Allen-Bradley Series B User manual

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
10
2b
3
2a
1
5a
95b
6
7a
7b
8b
7b
8a
7a
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
dc
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
OK
Analog
OK
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.
6
5
4
3
1
1
2

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 Compact I/O Compact I/O Compact I/O Compact I/O
End Cap
Host Controller
Compact I/O Compact I/O Compact I/O
End Cap
132 (5.197)
122.6±0.2
(4.826±0.008)
35
(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