Document Outline

• SECTION 1 - INTRODUCTION
• SECTION 2 - INSTALLATION
• SECTION 3 - OPERATION
• SECTION 4 - CALIBRATION
  • APPENDIX A - IEEE 488.2 COMMAND/QUERY DEFINITIONS
  • APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
• FIGURE 1-1. BHK-MG 40W Series Programmable Power Supply
• SECTION 1 - INTRODUCTION
  • 1.1 Scope of Manual
  • 1.2 General Description
  • 1.3 Specifications
  • TABLE 1-1. Model Parameters
  • TABLE 1-2. BHK-MG 40W Specifications
  • FIGURE 1-2. BHK 40W Series Power Supply, Mechanical Outline Drawing
  • FIGURE 1-3. RA 24 Rack Adapter with two 1/2 Rack BHK-MG 40W Units
  • 1.4 Features
  • 1.4.1 Local Control
  • 1.4.2 Remote Control
  • 1.4.2.1 Digital Programming
  • 1.4.2.2 Analog Programming
  • 1.4.2.3 Analog Readback
  • 1.4.3 Digital Calibration
  • 1.4.4 Overvoltage/Overcurrent Protection
  • 1.4.5 User-defined Voltage/Current Limits
  • 1.4.6 Nonvolatile Storage of Programmed Sequences or Active Settings
  • 1.4.7 Current Measurement Scale
  • 1.4.8 Fast Mode/Slow Mode Selection
  • 1.4.9 Built-in Protection
  • 1.4.10 Analog Readback and Flag Signals Available for Customer Use
  • 1.4.11 External Trigger Port
  • TABLE 1-3. Connector A2J5 Signal Descriptions
  • 1.4.12 Current Sink Capability
  • 1.5 Equipment Supplied
  • TABLE 1-4. Equipment Supplied
  • 1.6 Accessories
  • TABLE 1-5. Accessories
  • 1.7 Safety
  • TABLE 1-6. Safety Symbols
• SECTION 2 - INSTALLATION
  • 2.1 Unpacking and Inspection
  • 2.2 Terminations and Controls
  • FIGURE 2-1. BHK-MG Series, Front Panel Controls, Indicators and Connectors
  • TABLE 2-1. Controls, Indicators, and Connectors
  • FIGURE 2-2. BHK-MG Series, Rear Panel Controls and Connections
  • TABLE 2-2. IEEE 488 Port Connector Pin Assignments
  • TABLE 2-3. Status and Remote On/Off Port Connector Pin Assignments
  • TABLE 2-4. RS 232C PORT Input/Output Pin Assignments
  • TABLE 2-5. External Trigger Port Pin Assignments
  • TABLE 2-6. Rear Output Terminal Strip A6TB1, Terminal Assignments
  • TABLE 2-7. Voltage Programming Terminal Strip A6TB2, Terminal Assignments
  • TABLE 2-8. Current Programming Terminal Strip A6TB3, Terminal Assignments
  • 2.3 Source Power Requirements
  • 2.4 Cooling
  • 2.5 Preliminary Operational Check
  • FIGURE 2-3. LCD Power On Defaults
  • 2.6 Installation
  • 2.6.1 Bench Top Use
  • 2.6.2 Rack Mounting
  • 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
  • 2.7.4.1 Cable Recommendations
  • 2.7.5 Load Connection - General
  • FIGURE 2-4. Local Sensing, Slow Mode Selected, Grounding Network Connected, Floating Output (Factory Default Configuration)
  • 2.7.5.1 Local Sensing/Remote Sensing Select
  • 2.7.5.2 Fast Mode/Slow Mode Select
  • 2.7.5.3 Grounding Network Configuration
  • 2.7.5.4 Positive Output, Negative Terminal Grounded
  • 2.7.5.5 Negative Output, Positive Terminal Grounded
  • FIGURE 2-5. Remote Sensing, Fast Mode Selected, Positive Output Grounded
  • 2.8 Operating Configuration
  • TABLE 2-9. Internal Jumper Configuration
  • 2.9 Status Port
  • FIGURE 2-6. Status Port Opto-coupler Active “LOW” Configuration
  • FIGURE 2-7. Status Port Opto-coupler Active “HIGH” Configuration
• SECTION 3 - OPERATION
  • 3.1 General
  • 3.2 Local Mode Operation
  • 3.2.1 Front Panel Keypad and LCD.
