Rockwell Automation 1769-OB16 User Manual

Installation Instructions

Compact™ Solid State 24V dc Source Output Module

(Catalog Number 1769-OB16, Series B)

Inside

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

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

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

Mounting Expansion I/O.......................................................................... 5

Replacing a Single Module within a System .......................................... 7

Field Wiring Connections ......................................................................... 8

I/O Memory Mapping ............................................................................ 11

1769-OB16 Configuration File................................................................ 12

Spare/Replacement Module Parts ........................................................ 13

Specifications ........................................................................................ 14

Hazardous Location Considerations ...................................................... 18

Environnements dangereux ................................................................... 18

For More Information............................................................................. 19

Publication 1769-IN054A-EN-P - April 2001

2 Compact™ Solid State 24V dc Source Output Module

Module Description

Item Description

1 bus lever

(with locking function)

2a upper panel mounting tab

DANGER

Do Not Remo v e R TB Under P o wer

Unless Area is Non-Hazardous

10a

10b

Ensure Adjacent

Bus Leve r is Unlatched/Latched

Before/After

Remo ving/Inser ting Module

9-O

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 removable terminal block (RTB)

with finger-safe cover

10a RTB upper retaining screw

10b RTB lower retaining screw

Publication 1769-IN054A-EN-P - April 2001

Compact™ Solid State 24V dc Source Output Module 3

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 Over Voltage Category II

(2)

(IEC 60664-1).

Prevent Electrostatic Discharge

(1)

) and to circuits not exceeding

(3)

ATTENTION

Remove Power

ATTENTION

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.

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.

(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.

Publication 1769-IN054A-EN-P - April 2001

4 Compact™ Solid State 24V dc Source Output Module

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 5, 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 7.

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.

ATTENTION

When attaching I/O modules, it is very important that the bus connectors are securely locked together to ensure proper electrical connection.

Publication 1769-IN054A-EN-P - April 2001

Compact™ Solid State 24V dc Source Output Module 5

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).

IMPORTANT

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

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.

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:

Top

Side Side

Host Controller

Compact I/O

Bottom

Compact I/O

End Cap

Compact I/O

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.

Publication 1769-IN054A-EN-P - April 2001

6 Compact™ Solid State 24V dc Source Output Module

Panel Mounting Using the Dimensional Template

For more than 2 modules: (number of modules - 1) x 35 mm (1.38 in.) Refer to host controller documentation for this dimension.

Note: All dimensions are in mm (inches). Hole spacing tolerance: ±0.4 mm (0.016 in.).

132

(5.197)

(4.826±0.008)

122.6±0.2

Host Controller

(1.38)

Compact I/O

28.5

(1.12)

Compact I/O

End Cap

Compact I/O

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.

TIP

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.

Publication 1769-IN054A-EN-P - April 2001

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