Allen-Bradley ControlLogix 1756-IF4FXOF2F Bedienungsanleitung

Publication 1756-IN004A-EN-P - February 2002

Installation Instructions

ControlLogix

High Speed Analog I/O Module

Catalog Number 1756-IF4FXOF2F

Obtain a User Manual

This product also has a user manual (pub. no. 1756-UM005). To view

it, visit www.ab.com/manuals or www.theautomationbookstore.com.

To purchase a manual, you can:

•contact your distributor or Rockwell Automation representative

•visit www.theautomationbookstore.com and place an order

•call 800.963.9548 (USA/Canada) or 001.320.725.1574 (outside

USA/Canada)

To: See page:

Obtain a User Manual 1

Identify the ModuleComponents 6

Prevent Electrostatic Discharge 5

Note the Power Requirements 7

Install the Module 7

Key the Removable Terminal Block/Interface Module 8

Wire the Module 11

Assemble the Removable Terminal Block and the Housing 13

Install the Removable TerminalBlock onto the Module 13

Checkthe Indicators 14

Remove the Removable Terminal Block from the Module 15

Remove the Module 15

See 1756-IF4FXOF2FSpecifications 16

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2ControlLogix High Speed Analog I/O Module

Publication 1756-IN004A-EN-P - February 2002

Important User Information

Because of the variety of uses for the products described in this

publication, those responsible for the application and use of these

products 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. In no event will Allen-Bradley be responsible

or liable for indirect or consequential damage resulting from the use

or application of these products.

Any illustrations, charts, sample programs, and layout examples

shown in this publication 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 copyrighted publication, in

whole or part, without written permission of Rockwell Automation, is

prohibited.

ControlLogix High Speed Analog I/O Module 3

Publication 1756-IN004A-EN-P - February 2002

Throughout this publication, notes may be used to make you aware

of safety considerations. The following annotations and their

accompanying statements help you to identify a potential hazard,

avoid a potential hazard, and recognize the consequences of a

potential hazard:

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.

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.

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4ControlLogix High Speed Analog I/O Module

Publication 1756-IN004A-EN-P - February 2002

Environment and Enclosure

ATTENTION

This equipment is intended for use in a Pollution

Degree 2 industrial environment, in overvoltage

Category II applications (as defined in IEC

publication 60664-1), at altitudes up to 2000 meters

without derating.

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.

See NEMA Standards publication 250 and IEC

publication 60529, as applicable, for explanations

of the degrees of protection provided by different

types of enclosure. Also, see the appropriate

sections in this publication, as well as the

Allen-Bradley publication 1770-4.1 ("Industrial

Automation Wiring and Grounding Guidelines"),

for additional installation requirements pertaining

to this equipment.

ControlLogix High Speed Analog I/O Module 5

Publication 1756-IN004A-EN-P - February 2002

Prevent Electrostatic Discharge

Removal and Insertion Under Power

ATTENTION

This equipment is sensitive to electrostatic

discharge, which can cause internal damage and

affect normal operation. Follow these guidelines

when you handle this equipment:

•Touch a grounded object to discharge

potential static.

•Wear an approved grounding wriststrap.

•Do not touch connectors or pins on

component boards.

•Do not touch circuit components inside the

equipment.

•If available, use a static-safe workstation.

•When not in use, store the equipment in

appropriate static-safe packaging.

WARNING

When you insert or remove the module 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.

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6ControlLogix High Speed Analog I/O Module

Publication 1756-IN004A-EN-P - February 2002

Identify the Module Components

You received the following components with your order:

•1756-IF4FXOF2F module

•Removable Terminal Block (RTB) door label

If you did not receive these components, contact your local

distributor Rockwell Automation sales office.

This module mounts in a ControlLogixchassis and uses a

separately-ordered RTB or a Bulletin 1492 Interface Module (IFM) to

connect all field-side wiring.

This module uses one of the following RTBs:

•1756-TBCH 36 position Cage clamp RTB

•1756-TBS6H 36 position Spring clamp RTB

Use an extended-depth cover (1756-TBE) for applications with heavy

gauge wiring or requiring additional routing space. When using an

IFM, consult the documentation that came with it to connect

all wiring.

IMPORTANT Before you install your module, you should

have already:

•installed and grounded a 1756 chassis and

power supply.

•ordered and received an RTB or IFM and its

components for your application.

