National Instruments RMX-410 Series User manual

RMX-4101

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 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 31
3.1 General ............................................................................................................................................ 31
3.2 Preparation for Use..................................................................................................................... 31
3.3 Initial Inspection .......................................................................................................................... 31
3.4 Rackmount..................................................................................................................................... 31
3.5 Location, Mounting and Cooling........................................................................................... 32
3.5.1 Power Supply Rear Support Bracket ........................................................................... 32
3.6 AC Source Requirements.......................................................................................................... 32
3.7 AC Input Power Connection .................................................................................................... 32
3.7.1 AC Input Connector ........................................................................................................... 32
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
4.6.1 Introduction......................................................................................................................... 52
4.6.2 Exiting the Communication Menu .............................................................................. 53
4.7 Navigating the Protection Menu ........................................................................................... 53
4.7.1 Introduction ......................................................................................................................... 53
4.7.2 Exiting the Protection Menu.......................................................................................... 53
CHAPTER 5: LOCAL OPERATION 54
5.1 Introduction...................................................................................................................................54
5.2 Standard Operation....................................................................................................................54
5.2.1 Constant Voltage Mode and Voltage Setting..........................................................54
5.2.2 Constant Current Mode and Current Setting.......................................................... 54
5.2.3 Automatic Crossover ........................................................................................................ 55
5.2.4 Output On/Off Control .................................................................................................... 55
5.2.5 Safe Start and Auto-Restart Modes............................................................................. 55
5.2.6 Viewing Software Revision............................................................................................. 55
5.3 Alarms and Protective Functions...........................................................................................56
5.3.1 Introduction.........................................................................................................................56
5.3.2 Over Voltage Protection..................................................................................................56
5.3.2.1 Setting the OVP Level ...................................................................................................56
5.3.2.2 Resetting the OVP Circuit............................................................................................ 57
5.3.3 Under Voltage Protection and Under Voltage Limit ............................................ 57
5.3.3.1 Setting the UVP/UVL Mode and Level .................................................................... 57
5.3.3.2 Activated UVP Alarm..................................................................................................... 57
5.3.4 Foldback Protection ......................................................................................................... 57
5.3.4.1 Setting the Foldback Protection..............................................................................58
5.3.4.2 Activated FOLD Alarm.................................................................................................. 58
5.3.5 Protection Delay.................................................................................................................58
5.3.5.1 Setting the Protection Delay......................................................................................58
5.3.6 Over Temperature Protection ....................................................................................... 58
5.3.7 AC Fail Alarm........................................................................................................................ 58
5.4 Series Operation .......................................................................................................................... 59
5.4.1 Series Connection for Increased Output Voltage................................................... 59
5.4.2 Series Connection for Positive and Negative Output Voltage .......................... 60
5.4.3 Remote Programming in Series Operation..............................................................60

