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Rockwell Automation Allen-Bradley Bulletin 2364E User Manual

Non-regenerative dc bus supply unit (nru)
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Non-Regenerative
DC Bus Supply Unit
(NRU)
Bulletin 2364E
User Manual

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Summary of Contents for Rockwell Automation Allen-Bradley Bulletin 2364E

  • Page 1 Non-Regenerative DC Bus Supply Unit (NRU) Bulletin 2364E User Manual...
  • Page 2 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 Allen-Bradley Sales Office or online at http:// www.ab.com/manuals/gi) describes some important differences between solid state equipment and hard-wired electromechanical devices.
  • Page 3 Summary of Changes Updated Information This manual incorporates the information found in the previous two manuals: • Non-Regenerative DC Bus Supply, Publication 2364E-5.01 August 1997 • Non-Regenerative DC Bus Supply, Publication 2364E-5.01 March 1998 It also contains new information. Updates and Additions The information below summarizes the changes to this manual since its last release: Page...
  • Page 4 2-soc Summary of Changes End of Summary of Changes Publication 2364E-5.01 April 2002...

  • Page 5: Table Of Contents

    Drive System Receiving ......P-5 Rockwell Automation Support ..... . P-5 Local Product Support .
  • Page 6 toc–ii Table of Contents Chapter 6 Your 2000A DC NRU (Current Code E) 2000A DC System Layout ......6-1 2000A DC NRU Electrical Schematic .
  • Page 7 Table of Contents toc–iii Appendix B NRU Catalog Numbers and Spare Parts Kits Understanding Catalog Numbers ..... B-1 Determining Catalog Numbers ......B-1 NRU Catalog Numbers .
  • Page 8 toc–iv Table of Contents This page intentionally left blank. Publication 2364E-5.01 April 2002...

  • Page 9: Preface

    Rockwell Automation support Who Should Use This Manual Use this manual if you are responsible for installing or operating a Rockwell Automation non-regenerative, common DC bus supply unit (NRU™). If you do not have a basic understanding of the NRU, contact your local Rockwell Automation Drive Systems representative for information before using this product.
  • Page 10 Component damage can result if ESD control procedures are not followed. If you are not familiar with static control procedures, refer to Rockwell Automation publication 8000-4.5.2, Guarding Against Electrostatic Damage, or any other applicable ESD protection handbook.
  • Page 11 Preface P-iii Contents of this Manual Chapter Title Contents Preface Purpose, background, and scope of this manual Overview Theory of operation, features, and standard options Your 180A DC NRU (Current Code A) Schematics and connection diagrams for the 180A DC NRU Your 350A DC NRU (Current Code B) Schematics and connection diagrams for the 350A DC NRU Your 900A DC NRU (Current Code C)

  • Page 12: Related Documentation

    Preface Related Documentation The following documents contain additional information concerning related Rockwell Automation products and related standards. To obtain a copy of Rockwell Automation publications, contact your local Rockwell Automation office or distributor. Read This Document Document Number Information on the 1336 Force™ drives 1336T User Manual —...

  • Page 13: Common Techniques Used In This Manual

    • support service agreements Technical Product Assistance If you need to contact Rockwell Automation for technical assistance, please review the product and troubleshooting information in this manual first. Then, call your local Rockwell Automation representative. For the quickest possible response, we recommend that you have the catalog numbers of your products available when you call.
  • Page 14 P-vi Preface This page intentionally left blank. Publication 2364E-5.01 April 2002...

  • Page 15: Overview

    Chapter Overview This chapter introduces Rockwell Automation’s Bulletin 2364E common DC bus, non-regenerative unit (NRU), describes the theory of NRU operation, and provides comprehensive lists of NRU features and standard options. Appendix A contains specifications on available NRUs. Appendix B contains NRU catalog numbers with descriptions.

  • Page 16: How Will The Nru Fit Into A 2362 Drive System

    Overview How will the NRU fit into a 2362 drive system? We packaged the NRU in CENTERLINE ™ Bulletin 2100 motor control centers (MCC) to be compatible with our existing 2362 AC drive system lineups. As an added convenience, you can connect other MCCs to both the right and left sides of an NRU.

