User guide
Table Of Contents
- Table of Contents
- List of Figures
- List of Tables
- Foreword
- 1 Introduction
- 1.1 Model 4Q1010PS-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 4Q1010PS-430 General Description
- 1.1.9 Power Supply System Rack Front Panel Layout
- 1.2 Model 430 Front Panel Layout
- 1.3 Model 430 Rear Panel Layout
- 1.4 Power Supply Unit Front Panel Layout
- 1.5 System Specifications @ 25 C
- 1.6 Operating Characteristics
- 1.1 Model 4Q1010PS-430 Integrated Power Supply System Features
- 2 Installation
- 3 Operation
- 3.1 System Power On/Off Sequence
- 3.2 Model 430 Programmer Default Display
- 3.3 Entering Numeric Values
- 3.4 Using Fine Adjust Knob to Adjust Numeric Values
- 3.5 Entering Picklist Values
- 3.6 Single-key Commands / Menu
- 3.7 SHIFT-key Commands / Menus
- Figure 3-5. SHIFT-Key Functions
- 3.7.1 Ramp Rate SHIFT-key
- 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
- 3.9 Setup Menu
- 3.10 Setup Submenu Descriptions
- Figure 3-7. Setup Menu Structure
- 3.10.1 Supply Submenu
- 3.10.2 Load Submenu
- 3.10.2.1 Stability Setting
- 3.10.2.2 Coil Constant
- 3.10.2.3 Magnet Current Rating
- 3.10.2.4 Current Limit
- 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
- 3.10.4 Net Settings Submenu
- 3.10.5 Net Setup Submenu
- 3.11 Example Setup
- 3.12 Ramping Functions
- 3.13 Persistent Switch Control
- 3.14 Ramping Functions Example
- 3.15 Quench Detection
- 3.16 External Rampdown
- 3.17 Summary of Operational Limits and Default Settings
- 4 Remote Interface Reference
- 4.1 SCPI Command Summary
- 4.2 Programming Overview
- 4.3 RS-232 Configuration
- 4.4 Ethernet Configuration
- 4.5 Command Reference
- 4.5.1 System-Related Commands
- 4.5.2 Status System Commands
- 4.5.3 SETUP Configuration Commands and Queries
- 4.5.4 Protection Commands and Queries
- 4.5.5 Ramp Configuration Commands and Queries
- 4.5.6 Ramping State Commands and Queries
- 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
- 4.6 Error Messages
- 5 Service
- 5.1 System Component Maintenance
- 5.2 Troubleshooting Hints
- 5.2.1 Electrostatic Discharge Precautions
- 5.2.2 The Model 430 does not appear to be energized
- 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
- A.2 LHe Level / Temp Connectors
- A.3 Programmer Shunt Terminals
- A.4 Program Out Connector
- A.5 Quench I/O Connector
- A.6 Aux Inputs Connector
- A.7 Ethernet Connector
- A.8 RS-232 Connector
- A.9 Abbreviations and Acronyms used in this Manual
- A.10 Model 430 Programmer Specifications
- A.11 Power Supply Details
- A.12 Remote Computer Communication with the Model 430
- A.13 Upgrading the Model 430 Firmware via FTP
- A.14 Upgrading the Model 430 Firmware via Flash Card Reader
- A.15 Model 430 Remote Control Application
- A.16 Model 430IP Power Supply Programmer
- A.17 Persistent Switch Operation Flowchart
- Index
Rev. 5 135
5 Service
5.1 System Component Maintenance
Caution
These electronic devices are sensitive to electrostatic-discharge
(ESD) damage when opened (cover removed). Observe all standard
ESD precautions when handling opened power supplies and
instruments. Refer to section 5.2.1 on page 135.
5.1.1 Model 430 Programmer Routine Maintenance
The Model 430 Programmer was designed and manufactured to give years
of reliable service. The only routine maintenance required is to keep the
exterior surfaces of the Model 430 Programmer clean by gently wiping
with a damp cloth moistened with a mild detergent.
5.1.2 Model 4Q1010PS Power Supply Routine Maintenance
The Model 4Q1010PS is specifically designed to minimize the need for
periodic maintenance, and AMI does not recommend a periodic calibration
or service. Keep the exterior surfaces clean by gently wiping with a damp
cloth moistened with a mild detergent. The inside of the Model 4Q1010PS
unit should be periodically cleaned of dust and grime to ensure continued
cooling efficiency. The maintenance interval is dependent on the
application and environment; in normal laboratory environments the
recommended maintenance interval is six (6) months.
5.2 Troubleshooting Hints
The following paragraphs serve as an aid to assist the user in
troubleshooting a potential problem with a superconducting magnet
system. If the user is not comfortable in troubleshooting the system,
contact an AMI Technical Support Representative for assistance. Refer to
“Additional Technical Support” on page 143.
5.2.1 Electrostatic Discharge Precautions
The system contains components which are susceptible to damage by
Electrostatic Discharge (ESD). Take the following precautions whenever
the cover of electronic equipment is removed.
1. Disassemble only in a static-free work area.