TECH LIBRARY 1 SVPP Supplier Manuals Rockwell 1756-OB32 Contact Output Module.pdf

Installation Instructions

ControlLogix™ DC (10-31.2V) Output Module

Catalog Number 1756-OB32

Obtain a User Manual This product also has a user manual (pub. no. 1756-UM058). To view it, visit www.ab.com/manuals or www.theautomationbookstore.com.

To purchase a manual, you can:

� contact your distributor or Rockwell Automation representative

� visit www.theautomationbookstore.com and place an order

� call 800.963.9548 (USA/Canada) or 001.320.725.1574 (outside USA/Canada)

To: See page:

Obtain a User Manual 1

Identify the Module Components 6

Note the Power Requirements 6

Install the Module 7

Key the Module and Removable Terminal Block/Interface Module 8

Wire the Module 10

Assemble the Removable Terminal Block and the Housing 11

Install the Removable Terminal Block onto the Module 11

Check the Indicators 12

Remove the Removable Terminal Block from the Module 13

Remove the Module 13

See Specifications 14 Publication 1756-IN026D-EN-P - February 2003

2 ControlLogix™ DC (10-31.2V) Output Module ControlLogix is a trademark of Rockwell Automation, Inc.

Important User Information 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 the 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.

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

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.

ATTENTION

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss.

IMPORTANT Identifies information that is critical for successful application and understanding of the product.

ControlLogix™ DC (10-31.2V) Output Module 3 Environment and Enclosure

Prevent Electrostatic Discharge

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 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 enclosure. 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.

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.

� If available, use a static-safe workstation.

When not in use, store the equipment in appropriate static-safe packaging.

4 ControlLogix™ DC (10-31.2V) Output Module Removal and Insertion Under Power

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.

European Zone 2 Use If you install the module in a European Zone 2 location, consider:

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.

European Zone 2 Certification

This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/EC.

The LCIE (Laboratoire Central des Industries Electriques) certifies that this equipment 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. The examination and test results are recorded in confidential report No. 28 682 010.

Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 50021 (1999).

ControlLogix™ DC (10-31.2V) Output Module 5 IMPORTANT When using this product, also consider the following:

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

� The secondary of a current transformer shall not be open-circuited when applied in Class I, Zone 2 environments.

� Equipment of lesser Enclosure Type Rating must be installed in an enclosure providing at least IP54 protection when applied in Class I, 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 Class I, Zone 2 environments.

6 ControlLogix™ DC (10-31.2V) Output Module Identify the Module Components You received the following components with your order:

� 1756-OB32 module

� Removable Terminal Block (RTB) door label

If you did not receive these components, contact your local distributor Rockwell Automation sales office.

This module mounts in a 1756 chassis and uses a separately-ordered

RTB or a Bulletin 1492 Interface Module (IFM)(1) to connect all field-side wiring. This module uses one of the following RTBs:

� 1756-TBCH 36 position Cage clamp RTB

� 1756-TBS6H 36 position Spring clamp RTB

Use an extended-depth cover (1756-TBE) for applications with heavy gauge wiring or requiring additional routing space. When using an IFM, consult the documentation that came with it to connect wiring.

Note the Power Requirements This module receives power from the 1756 chasis power supply and requires 2 sources of power from the backplane:

� 300mA at 5.1V dc

� 2mA at 24V dc

Add this current/power value (1.58W) to the requirements of all other modules in the chassis to prevent overloading the power supply.

(1) The Bulletin 1492 IFM may not be used in any application that requires agency certification of the ControlLogix system. Use of the IFM violates the UL, CSA and FM certifications of this product.

IMPORTANT Before you install your module, you should:

� install and ground a 1756 chassis and power supply.

� order and receive an RTB or IFM, and its components, for your application.

ControlLogix™ DC (10-31.2V) Output Module 7 Install the Module You can install or remove the module while chassis power is applied.

1. Align the circuit board with the top and bottom chassis guides.

2. Slide the module into the chassis until the module locking tabs click.

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.

20861–M

Printed Circuit Board

ControlLogix™ DC (10-31.2V) Output Module 9 Wire the Removable Terminal Block Wire the RTB with a 5/16 inch (8mm) maximum flat-bladed screwdriver before installing it onto the module.

WARNING When you connect or disconnect the Removable

Terminal Block (RTB) with field side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations. Make sure that power is removed or the area is nonhazardous before proceeding.

Spring Clamp RTB Cage Clamp RTB

20860-M 20859-M

1. Strip 7/16 inch (11mm) maximum length of wire.

2. Insert the screwdriver into the inner hole of the RTB.

3. Insert the wire into the open terminal and remove the screwdriver.

1. Strip 3/8 inch (9.5mm) maximum length of wire.

2. Insert the wire into the open terminal.

3. Turn the screw clockwise to close the terminal on the wire.

10 ControlLogix™ DC (10-31.2V) Output Module Wire the Module You can only connect wiring to your module through an RTB or IFM.

