Rockwell Automation 1771-A1B_A2B_A3B_A3B1_A4B SERIES B Universal I/O Chassis Installation Instructions - Manual

Publication 1771ĆIN075A-EN-P - March 2002
Universal I/O Chassis
(Cat. No. 1771-A1B, -A2B, -A3B, -A3B1,
-A4B Series B)
To install an I/O chassis you See page
important user information . . . . . . . . . . . . . . . . . . . . . . . . . . 1
prepare for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
allow sufficient mounting space . . . . . . . . . . . . . . . . . . . . . . 4
mount the I/O chassis and ground bus . . . . . . . . . . . . . . . . . 8
ground the chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
set the power supply configuration jumper . . . . . . . . . . . . . . . 13
set the switches on the backplane assembly . . . . . . . . . . . . . 13
provide power to the I/O chassis . . . . . . . . . . . . . . . . . . . . . 14
install I/O modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
hazardous location approval . . . . . . . . . . . . . . . . . . . . . . . . . 18
specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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 Allen–Bradley 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, Allen–Bradley 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 Allen–Bradley 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.
Installation Instructions
To the Installer
Important User
Information