Rockwell Automation 1771-IBN User Manual

DC (10...30V) Input Module

Catalog Number 1771-IBN Series C

Top ic Pa ge

Important User Information 2 Environment and Enclosure 3 Prevent Electrostatic Discharge 3 European Hazardous Location Approval 4 North American Hazardous Location Approval 5 Before You Begin 6

Installation Instructions

Calculate Power Supply Requirements 6
Key the Backplane Connector 7
Install the Module and Field Wiring Arm 8
Connecting Wiring to the Field Wiring Arm 10
Status Indicators 15
Specifications 16

2 DC (10...30V) Input Module

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-IN001
http://literature.rockwellautomation.com

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.

available from your local Rockwell Automation sales office or online at

) describes some important differences between solid state

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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 and recognize the consequences.

Labels may be on or inside the equipment (for example, drive or motor) to alert people
that dangerous voltage may be present.

Labels may be on or inside the equipment (for example, drive or motor) to alert people
that surfaces may reach dangerous temperatures.

Publication 1771-IN028D-EN-P - October 2008

Environment and Enclosure

DC (10...30V) Input Module 3

ATTENTION

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 enclosure must have suitable flame-retardant properties to
prevent or minimize the spread of flame, complying with a flame spread rating of 5VA,
V2, V1, V0 (or equivalent) if non-metallic. 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.

Prevent Electrostatic Discharge

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.

Publication 1771-IN028D-EN-P - October 2008

4 DC (10...30V) Input Module

European Hazardous Location Approval

ATTENTION

WARNING

This equipment is intended for use in potentially explosive atmospheres as defined by
European Union Directive 94/9/EC and has been found to comply with the Essential
Health and Safety Requirements relating to the design and construction of Category 3
equipment intended for use in potentially explosive atmospheres, given in Annex II to this
Directive.

Compliance with the Essential Health and Safety Requirements has been assured by
compliance with EN 60079-15 and EN 60079-0.

Observe the following additional Zone 2 certification requirements:

• This equipment is not resistant to sunlight or other sources of UV radiation.

• This equipment must be installed in an enclosure providing at least IP54 protection

when applied in Zone 2 environments.

• This equipment shall be used within its specified ratings defined by Allen-Bradley.

• Provision shall be made to prevent the rated voltage from being exceeded by

transient disturbances of more than 40% when applied in Zone 2 environments.

• This equipment must be used only with ATEX certified backplanes.

• Secure any external connections that mate to this equipment by using screws, sliding

latches, threaded connectors, or other means provided with this product.

• Do not disconnect equipment unless power has been removed or the area is known to
be nonhazardous.

Publication 1771-IN028D-EN-P - October 2008

DC (10...30V) Input Module 5

North American Hazardous Location Approval

The following information applies when operating
this equipment in hazardous locations.

Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in
Class I Division 2 Groups A, B, C, D, Hazardous Locations an d
nonhazardous locations only. Each product is su pplied with
markings on the rating nameplate indicatin g the hazardous
location temperature code. When combining p roducts within a
system, the most adverse temperature code (lowest "T" number)
may be used to help determine the overa ll temperature code of
the system. Combinations of equipment in your system are subject
to investigation by the local Author ity Having Jurisdiction at the
time of installation.

WARNING

EXPLOSION HAZARD -

• Do not disconnect equipment

unless power has been removed
or the area is known to be
nonhazardous.

• Do not disconnect connections to

this equipment unless power has
been removed or the area is
known to be nonhazardous.
Secure any external connections
that mate to this equipment by
using screws, sliding latches,
threaded connectors, or other
means provided with this product.

• Substitution of components may

impair suitability for Class I,
Division 2.

• If this product contains batteries,

they must only be changed in an
area known to be nonhazardous.

Informations sur l’utilisation de cet équipement en
environnements dangereux.

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent
qu'à une utilisation en environnem ents de Classe I Division 2
Groupes A, B, C, D dangereux et non danger eux. Chaque produit
est livré avec des marquages sur sa plaque d'identificatio n qui
indiquent le code de température pour les en vironnements
dangereux. Lorsque plusieurs produits sont combi nés dans un
système, le code de température le plus défavorable (code de
température le plus faible) peut être utilisé pour déterminer le
code de température global du système. Les combinaisons
d'équipements dans le système sont sujettes à inspection par les
autorités locales qualifiées au moment de l'instal lation.

AVERTISSEMENT

RISQUE D’EXPLOSION –

• Couper le courant ou s'assurer
que l'environnement est classé
non dangereux avant de
débrancher l'équipement.

• Couper le courant ou s'assurer
que l'environnement est classé
non dangereux avant de
débrancher les connecteurs. Fixer
tous les connecteurs externes
reliés à cet équipement à l'aide
de vis, loquets coulissants,
connecteurs filetés ou autres
moyens fournis avec ce produit.

• La substitution de composants
peut rendre cet équipement
inadapté à une utilisation en
environnement de Classe I,
Division 2.

• S'assurer que l'environne ment est
classé non dangereux avant de
changer les piles.

Publication 1771-IN028D-EN-P - October 2008

6 DC (10...30V) Input Module

Before You Begin

The 1771-IBN series C DC input module is a sink input and requires a source output. A sink
input provides a path to ground and a source output provides a positive voltage path.

You must use this module in a 1771-A1B through 1771-A4B or later 1771 I/O chassis. Refer
to the table for processor compatibility.

Processor Capability

System Type Use with Processors Cat. No.

Local Mini-PLC-2/02

Remote with a
1771-ASB
remote I/O
adapter

Mini-PLC-2/16
Mini-PLC-2/17
PLC-5/15, series B and later

PLC2/20
PLC-2/30
PLC-3
PLC-3/10
PLC-5/15, series B and later

Do not place this module in the same I/O chassis as the 1771-IX thermocouple module. You
can use this module in the same chassis as the 1771-IXE thermocouple module.

1772-LZ, 1772-LZP
1772-LX, 1772-LXP
1772-LW, 1772-LWP
1785-LT

1772-LP2
1772-LP3
1775-L1, 1775-L2, 1775-L3, 1775-L4
1775-LP4, LP8
1785-LT

This module has input filtering to limit the effect of voltage transients caused by contact
bounce and/or electrical noise. Specifications for input filtering are listed in the specifications
section of this document.

Calculate Power Supply Requirements

Your module receives its power for internal logic circuitry through the 1771 I/O chassis
backplane from the chassis power supply. The module requires 280 mA from the output of
this supply.

To calculate the requirements for the backplane power supply, add 280 mA to the power
requirements of all other modules in the I/O chassis. Calculating the requirements prevents
an overload to the chassis backplane and/or backplane power supply.

Publication 1771-IN028D-EN-P - October 2008