  • Page 17: How Does An Nru Work

    Overview How Does An NRU Work? To help you to understand the theory behind how an NRU works, read this section for descriptions of the primary electrical components, a conceptual schematic, and a discussion of rectifier bridge operation. Primary Electrical Components of the NRU The primary electrical components of the NRU are: •...
  • Page 18 Overview Six-Pulse, Full-Wave, 3-Phase-Diode-Bridge Rectifier Unit The bridge rectifier converts the 3-phase AC power to DC. DC Bus Choke The DC bus choke reduces peak currents in the AC line and the bridge circuit. The DC bus choke also reduces line harmonics. Control Power Transformer This transformer steps down 2 phases of the 3-phase AC line voltage to a single-phase, 115V AC control signal.

  • Page 19: Nru Conceptual Schematic

    Overview NRU Conceptual Schematic Customer-supplied, 3-phase AC power is supplied to the system as shown on the left side of the NRU schematic shown in Figure 1.1. All three phases are fused and then connected to the diode-bridge rectifier, as shown. The diode-bridge rectifier is also connected through DC bus chokes to the DC bus.

  • Page 20: Power Conversion Operation

    Overview Power Conversion Operation The diodes in the rectifier bridge will only permit current flow in one direction, from anode to cathode. When an AC voltage is applied to a diode, the output of that diode is a pulsating DC signal (positive half- cycles only).

  • Page 21: Bulletin 2364E Nru - Standard Features

    Overview Bulletin 2364E NRU – Electrical System Features Standard Features • A 3-phase circuit breaker / motor circuit protector rated for 65kAIC: • 180 and 350A DC units have motor circuit protectors • 900, 1500, 2000, 2500, and 3000A DC units have circuit breakers •...
  • Page 22 Overview • Ability to connect to other MCC sections on both the right and left sides • Top-entry AC line input • Removable top-plate for cutting conduit holes • 6"-high, full-section-depth, horizontal wireway at top of MCC enclosure Note: The front-half of the top horizontal wireway is typically reserved for the routing of control/communication wires.

  • Page 23: Bulletin 2364E Nru - Standard Options

    Overview Bulletin 2364E NRU – Electrical System Options Standard Options • Analog DC bus voltage metering • Analog AC input current metering (Phase A only) Note: The bus voltmeter and/or AC input ammeter are mounted in a special wireway meter cover that is angled for easy viewing. •...

  • Page 24: Packaging Options

    1-10 Overview Packaging Options • Tin-plated control bus mounted in rear of cabinet above the power bus Note: Control bus is included as part of the control power source upgrade options. • Depth of DC bus and control bus (if supplied) at 16.9 inches in 180 and 350A DC (current codes A and B) units •...

  • Page 25: 180A Dc System Layout

    Chapter Your 180A DC NRU (Current Code A) Input Voltage Rated DC Bus This chapter provides the following information for the 180A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 2.1) • a typical electrical schematic (Figure 2.2) •...

  • Page 26: 180A Dc Nru Electrical Schematic

    Your 180A DC NRU (Current Code A) 180A DC NRU Electrical Schematic Figure 2.2 Typical 180A DC NRU Schematic 3-Phase AC Input MCP1 Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU POWER CONTROL POWER L2 (-) CURRENT ANALOG INPUTS INPUT...
  • Page 27 Your 180A DC NRU (Current Code A) Important: The Powermonitor II standard configuation works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 28 Your 180A DC NRU (Current Code A) Table 2.A: 180A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 200A Bridge suppressor capacitor 3 uF, 2000V CH11 DC choke 611 uH...
  • Page 29 Chapter Your 350A DC NRU (Current Code B) Input Voltage Rated DC Bus This chapter provides the following information for the 350A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 3.1) • a typical electrical schematic (Figure 3.2) •...

