Lakeshore Learning Materials 642 - Manual (Page 5)

Lake Shore Model 642 Electromagnet Power Supply User’s Manual
Table of Contents v
TABLE OF CONTENTS
Chapter/Section Title Page
1 INTRODUCTION .................................................................................................................................................... 1-1
1.0 GENERAL ............................................................................................................................................. 1-1
1.1 DESCRIPTION...................................................................................................................................... 1-1
1.2 SPECIFICATIONS ................................................................................................................................ 1-3
1.3 SAFETY
SUMMARY............................................................................................................................. 1-7
1.4 SAFETY SYMBOLS.............................................................................................................................. 1-9
2 MAGNET SYSTEM DESIGN, INSTALLATION, AND OPERATION...................................................................... 2-1
2.0 GENERAL ............................................................................................................................................. 2-1
2.1 INTRODUCTION................................................................................................................................... 2-1
2.2 MAGNET
CONSTRUCTION ................................................................................................................. 2-2
2.3 CONNECTING THE MAGNET.............................................................................................................. 2-2
2.3.1 Water Hose Connection .................................................................................................................... 2-2
2.3.2 Magnet Coil Wiring ............................................................................................................................ 2-2
2.3.3 Temperature Switches and Flow Switches ........................................................................................ 2-4
2.3.4 Cooling Water and Water Valve ........................................................................................................ 2-4
2.3.5 Grounding.......................................................................................................................................... 2-4
2.3.6 Final
Check-Out................................................................................................................................. 2-5
2.4 ELECTROMAGNET OPERATION........................................................................................................ 2-5
2.4.1 Air
Gap and Pole Caps ...................................................................................................................... 2-5
2.4.2 Maximum Power and Current ............................................................................................................ 2-5
2.4.3 Operation Under Field Control........................................................................................................... 2-7
2.4.4 Avoiding Cooling Water Condensation .............................................................................................. 2-8
3 INSTALLATION...................................................................................................................................................... 3-1
3.0 GENERAL ............................................................................................................................................. 3-1
3.1 INSPECTION
AND UNPACKING ......................................................................................................... 3-1
3.1.1 Moving and Handling ............................................................................................................................ 3-1
3.2 REAR PANEL DEFINITION .................................................................................................................. 3-2
3.3 POWER WIRING AND SET-UP............................................................................................................ 3-3
3.3.1 Line Voltage Selection....................................................................................................................... 3-3
3.3.2 Circuit Breaker Setting....................................................................................................................... 3-4
3.3.3 Start-Up Fuses .................................................................................................................................. 3-5
3.3.4 Cable Entry........................................................................................................................................ 3-5
3.3.5 Power
Input Terminals....................................................................................................................... 3-5
3.3.6 Wiring Cover...................................................................................................................................... 3-6
3.3.7 Mains Wiring...................................................................................................................................... 3-7
3.4 MAGNET
CONNECTOR....................................................................................................................... 3-7
3.5 AUXILIARY CONNECTOR ................................................................................................................... 3-7
3.6 POWER
SUPPLY CONNECTOR ......................................................................................................... 3-8
3.7 COOLING WATER................................................................................................................................ 3-8
3.8 MAGNET CABLE CONNECTIONS....................................................................................................... 3-9
3.9 ANALOG INPUT/OUTPUT CONNECTIONS ...................................................................................... 3-11
3.9.1 External Current Programming ........................................................................................................ 3-11
3.9.2 Output Current and Voltage Monitors .............................................................................................. 3-11
3.10 COMPUTER INTERFACE .................................................................................................................. 3-11
3.10.1 RS-232C
Interface Connection........................................................................................................ 3-11
3.10.2 IEEE-488 Interface Connection ....................................................................................................... 3-11
3.11 CHASSIS CONNECTION ................................................................................................................... 3-11
3.12 DETACHABLE HANDLES .................................................................................................................. 3-12
3.13 RACK
MOUNTING.............................................................................................................................. 3-12