  • 3.2.1.1 Command Entry Status
  • 3.2.1.2 Data Entry Status
  • 3.2.1.3 Display (LCD)
  • TABLE 3-1. LCD Messages
  • 3.2.1.4 Keypad Functions
  • TABLE 3-2. Key Functions
  • 3.2.2 Turning the Power Supply On
  • FIGURE 3-1. LCD Power On States
  • 3.2.3 Error Conditions
  • TABLE 3-3. Error Conditions
  • 3.2.4 Setting Local Mode
  • 3.2.5 Adjusting LCD Contrast
  • 3.2.6 Enabling/Disabling Audible Beeps
  • 3.2.7 Enabling/Disabling DC Output Power
  • 3.2.7.1 Disabling DC Output
  • 3.2.7.2 Disabling DC Output Using Remote On/Off Port
  • 3.2.7.3 Remote Shutdown using External Trigger Port
  • 3.2.7.4 Power Up DC Output Control
  • 3.2.8 Reset Operation
  • 3.2.8.1 Setting Power-Up & Reset Current
  • 3.2.9 Setting Output Voltage or Current
  • 3.2.10 Setting Overvoltage or Overcurrent Protection
  • 3.2.11 Changing Maximum Voltage or Current Value
  • 3.2.12 Storing Power Supply Output Settings
  • 3.2.13 Recalling Stored Output Settings
  • 3.2.14 Firmware Version
  • 3.2.15 Local Mode Programming of the Power Supply.
  • 3.2.15.1 Creating or Modifying a Program (Program Edit Mode)
  • TABLE 3-4. Memory Location Worksheet
  • 3.2.15.1.1 Modifying Programmed Time Interval
  • 3.2.15.1.2 Time Interval Accuracy
  • 3.2.15.2 Running a Program
  • 3.2.15.3 Stepping Through a Program
  • 3.2.15.4 Cycling a Program
  • 3.2.15.5 Running a Program Once
  • 3.2.15.6 Stopping a Running Program
  • 3.2.15.7 Sample Program
  • TABLE 3-5. Sample Program (Model BHK-MG 500-80MG)
  • 3.2.16 Calibration
  • 3.3 Remote Mode Programming Using SCPI commands via IEEE 488 (GPIB). Bus
  • 3.3.1 IEEE 488 (GPIB) Bus Protocol
  • TABLE 3-6. IEEE 488 (GPIB) Bus Interface Functions
  • TABLE 3-7. IEEE 488 (GPIB) Bus Command Mode Messages
  • TABLE 3-8. IEEE 488 (GPIB) Bus Data Mode Messages
  • 3.3.2 DCL Control
  • 3.3.3 Changing the GPIB Address
  • 3.3.4 External Trigger
  • 3.3.5 Programming Techniques to Optimize performance
  • 3.3.5.1 Programming Voltage/Current Limit and Current/Voltage Limit
  • 3.3.5.2 Making Sure the Previous Command is Complete
  • FIGURE 3-2. Programming Example to Verify Previous Command has Completed
  • 3.4 BHK-MG VISA Instrument driver
  • 3.5 RS232-C Operation
  • 3.5.1 Setting RS 232 Baud Rate
  • 3.5.2 Serial INterface
  • 3.5.3 RS 232 Implementation
  • FIGURE 3-3. RS 232 Implementation
  • 3.5.3.1 Echo Mode
  • 3.5.3.2 Prompt Method
  • 3.5.3.3 XON XOFF Method
  • 3.5.4 Isolating RS 232 Communication Problems
  • 3.6 Programming Techniques to Optimize performance
  • 3.6.1 Example of Proper Programming
  • 3.6.2 Explanation of Programming Techniques
  • 3.7 SCPI Programming
  • 3.7.1 SCPI Messages
  • 3.7.2 Common Commands/Queries
  • 3.7.3 SCPI Subsystem Command/Query Structure
  • 3.7.3.1 ABORt Subsystem
  • 3.7.3.2 INITiate Subsystem
  • 3.7.3.3 LIST Subsystem
  • 3.7.3.4 MEASure Subsystem
  • 3.7.3.5 OUTPut Subsystem
  • 3.7.3.6 Instrument Subsystem
  • 3.7.3.7 STATus Subsystem
  • 3.7.3.8 System Subsystem
  • 3.7.3.9 TRIGger subsystem
  • 3.7.3.10 [SOURce:]VOLTage and [SOURce:]CURRent Subsystems
  • 3.7.3.11 CALibrate Subsystem
