Rockwell Automation 1769-OV32T User Manual
Installation Instructions
Compact 32-point Solid-state 24V dc Sink Output
Module
Catalog Number 1769-OV32T
Use this document as a guide when installing a Compact 32-point solid-state 24V dc sink
output module.
Topic Page
Important User Information 2
Module Description 3
Module Installation 4
System Assembly 5
Mounting Expansion I/O 6
Replacing a Single Module within a System 8
Field Wiring Connections 9
I/O Memory Mapping 14
1769-OV32T Configuration File 15
Spare/Replacement Module Parts 16
Specifications 17
Hazardous Location Considerations 20
For More Information 21
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2 Compact 32-point Solid-state 24V dc Sink Output Module
WARNING
ATTENTION
IMPORTANT
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 Rockwell Automation 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, Rockwell Automation 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 Rockwell Automation 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.
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:
Publication 1769-IN073B-EN-P - September 2005
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.
Identifies information about practices or circumstances that can lead to personal injury
or death, property damage, or economic loss.
Identifies information that is critical for successful application and understanding of the
product.
Module Description
31563A-M
1769-OV32T
+VDC1
+VDC1
DC COM 1 DC COM 2
DC COM 2 DC COM 1
OUT 0
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
OUT 8
OUT 9
OUT 10
OUT 11
OUT 12
OUT 13
OUT 14
OUT 15
+VDC2
+VDC2
OUT 16
OUT 17
OUT 18
OUT 19
OUT 20
OUT 21
OUT 22
OUT 23
OUT 24
OUT 25
OUT 26
OUT 27
OUT 28
OUT 29
OUT 30
OUT 31
1
2a
3
4
10
2b
8a
7a 7a
5a
9
7b 7b
8b
5b
6
Compact 32-point Solid-state 24V dc Sink Output Module 3
Item Description
1 bus lever
(with locking function)
2a upper panel mounting tab
2b lower panel mounting tab
3 I/O diagnostic LEDs
4 module door with terminal
identification label
5a movable bus connector
with female pins
5b stationary bus connector
with male pins
6 nameplate label
7a upper
tongue-and-groove slots
7b lower
tongue-and-groove slots
8a upper DIN rail latch
8b lower DIN rail latch
9 write-on label (user ID tag)
10 MIL-C-83503 connector
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4 Compact 32-point Solid-state 24V dc Sink Output Module
ATTENTION
ATTENTION
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
(2)
II
(IEC 60664-1).
(3)
Prevent Electrostatic Discharge
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch bus connector pins. 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.
(1)
) and to circuits not exceeding Over Voltage Category
Remove Power
(1)
(2)
(3)
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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.
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.
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.
Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.
Compact 32-point Solid-state 24V dc Sink Output Module 5
ATTENTION
1
1
2
6
5
4
3
30536-M
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 8. 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.
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 screw driver.
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.
When attaching I/O modules, it is very important that the bus
connectors are securely locked together to ensure proper
electrical connection.
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6 Compact 32-point Solid-state 24V dc Sink Output Module
IMPORTANT
ATTENTION
Controller
Compact I/O
Compact I/O
Compact I/O
Compact I/O
Compact I/O
End Cap
To p
Bottom
Side Side
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).
A 1769-ECR or 1769-ECL right or left end cap must be used to
terminate the end of the serial communication bus.
Mounting Expansion I/O
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.
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.
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Compact 32-point Solid-state 24V dc Sink Output Module 7
TIP
Host Controller
Spacing for single-wide modules 35 mm (1.378 in.)
Refer to host controller documentation for this dimension.
Note: Overall hole spacing
tolerance: ±0.4 mm (0.016 in.).
Spacing for one-and-a half-wide modules 52.5 mm (2.067 in.)
Panel Mounting Using the Dimensional Template
Locate holes every 17.5 mm (0.689 in.) to allow for a mix of single-wide and
one-and-a-half-wide modules (e.g. 1769-OA16).
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
important to follow these procedures:
page 7. Due to module mounting hole tolerance, it is
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.
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.
7. Repeat steps 1 to 6 for any remaining modules.
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8 Compact 32-point Solid-state 24V dc Sink Output Module
TIP
DIN Rail Mounting
The module can be mounted using these 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.
Replacing a Single Module within a System
The module can be replaced while the system is mounted to a panel (or DIN rail).
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 screw driver).
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).
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.
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).
Publication 1769-IN073B-EN-P - September 2005
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