Document Outline

• Front Cover
• Summary of Changes
• Table of Contents
• Preface
• Chapter 1
  • Overview
    • What is the 2364E?
      • What does the NRU do?
      • How will the NRU fit into a 2362 drive system?
      • How will the NRU fit into a drive system packaged in FD86N enclosures?
    • How Does An NRU Work?
      • Primary Electrical Components of the NRU
        • Motor Circuit Protector
        • 3-Phase Circuit Breaker
        • AC Line, Current-Limiting Fuses
        • Six-Pulse, Full-Wave, 3-Phase-Diode-Bridge Rectifier Unit
        • DC Bus Choke
        • Control Power Transformer
        • Primary and Secondary Control Transformer Fusing
      • NRU Conceptual Schematic
        • Figure 1.1
      • Power Conversion Operation
        • Figure 1.2
    • Bulletin 2364E NRU – Standard Features
      • Electrical System Features
      • Packaging Features
    • Bulletin 2364E NRU – Standard Options
      • Electrical System Options
      • Packaging Options
• Chapter 2
  • Your 180A DC NRU (Current Code A)
    • 180A DC System Layout
      • Figure 2.1
    • 180A DC NRU Electrical Schematic
      • Figure 2.2
        • Table 2.A: 180A DC NRU Symbol-to-Component Cross Reference
• Chapter 3
  • Your 350A DC NRU (Current Code B)
    • 350A DC System Layout
      • Figure 3.1
    • 350A DC NRU Electrical Schematic
      • Figure 3.2
        • Table 3.A: 350A DC NRU Symbol-to-Component Cross Reference
• Chapter 4
  • Your 900A DC NRU (Current Code C)
    • 900A DC System Layout
      • Figure 4.1
    • 900A DC NRU Electrical Schematic
      • Figure 4.2
        • Table 4.A: 900A DC NRU Symbol-to-Component Cross Reference
• Chapter 5
  • Your 1500A DC NRU (Current Code D)
    • 1500A DC System Layout
      • Figure 5.1
    • 1500A DC NRU Electrical Schematic
      • Figure 5.2
        • Table 5.A: 1500A DC NRU Symbol-to-Component Cross Reference
• Chapter 6
  • Your 2000A DC NRU (Current Code E)
    • 2000A DC System Layout
      • Figure 6.1
    • 2000A DC NRU Electrical Schematic
      • Figure 6.2
        • Table 6.A: 2000A DC NRU Symbol-to-Component Cross Reference
• Chapter 7
  • Your 2500A DC NRU (Current Code F)
    • 2500A DC System Layout
      • Figure 7.1
    • 2500A DC NRU Electrical Schematic
      • Figure 7.2
        • Table 7.A: 2500A DC NRU Symbol-to-Component Cross Reference
• Chapter 8
  • Your 3000A DC NRU (Current Code G)
    • 3000A DC System Layout
      • Figure 8.1
    • 3000A DC NRU Electrical Schematic
      • Figure 8.2
        • Table 8.A: 3000A DC NRU Symbol-to-Component Cross Reference
• Chapter 9
  • Installing Your NRU
    • Before You Begin
      • Documentation
      • Equipment
      • Tools
    • Installation Procedure
      • 1.
      • 2. Remove the lifting angle (if present) that is secured to the top of the NRU.
      • 3. Plan where to punch holes for AC input entry. Refer to Appendix C for top plate clearance info...
      • 4. Remove the top plate from the MCC.
      • 5. Punch desired holes for AC input entry.
      • 6. Connect top plate to NRU.
      • 7. Set the trip unit of the motor circuit protector/circuit breaker according to manufacturer’s i...
      • 8. Set initial settings on the three knobs as follows: UNDERVOLTAGE and TIME DELAY ON UNDERVOLTAG...
      • Ground-Fault Detection Option
        • 1. Connect terminals TB2-1 and TB2-2 across the power transformer grounding resistor, in accordan...
        • 2. Turn the set screw until the black indicator needle aligns with the 0 (zero) mark as shown in ...