  • Page 30: Your 350A Dc Nru (Current Code B)

    Your 350A DC NRU (Current Code B) 350A DC NRU Electrical Schematic Figure 3.2 Typical 350A DC NRU Schematic 3-Phase AC Input MCP1 Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU POWER CONTROL POWER L2 (-) CURRENT ANALOG INPUTS INPUT...
  • Page 31 Your 350A DC NRU (Current Code B) Important: The Powermonitor II standard configuration works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 32 Your 350A DC NRU (Current Code B) Table 3.A: 350A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 400A Bridge suppressor capacitor 32 uF, 2000V CH11 DC choke 319 uH...

  • Page 33: 900A Dc System Layout

    Chapter Your 900A DC NRU (Current Code C) Input Voltage Rated DC Bus This chapter provides the following information for the 900A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 4.1) • a typical electrical schematic (Figure 4.2) •...

  • Page 34: 900A Dc Nru Electrical Schematic

    Your 900A DC NRU (Current Code C) 900A DC NRU Electrical Schematic Figure 4.2 Typical 900A DC NRU Schematic 3-Phase AC Input Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU POWER CONTROL POWER L2 (-) CURRENT ANALOG INPUTS INPUT ACOM...
  • Page 35 Your 900A DC NRU (Current Code C) Important: The Powermonitor II standard configuration works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 36 Your 900A DC NRU (Current Code C) Table 4.A: 900A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 1000A Circuit Breaker 1200A R-frame breaker with 1200A plug CH11 DC choke 124 uH...

  • Page 37: 1500A Dc System Layout

    Chapter Your 1500A DC NRU (Current Code D) Input Voltage Rated DC Bus This chapter provides the following information for the 1500A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 5.1) • a typical electrical schematic (Figure 5.2) 1163 •...

  • Page 38: 1500A Dc Nru Electrical Schematic

    Your 1500A DC NRU (Current Code D) 1500A DC NRU Electrical Figure 5.2 Typical 1500A DC NRU Schematic Schematic 3-Phase AC Input Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU P O W E R CONTROL POWER L2 (-) CURRENT ANALOG...
  • Page 39 Your 1500A DC NRU (Current Code D) Important: The Powermonitor II standard configuration works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 40 Your 1500A DC NRU (Current Code D) Table 5.A: 1500A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 1500A Circuit breaker 2000A R-frame breaker with 1600A plug CH11 DC choke 72 uH...

  • Page 41: Your 2000A Dc Nru (Current Code E)

    Chapter Your 2000A DC NRU (Current Code E) Input Voltage Rated DC Bus This chapter provides the following information for the 2000A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 6.1) 1020 • a typical electrical schematic (Figure 6.2) 1240 1550 •...

  • Page 42: 2000A Dc Nru Electrical Schematic

    Your 2000A DC NRU (Current Code E) 2000A DC NRU Electrical Figure 6.2 Typical 2000A DC NRU Schematic Schematic 3-Phase AC Input Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU POWER CONTROL POWER L2 (-) CURRENT ANALOG INPUTS INPUT ACOM...
  • Page 43 Your 2000A DC NRU (Current Code E) Important: The Powermonitor II standard configuration works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 44 Your 2000A DC NRU (Current Code E) Table 6.A: 2000A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 2000A Circuit breaker 2000A R-frame breaker with 2000A plug CH11 DC choke 56 uH...

  • Page 45: 2500A Dc System Layout

    Chapter Your 2500A DC NRU (Current Code F) Input Voltage Rated DC Bus This chapter provides the following information for the 2500A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 7.1) 1275 • a typical electrical schematic (Figure 7.2) 1550 1938 •...

  • Page 46: 2500A Dc Nru Electrical Schematic

    Your 2500A DC NRU (Current Code F) 2500A DC NRU Electrical Figure 7.2 Typical 2500A DC NRU Schematic Schematic 3-Phase AC Input Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU POWER CONTROL POWER L2 (-) CURRENT ANALOG INPUTS INPUT ACOM...
  • Page 47 Your 2500A DC NRU (Current Code F) Important: The Powermonitor II standard configuration works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 48 Your 2500A DC NRU (Current Code F) Table 7.A: 2500A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 3000A Circuit breaker 3000A R-frame breaker with 2500A plug CH11 DC choke 44 uH...

