Document Outline

• Table of Contents
• List of Figures
• List of Tables
• Foreword
  • Purpose and Scope
  • Contents of this Manual
  • General Precautions
  • Safety Summary
• 1 Introduction
  • 1.1 Model 4Q06250PS-430 Integrated Power Supply System Features
    • 1.1.1 Digitally-Controlled
    • 1.1.2 Superior Resolution and Stability
    • 1.1.3 Intuitive Human-Interface Design
    • 1.1.4 Flexibility
    • 1.1.5 Standard Remote Interfaces
    • 1.1.6 Programmable Safety Features
    • 1.1.7 Condition-Based Magnet Auto-Rampdown
    • 1.1.8 Model 4Q06250PS-430 General Description
    • 1.1.9 Power Supply System Rack Front Panel Layout
      • Figure 1-1. Typical Model 4Q06250PS-430 System Rack Layout
  • 1.2 Model 430 Front Panel Layout
    • Table 1-1. Model 430 Front Panel Description
  • 1.3 Model 430 Rear Panel Layout
    • Table 1-2. Model 430 Zero Flux Version Rear Panel Description
  • 1.4 Power Supply Unit Front Panel Layout
    • Figure 1-2. Model 4Q06125PS Front Panel
    • Table 1-3. Power Supply Front Panel Controls and Indicators
  • 1.5 System Specifications @ 25˚C
  • 1.6 Operating Characteristics
    • Figure 1-3. The Four Regions, or Quadrants, of System Operation.
    • 1.6.1 Four-Quadrant Operation
      • Figure 1-4. Four-Quadrant System with Resistive Shunt
      • Figure 1-5. Four-Quadrant System with Precision Current Transducer Option
• 2 Installation
  • 2.1 Inspecting and Unpacking
  • 2.2 Power Supply System Mounting
  • 2.3 Power Requirements
    • 2.3.1 Changing the Model 430 Programmer Operating Voltage
  • 2.4 Collecting Necessary Information
  • 2.5 System Interconnects
    • 2.5.1 High-Current, High-Stability 4-Quadrant Supply
      • Figure 2-1. Model 4Q06250PS-430 High-Stability System Interconnects
  • 2.6 Special Configurations
  • 2.7 Superconducting Magnets with No Persistent Switch
  • 2.8 Short-Circuit or Resistive Load
  • 2.9 Power-Up and Test Procedure
• 3 Operation
  • 3.1 System Power On/Off Sequence
    • 3.1.1 Model 430 Programmer Power On/Off
    • 3.1.2 Energizing Power Supply and Components
      • 3.1.2.1 Zero Flux Current Transducer Power Supply
  • 3.2 Model 430 Programmer Default Display
    • Figure 3-1. Default Display.
    • 3.2.1 Field / Current Display
    • 3.2.2 Voltage Display
    • 3.2.3 Status Indicator
      • Table 3-1. Description of Status Indicators
    • 3.2.4 Main Display
  • 3.3 Entering Numeric Values
    • Figure 3-2. Numeric Keypad and Associated Keys
  • 3.4 Using Fine Adjust Knob to Adjust Numeric Values
  • 3.5 Entering Picklist Values
    • Figure 3-3. Menu Navigation Keys
  • 3.6 Single-key Commands / Menu
    • Figure 3-4. Single Input Keys
    • 3.6.1 Persistent Switch Control Key
    • 3.6.2 Target Field Setpoint Key
    • 3.6.3 Ramp / Pause Key
    • 3.6.4 Ramp To Zero Key
  • 3.7 SHIFT-key Commands / Menus
    • Figure 3-5. SHIFT-Key Functions
    • 3.7.1 Ramp Rate SHIFT-key
      • 3.7.1.1 Ramp Rate SHIFT-key Example
    • 3.7.2 Voltage Limit SHIFT-key
    • 3.7.3 Reset Quench SHIFT-key
    • 3.7.4 Increment Field SHIFT-key
    • 3.7.5 Field <> Current SHIFT-key
    • 3.7.6 Decrement Field SHIFT-key
    • 3.7.7 Field Units SHIFT-key
    • 3.7.8 Persistent Switch Heater Current SHIFT-key
    • 3.7.9 Stability SHIFT-key
    • 3.7.10 Vs <> Vm SHIFT-key
    • 3.7.11 Volt Meter SHIFT-key
    • 3.7.12 Fine Adjust SHIFT-key
    • 3.7.13 Persist. Switch Control SHIFT-key
  • 3.8 LED Indicators
    • 3.8.1 Power-on Indicator
    • 3.8.2 Magnet Status Indicators
      • Figure 3-6. Magnet Status LED Indicators.