The example below shows how to wire the module.

After completing field-side wiring, secure the wires in the strain relief area with a cable-tie.

40171-M

Daisy chain to other RTBs

1. When you daisy chain from a group to another RTB, always connect the daisy chain as shown above. Do not connect more than 2 wires to any single terminal.

2. This wiring example uses a single voltage source.

3. If separate power sources are used, do not exceed the specified isolation voltage.

Group 0

Group 1

Group 0

Group 1

DC COM

OUT-1

OUT-3

OUT-5

OUT-7

OUT-9

OUT-11

OUT-13

OUT-15

DC-0(+)

DC-1(+)

OUT-0

OUT-2

OUT-4

OUT-6

OUT-8

OUT-10

OUT-12

OUT-14

RTN OUT-0

RTN OUT-1

OUT-17

OUT-19

OUT-21

OUT-23

OUT-25

OUT-27

OUT-29

OUT-31

OUT-16

OUT-18

OUT-20

OUT-22

OUT-24

OUT-26

OUT-28

OUT-30

1756-OB32

NOTES:

ControlLogix™ DC (10-31.2V) Output Module 11 Assemble the Removable Terminal Block and the Housing

Install the Removable Terminal Block onto the Module

Before installing the RTB, make certain:

� field-side wiring of the RTB has been completed.

� the RTB housing is snapped in place on the RTB.

� the RTB housing is closed.

� the locking tab at the top of the module is unlocked.

WARNING When you connect or disconnect the Removable Terminal Block

(RTB) with field side power applied, 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.

20858–M

Groove

Groove

Side edge of the RTB

Side edge of the RTB

Strain relief area

1. Align the grooves at the bottom of the housing with the side edges of the RTB.

2. Slide the RTB into the housing until it snaps into place.

20853–M 20854–M

Module guide

RTB guides

Locking tab

1. Align the side and top, bottom guides. 2. Press quickly and evenly to seat the RTB until the latches snap into place.

3. To lock the RTB on the module, slide the locking tab down.

12 ControlLogix™ DC (10-31.2V) Output Module Check the Indicators

The indicators show individual I/O status (yellow) for each point and a bi-colored LED for module "OK" (red/green).

During power up, an indicator test is done and the following occurs:

� "OK" indicator turns red for 1 second and then turns to flashing green if it has passed the self-test.

� I/O status indicators turn ON for a maximum of 2 seconds and then turn OFF.

This completes installation of the module. Use the following information to remove the module, if necessary.

Indicator: Displaying: Means: Take this action:

OK Steady green light The outputs are actively being controlled by a system processor.

None

OK Flashing green light

The module has passed internal diagnostics but is not actively controlled.

Configure the module.

OK Flashing red light

Previously established communication has timed out.

Check controller and chassis communication.

OK Steady red light

An unrecoverable error has occurred on the module.

Replace the module.

I/O State Yellow The output is active. None

DC OUTPUT

O K

ST 0 1 2 3 4 5 6 7

ST 8 9

0 21 3 4 5

1 1 1 11

ST 6 7

8 09 1 2 3

1 2 2 221 1

ST 4 5

6 87 9 0 1

2 2 2 332 2

40465-M

ControlLogix™ DC (10-31.2V) Output Module 13 Remove the Removable Terminal Block from the Module If you need to remove the module, you must remove the RTB first.

Before removing the module, you must remove the RTB.

Remove the Module

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.

20855–M

2. Open the RTB door and pull the RTB off the module.

1. Unlock the locking tab at the top of the module.

42517

1. Push in top and bottom locking tabs. 2. Pull module out of the chassis.

20856–M 20857–M

14 ControlLogix™ DC (10-31.2V) Output Module 1756-OB32 Specifications Number of Outputs 32 (16 points/common) Module Location 1756 ControlLogix Chassis Backplane Current 300mA @ 5.1V dc & 2mA @ 24V dc

(Total backplane power 1.58W) Maximum Power Dissipation 4.8W @ 60oC Thermal Dissipation 16.37 BTU/hr Output Voltage Range 10-31.2V dc @ 50oC (Linear derating)

10-28V dc @ 60oC Output Current Rating

Per Point

Per Module

0.5A maximum @ 50°C (Linear derating) 0.35A maximum @ 60°C 16A maximum @ 50°C (Linear derating) 10A maximum @ 60°C

Surge Current per Point 1A for 10ms each, repeatable every 2s @ 60°C Minimum Load Current 3mA per point Maximum On-State Voltage Drop 200mV dc @ 0.5A Maximum Off-State Leakage Current

0.5mA per point

Output Delay Time OFF to ON ON to OFF

1ms maximum 1ms maximum

Scheduled Outputs Synchronization within 16.7s maximum, reference to the Coordinated System Time

Configurable Fault States/Point Hold Last State, ON or OFF (OFF is the default) Configurable States in Program Mode per Point

Hold Last State, ON or OFF (OFF is the default)

Fusing Not protected - Fused IFM can be used to protect outputs (See publication 1492-2.12). However, the Bulletin 1492 IFM may not be used in any application that requires agency certification of the ControlLogix system. Use of the IFM violates the UL, CSA and FM certifications of this product.

