Installation Instructions
ArmorPoint AC Input Modules, Series A
(Cat. No. 1738-IA2M12AC3 and -IA2M12AC4)
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.) I/O connectors are
sealed M12 AC keyed (micro) styles. The mounting base sh ips with
the module. The 1738-IA2M12AC3 and 1738-IA2 M12AC4 modules are
shown below.
1738-IA2M12AC3
Connector M12-A
1738-IA2M12AC4
Connector M12-A
1738-IA2M12AC3/A
12V ac In
0
MOD
NET
1738-IA2M12AC4/A
12V ac In
0
Connector M12-B
1
LED Indicators
0
1
43689
Connector M12-B
1
MOD
NET
LED Indicators
0
1
43688
1 Publication 1738-IN006B-EN-E - July 2004
2 ArmorPoint AC Input Modules, 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
Identifies information that is critical for successful application and understanding of the
product.
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
• recognize the consequence
Labels may be located on or inside the equipment to alert people that dangerous voltage
may be present.
Publication 1738-IN006B-EN-E - July 2004
BURN HAZARD
Labels may be located on or inside the equipment to alert people that surfaces may be
dangerous temperatures.
ArmorPoint AC Input Modules, 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-IN006B-EN-E - July 2004
4 ArmorPoint AC Input Modules, 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
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
Publication 1738-IN006B-EN-E - July 2004
ArmorPoint AC Input Modules, Series A 5
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 8 for
the 1738 AC input
modules
Ground lug connection
43675
Latching mechanism
Publication 1738-IN006B-EN-E - July 2004
6 ArmorPoint AC Input Modules, Series A
Install the ArmorPoint AC Input Module
To install the ArmorPoint AC input module, proceed as follows.
1. Using a bladed screwdriver, rotate the keyswitch on the
mounting base clockwise until the number 8 aligns with the
notch in the base.
2. Position the module vertically above the mounting base. The
module will bridge two bases.
Module will bridge two bases.
1738-IA2M12AC3/A
12V ac In
1
0
MOD
NET
0
1
43777
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 AC Input 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.
Publication 1738-IN006B-EN-E - July 2004
3. Pull the module off of the base.
ArmorPoint AC Input Modules, Series A 7
Wire the AC Input Modules
Following are wiring instructions for the ArmorPoint AC input
modules.
1738-IA2M12AC3
(view into connector)
Pin 1 - Chassis
Pin 2 - L1
Pin 3 - Input 0 (M12-A)
Input 1 (M12-B)
43761
1738-IA2M12AC4
(view into connector)
Pin 1 - L1
Pin 2 - L2/N
Pin 3 - Input 0 (M12-A)
Input 1 (M12-B)
Pin 4 - Chassis
43767
ATTENTION
Make sure all connectors and caps are securely
tightened to properly seal the connections against
leaks and maintain IP67 requirements.
Publication 1738-IN006B-EN-E - July 2004
8 ArmorPoint AC Input Modules, Series A
Communicate With Your Module
I/O messages are sent to (consumed) and received from (produced)
the ArmorPoint I/O modules. These messages are mapped into the
processor’s memory. These ArmorPoint I/O input modules produce 1
byte of input data (scanner Rx - status). They do not consume I/O
data (scanner Tx).
Default Data Map for the ArmorPoint AC Input Modules
1738-IA2M12AC3 and -IA2M12AC4
Message size: 1 Byte
7 6 5 4 3 2 1 0
Produces
(scanner Rx)
Where: Ch0 = Channel 0, Ch1 = Channel 1
0 = off, 1 = on
Not Used Ch1 Ch0 Channel status
Publication 1738-IN006B-EN-E - July 2004
ArmorPoint AC Input Modules, Series A 9
Troubleshoot With the Indicators
1738-IA2M12AC3
1738-IA2M12AC3/A
12V ac In
0
MOD
1
NET
0
1
Module Status Indicators
Network Status Indicators
I/O Status Indicators
43689
Indication Probable Cause
Module Status
Off No power applied to device
Green Device operating normally
Flashing Green Device needs commissioning due to missing, incomplete, or
incorrect configuration
Flashing Red Recoverable fault
Red Unrecoverable fault - may require device replacement
Flashing Red/Green Device is in self-test
Indication Probable Cause
Network Status
Off Device is not on line:
- Device has not completed dup_MAC-id test.
- Device not powered - check module status indicator.
Flashing Green Device is on line but has no connections in the established state.
Green Device is on line and has connections in the established state.
Flashing Red One or more I/O connections in timed-out state.
Red Critical link failure - failed communication device. Device
detected error that prevents it from communicating on the
network.
Flashing Red/Green Communication faulted device - the device has detected a
network access error and is in communication faulted state.
Device has received and accepted an Identity Communication
Faulted Request - long protocol message.
