Lake Shore Model 620/622/623/647 Magnet Power Supply User’s Manual
Table of Contents i
TABLE OF CONTENTS
Chapter/Paragraph Title Page
List of Illustrations ......................................................................................................................................iv
List of Tables..............................................................................................................................................iv
Foreword .................................................................................................................................................... v
Purpose and Scope ................................................................................................................................ v
Hardware Covered.................................................................................................................................. v
Warnings, Cautions, and Notes .............................................................................................................. v
General Installation Precautions ............................................................................................................. v
Electrostatic Discharge ........................................................................................................................... v
Handling Electrostatic Discharge Sensitive Components....................................................................vi
Safe Handling of Liquid Cryogens .......................................................................................................vi
Magnet Quenches ...............................................................................................................................vi
Dangerous Voltages ...............................................................................................................................vi
Before You Operate the Equipment.......................................................................................................vii
Safety Summary ....................................................................................................................................vii
Safety Symbols ..................................................................................................................................... viii
1 INTRODUCTION ....................................................................................................................................1-1
1.0 General ...................................................................................................................................1-1
1.1 Features..................................................................................................................................1-1
1.2 Specifications..........................................................................................................................1-2
1.3 Operating Characteristics .......................................................................................................1-4
1.3.1 True, Four-Quadrant Bidirectional Power Flow ...................................................................1-4
1.3.2 Low Noise, High Stability Current Regulated Output...........................................................1-5
1.3.3 Highly Efficient, Air-Cooled, Compact Unit ..........................................................................1-5
2 INITIAL SETUP AND CONNECTIONS ..................................................................................................2-1
2.1 Inspecting and Unpacking ......................................................................................................2-1
2.2 MPS Mounting ........................................................................................................................2-1
2.3 Environmental Requirements .................................................................................................2-1
2.4 Connecting the MPS to Power................................................................................................2-1
2.4.1 Power and Ground Requirements .......................................................................................2-2
2.4.2 MPS Input Power Ratings....................................................................................................2-2
2.4.3 Input Power Connections ....................................................................................................2-2
2.5 Power Up ................................................................................................................................2-3
2.5.1 Magnet Cable Connections .................................................................................................2-3
2.5.2 Shielding, Grounding, and Noise .........................................................................................2-4
2.5.3 MPS Remote Inhibit and Fault Indicator Connections.........................................................2-4
2.5.4 AC On Indicator ...................................................................................................................2-4
2.5.5 OVP Connection..................................................................................................................2-4
2.5.6 MPS Analog Current and Voltage Monitoring Connections.................................................2-5
2.5.7 External Current Programming............................................................................................2-5
2.5.8 Remote Sense Connections................................................................................................2-5
2.6 Multiple Auto-Parallel Setup....................................................................................................2-6
2.6.1 Multiple MPS Remote Inhibit Mode .....................................................................................2-8
2.7 Post-Installation Instructions ...................................................................................................2-9
2.8 System Shutdown and Repackaging for Storage or Shipment...............................................2-9
2.9 Returning Equipment to Lake Shore.......................................................................................2-9
3 OPERATION...........................................................................................................................................3-1
3.0 General ...................................................................................................................................3-1
3.1 The MPS Front Panel .............................................................................................................3-1
3.2 Power UP................................................................................................................................3-2
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