Rockwell Automation 1771-IAD User Manual
Installation Instructions
AC/DC (120V) Input Module
(Cat. No. 1771-IAD Series D)
Contents
Important User Information
Use this document as a guide when installing the catalog number
1771-IAD series D input module.
To See page
Important User Information 1
Prevent Electrostatic Discharge 3
Important Preinstallation Considerations 4
Calculate Power Requirements 4
Setting the Delay Time Jumper 5
Key the Backplane Connector 5
Install the Module and Field Wiring Arm 6
Connect Wiring to the Field Wiring Arm 7
For this reference information See page
Interpret the Status Indicators 9
Troubleshooting 9
Hazardous Location 10
Specifications 11
Because of the variety of uses for the products described in this
publication, those responsible for the application and use of these
products must satisfy themselves that all necessary steps have been
taken to assure that each application and use meets all performance
and safety requirements, including any applicable laws, regulations,
codes and standards. In no event will Rockwell Automation be
responsible or liable for indirect or consequential damage resulting
from the use or application of these products.
Any illustrations, charts, sample programs, and layout examples
shown in this publication are intended solely for purposes of
example. Since there are many variables and requirements associated
with any particular installation, Rockwell Automation does not
assume responsibility or liability (to include intellectual property
liability) for actual use based upon the examples shown in this
publication.
Allen–Bradley publication SGI–1.1, Safety Guidelines for
Application, Installation, and Maintenance of Solid–State Control
(available from your local Rockwell Automation office), describes
some important differences between solid–state equipment and
electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Publication 1771ĆIN023B-EN-P - August 2002
AC/DC (120V) Input Module2
Reproduction of the contents of this copyrighted publication, in
whole or part, without written permission of Rockwell Automation,
is prohibited.
Throughout this publication, notes may be used to make you aware
of safety considerations. The following annotations and their
accompanying statements help you to identify a potential hazard,
avoid a potential hazard, and recognize the consequences of a
potential hazard.
WARNING
!
ATTENTION
!
IMPORTANT
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 about practices or
circumstances that 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.
Publication 1771ĆIN023B-EN-P - August 2002
AC/DC (120V) Input Module 3
ATTENTION
!
Environment and Enclosure
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
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 “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 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.
See NEMA Standards publication 250 and IEC
publication 60529, as applicable, for explanations
of the degrees of protection provided by different
types of enclosures. 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.
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AC/DC (120V) Input Module4
N
Prevent Electrostatic
Damage
Important PreĆinstallation
Considerations
The ac/dc input module is shipped in static-shielded packaging to
guard against electrostatic discharge damage. Observe the following
precautions when handling the module.
Electrostatic Discharge Damage
ATTENTIO
!
Electrostatic discharge can damage
integrated circuits or semiconductors if you touch
backplane 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 backplane connector or
connector pins
• Do not touch circuit components inside the mod-
ule
• If available, use a static-safe work station
• When not in use, keep the module in its original
static-shielded packaging
The 1771-IAD Series D module is compatible with all chassis except
the 1771-A1, 1771-A2 and 1771-A4 chassis. Make sure no other
input module or single card block transfer module is placed in the
same module group when using 2-slot addressing. Any discrete
output module may be used within the same module group.
Calculate Power
Requirements
Your module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The module requires
195mA from the output of this supply. Add this to the requirements
of all other modules in the I/O chassis to prevent overloading the
chassis backplane and/or chassis power supply.
Publication 1771ĆIN023B-EN-P - August 2002
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