Document Outline

• SECTION 1 - INTRODUCTION
• SECTION 2 - INSTALLATION
• SECTION 3 - OPERATION
• SECTION 4 - THEORY OF OPERATION
  • APPENDIX A - SCPI COMMON COMMAND/QUERY DEFINITIONS
  • APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
  • APPENDIX C - CIIL COMMAND DEFINITIONS
• SECTION 1 - INTRODUCTION
  • 1.1 Scope of Manual
  • 1.2 General Description
  • 1.3 Specifications
  • TABLE 1-1. Model Parameters
  • TABLE 1-2. General Specifications
  • FIGURE 1-2. MBT Series Power Supply, Mechanical Outline Drawing
  • 1.4 Features
  • 1.4.1 Local Control
  • 1.4.2 Remote Control
  • 1.5 Options
  • 1.5.1 Option G - Single Board Computer
  • 1.5.2 Option R - Output/Polarity Reversal Relays
  • FIGURE 1-3. Remotely Controlled Power Supply Configurations Using Kepco Products
  • 1.6 Equipment Supplied
  • TABLE 1-3. Equipment Supplied
  • 1.7 Accessories
  • TABLE 1-4. Accessories
• SECTION 2 - INSTALLATION
  • 2.1 Unpacking and Inspection
  • 2.2 Terminations and Controls
  • 2.3 Source Power Requirements
  • 2.4 Cooling
  • FIGURE 2-1. MBT Series Front Panel Controls and Indicators
  • FIGURE 2-2. MBT Series Internal Controls Accessible Through Top Cover
  • TABLE 2-1. Internal Controls Accessible Through Top Cover
  • TABLE 2-2. Input/Output Pin Assignments for Remote Control
  • FIGURE 2-3. MBT Series Rear Panel Connections
  • FIGURE 2-4. Connector Pin Assignments
  • 2.5 Preliminary Operating Procedures
  • 2.5.1 Node Address (Channel Number) Selection
  • TABLE 2-3. Node Address Selection
  • 2.5.2 Preliminary Operational Check
  • 2.6 Installation
  • 2.6.1 Bench Top Use
  • 2.6.2 Rack Mounting
  • 2.6.3 “G” Option Selector (MG and MGR Models)
  • 2.7 Wiring Instructions
  • 2.7.1 Safety Grounding
  • 2.7.2 Source Power Connections
  • 2.7.3 D-C Output Grounding
  • 2.7.4 Power Supply/Load Interface
  • 2.7.5 Load Connection - General
  • 2.7.6 Load Connection Using Local Sensing
  • 2.7.7 Load Connection Using Remote Sensing
  • 2.8 Operating Configuration
  • TABLE 2-4. Internal Jumper Configuration
  • 2.9 RS 232 Connections
  • FIGURE 2-5. Grounded Load Connections, Local Sensing
  • FIGURE 2-6. Isolated Load Connections, Local Sensing
  • FIGURE 2-7. Grounded Load Connections, Remote Sensing
  • FIGURE 2-8. Isolated Load Connections, Remote Sensing
• SECTION 3 - OPERATION
  • 3.1 General
  • 3.1.1 Actual Mode
  • 3.1.2 Commanded Mode
  • 3.1.3 Local Mode
  • 3.1.4 Remote Mode
  • 3.2 Local Mode Operation
  • 3.2.1 Local Mode Controls and Indicators
  • 3.2.1.1 Front Panel Controls and Indicators.