      • 3.8.2.1 Field At Target Indicator
      • 3.8.2.2 Magnet In Persistent Mode Indicator
      • 3.8.2.3 Current Leads Energized Indicator
      • 3.8.2.4 Magnet Quench Indicator
    • 3.8.3 SHIFT Indicator
  • 3.9 Setup Menu
    • 3.9.1 Entering / Exiting Setup Menu
    • 3.9.2 Menu Navigation
  • 3.10 Setup Submenu Descriptions
    • Figure 3-7. Setup Menu Structure
    • 3.10.1 Supply Submenu
      • 3.10.1.1 Select Supply Picklist
        • Table 3-2. Select Supply picklist values and associated parameters.
        • Figure 3-8. Example Power Supply Outputs
        • Table 3-3. V-V Mode Input Range Picklist Values
    • 3.10.2 Load Submenu
      • 3.10.2.1 Stability Setting
        • Figure 3-9. Stability Setting vs. Magnet (with PSwitch) Inductance
        • Table 3-4. Maximum Recommended Stability Setting Changes
      • 3.10.2.2 Coil Constant
      • 3.10.2.3 Magnet Current Rating
        • Figure 3-10. Typical Power Supply Self-Limits
        • Figure 3-11. Magnet Current Rating Set Within Supply Range
      • 3.10.2.4 Current Limit
        • Figure 3-12. Example Current Limit Setup
      • 3.10.2.5 Calculate Magnet Inductance
      • 3.10.2.6 PSwitch Installed
      • 3.10.2.7 PSwitch Current Detect (mA)
      • 3.10.2.8 PSwitch Current
      • 3.10.2.9 PSwitch Heated Time
      • 3.10.2.10 PSwitch Cooled Time
      • 3.10.2.11 PSwitch Power Supply Ramp Rate
      • 3.10.2.12 PSwitch Cooling Gain
      • 3.10.2.13 Enable Quench Detect
      • 3.10.2.14 Energy Absorber Present
      • 3.10.2.15 Enable External Rampdown
    • 3.10.3 Misc Submenu
      • 3.10.3.1 Display Brightness
      • 3.10.3.2 Ramp Segments
      • 3.10.3.3 Ramp Rate Time Units
      • 3.10.3.4 Field Units
      • 3.10.3.5 Quench Rate
      • 3.10.3.6 Settings Protection
      • 3.10.3.7 Settings Password
    • 3.10.4 Net Settings Submenu
      • 3.10.4.1 Addr Assignment (Present)
      • 3.10.4.2 System Name (Present)
      • 3.10.4.3 IP Address (Present)
      • 3.10.4.4 Subnet Mask (Present)
      • 3.10.4.5 Gateway Address (Present)
    • 3.10.5 Net Setup Submenu
      • 3.10.5.1 IP Address Assignment
      • 3.10.5.2 System IP Address
      • 3.10.5.3 Subnet Mask
      • 3.10.5.4 Gateway IP Address
  • 3.11 Example Setup
    • Figure 3-13. Example Magnet Specification Sheet.
    • Table 3-5. Example Setup Configuration
  • 3.12 Ramping Functions
    • 3.12.1 Ramping States and Controls
      • Table 3-6. Ramp modes and descriptions.