  • FIGURE 3-4. Tree Diagram of SCPI Commands Used with BHK-MG 40W Power Supply
  • FIGURE 3-5. Message Structure
  • 3.7.4 Program Message Structure
  • 3.7.4.1 Keyword
  • TABLE 3-9. Rules Governing Shortform Keywords
  • 3.7.4.2 Keyword Separator
  • 3.7.4.3 Query Indicator
  • 3.7.4.4 Data
  • 3.7.4.5 Data Separator
  • 3.7.4.6 Message Unit Separator
  • 3.7.4.7 Root Specifier
  • 3.7.4.8 Message Terminator
  • 3.7.5 Understanding The Command Structure
  • 3.7.6 Program Message Syntax Summary
  • 3.7.7 SCPI Program Examples
  • FIGURE 3-6. Typical Example Of BHK-MG 40W Power Supply Program Using SCPI Commands
  • 3.8 Remote Programming Using Analog Programming Terminals
  • FIGURE 3-7. Analog Voltage Programming, Simplified Diagram
  • FIGURE 3-8. Analog Current Programming, Simplified Diagram
  • 3.8.1 Analog Programming Warnings and Cautions
  • 3.8.2 Programming with external resistance
  • FIGURE 3-9. Analog Programming of Output Voltage (Voltage Mode) or Voltage Limit (Current Mode) using Resistance
  • TABLE 3-10. Feedback Resistor and Current Sensing Resistor Values
  • FIGURE 3-10. Analog Programming of Output Current (Current Mode) or Current Limit (Voltage Mode) using Resistance
  • 3.8.2.1 Voltage Mode
  • 3.8.2.2 Current Mode
  • 3.8.3 Programming with external voltage using a low impedance Voltage source
  • FIGURE 3-11. Analog Programming of Output Voltage (Voltage Mode) or Voltage Limit (Current Mode) using Isolated (floating) Low Impedance Voltage Source (VS)
  • FIGURE 3-12. Analog Programming of Output Voltage (Voltage Mode) or Voltage Limit (Current Mode) using Grounded Low Impedance Voltage Source (VS)
  • FIGURE 3-13. Analog Programming of Output Current (Current Mode) or Current Limit (Voltage Mode) using Isolated (Floating) Low Impedance Voltage Source (VS)
  • FIGURE 3-14. Analog Programming of Output Current (Current Mode) or Current Limit (Voltage Mode) using Grounded Low Impedance Voltage Source (VS)
  • 3.8.3.1 Voltage Mode
  • 3.8.3.2 Current Mode
  • 3.8.4 Programming with external voltage using a high impedance, low level (1V) Voltage source
  • FIGURE 3-15. Analog Programming of Output Voltage (Voltage Mode) or Voltage Limit (Current Mode) using High Impedance, Low Level (1V) Voltage Source (VS)
  • FIGURE 3-16. Analog Programming of Output Current (Current Mode) or Current Limit (Voltage Mode) using High Impedance, Low Level (1V) Voltage Source (VS)
  • 3.8.4.1 Voltage Mode
  • 3.8.4.2 Current Mode
  • 3.8.5 Programming with external current source (1 mA)
  • FIGURE 3-17. Analog Programming of Output Voltage (Voltage Mode) or Voltage Limit (Current Mode) using Current Source (1mA) (CS)
  • FIGURE 3-18. Analog Programming of Output Current (Current Mode) or Current Limit (Voltage Mode) using Current Source (1mA) (CS)
  • 3.8.5.1 Voltage Mode
  • 3.8.5.2 Current Mode
  • 3.9 Operating Modes
  • 3.9.1 Slow/Fast mode of operation
  • FIGURE 3-19. Slow Mode/Fast Mode Operation
  • 3.9.2 Series operation
  • 3.9.2.1 Automatic series operation
  • FIGURE 3-20. Series Automatic Configuration
  • 3.9.2.2 Master-slave series operation (Automatic Tracking)
  • 3.9.2.2.1 Voltage Mode Operation