  • TABLE 3-1. Front Panel Controls And Indicators
  • TABLE 3-2. Key Functions
  • 3.2.1.2 Keypad Operation
  • 3.2.1.3 Turning the Power Supply On
  • 3.2.1.4 Setting Local Mode
  • 3.2.1.5 Enabling/Disabling DC Output Power
  • 3.2.1.5.1 M and MG Models
  • 3.2.1.5.2 MR and MGR Models
  • 3.2.1.6 Setting Output Voltage or Voltage Limit
  • 3.2.1.6.1 Using Vadj and Numeric Keys — M, MG Models
  • TABLE 3-3. Using Vadj and Keypad Entries To Set Output Voltage/Voltage Limit — Models M, MG
  • 3.2.1.6.2 Using Vadj and Numeric Keys — MR, MGR Models
  • TABLE 3-4. Using Vadj and Keypad Entries To Set Output Voltage/Voltage Limit — Models MR, MGR
  • 3.2.1.6.3 Procedure Using Vadj and Numeric Keypad
  • 3.2.1.6.4 Slew (s and t) Keys — M, MG Models
  • TABLE 3-5. Using Slew Keys (s and t) to Set Output Voltage/Voltage Limit — Models M, MG
  • 3.2.1.6.5 Slew (s and t) Keys — MR, MGR Models
  • TABLE 3-6. Using Slew Keys (s and t) to Set Output Voltage/Voltage Limit — Models MR, MGR
  • 3.2.1.6.6 Voltage Control — M, MG Models
  • TABLE 3-7. Using Voltage Control to Set Output Voltage/Voltage Limit — Models M, MG
  • 3.2.1.6.7 Voltage Control — MR, MGR Models
  • TABLE 3-8. Using Voltage Control To Set Output Voltage/Voltage Limit — Models MR, MGR
  • 3.2.1.7 Setting Output Current or Current Limit
  • 3.2.1.7.1 Using Iadj and Numeric Keys — M, MG Models
  • TABLE 3-9. Using Iadj and Keypad Entries to Set Output Current/Current Limit — Models M, MG
  • 3.2.1.7.2 Using Iadj and Numeric Keys — MR, MGR Models
  • TABLE 3-10. Using Iadj and Keypad Entries To Set Output Current/Current Limit — Models MR, MGR
  • 3.2.1.7.3 Procedure Using Iadj and Numeric Keypad
  • 3.2.1.7.4 Slew (s and t) Keys — M, MG Models
  • TABLE 3-11. Using Slew Keys (s and t) to Set Output Current/Current Limit — Models M, MG
  • 3.2.1.7.5 Slew (s and t) Keys — MR, MGR Models
  • TABLE 3-12. Using Slew Keys (s and t) to Set Output Current/Current Limit — Models MR, MGR
  • 3.2.1.7.6 Current Control — M, MG Models
  • TABLE 3-13. Using Current Control To Set Output Current/Current Limit — Models M, MG
  • 3.2.1.7.7 Current Control — MR, MGR Models
  • TABLE 3-14. Using Current Control to Set Output Current/Current Limit — Models MR, MGR
  • 3.2.1.8 Setting Voltage Mode or Current Mode
  • 3.2.1.8.1 M, MG Models
  • 3.2.1.8.2 MR, MGR Models
  • 3.2.1.9 Reversing DC Output Polarity — MR, MGR Models
  • 3.2.1.10 Changing the GPIB Address
  • 3.2.1.11 Local Mode Programming of the Power Supply
  • TABLE 3-15. Programming Mode Screens
  • 3.2.1.11.1 Entering Program Mode
  • 3.2.1.11.2 Creating a New Program
  • TABLE 3-16. Default Parameters for New Added Steps
  • TABLE 3-17. Sample Program (Assigned Program #2)
  • 3.2.1.11.3 Running a Program
  • 3.2.1.11.4 Modifying a Program
  • 3.2.1.11.5 Cycling a Program
  • 3.2.1.11.6 Stopping a Program