ControlLogix High Speed Analog I/O Module 7

Publication 1756-IN004A-EN-P - February 2002

Note the Power Requirements

This module receives power from the 1756 chasis power supply and

requires 2 sources of power from the backplane:

•375mA at 5.1V dc

•100mA at 24V dc

Add this current/power value (4.3W) to the requirements of all other

modules in the chassis to prevent overloading the power supply.

Install the Module

You can install or remove the module while chassis power is applied.

WARNING

When you insert or remove the module 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.

20861–M 20862–M

1. Align circuit board with top and

bottom chassis guides. 2. Slide module into chassis until

module locking tabs ‘click’.

Printed

Circuit

Board

Locking tab

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8ControlLogix High Speed Analog I/O Module

Publication 1756-IN004A-EN-P - February 2002

Key the Removable Terminal Block/Interface Module

Use the wedge-shaped keying tabs and U-shaped keying bands to

prevent connecting the wrong wires to your module.

Key positions on the module that correspond to unkeyed positions

on the RTB. For example, if you key the first position on the module,

leave the first position on the RTB unkeyed.

Reposition the tabs to rekey future module applications.

Wire the Removable Terminal Block

Wire the RTB with a 1/8 inch (3.2mm) maximum flat-bladed

screwdriver before installing it onto the module. Shielded cable is

required when using this module.

We recommend using Belden 8761 cable to wire the RTB. The RTB

terminations can accommodate 14-22 gauge shielded wire.

WARNING

When you connect or disconnect the Removable

Terminal Block (RTB) with field side power

applied, an electrical arc can occur. This could

cause an explosion in hazardous location

installations. Make sure that power is removed or

the area is nonhazardous before proceeding.

20850–M

1. Insert the U-shaped bandas shown.

2. Push the banduntil it snaps in place.

U-shaped

bands

1. Insert the wedge-shaped tab with rounded edge first.

2. Push thetab until it stops.

20851–M

Wedge-shaped tab

Key the Module Key the RTB/IFM

ControlLogix High Speed Analog I/O Module 9

Publication 1756-IN004A-EN-P - February 2002

Connect grounded endof the cable

Ground one end of the cable only. Follow the steps below.

1. Prepare one end of the cable for grounding.

2. Ground the drain wire. We recommend grounding the drain

wire at the field device as shown below.

3. Connect the insulated wires to the field device.

If you cannot ground at the field device, follow these steps:

1. Prepare one end of the cable as shown in step 1.

2. Ground at an earth ground on the chassis as shown below.

3. Connect the insulated wires to the RTB.

a. Removea length

of cable jacket

from the

connecting cable.

b. Pullthefoilshield

and bare drain

wire from the

insulated wire.

c. Twistthefoilshield

and drain wire

together to form a

single strand.

d. Attachagroundlug

and apply heat

shrinktubingtothe

exit area.

20104-M

Field

Device

Drain wire

43183

20918-M

Connect the drain wire to a

chassis mounting tab.

Use any chassis mounting tab

that isdesignated asa

functional signal ground.

Chassis mounting tab

Drain wire with ground lug

4M or 5M (#10 or #12)

phillips screw and star

washer (or SEM screw)

4M or 5M (#10 or #12)

star washer

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10 ControlLogix High Speed Analog I/O Module

Publication 1756-IN004A-EN-P - February 2002

Connect ungrounded endof the cable

1. Prepare the non-grounded end of the cable.

2. Connect the insulated wires to:

•the RTB (as shown below) if the cable is grounded at the

field device.

•the field device if the cable is grounded at the chassis.

a. Remove a length

of cable jacket

from the

connecting cable.

b. Pullthefoilshield

and bare drain

wire from the

insulated wire.

c. Cutthefoilshieldanddrain

wire back to the cable

casing and apply shrink

wrap, exposing only the

insulated wires.

43182

Spring Clamp RTB Cage Clamp RTB

20860-M 20859-M

A. Strip 7/16 inch (11mm) maximumlength

of wire.

B. Insert thescrewdriver into the inner hole

of the RTB.

C. Insert the wire intothe open

terminal and remove the

screwdriver.

A. Strip 3/8 inch (9.5mm) maximumlength

of wire.

B. Insert the wire into the open terminal.

C. Turn the screw clockwise to close the

terminal on the wire.

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