  • FIGURE 3-21. Series Master-Slave (Voltage Mode) Configuration
  • 3.9.2.2.2 Current Mode Operation
  • FIGURE 3-22. Series Master-Slave (Current Mode) Configuration
  • 3.9.3 Parallel operation
  • 3.9.3.1 Automatic parallel operation
  • FIGURE 3-23. Parallel Automatic Configuration
  • 3.9.3.2 Master-slave parallel operation
  • 3.9.3.2.1 Voltage Mode Operation
  • FIGURE 3-24. Parallel Master-Slave (Voltage Mode) Configuration
  • 3.9.3.2.2 Current Mode Operation
  • FIGURE 3-25. Parallel Master-Slave (Current Mode) Configuration
• SECTION 4 - CALIBRATION
  • 4.1 General
  • 4.2 Equipment Required
  • 4.3 Calibration Description
  • 4.4 Calibration Using Front Panel Keys
  • 4.4.1 Voltage Calibration
  • 4.4.2 Current Calibration
  • 4.5 Calibration Using VISA Driver
  • 4.5.1 GPIB Setup
  • FIGURE 4-1. GPIB Setup Window
  • 4.5.2 Calibration Basics
  • FIGURE 4-2. Main Panel (BHK 1000-40MG, Typical)
  • FIGURE 4-3. Calibration Panel
  • TABLE 4-1. Calibration Panel Functions
  • 4.5.3 Calibration Procedure
  • 4.6 Changing the Calibration Password
  • TABLE 4-2. Factory Default Calibration Passwords
  • 4.7 Restoring Previous Calibration Values
  • 4.8 Restoring Factory Calibration Values
  • 4.9 Calibration Storage
  • TABLE 4-3. Calibration Storage
• APPENDIX A - IEEE 488.2 COMMAND/QUERY DEFINITIONS
  • 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
  • A.8 *OPC? — Operation Complete Query
  • A.9 *RCL — Recall Command
  • FIGURE A-1. GPIB Commands
  • A.10 *RST — Reset Command
  • A.11 * SAV — Save Command
  • A.12 *SRE — Service Request Enable Command
  • TABLE A-3. Service Request Enable and Status Byte Register Bits
  • A.13 *SRE? — Service Request Enable Query
  • A.14 *STB? — Status Byte Register Query
  • A.15 *TRG — Trigger Command
  • A.16 *TST? — Self Test Query
• APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
  • TABLE B-1. SCPI Subsystem Command/query Index
  • B.2 Numerical Values
  • B.3 ABORt Command
  • B.4 CAL Commands and Queries
  • B.5 DISPlay:CONTrast Command
  • B.6 DISPlay:CONTrast? Query
  • FIGURE B-1. Programming the Output
  • FIGURE B-2. Using Display Commands
  • B.7 DISPlay:MODE Command
  • B.8 DISPlay:MODE? Query
  • B.9 DISPlay:TEXT Command
  • B.10 DISPlay:TEXT? Query
  • B.11 INITiate[:IMMediate] Command
  • B.12 INITiate:CONTinuous Command
  • B.13 INITiate:CONTinuous? Query
  • B.14 INSTrument:STATe Command
  • B.15 INSTrument:STATe? Query
  • B.16 [SOURce:]LIST:CLEar Command
  • B.17 [SOURce:]LIST:COUNt Command
  • B.18 [SOURce:]LIST:COUNt? Query
  • B.19 [SOURce:]LIST:COUNt:SKIP Command
  • B.20 [SOURce:]LIST:COUNt:SKIP? Query
  • B.21 [SOURce:]LIST:CURRent Command
  • B.22 [SOURce:]LIST:CURRent? Query
  • B.23 [SOURce:]LIST:CURRent:POINts? Query
  • B.24 [SOURce:]LIST:DIRection Command
  • B.25 [SOURce:]LIST:DIRection? Query
  • B.26 [SOURce:]LIST:DWELl Command
  • B.27 [SOURce:]LIST:DWELl? Query
  • B.28 [SOURce:]LIST:DWELl:POINts? Query
  • B.29 [SOURce:]LIST:QUERy Command
  • B.30 [SOURce:]LIST:QUERy? Query
  • B.31 [SOURce:]LIST:VOLTage Command
  • B.32 [SOURce:]LIST:VOLTage? Query
  • B.33 [SOURce:]LIST:VOLTage:POINts? Query
