Rockwell Automation 1753-OB16 Installation Instructions

Installation Instructions

GuardPLC Digital Output Module

Catalog Number 1753-OB16

Top ic Pa ge

Important User Information 2
About the Module 3
General Safety 3
Install the Module 4
Mount the Module 5
Ground the Module 5
Wire the Module 6
Make Connections for Safety-Related

Communication
Reset Push Button 9
Status Indicators 10
Specifications 11
Additional Resources 14

9

2 GuardPLC Digital Output Module

Important User Information

Solid-state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication

SGI-1.1

available from your local Rockwell Automation sales office or online at

http://www.rockwellautomation.com/literature/

equipment and hard-wired electromechanical devices. Because of this difference, and also because of the
wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must
satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot
assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

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.
Attentions help you identify a hazard, avoid a hazard and recognize the
consequences.

) describes some important differences between solid-state

SHOCK HAZARD: Labels may be on or inside the equipment, for example,
drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example,
drive or motor, to alert people that surfaces may reach dangerous
temperatures.

IMPORTANT

Identifies information that is critical for successful application and
understanding of the product.

Rockwell Automation Publication 1753-IN005B-EN-P - June 2010

GuardPLC Digital Output Module 3

About the Module

The 1753-OB16 digital output module is a 16-channel output module for use with
GuardPLC controllers.

Voltage Supply Connection

Digital

Outputs

Voltage Supply

Connection

Digital

Outputs

Ethernet Ports

(on bottom of controller)

Digital

Outputs

General Safety

ATTENTION: Personnel responsible for the application of safety-related

programmable electronic systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in using the
system.

Preventing Electrostatic Discharge

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 static potential.

• Wear an approved wrist-strap grounding device.

• Do not touch connectors or pins on component boards.

• Do not touch circuit components inside the equipment.

• Use a static-safe workstation, if available.

• Store the equipment in appropriate static-safe packaging when not in use.

Digital

Outputs

Rockwell Automation Publication 1753-IN005B-EN-P - June 2010

4 GuardPLC Digital Output Module

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 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according
to IEC/CISPR 11. Without appropriate precautions, there may be difficulties
with electromagnetic compatibility in residential and other environments due
to conducted as well as radiated disturbances.

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 enclosure must have
suitable flame-retardant properties to prevent or minimize the spread of flame,
complying with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if
non-metallic. 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.

In addition to this publication, see:

• Industrial Automation Wiring and Grounding Guidelines, Rockwell

Automation publication 1770-4.1

• NEMA 250 and IEC 60529, as applicable, for explanations of the degrees of

protection provided by different types of enclosure.

, for additional installation requirements.

Install the Module

Follow these steps to install the module.

1. Mount the module to a DIN rail.

2. Ground the module.

3. Wire the module.

4. Make connections for safety-related communication.

This publication describes these steps in detail.

Rockwell Automation Publication 1753-IN005B-EN-P - June 2010

Mount the Module

GuardPLC Digital Output Module 5

IMPORTANT

For effective cooling, mount the module following these guidelines.

• Mount the module horizontally.

• Provide a gap of at least 100 mm (3.94 in.) above and below the module.

• Select a location where air flows freely or use an additional fan.

• Do not mount the module over a heating device.

The module cannot be panel-mounted. Mount the module to a DIN rail by following these
steps.

1. Hook the top slot over the DIN rail.

2. Insert a flathead screwdriver into the gap

between the housing and the latch and pull
the latch downward.

3. Hold the latch down as you push the housing
back onto the DIN rail.

4. Release the latch to lock the module onto the
rail.

TIP

To remove the module from the DIN rail, insert a flathead screwdriver into
the gap between the housing and the latch and pull the latch downward as
you lift the module off of the rail.

(3)

(2)

(1) Top Slot

DIN Rail

Latch

Ground the Module

The module is functionally grounded through its DIN rail connection. A protective earth
ground connection is required and is provided through a separate grounding screw on the upper

left of the housing and marked with the grounding symbol .

You must also provide an acceptable grounding path for each device in your application. For
more information on proper grounding guidelines, refer to the Industrial Automation Wiring
and Grounding Guidelines, publication 1770-4.1

ATTENTION: This product is grounded through the DIN rail to chassis ground.
Use zinc-plated yellow-chromate steel DIN rail to assure proper grounding. The
use of other DIN rail materials (for example, aluminum or plastic) that can
corrode, oxidize, or are poor conductors, can result in improper or intermittent
grounding. Secure DIN rail to mounting surface approximately every 200 mm
(7.8 in.) and use end-anchors appropriately.

Rockwell Automation Publication 1753-IN005B-EN-P - June 2010

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