    • 3.12.2 Manual Ramping
    • 3.12.3 Automatic Ramping
    • 3.12.4 Ramping to Zero
    • 3.12.5 Fine Adjust of Field / Current in Holding Mode
  • 3.13 Persistent Switch Control
    • 3.13.1 Procedure for Initial Heating of the Switch
    • 3.13.2 Procedure for Entering Persistent Mode
    • 3.13.3 Procedure for Exiting Persistent Mode
    • 3.13.4 Toggling the State of the Persistent Switch Heater
      • 3.13.4.1 Entering Persistent Mode without altering the power supply current output
      • 3.13.4.2 Exiting Persistent Mode without altering the power supply current output
  • 3.14 Ramping Functions Example
    • Figure 3-14. Ramping to Two Different Target Field/Current Settings.
  • 3.15 Quench Detection
    • 3.15.1 External Quench Detection
    • 3.15.2 Disabling Internal Quench Detection
  • 3.16 External Rampdown
    • 3.16.1 External Rampdown while in Persistent Mode
    • 3.16.2 External Rampdown while not in Persistent Mode
  • 3.17 Summary of Operational Limits and Default Settings
    • Table 3-7. Summary of Model 430 Programmer Limits and Defaults
• 4 Remote Interface Reference
  • 4.1 SCPI Command Summary
  • 4.2 Programming Overview
    • 4.2.1 SCPI Language Introduction
    • 4.2.2 SCPI Status System
      • Figure 4-1. The Model 430 Programmer Status System.
      • 4.2.2.1 Status Byte Register
        • Table 4-1. Bit Definitions for the Status Byte Register
      • 4.2.2.2 Reading the Status Byte using *STB?
      • 4.2.2.3 Using the Message Available Bit(s)
    • 4.2.3 Standard Event Register
      • Table 4-2. Bit Definitions for the Standard Event Register
    • 4.2.4 Command Handshaking
      • 4.2.4.1 Using the *OPC Command
      • 4.2.4.2 Using the *OPC? Query
  • 4.3 RS-232 Configuration
    • 4.3.1 Serial Connector
    • 4.3.2 Termination Characters
  • 4.4 Ethernet Configuration
    • 4.4.1 Ethernet Connector
    • 4.4.2 Termination Characters
  • 4.5 Command Reference
    • 4.5.1 System-Related Commands
      • Figure 4-2. Asterisk Indicating Model 430 in Remote Mode
    • 4.5.2 Status System Commands
    • 4.5.3 SETUP Configuration Commands and Queries
      • Table 4-3. Return Values and Meanings for SUPPly:TYPE? Query
      • Table 4-4. Return Values and Meanings for SUPPly:MODE? Query
    • 4.5.4 Protection Commands and Queries
    • 4.5.5 Ramp Configuration Commands and Queries
    • 4.5.6 Ramping State Commands and Queries
      • Table 4-5. Return Values and Meanings for STATE? Query
    • 4.5.7 Switch Heater Command and Query
    • 4.5.8 Quench State Commands and Queries
    • 4.5.9 Rampdown State Queries
    • 4.5.10 Trigger Functions
      • 4.5.10.1 Description of the Trigger Functions
        • Table 4-6. Model 430 Programmer Trigger Function Bit Definitions
      • 4.5.10.2 Trigger Commands and Queries
  • 4.6 Error Messages
    • 4.6.1 Command Errors
    • 4.6.2 Query Errors
    • 4.6.3 Execution Errors
    • 4.6.4 Device Errors
• 5 Service
  • 5.1 System Component Maintenance
    • 5.1.1 Model 430 Programmer Routine Maintenance
    • 5.1.2 Model 4Q06250PS Power Supply Routine Maintenance
  • 5.2 Troubleshooting Hints
    • 5.2.1 Electrostatic Discharge Precautions
    • 5.2.2 The Model 430 does not appear to be energized
      • Table 5-1. V-V Mode Input Range Picklist Values
    • 5.2.3 FAILURE TO LOAD message displayed after power-up
    • 5.2.4 Power supply unstable - magnet voltage oscillates
    • 5.2.5 The power supply system will not charge the magnet.
    • 5.2.6 Cannot charge the magnet at the selected ramp rate.
    • 5.2.7 Cannot discharge the magnet at the selected ramp rate
    • 5.2.8 Cannot charge the magnet to desired field.
