A-BControlLogix 32-point DC (10…31.2V) Input Module, Series B

ControlLogix 32-point DC (10…31.2V) Input Module, Series B Catalog Number 1756 - IB32, Series B

Topic Page

Important User Information 2

Environment and Enclosure 3

Preventing Electrostatic Discharge 4

Removal and Insertion Under Power 4

European Hazardous Location Approval 5

North American Hazardous Location Approval 6

Before You Begin 7

Module Components 7

Power Requirements 8

Install the Module 8

Key the Module and Removable Terminal Block/Interface Module 9

Wire the Module 11

Wire the Removable Terminal Block (RTB) 12

Assemble the Removable Terminal Block (RTB) and the Housing 13

Install the Removable Terminal Block (RTB) onto the Module 14

Status Indicators 15

Remove the Removable Terminal Block (RTB) from the Module 16

Remove the Module 17

Specifications 18

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://literature.rockwellautomation.com) 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, when necessary, we use notes to make you aware of safety considerations

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 m (6562 ft) 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.

In addition to this publication, see:

• Industrial Automation Wiring and Grounding Guidelines, for 

additional installation requirements, Allen-Bradley publication 

1770-4.1.

• NEMA Standards publication 250 and IEC publication 60529, as 

applicable, for explanations of the degrees of protection provided by 

different types of enclosure.

Preventing Electrostatic Discharge

Removal and Insertion Under Power

ATTENTION 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.

• Use a static-safe workstation, if available.

• Store the equipment in appropriate static-safe packaging when not 

in use.

WARNING When you insert or remove the module while backplane power is on, an 

electrical arc can occur. This could cause an explosion in hazardous location 

installations. Be sure that power is removed or the area is nonhazardous 

before proceeding. Repeated electrical arcing causes excessive wear to 

contacts on both the module and its mating connector. Worn contacts may 

create electrical resistance that can affect module operation.

ATTENTION Personnel responsible for the application of safety-related programmable 

electronic systems (PES) shall be aware of the safety requirements in the 

application of the system and shall be trained in using the system