Allen-Bradley Series B Bedienungsanleitung

Publication 1769-IN048A-EN-P

Installation Instructions

Compact™ 1769-IF4 (Series B or

Later) Analog Input Module

Inside

Module Description ..................................................................................2

Module Installation...................................................................................3

System Assembly......................................................................................4

Mounting Expansion I/O...........................................................................6

Replacing a Single Module within a System ...........................................8

Module Spare/Replacement Parts ...........................................................8

Field Wiring Connections..........................................................................9

I/O Memory Mapping .............................................................................15

Specifications .........................................................................................17

Hazardous Location Considerations .......................................................20

Environnements dangereux ....................................................................20

For More Information..............................................................................21

2Compact™ 1769-IF4 (Series B or Later) Analog Input Module

Publication 1769-IN048A-EN-P

Module Description

Item Description

1bus lever

(with locking function)

2a upper panel mounting tab

2b lower panel mounting tab

3module status LED

4module door with terminal

identification label

5a movable bus connector

with female pins

5b stationary bus connector

with male pins

6nameplate label

7a upper

tongue-and-groove slots

7b lower

tongue-and-groove slots

8a upper DIN rail latch

8b lower DIN rail latch

9write-on label (user ID tag)

10 removable terminal block

(RTB) with finger-safe cover

10a RTB upper retaining screw

10b RTB lower retaining screw

10a

10b 4

95b

1769-IF4

DANGER

Do Not Remove RTB Under Power

Unless Area is Non-Hazardous

Ensure Adjacent

Bus Lever is Unlatched/Latched

Before/After

Removing/Inserting Module

ANLG

Com

V/I in 3 -

+24Vdc

NEUT

V/I in 1 -

V/I in 2 -

ANGL

Com

ANGL

Com

V/I in 0 - Vin 0 +

Vin 1 +

Vin 2 +

Vin 3 +

I in 0+

I in 1+

I in 2+

I in 3+

ANLG

Com

Analog

Compact™ 1769-IF4 (Series B or Later) Analog Input Module 3

Publication 1769-IN048A-EN-P

Module Installation

Compact I/O is suitable for use in an industrial environment when installed

in accordance with these instructions. Specifically, this equipment is

intended for use in clean, dry environments (Pollution degree 2(1)) and to

circuits not exceeding Over Voltage Category II(2) (IEC 60664-1).(3)

Prevent Electrostatic Discharge

(1) Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that

occasionally a temporary conductivity caused by condensation shall be expected.

(2) Over Voltage Category II is the load level section of the electrical distribution system. At this level transient

voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.

(3) Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC)

designations.

ATTENTION Electrostatic discharge can damage integrated circuits or

semiconductors if you touch bus connector pins or the

terminal block. Follow these guidelines when you handle

the module:

• Touch a grounded object to discharge static potential.

• Wear an approved wrist-strap grounding device.

• Do not touch the bus connector or connector pins.

• Do not touch circuit components inside the module.

• If available, use a static-safe work station.

• When not in use, keep the module in its static-shield

box.

4Compact™ 1769-IF4 (Series B or Later) Analog Input Module

Publication 1769-IN048A-EN-P

Remove Power

System Assembly

The module can be attached to the controller or an adjacent I/O module

before or after mounting. For mounting instructions, see “Panel Mounting”

on page 6, or “DIN Rail Mounting” on page 7. To work with a system that

is already mounted, see “Replacing a Single Module within a System” on

page 8.

The following procedure shows you how to assemble the Compact I/O

system.

ATTENTION Remove power before removing or inserting this module.

When you remove or insert a module with 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

Electrical arcing causes excessive wear to contacts on

both the module and its mating connector. Worn contacts

may create electrical resistance.

Compact™ 1769-IF4 (Series B or Later) Analog Input Module 5

Publication 1769-IN048A-EN-P

1. Disconnect power.

2. Check that the bus lever of the module to be installed is in the unlocked

(fully right) position.

3. Use the upper and lower tongue-and-groove slots (1) to secure the

modules together (or to a controller).

4. Move the module back along the tongue-and-groove slots until the bus

connectors (2) line up with each other.

5. Push the bus lever back slightly to clear the positioning tab (3). Use your

fingers or a small screwdriver.

6. To allow communication between the controller and module, move the

bus lever fully to the left (4) until it clicks. Ensure it is locked firmly in

place.

7. Attach an end cap terminator (5) to the last module in the system by

using the tongue-and-groove slots as before.

8. Lock the end cap bus terminator (6).

ATTENTION

When attaching I/O modules, it is very important that the

bus connectors are securely locked together to ensure

proper electrical connection.

IMPORTANT A 1769-ECR or 1769-ECL right or left end cap must be

used to terminate the end of the communication bus.

6Compact™ 1769-IF4 (Series B or Later) Analog Input Module

Publication 1769-IN048A-EN-P

Mounting Expansion I/O

Minimum Spacing

Maintain spacing from

enclosure walls,

wireways, adjacent

equipment, etc. Allow

50 mm (2 in.) of space

on all sides for

adequate ventilation, as

shown:

Panel Mounting

Mount the module to a panel using two screws per module. Use M4 or #8

panhead screws. Mounting screws are required on every module.

Panel Mounting Using the Dimensional Template

ATTENTION During panel or DIN rail mounting of all devices, be sure

that all debris (metal chips, wire strands, etc.) is kept

from falling into the module. Debris that falls into the

module could cause damage on power up.

Top

Bottom

Side Side

Host Controller

Compact I/O

End Cap

Host Controller

Compact I/O

End Cap

132 (5.197)

122.6±0.2

(4.826±0.008)

(1.38)

28.5

(1.12)

Refer to host controller documentation for this dimension.