  • Page 49: 3000A Dc System Layout

    Chapter Your 3000A DC NRU (Current Code G) Input Voltage Rated DC Bus This chapter provides the following information for the 3000A DC (V AC) NRU: • a typical cabinet layout diagram (Figure 8.1) 1530 • a typical electrical schematic (Figure 8.2) 1860 2325 •...

  • Page 50: 3000A Dc Nru Electrical Schematic

    Your 3000A DC NRU (Current Code G) 3000A DC NRU Electrical Figure 8.2 Typical 3000A DC NRU Schematic Schematic 3-Phase AC Input Powermonitor II MASTER MODULE BULL 1403-MM05A L1 (+) 115 VAC NRU POWER CONTROL POWER L2 (-) CURRENT ANALOG INPUTS INPUT ACOM...
  • Page 51 Your 3000A DC NRU (Current Code G) Important: The Powermonitor II standard configuration works with grounded-wye secondary supplies only. For more information on Powermonitor II configurations for other supply types, consult Powermonitor II documentation and the Power Quality and Automation group located in Milwaukee, WI, USA.
  • Page 52 Your 3000A DC NRU (Current Code G) Table 8.A: 3000A DC NRU Symbol-to-Component Cross Reference AC 3-Phase Input Voltage Symbol Description Option 230V AC 380V AC 460V AC 575V AC Ammeter monitoring L1 3000A Circuit breaker 3000A R-frame breaker with 3000A plug CH11 DC choke 37 uH...

  • Page 53: Installing Your Nru

    Documentation • drive system schematics • this manual • Rockwell Automation publication 2300-5.1 (if using a 2300 system) or Rockwell Automation publication S-3062 (if using FD86N cabinets) • Rockwell Automation publication 2100-5.5 Equipment •...

  • Page 54: Installation Procedure

    Installing Your NRU Installation Procedure ATTENTION: To avoid the hazard of electrical shock, verify that all voltages on the system bus network have been discharged before attempting to service the system. ATTENTION: Be sure to obey all local electrical codes when installing your drive system. This installation procedure provides guidelines that can be used in the case that codes do not exist.
  • Page 55 Installing Your NRU 7. Set the trip unit of the motor circuit protector/circuit breaker according to manufacturer’s instructions or per the recommended settings provided in Appendix C of this manual. Reference the system schematics for the rated current levels. 8. On the phase loss relay, set initial settings on the three knobs as follows: UNDERVOLTAGE and TIME DELAY ON UNDER- VOLTAGE to minimum (CCW);...

  • Page 56: Ground-Fault Detection Option

    Installing Your NRU Ground-Fault Detection Option If the ground-fault detection metering option is supplied on your unit, perform the following procedures. Note: The ground-fault detection relay can be implemented only if the power transformer has a resistive grounded-wye secondary with a resistance of 150 to 300 ohms (1–2A of current during a solid ground fault).

  • Page 57: Nru Checks Before Power Up

    Installing Your NRU NRU Checks Before Power Up ATTENTION: You must perform the checks described in this section before turning power on to the system. Failure to do so may result in personal injury and/or equipment damage. ATTENTION: You must not turn on the power if the NRU fails any of the checks described in this section.

  • Page 58: Nru Checks After Power Up

    Installing Your NRU NRU Checks After Power Up ATTENTION: You must not proceed with regular operation if the NRU fails any of the checks described in this section. Failure to do so may result in personal injury and/or equipment damage. 1.
  • Page 59 Installing Your NRU 3. Verify that the voltage across X1 to X2 (the secondary side) of PT2 (the control power transformer) is within the specified toler- ance: Nominal AC Control Minimum AC Control Maximum AC Control Voltage (V AC) Voltage (V AC) Voltage (V AC) 4.
  • Page 60 Installing Your NRU This page intentionally left blank. Publication 2364E-5.01 April 2002...

  • Page 61: Troubleshooting

    Chapter Troubleshooting This chapter provides a checklist to use when troubleshooting your NRU. Before You Begin Before you begin, be sure to have the items in the following list: Documentation • drive system schematics • this manual Tools • a means to connect AC line power to the drive system •...