          • Figure 9.1
    • NRU Checks Before Power Up
      • 1. Verify that the NRU does not have any mechanical damage.
      • 2. Verify that the NRU does not have any loose wires or buswork.
      • 3. Using an ohmmeter or other continuity testing device, verify that shorts do not exist between:
    • NRU Checks After Power Up
      • 1. Verify that the incoming phase-to-phase line voltage is within the specified tolerances:
      • 2. The common DC bus voltage will vary based upon the 3-phase AC input voltage. Verify that the c...
        • Figure 9.2
      • 3. Verify that the voltage across X1 to X2 (the secondary side) of PT2 (the control power transfo...
      • 4. Verify that the diode bridge fan is running and blowing air over the bridge.
      • 5. Verify that the "DC Bus Energized" pilot light (PL1) is illuminated.
      • 6. Verify that the "Not Faulted" pilot light (PL2), if supplied, is illuminated. If it is not ill...
      • 7. Perform the set up of the Powermonitor II, if supplied, per the manufacturer’s instructions.
      • 8. If the ground fault detection meter is supplied, set the red warning indicator needle 50V high...
        • Figure 9.3
• Chapter 10
  • Troubleshooting
    • Before You Begin
      • Documentation
      • Tools
    • Safety Precautions
    • Checklist for Troubleshooting Your NRU
      • Figure 10.1
• Appendix A
  • Specifications
    • Physical Specifications
      • Table A: NRU Physical Dimensions
    • Approximate Shipping Weights
      • Table B: Approximate Shipping Weights
    • Electrical Specifications
      • Table C: NRU Electrical Specifications
      • Functional Specifications
        • Table D: NRU Functional Specifications
      • Input Currents of NRU with Control Source Upgrade Options
        • Table E: Input Currents of NRUs with a Control Power Upgrade Option
      • Thru Bus Ratings per Unit
        • Table F: Current Ratings of DC Thru Bus
    • Environmental Specifications
      • Operating Conditions
        • Table G: NRU Operating Conditions
        • Figure 1
        • Figure 2
          • Table H: Operating Sound Level
        • Figure 3
        • Figure 4
        • Figure 5
        • Figure 6
      • Storage Conditions
        • Table I: NRU Storage Conditions
• Appendix B
  • NRU Catalog Numbers and Spare Parts Kits
• Appendix C
  • NRU Details
    • Wireway Meter Cover Details
      • Figure 1
        • Table A: Meter Wireway Cover Description
      • Figure 2
      • Figure 3
    • MCC AC Input Entry Area
      • Table B: MCC Input Entry Area
      • Figure 4
    • AC Input Customer Connection Details
      • Table C: AC Input Customer Connection Details
      • Figure 5
    • Recommended Disconnect Trip Settings
      • Table D: Recommended Disconnect Trip Settings
      • Figure 6
      • Figure 7
      • Figure 8
      • Figure 9
    • Phase-Loss Relay
      • Figure 10
      • Installation and Setup
        • 1. Set initial settings on the three knobs as follows: UNDERVOLTAGE and TIME DELAY ON UNDERVOLTAG...
        • 2. Connect the fused 3-phase line voltage to terminals A, B, and C on the D65 - see Figure 10. A ...
        • 3. Apply Line Voltage. The LED indicator should illuminate and stay steady. If the LED flashes, a...
        • 4. REMOVE LINE VOLTAGE for Steps 4-6. Set the UNDERVOLATAGE dial. This setting should be the same...
        • 5. Set the TIME DELAY ON UNDERVOLTAGE dial. This is the maximum time period that an undervoltage ...
        • 6. Set the IMBALANCE dial. This setting should be the maximum allowable imbalance in phase voltag...
        • 7. Connect the output terminals as shown in Figure 10.
        • 8. When all connections have been made, apply Line Voltage. The light emitting diode (LED) indica...
        • 9. If the LED flashes during regular operation, one of the four fault conditions has occurred. RE...
      • Monitor Operation
      • Reset
    • MCC Bus Location Details
      • Table E: Available DC Bus and Control Bus Depths
      • Figure 11
• Index
• Back Cover