For more than 2 modules: (number of modules-1) X 35mm (1.38 in.)

NOTE: All dimensions are in mm (inches).

Hole spacing tolerance: ±0.4 mm (0.016 in.)

Compact™ 1769-IF4 (Series B or Later) Analog Input Module 7

Publication 1769-IN048A-EN-P

Panel Mounting Procedure Using Modules as a Template

The following procedure allows you to use the assembled modules as a

template for drilling holes in the panel. If you have sophisticated panel

mounting equipment, you can use the dimensional template provided on

page 6. Due to module mounting hole tolerance, it is important to follow

these procedures:

1. On a clean work surface, assemble no more than three modules.

2. Using the assembled modules as a template, carefully mark the center of

all module-mounting holes on the panel.

3. Return the assembled modules to the clean work surface, including any

previously mounted modules.

4. Drill and tap the mounting holes for the recommended M4 or #8 screw.

5. Place the modules back on the panel and check for proper hole

alignment.

6. Attach the modules to the panel using the mounting screws.

7. Repeat steps 1 to 6 for any remaining modules.

DIN Rail Mounting

The module can be mounted using the following DIN rails: 35 x 7.5 mm

(EN 50 022 - 35 x 7.5) or 35 x 15 mm (EN 50 022 - 35 x 15).

Before mounting the module on a DIN rail, close the DIN rail latches. Press

the DIN rail mounting area of the module against the DIN rail. The latches

will momentarily open and lock into place.

NOTE If mounting more modules, mount only the last one of

this group and put the others aside. This reduces

remounting time during drilling and tapping of the next

group.

8Compact™ 1769-IF4 (Series B or Later) Analog Input Module

Publication 1769-IN048A-EN-P

Replacing a Single Module within a System

The module can be replaced while the system is mounted to a panel (or

DIN rail). Follow these steps in order:

1. Remove power. See important note on page 4.

2. On the module to be removed, remove the upper and lower mounting

screws from the module (or open the DIN latches using a flat-blade or

phillips-style screwdriver).

3. Move the bus lever to the right to disconnect (unlock) the bus.

4. On the right-side adjacent module, move its bus lever to the right

(unlock) to disconnect it from the module to be removed.

5. Gently slide the disconnected module forward. If you feel excessive

resistance, check that the module has been disconnected from the bus

and that both mounting screws have been removed (or DIN latches

opened).

6. Before installing the replacement module, be sure that the bus lever on

the module to be installed, and on the right-side adjacent module are in

the unlocked (fully right) position.

7. Slide the replacement module into the open slot.

8. Connect the modules together by locking (fully left) the bus levers on

the replacement module and the right-side adjacent module.

9. Replace the mounting screws (or snap the module onto the DIN rail).

Module Spare/Replacement Parts

• Terminal block, catalog number 1769-RTBN18 (1 per kit)

• Door Labels, catalog number 1769-RL2 Series B (2 per kit)

• Door, catalog number 1769-RD (2 per kit)

NOTE It may be necessary to rock the module slightly from front

to back to remove it, or, in a panel-mounted system, to

loosen the screws of adjacent modules.

Compact™ 1769-IF4 (Series B or Later) Analog Input Module 9

Publication 1769-IN048A-EN-P

Field Wiring Connections

Grounding the Module

This product is intended to be mounted to a well-grounded mounting

surface such as a metal panel. Additional grounding connections from the

module’s mounting tabs or DIN rail (if used), are not required unless the

mounting surface cannot be grounded. Refer to Industrial Automation

Wiring and Grounding Guidelines, Allen-Bradley publication 1770-4.1, for

additional information.

System Wiring Guidelines

Consider the following when wiring your system:

• All module commons (ANLG COM) are connected in the analog module.

The analog common (ANLG COM) is not connected to earth ground

inside the module.

• Do not use the analog module’s NC terminals as connection points.

• Channels are not isolated from each other.

• Use Belden™ 8761, or equivalent, shielded wire.

• Under normal conditions, the drain wire and shield junction must be

connected to earth ground via a panel or DIN rail mounting screw at the

analog I/O module end. Keep the shield connection to ground as short

as possible.(1)

• To ensure optimum accuracy, limit overall cable impedance by keeping

your cable as short as possible. Locate the I/O system as close to your

sensors or actuators as your application will permit.

• If multiple power supplies are used with analog inputs, the power

supply commons must be connected.

(1) In environments where high-frequency noise may be present, it may be necessary to directly ground cable

shields to earth at the module end and via a 0.1µF capacitor at the sensor end.

10 Compact™ 1769-IF4 (Series B or Later) Analog Input Module

Publication 1769-IN048A-EN-P

• The 1769-IF4 module does not provide loop power for analog inputs.

Use a power supply that matches the input transmitter specifications.

• Differential analog inputs are more immune to noise than single-ended

analog inputs.

• Voltages on Vin+, V/Iin-, and Iin+ of the 1769-IF4 module must be

within ±10V dc of analog common.

External Power Switch

The 1769-IF4 (Series B or later) has an external 24V dc power switch which

gives you the option of using an external power supply. The switch is

located in on the lower left portion of the module’s circuit board, as shown

below. With this switch in the up position (default), 24V dc power is drawn

from the 1769 system power supply via the 1769 I/O bus. In the down

position, 24V dc power is drawn from the external power supply.

Wire the external power supply to the module via the module’s terminal

block. The external power supply must be rated Class 2, with a 24V dc

range of 20.4 to 26.4V dc and 60 mA minimum.

ATTENTION Be careful when stripping wires. Wire fragments that fall

into a module could cause damage at power up. Once

wiring is complete, ensure the module is free of all metal

fragments.

External Power Switch

Bus Power (default)

External Power

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