  • Page 62: Checklist For Troubleshooting

    10-2 Troubleshooting Checklist for Troubleshooting The following table provides a checklist to help you identify the cause of your NRU problem. Your NRU Figure 10.1 Troubleshooting Chart Type of Problem Loss of DC Bus Loss of DC Bus Loss of Control Power &...

  • Page 63: Specifications

    Appendix Specifications This appendix provides Bulletin 2364E NRU physical, electrical, environmental, and functional specifications. Physical Specifications Table A: NRU Physical Dimensions Output Current Current Number of Height Overall Width Overall Depth (A DC) Code MCC Sections 90" (2286 mm) 25" (635 mm) 20"...

  • Page 64: Electrical Specifications

    Specifications Electrical Specifications Table C: NRU Electrical Specifications Maximum Control Transformer kVA Ratings Nominal Input Continuous Nominal DC Continuous DC Rated DC Optional Standard Optional Extra Voltage (V AC) Input Current Bus Voltage Bus Current Current Bus kW Basic Capacity Capacity for Capacity for (A AC)

  • Page 65: Functional Specifications

    Specifications Functional Specifications Table D: NRU Functional Specifications AC Input Frequency Tolerance 45 to 65 Hz AC Input Voltage Tolerance ± 10% 150% maximum DC bus current for 60 seconds, Overload Capability 200% for 10 seconds following continuous operation 1 minute out of 20 minutes at rated load and Overload Duty Cycle temperature Minimum Continuous Load Requirement...

  • Page 66: Input Currents Of Nru With Control Source Upgrade Options

    Specifications Input Currents of NRU with Control Source Upgrade Options Table E: Input Currents of NRUs with a Control Power Upgrade Option Continuous Input Current of NRU with Continuous Input Current of NRU with Nominal Input Current Standard Capacity Control Source Extra Capacity Control Source Upgrade Voltage (V AC) Code...

  • Page 67: Thru Bus Ratings Per Unit

    Specifications Thru Bus Ratings per Unit Table F: Current Ratings of DC Thru Bus Unit DC Bus Thru Bus Rating Current (A DC) (A DC) 1600 1500 1600 2000 3000 2500 3000 3000 3000 Environmental Specifications Operating Conditions Table G: NRU Operating Conditions Altitude 1000 meters (3,300 ft) Ambient Temperature...
  • Page 68 Specifications Figure 2 Temperature Derate Curve % of NRU 100% Rated Amps at Sea Level 0°C 5°C 10°C 15°C 20°C 25°C 30°C 35°C 40°C 45°C 50°C 55°C (32°F) (41°F) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F) (113°F) (122°F) (131°F) Ambient Temperature Table H: Operating Sound Level DC Bus Current Current...
  • Page 69 Specifications Figure 3 180A and 350A DC NRU Watts Dissipation versus % Load 1 8 0 0 1 6 0 0 1 4 0 0 1 2 0 0 3 5 0 A D C N R U 1 0 0 0 8 0 0 6 0 0 1 8 0 A D C N R U...

  • Page 70: Storage Conditions

    Specifications Figure 5 1500A and 2000A DC NRU Watts Dissipation versus % Load 7 0 0 0 6 0 0 0 5 0 0 0 2 0 0 0 A D C N R U 4 0 0 0 3 0 0 0 1 5 0 0 A D C N R U 2 0 0 0 1 0 0 0...

  • Page 71: Nru Catalog Numbers And Spare Parts Kits

    Appendix NRU Catalog Numbers and Spare Parts Kits This appendix provides a description of NRU catalog numbers and lists available spare parts kits. Understanding Catalog Numbers Catalog numbers consist of various components that make up a 2364 unit. Each character of the catalog number helps identify a specific NRU.