5.5 Parallel Operation........................................................................................................................ 61
5.5.1 Introduction......................................................................................................................... 61
5.5.2 Basic Parallel Operation................................................................................................... 61
5.5.2.1 Master Unit Set Up ......................................................................................................... 61
5.5.2.2 Slave Unit Set Up............................................................................................................ 62
5.5.2.3 Setting Over Voltage Protection............................................................................... 62
5.5.2.4 Setting Foldback Protection ......................................................................................62
5.5.2.5 Connection to Load....................................................................................................... 62
5.5.3 Advanced Parallel Operation.........................................................................................64
5.5.3.1 Master Unit Set Up .........................................................................................................64
5.5.3.2 Slave Unit Set Up............................................................................................................64
5.6 Daisy-Chain Connection ........................................................................................................... 65
5.7 Rear Panel (J3 Connector) Functions and Settings.......................................................... 65
5.7.1 External Shut Off Function..............................................................................................66
5.7.2 Interlock Function - Analog On/Off. (Enable/Disable) ..........................................66
5.7.3 Auxiliary Programmed Function Pin 1 and Pin 2.................................................... 67
5.7.4 Power Supply OK Signal................................................................................................... 68
5.8 Rear Panel (J1 Connector) Functions....................................................................................68
5.8.1 CV/CC Signal.........................................................................................................................68
5.9 Parameter Setting Memory ..................................................................................................... 69
5.9.1 Default Setting ....................................................................................................................69
5.9.2 Reset .......................................................................................................................................69
5.9.3 Last Setting Memory ........................................................................................................ 69
5.9.4 Save <1..4>............................................................................................................................ 70
5.9.5 Recall <1..4> .........................................................................................................................70
CHAPTER 6: REMOTE ANALOG PROGRAMMING 72
6.1 Introduction...................................................................................................................................72
6.2 Local/Remote Analog Control................................................................................................72
6.3 Local/Remote Analog Indication........................................................................................... 72
6.4 Remote Voltage Programming of Output Voltage and Current ................................ 73
6.5 Remote Resistor Programming of Output Voltage and Output Current ................ 74
6.6 Programming Monitoring of Output Voltage (V_MON) and Current (I_MON).... 75
CHAPTER 7: Serial RS232/RS485 and USB Interface 76
7.1 Introduction ................................................................................................................................... 76
7.2 Configuration................................................................................................................................ 76
7.2.1 Default Setting .................................................................................................................... 76
7.2.2 Address Setting................................................................................................................... 76
7.2.3 Communication Interface Selection .......................................................................... 76
7.2.4 Baud Rate Setting............................................................................................................... 77
7.2.5 Language Selection (RS232/RS485, USB) .................................................................. 77
7.2.6 Setting Unit in Remote, Local Lockout or Local Mode .........................................77
7.3 Rear Panel RS232/485 Connector...........................................................................................78
7.4 Connectig Power Supply To RS232 Or RS485 BUS...........................................................79
7.5 Rear Panel USB Connector........................................................................................................80
7.5.1 USB Getting Started...........................................................................................................80
7.6 Multi Power Supply Connection to RS232, RS485, LAN, or USB.................................. 80
7.7 GEN Protocol (GEN series communication language) .................................................... 81
7.7.1 Data Format .......................................................................................................................... 81
7.7.2 End of Message....................................................................................................................81
7.7.3 Command Repeat............................................................................................................... 81
7.7. 4 Che ck su m .............................................................................................................................. 81
7.7.5 Acknowledge ....................................................................................................................... 81

7.7.6 Backspace.............................................................................................................................. 81
7.7.7 Error Mess ages ..................................................................................................................... 81
7.8 GEN Command Set Description.............................................................................................. 82
7.8.1 General guides ....................................................................................................................82
7.8.2 Command Set Categories ...............................................................................................82
7.8.3 Identification Commands ...............................................................................................82
7.8.4 Initialization Commands................................................................................................. 83
7.8.5 Output Commands............................................................................................................ 83
7.8.6 Global Output Commands .............................................................................................85
7.8.7 Auxiliary Commands......................................................................................................... 87
7.8.8 Status Commands.............................................................................................................. 87
7.9 Serial Communication Test Set-Up........................................................................................88
7.10 SCPI Protocol................................................................................................................................ 88
7.10.1 Data Format........................................................................................................................88
7.10.2 End of Message.................................................................................................................88
7.10.3 End of Command ............................................................................................................. 88
7.10.4 Checksum............................................................................................................................ 89
7.10.5 SCPI Requirements........................................................................................................... 89
7.10.6 SCPI Command Hierarchy ............................................................................................. 89
7.10.7 Header..................................................................................................................................89
7.10.8 Data Formats......................................................................................................................90
7.10.9 Character Data...................................................................................................................90
7.10.10 Commands Notes...........................................................................................................90
7.11 SCPI Common Commands......................................................................................................90
7.12 SCPI Subsystem Commands...................................................................................................95
7.12.1 Output Subsystem ...........................................................................................................95
7.12.2 Instrument Subsystem ...................................................................................................98
7.12.3 Voltage Subsystem ..........................................................................................................98
7.12.4 Current Subsystem..........................................................................................................100
7.12.5 Measure Subsystem........................................................................................................101
7.12.6 DISPlay Subsystem..........................................................................................................102
7.12.7 INITiate Subsystem .........................................................................................................103
7.12.8 LIST Subsystem ................................................................................................................103
7.12.9 STATus Subsystem ...........................................................................................................105
7.12.10 SYSTem Subsystem.......................................................................................................107
7.12.11 TRIGger Subsystem .......................................................................................................108
7.12.12 WAVE Subsystem ...........................................................................................................109
7.12.13 Global Subsystem.......................................................................................................... 110
7.13 Command Summary................................................................................................................ 111
CHAPTER 8: ADVANCED FUNCTIONS 115
8.1 Introduction.................................................................................................................................. 115
8.2 FIX Mode........................................................................................................................................ 115
8.3 LIST Mode...................................................................................................................................... 116
8.4 WAVE Mode .................................................................................................................................. 117
8.5 Trigger ............................................................................................................................................ 118
8.5.1 Input Trigger ....................................................................................................................... 118
8.5.2 Output Trigger................................................................................................................... 119
8.6 Transient Waveform Example ................................................................................................ 119
8.6.1 Wave Programing ............................................................................................................. 119
8.6.2 Wave Execution via Communication PC .................................................................. 119
8.6.3 Wave Execution via Front Panel .................................................................................120
8.7 Additional Examples .................................................................................................................120
8.7.1 List Example......................................................................................................................... 120

