Rockwell Automation 1738-IJM23 User Manual

Installation Instructions

MOD

NET

1738-IJM23/A

5V dc

Encoder/Counter

A

B

Z

LED Indicators

43808

1738-IJM23

M23
Connector

ArmorPOINT I/O 5V DC Encoder/Counter
Module, Series A

Catalog number 1738-IJM23

The ArmorPOINT® I/O family (Bulletin 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-IJM23 module is shown
below.

1 Publication 1738-IN012B-EN-E - August 2013

2 ArmorPOINT I/O 5V DC Encoder/Counter Module, Series A

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN 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.rockwellautomation.com/literature/) 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.

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 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-IN012B-EN-E - August 2013

ArmorPOINT I/O 5V DC Encoder/Counter 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 Group 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, see 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-IN012B-EN-E - August 2013

4 ArmorPOINT I/O 5V DC Encoder/Counter Module, Series A

ATTENTION

IMPORTANT

43769

4.02 in.
102 mm

1.81 in.
46 mm

Adapter

1.9 in.

47.2 mm

2.0 in.
50 mm

0.87 in.
22 mm

2.0 in.
50 mm

0.87 in.
22 mm

2.0 in.
50 mm

Preventing Electrostatic Discharge

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 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.

Mount the I/O Base

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

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.

Publication 1738-IN012B-EN-E - August 2013

ArmorPOINT I/O 5V DC Encoder/Counter Module, Series A 5

Ground lug connection

Latching mechanism

Keyswitch­Set to position 2 for
the 1738 specialty
modules

Mounting base

43675

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.)

Publication 1738-IN012B-EN-E - August 2013

6 ArmorPOINT I/O 5V DC Encoder/Counter Module, Series A

Module will bridge two bases.

43809

Install the ArmorPOINT Encoder/Counter Module

To install the ArmorPOINT Encoder/Counter module, proceed as follows.

1. Using a bladed screwdriver, rotate the keyswitch on the mounting base

clockwise until the number 2 aligns with the notch in the base.

2. Position the module vertically above the mounting base. The module

will bridge two bases.

1738-IJM23/A

5V dc

Encoder/Counter

MOD

NET

A

B

Z

3. Push the module down until it engages the latching mechanism. You will

hear a clicking sound when the module is properly engaged.

The locking mechanism will lock the module to the base.

Remove the ArmorPOINT Encoder/Counter Module From the
Mounting Base

To remove the module from the mounting base:

1. Put a flat blade screwdriver into the slot of the orange latching

mechanism.

2. Push the screwdriver toward the I/O module to disengage the latch.

The module will lift up off the base.

3. Pull the module off of the base.

Publication 1738-IN012B-EN-E - August 2013