  • 3.2.1.11.7 Exiting Program Mode
  • 3.2.1.11.8 Sample Program Operation - Models M, MG
  • FIGURE 3-1. Sample Program Operation for M, MG Models
  • FIGURE 3-2. Sample Program Operation for MR, MGR Models
  • 3.2.2 Using the Menu System
  • TABLE 3-18. Menu Functions
  • 3.2.2.1 Speaker On/Off
  • 3.2.2.2 Controls Lock-out
  • 3.2.2.3 Remote Channel
  • 3.2.2.3.1 General Notes for Remote Configurations Using IEEE 1118 Bus
  • 3.2.2.3.2 Remote Operation Using Keypad to Control Another MBT Power Supply
  • 3.2.2.4 Calibration
  • 3.2.2.5 OVP, OCP Set-up
  • 3.2.2.6 Slew Key Increments Set-up
  • 3.2.2.7 Remote Display Blanking
  • 3.2.2.8 GPIB Addressing Mode
  • 3.2.2.9 Compatiblity Mode
  • TABLE 3-19. MBT-G Compatibility Modes
  • 3.2.2.10 Command Language
  • 3.3 Remote Mode Programming
  • 3.3.1 General
  • 3.3.2 IEEE 488 (GPIB) Bus Protocol
  • TABLE 3-20. IEEE 488 (GPIB) Bus Interface Functions
  • 3.3.2.1 String Parsing
  • TABLE 3-21. IEEE 488 (GPIB) Bus Command Mode Messages
  • TABLE 3-22. IEEE 488 (GPIB) Bus Data Mode Messages
  • 3.3.3 RS232-C Bus Protocol
  • 3.3.3.1 RS 232 Implementation
  • FIGURE 3-3. RS 232 Implementation
  • 3.3.3.2 Echo Mode
  • 3.3.3.3 Prompt Method
  • 3.3.3.4 XON XOFF Method
  • 3.3.3.5 Special Commands
  • TABLE 3-23. XON XOFF Control
  • 3.3.4 Programming Techniques to Optimize Power Supply performance
  • 3.3.5 SCPI Programming
  • 3.3.5.1 SCPI Messages
  • 3.3.5.2 Common Commands/Queries
  • 3.3.5.3 SCPI Subsystem Command/Query Structure
  • TABLE 3-24. SCPI Command Index
  • FIGURE 3-4. Tree Diagram of SCPI Commands Used with MBT-G Power Supplies
  • 3.3.5.4 Program Message Structure
  • FIGURE 3-5. Message Structure
  • 3.3.5.4.1 Keyword
  • TABLE 3-25. Rules Governing Shortform Keywords
  • 3.3.5.4.2 Keyword Separator
  • 3.3.5.4.3 Query Indicator
  • 3.3.5.4.4 Data
  • 3.3.5.4.5 Data Separator
  • 3.3.5.4.6 Message Unit Separator
  • 3.3.5.4.7 Root Specifier
  • 3.3.5.4.8 Message Terminator
  • 3.3.5.5 Understanding The Command Structure
  • 3.3.5.6 Addressing Multiple Power Supplies
  • 3.3.5.7 Understanding The Command Structure
  • 3.3.5.8 Program Message Syntax Summary
  • 3.3.5.9 Status Reporting
  • 3.3.5.9.1 STATUS REPORTING STRUCTURE
  • 3.3.5.9.2 Operational Status Register
  • 3.3.5.9.3 QUEStionable Status Register
  • FIGURE 3-6. Status Reporting Structure
  • 3.3.5.9.4 Multiple Logical Instruments
  • FIGURE 3-7. Expansion of QUEStionable Register for Multiple Logical Instruments
  • 3.3.5.10 SCPI Program Example
  • FIGURE 3-8. Typical Example Of MBT-G Power Supply Program Using SCPI Commands
  • 3.3.6 CIIL Programming
• SECTION 4 - THEORY OF OPERATION
  • 4.1 Introduction
  • FIGURE 4-1. Crossover Characteristics of the MBT Power Supply Showing the Critical or Crossover Value of Load Resistance Rlx
  • 4.1.1 Voltage Source.