  • Page 72: Nru Catalog Numbers

    NRU Catalog Numbers and Spare Parts Kits NRU Catalog Numbers Bulletin Unit Wiring Current AC Input Line Trip Number Type Type Rating Enclosure Device Options Voltage 2364 E = N R U A = “ A ” type A = 180A DC output B = 350A DC output C = 900A DC output D = 1500A DC output...
  • Page 73 NRU Catalog Numbers and Spare Parts Kits Footnotes System utilization voltages. Multiple option numbers must be separated by a dash and added to the base catalog number in ascending order. Each NRU includes a basic capacity control transformer that supplies the NRU with control power. Control power source options allow you to select a higher capacity control transformer for control bus applications.

  • Page 74: Bulletin 2364E Nru

    NRU Catalog Numbers and Spare Parts Kits Bulletin 2364E NRU These spare parts kits are designed to provide you with the necessary parts to repair and maintain your NRU. Spare Parts Kits What Does a Spare Parts Kit Include? An NRU spare parts kit includes the items in the quantities described in Tables A, B, C, and D.

  • Page 75: Definition Of Terms Used To Describe "Qty In Kit

    NRU Catalog Numbers and Spare Parts Kits Definition of Terms Used to Describe "Qty in Kit" The column "Qty in Kit" in Tables F, G, H, and J represents how many components you can expect to find as follow: Type of Kit Example "Qty in Kit"...
  • Page 76 NRU Catalog Numbers and Spare Parts Kits Table A: Spare Parts Kits for NRUs with 230V AC Inputs Level Catalog Number Description Qty in Kit Control Fuses: Control Transformer Primary, Phase-Loss, DC Bus Energized PCB, 2364E, 2364-SPE13A 2 sets 1 kVA XFMR, 230V AC / 310V DC, 180 - 2000A DC Control Fuses: Control Transformer Primary, Control Bus, Phase-Loss, DC Bus Energized 2364-SPE14A 2 sets...
  • Page 77 NRU Catalog Numbers and Spare Parts Kits Table B: Spare Parts Kits for NRUs with 380V AC Inputs Level Catalog Number Description Qty in Kit Control Fuses: Control Transformer Primary, Phase-Loss, DC Bus Energized PCB, 2364E, 2364-SPE23A 2 sets 1 kVA XFMR, 380V AC / 510V DC, 180 - 2000A DC Control Fuses: Control Transformer Primary, Control Bus, Phase-Loss, DC Bus Energized 2364-SPE24A 2 sets...
  • Page 78 NRU Catalog Numbers and Spare Parts Kits Table C: Spare Parts Kits for NRUs with 460V AC Inputs Level Catalog Number Description Qty in Kit Control Fuses: Control Transformer Primary, Phase-Loss, DC Bus Energized PCB, 2364E, 2364-SPE33A 2 sets 1 kVA XFMR, 460V AC / 620V DC, 180 - 2000A DC Control Fuses: Control Transformer Primary, Control Bus, Phase-Loss, DC Bus Energized 2364-SPE34A 2 sets...
  • Page 79 NRU Catalog Numbers and Spare Parts Kits Table D: Spare Parts Kits for NRUs with 575V AC Inputs Level Catalog Number Description Qty in Kit Control Fuses: Control Transformer Primary, Phase-Loss, DC Bus Energized PCB, 2364E, 2364-SPE43A 2 sets 1 kVA XFMR, 575V AC / 775V DC, 180 - 2000A DC Control Fuses: Control Transformer Primary, Control Bus, Phase-Loss, DC Bus Energized 2364-SPE44A 2 sets...
  • Page 80 B-10 NRU Catalog Numbers and Spare Parts Kits This page intentionally left blank. Publication 2364E-5.01 April 2002...

  • Page 81: Nru Details

    Appendix NRU Details This appendix provides Bulletin 2364E NRU details: • wireway meter cover details • AC input connections Wireway Meter Cover Details Figure 1 shows the location and sizes of holes that can be made for the mounting of meters in the wireway meter cover. Figure 1 Details of Meter-Mounting Holes 2.250...
  • Page 82 NRU Details The quantity of meters that can be mounted on any given meter cover depends upon the meter cover width. Table A: Meter Wireway Cover Description DC Bus Current NRU Current For wireway meter cover, (A DC) Code see: 180, 350 A, B Figure 2...