Publication 1738-IN006B-EN-E - July 2004
10 ArmorPoint AC Input Modules, Series A
Indication Probable Cause
I/O Status
Off Input is in the off-state
Yellow Input is in the on-state
Specifications
Following are specifications for the 1738 ArmorPoint AC input
modules.
ArmorPoint AC Input Modules
Inputs per Module 2 (1 group of 2) nonisolated, sinking
On-state Voltage
Maximum
Minimum
Nominal
Off-state Voltage, Maximum 43V ac
On-state Current
Minimum
Nominal
Off-state Current, Maximum 2.5 mA
Nominal Input Impedance 10.6kΩ
Delay Time
OFF to ON
ON to OFF
Keyswitch Position 8
General Specifications
LED Indicators 2 yellow input status, logic side
PointBus Current, Maximum 75 mA @ 5V dc
Power Dissipation, Maximum 0.7 W @ 132V ac
Thermal Dissipation, Maximum 2.4 BTU/hr. @ 132V ac
Isolation Voltage
(continuous-voltage withstand rating)
External AC Power Supply Voltage 120V ac, 60Hz nominal
External AC Power Supply Voltage Range 85-132V ac, 47-63Hz
Dimensions (includes I/O module Inches
and mounting base) (Millimeters)
Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold),
Storage Temperature IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non-operating Damp Heat):
1
132V ac
65V ac
120V ac
3.7 mA
6.9 mA @ 120V ac, 60Hz
20ms hardware filter plus 1ms - 64ms digital filter
programmable in increments of 1ms
1 green/red network status, logic side
1 green/red module status, logic side
120V rms
Tested at 1250V ac rms for 60s
4.72H x 2.82W x 1.65D
(120H x 72W x 42D)
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20 to 60°C (-4 to 140°F)
IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat),
-40 to 85°C (-40 to 185°F)
5-95% non-condensing
Publication 1738-IN006B-EN-E - July 2004
ArmorPoint AC Input Modules, Series A 11
General Specifications (continued)
Shock IEC60068-2-27 (Test Ea, Unpackaged Shock):
Operating 30g
Non-operating 50g
Vibration IEC60068-2-6 (Test Fc, Operating):
5g @ 10-500Hz
ESD Immunity IEC 61000-4-2:
6kV contact discharges
8kV air discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 80MHz to 1000MHz
10V/m with 200Hz 50% Pulse 100%AM at 900Mhz
EFT/B Immunity IEC 61000-4-4:
±3kV at 5kHz on signal ports
Surge Transient Immunity IEC 61000-4-5:
±1kV line-line(DM) and ±2kV line-earth(CM) on signal ports
Conducted RF Immunity IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to 80MHz
Emissions CSPR 11:
Group 1, Class A
Enclosure Type Rating Meets IP65/66/67 (when marked)
Mounting Base Screw Torque #8 screw, 7.5 in. lbs. in Aluminum, 16 in. lbs. in Steel
Wiring Category
2
1 - on signal ports
Weight Imperial (Metric) 0.64 lb. (0.29 kg)
Certifications:
(when product is marked)
c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada
3
CE
European Union 89/336/EEC EMC Directive, compliant with:
EN 61000-6-4; Industrial Emissions
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
European Union 73/23/EEC LVD Directive, compliant with:
EN 61131-2; Programmable Controllers
C-Tick3Australian Radiocommunications Act, compliant with: AS/NZS
CISPR 11; Industrial Emissions
1. Input OFF to ON filter time is the time from a valid input signal to the time the module recognizes the signal. Input ON to OFF filter time
is the time from the input signal dropping below the valid level to the time the module recognizes the signal.
2. Use this Conductor Category information for planning conductor routing. Refer to Publication 1770-4.1, "Industrial Automation Wiring
and Grounding Guidelines".
3. See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details.
Publication 1738-IN006B-EN-E - July 2004
Rockwell Automation Support
Rockwell Automation provides technical information on the web to assist you in using our products. At
http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and
application notes, sample code and links to software service packs, and a MySupport feature that you can customize
to make the best use of these tools.
For an additional level of technical phone support for installation, configuration and troubleshooting, we offer
TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation
representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of installation, please review the
information that's contained in this manual. You can also contact a special Customer Support number for initial help
in getting your module up and running:
United States 1.440.646.3223
Monday – Friday, 8am – 5pm EST
Outside United States Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell tests all of our products to ensure that they are fully operational when shipped from the manufacturing
facility. However, if your product is not functioning and needs to be returned:
United States Contact your distributor. You must provide a Customer Support case number (see phone number
above to obtain one) to your distributor in order to complete the return process.
Outside United States Please contact your local Rockwell Automation representative for return procedure.
ArmorPoint is a trademark of Rockwell Automation.
Publication 1738-IN006B-EN-E - July 2004 12 PN 957899-78
Supersedes Publication 1738-IN006A-EN-E - June 2004 Copyright © 2004 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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