RMX-410x Rackmount Programmable DC Power Supplies 200W/400W/800W Built-in USB, RS-232, RS-485, LAN Interface USER MANUAL This Manual Covers Models: RMX-4101 RMX-4102 RMX-4104 NATIONAL INSTRUMENTS Worldwide Technical Support and Product Information ni.com Worldwide Offices Visit ni.com/niglobal to access the branch office websites, which provide up-to-date contact information, support phone numbers, email addresses, and current events. National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 683 0100 For further support information, refer to the NI Services appendix. To comment on NI documentation, refer to the NI website at ni.com/info and enter the Info Code feedback. © 2017-2020 National Instruments. All rights reserved. Table of Contents CHAPTER 1: GENERAL INFORMATION 13 1.1 User Manual Content ................................................................................................................. 13 1.2 Introduction................................................................................................................................... 13 1.2.1 General Description ......................................................................................................... 13 1.2.3 Features and Options ...................................................................................................... 13 1.2.4 Multiple Output Power System .................................................................................... 14 1.2.6 Analog Voltage Programming and Monitoring ..................................................... 14 1.2.7 Parallel Operation ............................................................................................................. 14 1.2.8 Output Connections ........................................................................................................ 14 1.2.9 Cooling and Mechanical Construction ...................................................................... 14 1.3.1 General .................................................................................................................................. 15 1.3.2 Serial Link Cable ................................................................................................................ 15 1.3.3 Misc. Hardware .................................................................................................................. 15 1.3.4 AC Cables .............................................................................................................................. 15 1.3.5 Serial Port Cables ............................................................................................................... 15 CHAPTER 2: SPECIFICATIONS 16 2.1 RMX-4101 Series Specifications .............................................................................................. 17 2.2 RMX-4102 Series Specifications .............................................................................................. 21 2.3 RMX-4104 Series Specifications .............................................................................................25 2.4 RMX-410x Mechanical ................................................................................................................28 2.4.1 Rackmount Dimensions ...................................................................................................29 CHAPTER 3: INSTALLATION 30 3.1 General ............................................................................................................................................30 3.2 Preparation for Use .....................................................................................................................30 3.3 Initial Inspection ..........................................................................................................................30 3.4 Rackmount .....................................................................................................................................30 3.5 Location, Mounting and Cooling ........................................................................................... 31 3.5.1 Rackmount Installation .................................................................................................... 31 3.6 AC Source Requirements ..........................................................................................................32 3.7 AC Input Power Connection ....................................................................................................32 3.7.1 AC Input Connector ...........................................................................................................33 3.7.2 AC Input Cord ......................................................................................................................33 3.8 Turn-On Checkout Procedure .................................................................................................33 3.8.1 General ...................................................................................................................................33 3.8.2 Prior to Operation ..............................................................................................................33 3.8.3 Constant Voltage Check ..................................................................................................34 3.8.4 Constant Current Check ..................................................................................................34 3.8.5 OVP Check ............................................................................................................................34 3.8.6 UVL Check ............................................................................................................................34 3.8.7 Foldback Check ..................................................................................................................35 3.9 Connecting the Load ..................................................................................................................35 3.9.1 Load Wiring ..........................................................................................................................35 3.9.2 Current Carrying Capacity ..............................................................................................35 3.9.3 Wire Termination ................................................................................................................37 3.9.4 Noise and Impedance Effects ........................................................................................37 3.9.5 Inductive Loads ..................................................................................................................37 3.9.6 Making the Load Connections ......................................................................................37 3.9.7 Connecting Single Loads, Local Sensing (default) .................................................39 3.9.8 Connecting Single Loads, Remote Sensing ..............................................................39 3.9.9 Connecting Multiple Loads, Radial Distribution Method ....................................40 3.9.10 Multiple Load Connection with Distribution Terminals .....................................40 3.9.11 Grounding Outputs ......................................................................................................... 41 3.10 Local and Remote Sensing ..................................................................................................... 41 3.10.1 Sense Wiring ...................................................................................................................... 41 3.10.2 Local Sensing .....................................................................................................................42 3.10.3 Remote Sensing................................................................................................................42 3.10.4 J2 Sense Connector Technical Information ............................................................43 3.11 Repackaging for Shipment .....................................................................................................43 CHAPTER 4: FRONT/REAR PANEL CONTROLS AND CONNECTORS 44 4.1 Introduction ...................................................................................................................................44 4.2 Front Panel Display and Controls .........................................................................................44 4.3 Rear Panel Connectors ..............................................................................................................46 4.3.1 J1 Connector Terminal and Function ..........................................................................48 4.3.2 J3 Connector Terminal and Function .........................................................................49 4.4 Front Panel Display Messages .................................................................................................50 4.5 Navigating the Main Menu ..................................................................................................... 51 4.5.1 Introduction ......................................................................................................................... 51 4.5.2 Exiting the Main Menu .....................................................................................................52 4.6 Navigating Communication Menu ........................................................................................52