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Rackmount Programmable DC Power Supplies · PDF fileRackmount Programmable DC Power Supplies 200W/400W/800W Built-in USB, ... 5.5.2 Basic Parallel Operation ... USER MANUAL INDEX 128

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  • USER MANUAL

    This Manual Covers Models:

    RMX-4101 RMX-4102 RMX-4104

    Rackmount Programmable DC Power Supplies

    200W/400W/800W

    Built-in USB, RS-232, RS-485, LAN Interface

    RMX-410x

    NATIONAL INSTRUMENTS

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  • Table of Contents

    CHAPTER 1: GENERAL INFORMATION 131.1 User Manual Content ................................................................................................................. 131.2 Introduction................................................................................................................................... 13

    1.2.1 General Description ......................................................................................................... 131.2.3 Features and Options ...................................................................................................... 131.2.4 Multiple Output Power System .................................................................................... 141.2.6 Analog Voltage Programming and Monitoring ..................................................... 141.2.7 Parallel Operation ............................................................................................................. 141.2.8 Output Connections ........................................................................................................ 141.2.9 Cooling and Mechanical Construction ...................................................................... 141.3.1 General .................................................................................................................................. 151.3.2 Serial Link Cable ................................................................................................................ 151.3.3 Misc. Hardware .................................................................................................................. 151.3.4 AC Cables .............................................................................................................................. 151.3.5 Serial Port Cables ............................................................................................................... 15

    CHAPTER 2: SPECIFICATIONS 162.1 RMX-4101 Series Specifications .............................................................................................. 172.2 RMX-4102 Series Specifications .............................................................................................. 212.3 RMX-4104 Series Specifications ............................................................................................. 252.4 RMX-410x Mechanical ................................................................................................................ 28

    2.4.1 Rackmount Dimensions ................................................................................................... 29

    CHAPTER 3: INSTALLATION 313.1 General ............................................................................................................................................ 313.2 Preparation for Use ..................................................................................................................... 313.3 Initial Inspection .......................................................................................................................... 313.4 Rackmount ..................................................................................................................................... 313.5 Location, Mounting and Cooling ........................................................................................... 32

    3.5.1 Power Supply Rear Support Bracket ........................................................................... 323.6 AC Source Requirements .......................................................................................................... 323.7 AC Input Power Connection .................................................................................................... 32

    3.7.1 AC Input Connector ........................................................................................................... 323.7.2 AC Input Cord ...................................................................................................................... 33

    3.8 Turn-On Checkout Procedure ................................................................................................. 333.8.1 General ................................................................................................................................... 333.8.2 Prior to Operation .............................................................................................................. 333.8.3 Constant Voltage Check .................................................................................................. 343.8.4 Constant Current Check .................................................................................................. 343.8.5 OVP Check ............................................................................................................................ 343.8.6 UVL Check ............................................................................................................................ 343.8.7 Foldback Check .................................................................................................................. 35

    3.9 Connecting the Load .................................................................................................................. 353.9.1 Load Wiring .......................................................................................................................... 353.9.2 Current Carrying Capacity .............................................................................................. 353.9.3 Wire Termination ................................................................................................................ 373.9.4 Noise and Impedance Effects ........................................................................................ 373.9.5 Inductive Loads .................................................................................................................. 373.9.6 Making the Load Connections ...................................................................................... 373.9.7 Connecting Single Loads, Local Sensing (default) ................................................. 393.9.8 Connecting Single Loads, Remote Sensing .............................................................. 393.9.9 Connecting Multiple Loads, Radial Distribution Method .................................... 40

  • 3.9.10 Multiple Load Connection with Distribution Terminals ..................................... 403.9.11 Grounding Outputs ......................................................................................................... 41

    3.10 Local and Remote Sensing ..................................................................................................... 413.10.1 Sense Wiring ...................................................................................................................... 413.10.2 Local Sensing ..................................................................................................................... 423.10.3 Remote Sensing................................................................................................................ 423.10.4 J2 Sense Connector Technical Information ............................................................ 43

    3.11 Repackaging for Shipment ..................................................................................................... 43

    CHAPTER 4: FRONT/REAR PANEL CONTROLS AND CONNECTORS 444.1 Introduction ...................................................................................................................................444.2 Front Panel Display and Controls .........................................................................................444.3 Rear Panel Connectors ..............................................................................................................46

    4.3.1 J1 Connector Terminal and Function ..........................................................................484.3.2 J3 Connector Terminal and Function ......................................................................... 49

    4.4 Front Panel Display Messages ................................................................................................. 504.5 Navigating the Main Menu ..................................................................................................... 51

    4.5.1 Introduction ......................................................................................................................... 514.5.2 Exiting the Main Menu ..................................................................................................... 52

    4.6 Navigating Communication Menu ........................................................................................ 524.6.1 Introduction ......................................................................................................................... 524.6.2 Exiting the Communication Menu ....