8.7.2 Waveform Example .......................................................................................................... 120
CHAPTER 9: STATUS, FAULT AND SRQ REGISTERS 121
9.1 General ...........................................................................................................................................121
9.2 Power Supply Status Structure ..............................................................................................122
9.3 Condition Registers ...................................................................................................................122
9.3.1 Fault Register .....................................................................................................................122
9.3.2 Status Register ...................................................................................................................123
9.4 Conditional, Enable and Event Registers ...........................................................................123
9.4.1 Conditional Registers.......................................................................................................123
9.4.2 Event Registers...................................................................................................................123
9.4.3 Enable Register ..................................................................................................................123
9.5 Service Request ..........................................................................................................................123
9.6 Standard Event Status Group .................................................................................................124
9.6.1 Register Functions ............................................................................................................124
9.6.2 Register Commands.........................................................................................................124
CHAPTER 10: MAINTENANCE 125
10.1 Introduction................................................................................................................................125
10.2 Units Under Warranty.............................................................................................................125
10.3 Periodic Maintenance.............................................................................................................125
10.4 Adjustments and Calibration...............................................................................................125
10.5 Parts Replacement and Repairs ..........................................................................................125
10.6 Troubleshooting .......................................................................................................................125
10.7 Fuse Rating .................................................................................................................................126
USER MANUAL INDEX 128

8
NATIONAL
INSTRUMENTS
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits for electromagnetic
compatibility (EMC) stated in the product specifications. These requirements and limits provide
reasonable protection against harmful interference when the product is operated in the intended
operational electromagnetic environment.
This product is intended for use in industrial locations. However, harmful interference may occur
in some installations, when the product is connected to a peripheral device or test object, or if
the product is used in residential or commercial areas. To minimize interference with radio and
television reception and prevent unacceptable performance degradation, install and use this
product in strict accordance with the instructions in the product documentation.
Furthermore, any changes or modifications to the product not expressly approved by National
Instruments could void your authority to operate it under your local regulatory rules.
Safety
This product is designed to meet the requirements of the following standards of safety for
test and measurement equipment:
* IEC 61010-1, EN 61010-1
* UL 61010-1, CSA 61010-1
Note: For UL and other safety certifications, refer to the product label or the Online
Product Certification section.
Electromagnetic Compatibility
This product meets the requirements of the following EMC standards for electrical equipment
for measurement, control, and laboratory use:
* EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
* EN 55011 (CISPR 11): Group 1, Class A emissions
* EN 55022 (CISPR 22): Class A emissions
* EN 55024 (CISPR 24): Immunity
* AS/NZS CISPR 11: Group 1, Class A emissions
* AS/NZS CISPR 22: Class A emissions
* FCC 47 CFR Part 15B: Class A emissions
* ICES-001: Class A emissions
Note: In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial,
light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand
(per CISPR 11) Class A equipment is intended for use only in heavy-industrial locations.
Note: Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that
does not intentionally generate radio frequency energy for the treatment of material or inspection/
analysis purposes.
Note: For EMC declarations and certifications, and additional information, refer to the Online
Product Certification section.

9
NATIONAL
INSTRUMENTS
CE Compliance
This product meets the essential requirements of applicable European Directives as follows:
* 2014/35/EC; Low-Voltage Directive (safety)
* 2014/30/EU; Electromagnetic Compatibility Directive (EMC)
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance
information. To obtain product certifications and the DoC for this product, visit ni.com/
certification, search by model number or product line, and click the appropriate link in the
Certification column.
Environmental Management
NI is committed to designing and manufacturing products in an environmentally responsible
manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial
to the environment and to NI customers.
For additional environmental information, refer to the NI and the Environment Web page at
ni.com/environment.This page contains the environmental regulations and directives with which
NI complies, as well as other environmental information not included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers: At the end of the product life cycle, all products must be sent to a WEEE recycling
center. For more information aboutWEEE recycling centers, National InstrumentsWEEE initiatives,
and compliance withWEEE Directive 2002/96/EC onWaste and Electronic Equipment, visit ni.com/
environment/weee.