  • FIGURE B-3. Using LIST Commands and Queries
  • B.34 MEASure[:SCALar]:CURRent[:DC]? Query
  • B.35 MEASure:VOLTage[:SCALar][:DC]? Query
  • B.36 OUTPut[:STATe] Command
  • B.37 OUTPut[:STATe]? Query
  • B.38 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude] Command
  • B.39 [SOURce:]CURRent[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.40 [SOURce:]CURRent:LIMit[:HIGH] Command
  • B.41 [SOURce:]CURRent:LIMit[:HIGH]? Query
  • B.42 [SOURce:]CURRent:MODE Command
  • B.43 [SOURce:]CURRent:MODE? Query
  • B.44 [SOURce:]CURRent:PROTection[:LEVel] Command
  • B.45 [SOURce:]CURRent:PROTection[:LEVel]? Query
  • B.46 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude] Command
  • B.47 [SOURce:]CURRent:[:LEVel]TRIGgered[:AMPlitude] ? Query
  • FIGURE B-4. Programming Current
  • B.48 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] Command
  • B.49 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? Query
  • B.50 [SOURce:]VOLTage:LIMit[:HIGH] Command
  • B.51 [SOURce:]VOLTage:LIMit[:HIGH]? Query
  • B.52 [SOURce:]VOLTage:MODE Command
  • B.53 [SOURce:]VOLTage:MODE? Query
  • B.54 [SOURce:]VOLTage:PROTection[:LEVel] Command
  • B.55 [SOURce:]VOLTage:PROTection[:LEVel]? Query
  • B.56 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude] Command
  • B.57 [SOURce:]VOLTage:[:LEVel]TRIGgered[:AMPlitude]? Query
  • B.58 [SOURce:]FUNCtion:MODE? Query
  • FIGURE B-5. Programming Voltage
  • B.59 STATus:OPERation:CONDition? Query
  • TABLE B-2. Operation Condition Register, Operation Enable Register, and Operation Event Register Bits
  • B.60 STATus:OPERation:ENABle Command
  • FIGURE B-6. Using Status Commands and Queries
  • B.61 STATus:OPERation:ENABle? Query
  • B.62 STATus:OPERation[:EVENt] Query
  • B.63 STATus:PRESet Command
  • B.64 STATus:QUEStionable[:EVENt]? Query
  • TABLE B-3. Questionable Event Register, Questionable Condition Register, and Questionable Condition Enable Register Bits
  • B.65 STATus:QUEStionable:CONDition? Query
  • B.66 STATus:QUEStionable:ENABle Command
  • B.67 STATus:QUEStionable:ENABle? Query
  • B.68 SYSTem:BEEP Command
  • B.69 SYSTem:COMMunication:GPIB:ADDRess Command
  • B.70 SYSTem:COMMunication:GPIB:ADDRess? Query
  • B.71 SYSTem:COMMunication:SERial:BAUD Command
  • B.72 SYSTem:COMMunication:SERial:BAUD? Query
  • B.73 SYSTem:COMMunication:SERial:ECHO Command
  • B.74 SYSTem:COMMunication:SERial:ECHO? Query
  • B.75 SYSTem:COMMunication:SERial:PACE Command
  • B.76 SYSTem:COMMunication:SERial:PACE? Query
  • B.77 SYSTem:COMMunication:SERial:PROMpt Command
  • B.78 SYSTem:COMMunication:SERial:PROMpt? QUERY
  • B.79 SYSTem:ERRor? Query
  • B.80 SYSTem:ERRor:CODE? Query
  • B.81 SYSTem:ERRor:CODE:ALL? Query
  • B.82 SYSTem:KLOCk Command
  • B.83 SYSTem:KLOCk? Query
  • FIGURE B-7. Using System Commands and Queries
  • B.84 SYSTem:PASSword:CENable Command
  • B.85 SYSTem:PASSword:CDISable Command
  • B.86 SYSTem:PASSword:NEW Command
  • B.87 SYSTem:PASSword:STATe? Query
  • B.88 SYSTem:SECurity:IMMediate Command
  • B.89 SYSTem:VERSion? Query
  • B.90 TRIGger:SOURce Command
  • TABLE B-4. Error Messages