Reverse Polarity Protection None - If module is wired incorrectly, outputs may be damaged.

ControlLogix™ DC (10-31.2V) Output Module 15 Isolation Voltage Group to group

User to system

30V maximum continuous 100% tested at 2546V dc for 1s 30V maximum continuous 100% tested at 2546V dc for 1s

RTB Screw Torque (Cage clamp) 4.4 inch-pounds (0.4Nm) maximum Module Keying (Backplane) Software configurable RTB Keying User defined mechanical keying Field Wiring Arm and Housing 36 Position RTB (1756-TBCH or TBS6H)(1)

Environmental Conditions Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock):

0 to 60°C (32 to 140°F)

Storage Temperature IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold), IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat), IEC 60068-2-14 (Test Na, Un-packaged Non-operating Thermal Shock):

–40 to 85°C (–40 to 185°F)

Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non-operating Damp Heat):

5 to 95% non-condensing

Vibration IEC60068-2-6 (Test Fc, Operating):

2g @ 10-500Hz

Shock IEC60068-2-27 (Test Ea, Unpackaged shock):

Operating 30g Non-operating 50g

Emissions CISPR 11:

Group 1, Class A

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 30MHz to 1000MHz 10V/m with 200Hz 50% Pulse 100%AM at 900Mhz

16 ControlLogix™ DC (10-31.2V) Output Module EFT/B Immunity IEC 61000-4-4:

±4kV at 2.5kHz on power ports ±4kV at 2.5kHz on signal ports

Surge Transient Immunity IEC 61000-4-5:

±1kV line-line(DM) and ±2kV line-earth(CM) on power ports ±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

Enclosure Type Rating None (open-style) Conductors Wire Size

Category

#22 to #14 AWG (0.324 to 2.08 sq. mm) stranded(1)

3/64 inch (1.2mm) insulation maximum

1(2), (3)

Screwdriver Blade Width for RTB 1/8 inch (3.2mm) maximum Certifications (when product is marked)

UL UL Listed Industrial Control Equipment CSA CSA Certified Process Control Equipment CSA CSA Certified Process Control Equipment for

Class I, Division 2 Group A,B,C,D Hazardous Locations

FM FM Approved Equipment for use in Class I Division 2 Group A,B,C,D Hazardous Locations

CE(4) European Union 89/336/EEC EMC Directive, compliant with:

EN 50082-2; Industrial Immunity EN 61326; Meas./Control/Lab., Industrial Requirements EN 61000-6-2; Industrial Immunity EN 61000-6-4; Industrial Emissions

C-Tick(4) Australian Radiocommunications Act, compliant with:

AS/NZS 2064; Industrial Emissions

EEx(4) European Union 94/9/EEC ATEX Directive, compliant with:

EN 50021; Potentially Explosive Atmospheres, Protection “n”

(1) Maximum wire size requires extended housing - 1756-TBE.

ControlLogix™ DC (10-31.2V) Output Module 17

(2) Use this conductor category information for planning conductor routing as described in the system level installation manual.

(3) Refer to publication 1770-4.1 Industrial Automation Wiring and Grounding Guidelines.

(4) See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details.

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

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

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 and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest “T” number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation.

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu’à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d’identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés 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’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.

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’environnement est classé non dangereux avant de changer les piles.

18 ControlLogix™ DC (10-31.2V) Output Module Notes:

ControlLogix™ DC (10-31.2V) Output Module 19 Notes:

Rockwell Automation Support Before you contact Rockwell Automation for technical assistance, we suggest you please review the troubleshooting information contained in this publication first.

If the problem persists, call your local distributor or contact Rockwell Automation in one of the following ways:

Phone United States/Canada 1.440.646.5800

Outside United States/Canada

You can access the phone number for your country via the Internet:

1. Go to http://support.rockwellautomation.com/

2. Under Contacting Customer Support and Other Countries, click on Click here

Internet Worldwide Go to http://support.rockwellautomation.com/ Notes:

Publication 1756-IN026D-EN-P - February 2003 PN 957726-58 Supersedes Publication 1756-IN026C-EN-P - October 2000 Copyright © 2003 Rockwell Automation. All rights reserved. Printed in the U.S.A.

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