  • 4.1.2 Current Source
  • 4.1.3 Voltage Mode
  • FIGURE 4-2. Voltage Comparison Equivalent Circuit
  • 4.1.4 Current Mode
  • FIGURE 4-3. Current Comparison Equivalent Circuit
  • 4.1.5 Voltage/Current Reference
  • 4.1.6 A/D Conversion
  • 4.1.7 Voltage/Current Comparison Errors
  • 4.1.8 Protective Circuits
  • 4.1.8.1 Overvoltage/Overcurrent Protection
  • 4.1.8.2 Overtemperature Protection
  • 4.1.8.3 Power Loss Protection
  • 4.1.8.4 Path Fault Protection
  • 4.1.8.5 Crowbar and Turn-off Circuit
  • 4.1.9 Response Time
  • 4.1.10 Retention of Programmed Values
  • 4.1.11 Output Enable/Disable and Polarity Reversal Relays — MR, MGR Models
  • 4.1.12 Output Enable/Disable
  • 4.1.12.1 M, MG Models
  • 4.1.12.2 MR, MGR Models
  • 4.1.13 Local Control
  • 4.1.13.1 Set Output Voltage/Current Limit (Voltage Mode)
  • 4.1.13.2 Set Output Current/Voltage Limit (Current Mode)
  • 4.1.13.3 Set Voltage/Current Mode
  • 4.1.13.4 Output Enable/Disable
  • 4.1.13.5 Programmable Parameters
  • 4.1.13.6 Status
  • 4.1.13.7 Menu-selectable Parameters
  • 4.1.14 Remote Control
  • 4.2 MBT Series Block Diagram Circuit Description
  • FIGURE 4-4. MBT Series Power Supply, Overall Block Diagram
  • 4.3 Detailed Circuit Descriptions
  • FIGURE 4-5. MBT Series Power Supply, Location of Major Components
  • 4.3.1 Analog Control Board A1
  • 4.3.2 Relay and Flags Board A2
  • 4.3.3 Digital Control Board A3
  • 4.3.4 Auxiliary Supply Board A4
  • 4.3.5 Mother Board A5
  • 4.3.6 A-C Input Circuit and Main D-C Supply (Chassis A6)
  • 4.3.7 Heat Sink Assembly A7
  • 4.3.8 Front Panel Board A8
  • 4.3.9 Sensing Resistor and Crowbar Circuit A10
  • 4.3.10 Alphanumeric Display (LCD) A11
  • 4.3.11 Keypad A12
  • 4.3.12 "G" Option Components — MG, MGR Models
  • 4.3.12.1 Single Board Computer (SBC) A13 — MG, MGR Models
  • 4.3.12.2 Interface Board A14 — MG, MGR Models
  • 4.3.13 "R" Option Components — MR, MGR Models
• APPENDIX A - SCPI COMMON COMMAND/QUERY DEFINITIONS
  • A.1 Introduction
  • TABLE A-1. IEEE 488.2 Command/query Index
  • A.2 *CLS — Clear Status Command
  • A.3 *ESE — Standard Event Status Enable Command
  • TABLE A-2. Standard Event Status Enable Register and Standard Event Status Register Bits
  • A.4 *ESE? — Standard Event Status Enable Query
  • A.5 *ESR? — Event Status Register Query
  • A.6 *IDN? — Identification Query
  • A.7 *OPC — Operation Complete Command
  • FIGURE A-1. GPIB Commands
  • A.8 *OPC? — Operation Complete Query
  • A.9 *OPT? — Options Query
  • A.10 *RST — Reset Command
  • A.11 *SRE — Service Request Enable Command
  • TABLE A-3. Service Request Enable and Status Byte Register Bits
  • A.12 *SRE? — Service Request Enable Query
  • A.13 *STB? — Status Byte Register Query
  • A.14 *TRG — Trigger Command
  • A.15 *TST? — Self Test Query
  • A.16 *WAI — Wait-to-Continue Command
  • FIGURE A-2. Using the *WAIt-to-continue Command
• APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
  • B.1 Introduction
  • TABLE B-1. SCPI Subsystem Command/query Index
  • B.2 INITiate[:IMMediate] Command
  • B.3 INITiate:CONTinuous Command
  • B.4 INITiate:CONTinuous? Query
  • B.5 INSTrument:CATalog? Query
  • FIGURE B-1. Use of INSTrument:CATalog Query
  • B.6 INSTrument[:NSELect] Command
  • B.7 INSTrument[:SELect] Command
  • B.8 INSTrument[:SELect]? Query
  • B.9 INSTrument:STATe Command
  • FIGURE B-2. Identifying and Selecting Devices on BITBUS
