1768 CompactLogix Power Supplies - Rockwell …

1 Publication 1768-IN001B-EN-P - July 2006 Installation Instructions1768 CompactLogix Power SuppliesCatalog Numbers 1768-PA3, 1768-PB3 About This PublicationUse this publication to install the 1768-PA3 and 1768-PB3 CompactLogix Power user Information2 About the 1768 Power Supplies5 Safety Circuits11 Main Power Disconnect12 Install the Power Supply16 Mount the Power Supply16 Place 1769 I/O Modules in a 1768 CompactLogix System22 Interpret the LED Indicators23 Specifications27 Additional Resources312 1768 CompactLogix Power SuppliesPublication 1768-IN001B-EN-P - July 2006 Important user InformationSolid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication available from your local Rockwell Automation sales office or online at ) describes some important differences between solid state equipment and hard-wired electromechanical devices.

2 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 no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this 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 patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc.

3 , is this manual, when necessary, we use notes to make you aware of safety 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 information that is critical for successful application and understanding of the information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you to identify a hazard, avoid a hazard, and recognize the may be located on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be may be located on or inside the equipment, for example, a drive or motor, to alert people that surfaces may be dangerous HAZARDBURN HAZARD1768 CompactLogix Power Supplies 3 Publication 1768-IN001B-EN-P - July 2006 North American Hazardous Location ApprovalAVERTISSEMENTThe following Information applies when operating this equipment in hazardous locations:Informations sur l'utilisation de cet quipement en environnements dangereux.

4 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 produits marqu s "CL I, DIV 2, GP A, B, C, D" ne conviennent qu' une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livr avec des marquages sur sa plaque d'identification qui indiquent le code de temp rature pour les environnements dangereux.

5 Lorsque plusieurs produits sont combin s dans un syst me, le code de temp rature le plus d favorable (code de temp rature le plus faible) peut tre utilis pour d terminer le code de temp rature global du syst me. Les combinaisons d' quipements dans le syst me sont sujettes inspection par les autorit s locales qualifi es au moment de l' HAZARDDo 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 of components may impair suitability for Class I, Division this product contains batteries, they must only be changed in an area known to be D'EXPLOSIONC ouper le courant ou s'assurer que l'environnement est class non dangereux avant de d brancher l' le courant ou s'assurer que l'environnement est class non dangereux avant de d brancher les connecteurs.

6 Fixer tous les connecteurs externes reli s cet quipement l'aide de vis, loquets coulissants, connecteurs filet s ou autres moyens fournis avec ce substitution de composants peut rendre cet quipement inadapt une utilisation en environnement de Classe I, Division 'assurer que l'environnement est class non dangereux avant de changer les 1768 CompactLogix Power SuppliesPublication 1768-IN001B-EN-P - July 2006 Environment and EnclosureATTENTIONThis 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 ( mi) without 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 equipment is supplied as open-type equipment.

7 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 this publication, see:Industrial Automation Wiring and Grounding Guidelines, Alllen-Bradley publication Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of CompactLogix Power Supplies 5 Publication 1768-IN001B-EN-P - July 2006 Prevent Electrostatic DischargeThis equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation.

8 Follow these guidelines when you handle this equipment:About the 1768 Power SuppliesThe CompactLogix Power supply provides Power through the CompactLogix backplane. The backplane is built into the 1768 and 1769 Power Supplies , controllers, and I/O addition to backplane Power , both the 1768-PA3 and 1768-PB3 Power Supplies offer a 24V dc external Power supply 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 Power Supply1768-PB3 Power SupplyInput Power Terminal24V dc External Power TerminalInput Power Terminal24V dc External Power TerminalBackplaneBackplane6 1768 CompactLogix Power SuppliesPublication 1768-IN001B-EN-P - July 20061768-PA3 Power SupplyThe 1768-PA3 Power supply is a dual-input Power supply that operates in multiple ranges.

9 The 1768-PA3 offers the following input Power supply options: ac dc1768-PB3 Power SupplyThe 1768-PB3 Power supply is a single-input Power supply. The 1768-PB3 offers the following input Power supply range: dcAbout the Power Supplies in a CompactLogix SystemThe CompactLogix system is set up differently than other Logix systems. The following are considerations specific to the CompactLogix system: Both the 1768-PA3 and the 1768-PB3 Power Supplies require that a 1768 CompactLogix controller be installed in the same bank as the Power supply before the system is Power supply sends 24V dc to the controller located either immediately to the right of the Power supply or immediately to the right of the communication and motion SupplyCommunication or Motion ModuleCommunication or Motion ModuleController1769 I/O Module1769 I/O ModulePower supply provides 24V dc Power to controller through the CompactLogix SystemController provides 5V dc to communication and motion provides 5V/24V dc to 1769 I/O CompactLogix Power Supplies 7 Publication 1768-IN001B-EN-P - July 2006 The controller converts the 24V dc to 5V dc and distributes 5V dc and 24V dc Power as required by

10 Modules on the backplane. The following list describes controller Power distribution considerations: 5V/24V Power goes to 1769 I/O modules on the right side of the controller. 5V Power goes to 1768 communication or motion modules on the left side of the controller. System Power -up and Power -down may take longer than expected. Full Power -up should occur within a few seconds of turning on the Power supply. Power -down, however, takes significantly longer. When the Power supply is turned off, the CompactLogix controller uses some Power to write its program to internal memory. During this program write, there is activity on the controller s status indicators. If your system is not receiving Power , the cause may or may not be the Power example, if a 5V short exists in the 1769 I/O portion of the local chassis, the controller faults and stops powering the 1769 I/O until the short condition is corrected.