    • 5.2.9 Current in only one direction from 4-quadrant supply
    • 5.2.10 Cannot place the magnet in persistent mode.
    • 5.2.11 Cannot bring the magnet out of persistent mode.
    • 5.2.12 The magnet quenches for no apparent reason
    • 5.2.13 Cannot lower the magnet field
    • 5.2.14 There is excessive LHe boil-off during operation.
    • 5.2.15 Cannot display the magnetic field strength, only current
    • 5.2.16 Cannot use remote communications commands.
    • 5.2.17 Magnet current drifts unacceptably while PSwitch cooling
    • 5.2.18 Model 430 appears to lock up when connecting to network
  • 5.3 Additional Technical Support
  • 5.4 Return Authorization
• Appendix
  • A.1 Magnet Station Connectors
    • Table A-1. Magnet Station Connectors Pin Definitions
  • A.2 LHe Level / Temp Connectors
    • Table A-2. LHe Level / Temp Connectors Pin Definitions
  • A.3 Current Transducer Signal Connector
    • Table A-3. Current Transducer Signal Connector Pin Definitions
  • A.4 Current Transducer Power Connector
    • Table A-4. Current Transducer Power Connector Pin Definitions
  • A.5 Program Out Connector
    • Table A-5. Program Out Connector Pin Definitions
  • A.6 Quench I/O Connector
    • Table A-6. Quench I/O Connector Pin Definitions
    • A.6.1 External Quench Detection Input
    • A.6.2 External Rampdown Input
    • A.6.3 External Quench Detection Output
  • A.7 Aux Inputs Connector
    • Table A-7. Aux Inputs Connector Pin Definitions
  • A.8 Ethernet Connector
    • Table A-8. Ethernet RJ-45 Connector Pin Definitions
  • A.9 RS-232 Connector
    • Table A-9. RS-232 Connector Pin Definitions
    • Table A-10. PC (DB9)-to-Model 430 RS-232 Cable Connections
  • A.10 Abbreviations and Acronyms used in this Manual
    • Table A-11. Abbreviations and Acronyms
  • A.11 Model 430 Programmer Specifications
    • Table A-12. Model 430 Programmer Specifications @ 25˚C
  • A.12 Power Supply Details
    • A.12.1 Model 4Q06125PS Single Unit Electrical Specifications
      • Table A-13. Model 4Q06125PS Electrical Specifications
    • A.12.2 Model 4Q06125PS Single Unit Dimensional Specifications
      • Figure A-1. 4Q06125PS Outline Drawing, Front and Rear Views
      • Figure A-2. 4Q06125PS Outline Drawing Top and Side Views
    • A.12.3 Four-Quadrant Characteristics
      • Figure A-3. Four-Quadrant Supply Output Characteristics
  • A.13 Remote Computer Communication with the Model 430
    • A.13.1 Communication via RS-232
    • A.13.2 Communication via Ethernet
  • A.14 Upgrading the Model 430 Firmware via FTP
    • A.14.1 Hardware and Software Requirements
    • A.14.2 Preparation
    • A.14.3 Procedure
  • A.15 Upgrading the Model 430 Firmware via Flash Card Reader
    • A.15.1 Hardware and Software Requirements
    • A.15.2 Preparation
    • A.15.3 Procedure
  • A.16 Model 430 Remote Control Application
    • Figure A-4. http:// - IP Address or System Name Entry
    • Figure A-5. Initial Screen for Browser Access of the Model 430
  • A.17 Model 430IP Power Supply Programmer
    • Figure A-6. Model 430IP Front Panel
    • Figure A-7. Browser Depiction of the Model 430
    • Figure A-8. http:// - System Name Entry
    • Figure A-9. Initial Screen for Browser Access of the Model 430IP
    • Figure A-10. Browser Control of the Model 430IP
  • A.18 Persistent Switch Operation Flowchart
    • Figure A-11. Persistent Switch Operation Flowchart, Page 1
    • Figure A-12. Persistent Switch Operation Flowchart, Page 2
    • Figure A-13. Persistent Switch Operation Flowchart, Page 3
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