  • B.10 MEASure[:SCALar]:CURRent[:DC]? Query
  • B.11 MEASure[:SCALar][:VOLTage][:DC]? Query
  • B.12 OUTPut[:STATe] Command
  • B.13 OUTPut[:STATe] Query
  • B.14 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Command
  • B.15 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude]? Query
  • FIGURE B-3. Programming the Output
  • B.16 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude] Command
  • B.17 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude]? Query
  • FIGURE B-4. Programming Current
  • B.18 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] Command
  • B.19 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.20 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude] Command
  • B.21 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude]? Query
  • B.22 [SOURce:]FUNCtion:MODE Command
  • B.23 STATus:OPERation:CONDition? Query
  • TABLE B-2. Operation Condition Register, Operation Enable Register, and Operation Event Register Bits
  • B.24 STATus:OPERation:ENABle Command
  • B.25 STATus:OPERation:ENABle? Query
  • B.26 STATus:OPERation[:EVENt]? Query
  • B.27 STATus:PRESet Command
  • FIGURE B-5. Using Status Commands and Queries
  • B.28 STATus:QUEStionable[:EVENt]? Query
  • B.29 STATus:QUEStionable:CONDition? Query
  • TABLE B-3. Questionable Event Register, Questionable Condition Register and Questionable Condition Enable Register Bits
  • B.30 STATus:QUEStionable:ENABle Command
  • B.31 STATus:QUEStionable:ENABle? Query
  • B.32 STATus:QUEStionable:INSTrument? Query
  • TABLE B-4. Questionable Instrument Register 0 Bits
  • B.33 STATus:QUEStionable:INSTrument1? Query
  • TABLE B-5. Questionable Instrument Register 1 Bits
  • B.34 STATus:QUEStionable:INSTrument2? Query
  • TABLE B-6. Questionable Instrument Register 2 Bits
  • B.35 STATus:QUEStionable:INSTrument:ENABle Command
  • B.36 STATus:QUEStionable:INSTrument:ENABle? Query
  • B.37 STATus:QUEStionable:INSTrument1:ENABle Command
  • B.38 STATus:QUEStionable:INSTrument1:ENABle? Query
  • B.39 STATus:QUEStionable:INSTrument2:ENABle Command
  • B.40 STATus:QUEStionable:INSTrument2:ENABle? Query
  • B.41 STATus:QUEStionable:INSTrument:ISUM? Query
  • B.42 STATus:QUEStionable:INSTrument:ISUM:ENABle Command
  • B.43 STATus:QUEStionable:INSTrument:ISUM:ENABle? Query
  • B.44 SYSTem:COMMunication:GPIB:ADDRess Command
  • B.45 SYSTem:COMMunication:SERial:BAUD Command
  • B.46 SYSTem:COMMunication:SERial:ECHO Command
  • B.47 SYSTem:COMMunication:SERial:PACE Command
  • B.48 SYSTem:COMMunication:SERial::PROMpt Command
  • B.49 SYSTem:ERRor[:NEXT]? Query
  • B.50 SYSTem:ERRor:CODE? Query
  • B.51 SYSTem:ERRor:CODE:ALL? Query
  • B.52 SYSTem:LANGuage Command
  • TABLE B-7. Error Messages
  • B.53 SYSTem:SET Command
  • B.54 SYSTem:VERSion Query
• APPENDIX C - CIIL COMMAND DEFINITIONS
  • TABLE C-1. CIIL Subsystem Command/query Index
  • FIGURE C-1. FNC — Function Command
  • FIGURE C-2. INX — Initiate Op Code Command
  • FIGURE C-3. FTH — Fetch Command
  • FIGURE C-4. SET Command
  • FIGURE C-5. OPN, CLS — Open, Close Relay Commands
  • FIGURE C-6. RST — Reset Command
  • FIGURE C-7. CNF, IST — Confidence Test, Internal Self Test Commands
  • TABLE C-2. CIIL Error Messages
  • FIGURE C-8. STA — Status Command
  • TABLE C-3. CIIL Error Handling Utility Commands
  • FIGURE C-9. GAL — Go to Alternate Language Command