•Europe: Reference the standards found in EN 60204 and your national

regulations.

•United States: Refer to NFPA 70E, Electrical Safety Requirements for Employee

Workplaces.

ATTENTION

The SLC 500 controller, other control devices, and the enclosure

must be properly grounded. All applicable codes and ordinances

must be observed when wiring the controller system.

SLC 500 Controller Only

#14 AWG

Wire

#10 AWG

Wire

#8 AWG

Wire

#8 AWG

Wire

#10 AWG

Wire

#14 AWG

Wire

SLC 500 Controller with 2-Slot Expansion Chassis

Chassis Mounting Tabs

Earth

Ground

Earth

Ground

Bus

Ground

Bus

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