Rockwell Automation 1738-SSIM23 User Manual

Installation Instructions

ArmorPoint I/O Synchronous Serial Interface
(SSI) Absolute Encoder Module, Series A

(Cat. No. 1738-SSIM23)

The ArmorPoint™ I/O family (Cat. no. 1738) consists of modular I/O
modules. The sealed IP67 housing of these modules requires no
enclosure. (Note that environmental requirements other than IP67
may require an additional appropriate housing.) The I/O connector is
sealed M23 style. The mounting base ships with the module. The
1738-SSIM23 module is shown below.

1738-SSIM23

M23
Connector

1738-SSIM23/A

SSI Encoder

DOWN
COMP

MOD

NET

RUN

UP

1

LED Indicators

43814

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2 ArmorPoint I/O Synchronous Serial Interface (SSI) Absolute Encoder Module, Series A

SHOCK HAZARD

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.ab.com/manuals/gi) describes some important differences between solid state 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 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, proper ty damage,
or economic loss.

IMPORTANT

ATTENTION

BURN HAZARD

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

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

• recognize the consequence

Labels may be located on or inside the equipment to alert people that dangerous voltage
may be present.

Labels may be located on or inside the equipment to alert people that surfaces may be
dangerous temperatures.

.

Publication 1738-IN013A-EN-E - June 2004

ArmorPoint I/O Synchronous Serial Interface (SSI) Absolute Encoder Module, Series A 3

ATTENTION

Environment and Enclosure

This equipment is intended for use in overvoltage
Category II applications (as defined in IEC
publication 60664-1), at altitudes up to 2000 meters
without derating.

This equipment is considered Grou p 1, Class A
industrial equipment according to IEC/CISPR
Publication 11. Without appropriate precautions,
there may be potential difficulties ensuring
electromagnetic compatibility in other environments
due to conducted as well as radiated disturbance.

This equipment is supplied as "enclosed" equipment.
It should not require additional system enclosure
when used in locations consistent with the enclosure
type ratings stated in the Specifications section of this
publication. Subsequent sections of this publication
may contain additional information regarding
specific enclosure type ratings, beyond what this
product provides, that are required to comply with
certain product safety certifications.

NOTE: See NEMA Standards publication 250 and
IEC publication 60529, as applicable, for
explanations of the degrees of protection provided
by different types of enclosure. Also, se e the
appropriate sections in this publication, as well as
the Allen-Bradley publication 1770-4.1 ("Industrial
Automation Wiring and Grounding Guidelines"), for
additional installation requirements pertaining to this
equipment.

Publication 1738-IN013A-EN-E - June 2004

4 ArmorPoint I/O Synchronous Serial Interface (SSI) Absolute Encoder Module, Series A

1.9 in.

2.0 in.

0.87 in.

2.0 in.

0.87 in.

2.0 in.

Mount the I/O Base

ATTENTION

Preventing Electrostatic Discharge

This equipment is sensitive to electrostatic dischar ge,
which can cause internal damage and affect normal
operation. Follow these guidelines when you handle
this equipment:

• Touch a grounded object to discharge potential
static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component

boards.

• Do not touch circuit components inside the
equipment.

• If available, use a static-safe workstation.

• When not in use, store the equipment in

appropriate static-safe packaging.

To mount the ArmorPoint I/O base on a wall or panel, use the screw
holes provided in the ArmorPoint base.

Adapter

4.02 in.
102 mm

IMPORTANT

The ArmorPoint I/O module must be mounted on a
grounded metal mounting plate or other conductive
surface.

A mounting illustration for the ArmorPoint base with an adapter is
shown below.

1.81 in.
46 mm

47.2 mm

50 mm

22 mm

50 mm

22 mm

50 mm

43769

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ArmorPoint I/O Synchronous Serial Interface (SSI) Absolute Encoder Module, Series A 5

n

Mounting base

Install the mounting base as follows:

1. Lay out the required points as shown above in the drilling
dimension drawing.

2. Drill the necessary holes for #8 (M4) machine or self-tapping
screws.

3. Mount the base using #8 (M4) screws.

4. Ground the system using the ground lug connection. (The

ground lug connection is also a mounting hole.)

Keyswitch­Set to position 2 for
the 1738 specialty
modules

Ground lug connectio

43675

Latching mechanism

Publication 1738-IN013A-EN-E - June 2004