  • Page 83: Mcc Ac Input Entry Area

    NRU Details MCC AC Input Entry Area MCC top plates are removable for the punching of AC input entry holes. Each MCC has a top plate. Please refer to the following illustration for information on available entry area and information given in Chapter 9, or the installation instructions.

  • Page 84: Ac Input Customer Connection Details

    NRU Details AC Input Customer Connection The type of AC input connection depends upon the NRU current rating. Details Table C: AC Input Customer Connection Details Typical AC Input Wire Sizing DC Bus Current NRU Current Type of AC Input Connection (per Phase) Based on 125% of (A DC) Code...

  • Page 85: Recommended Disconnect Trip Settings

    NRU Details Recommended Disconnect Trip Table D: Recommended Disconnect Trip Settings Settings DC Bus Current NRU Current Recommended Setting(s) Disconnect Description (A DC) Code shown in: Motor Circuit Protector: 250A, Figure 6 J-frame Motor Circuit Protector: 400A, Figure 6 K-frame Circuit Breaker: 1200A Figure 7 R-frame with 1200A plug...
  • Page 86 NRU Details Figure 8 1500 and 2000A DC NRU Recommended Circuit Breaker Settings Short Delay Pickup Figure 9 2500 and 3000A DC NRU Recommended Circuit Breaker Settings Long Delay Long Delay Setting (I Time 1 x I 6 x I Breaker Trips At 6T Test Amps...

  • Page 87: Phase-Loss Relay

    NRU Details Phase-Loss Relay The phase-loss relay monitors the system for undervoltage, overvoltage, and phase unbalance occurrences. Figure 10 illustrates the phase-loss relay wiring diagram and defines the relay terminals. Figure 10 Phase-Loss Relay Wiring Diagram Phases 11 21 12 14 22 24 Installation and Setup 1.

  • Page 88: Monitor Operation

    NRU Details 6. Set the IMBALANCE dial. This setting should be the maximum allowable imbalance in phase voltage that the 3-phase system can tolerate. Too low of a setting can cause nuisance tripping. Too high of a setting may not adequately protect the system. 7.

  • Page 89: Mcc Bus Location Details

    NRU Details MCC Bus Location Details Table E provides a list of available DC bus and control bus depths while Figure 11 provides a bus location illustration. Table E: Available DC Bus and Control Bus Depths Available Depths for DC Bus DC Bus Current NRU Current NRU Input Selection Width...
  • Page 90 C-10 NRU Details This page intentionally left blank. Publication 2364E-5.01 April 2002...
  • Page 91 Index altitude, A-5 FD86N enclosures See enclosures features, electrical system, 1-7 bridge, packaging, 1-7 See diode bridge 1-4 functional specifications, A-3 Bulletin numbers, See catalog numbers ground fault detection meter, setting, 9-4, 9-7 catalog numbers, B-1 choke, DC bus 1-4 circuit breaker, heat dissipation, settings, C-6...
  • Page 92 I–2 Index setup, See installation NRU catalog numbers, See catalog numbers shipping weights, A-1 NRU, sound level, A-6 description, 1-1 spare parts, B-4 specifications, electrical, A-2 environmental, A-5 operating conditions, functional, A-3 See specifications, environmental physical, A-1 options startup, electrical system 1-9 See installation options, storage conditions...
  • Page 93 Americas: Rockwell Automation, 1201 South Second Street, Milwaukee, WI 53204-2496 USA, Tel: (1) 414.382.2000, Fax: (1) 414.382.4444 Europe/Middle East/Africa: Rockwell Automation SA/NV, Vorstlaan/Boulevard du Souverain 36, 1170 Brussels, Belgium, Tel: (32) 2 663 0600, Fax: (32) 2 663 0640 Asia Pacific: Rockwell Automation, 27/F Citicorp Centre, 18 Whitfield Road, Causeway Bay, Hong Kong, Tel: (852) 2887 4788, Fax: (852) 2508 1846 Headquarters for Dodge and Reliance Electric Products Americas: Rockwell Automation, 6040 Ponders Court, Greenville, SC 29615-4617 USA, Tel: (1) 864.297.4800, Fax: (1) 864.281.2433...

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