Lakeshore Learning Materials 642 Manual do Utilizador descarregar pdf (Página 6)

Lake Shore Model 642 Electromagnet Power Supply User’s Manual

vi Table of Contents

TABLE OF CONTENTS (Continued)

Chapter/Section Title Page

4 OPERATION...........................................................................................................................................................4-1

4.0 GENERAL.............................................................................................................................................4-1

4.1 TURNING POWER ON......................................................................................................................... 4-1

4.2 DISPLAY DEFINITION..........................................................................................................................4-2

4.3 LED ANNUNCIATORS.......................................................................................................................... 4-2

4.3.1 Fault LED...........................................................................................................................................4-2

4.3.2 Compliance LED................................................................................................................................4-2

4.3.3 Power Limit LED................................................................................................................................ 4-2

4.3.4 Ramping LED .................................................................................................................................... 4-2

4.3.5 Remote LED......................................................................................................................................4-2

4.4 KEYPAD DEFINITION ..........................................................................................................................4-3

4.4.1 General Keypad Operation................................................................................................................ 4-4

4.5 DISPLAY SETUP .................................................................................................................................. 4-4

4.6 SETTING OUTPUT CURRENT ............................................................................................................4-4

4.7 CURRENT RAMP RATE.......................................................................................................................4-5

4.8 RAMP SEGMENTS............................................................................................................................... 4-5

4.9 PAUSE RAMP.......................................................................................................................................4-6

4.10 ZERO OUTPUT ....................................................................................................................................4-6

4.11 MAXIMUM SETTING LIMITS................................................................................................................4-7

4.11.1 Maximum Output Current ..................................................................................................................4-7

4.11.2 Maximum Current Ramp Rate ...........................................................................................................4-7

4.12 MAGNET WATER.................................................................................................................................4-8

4.13 INTERNAL WATER...............................................................................................................................4-8

4.14 ERROR STATUS DISPLAY..................................................................................................................4-8

4.15 EXTERNAL CURRENT PROGRAMMING............................................................................................ 4-9

4.16 LOCKING THE KEYPAD ......................................................................................................................4-9

4.17 COMPUTER INTERFACE ..................................................................................................................4-10

4.17.1 Changing Serial Baud Rate .............................................................................................................4-10

4.17.2 Changing IEEE-488 Interface parameters ....................................................................................... 4-11

4.18 DEFAULT PARAMETER VALUES..................................................................................................

.... 4-11

5 COMPUTER INTERFACE OPERATION................................................................................................................5-1

5.0 GENERAL.............................................................................................................................................5-1

5.1 IEEE-488 INTERFACE..........................................................................................................................5-1

5.1.1 Changing IEEE-488 Interface Parameters......................................................................................... 5-2

5.1.2 Remote/Local Operation.................................................................................................................... 5-2

5.1.3 IEEE-488 Command Structure .......................................................................................................... 5-2

5.1.3.1 Bus Control Commands .................................................................................................................5-3

5.1.3.2 Common Commands ..................................................................................................................... 5-3

5.1.3.3 Device Specific Commands ........................................................................................................... 5-3

5.1.3.4 Message Strings ............................................................................................................................5-3

5.1.4 Status System ...................................................................................................................................5-4

5.1.4.1 Overview........................................................................................................................................ 5-4

5.1.4.1.1 Condition Registers ....................................................................................................................5-4

5.1.4.1.2 Event Registers .......................................................................................................................... 5-4

5.1.4.1.3 Enable Registers ........................................................................................................................ 5-4

5.1.4.1.4 Status Byte Register...................................................................................................................5-4

5.1.4.1.5 Service Request Enable Register...............................................................................................5-4

5.1.4.1.6 Reading Registers...................................................................................................................... 5-7

5.1.4.1.7 Programming Registers..............................................................................................................5-7

5.1.4.1.8 Clearing Registers...................................................................................................................... 5-7

1 2 3 4 5 6 7 8 9 10 11 ... 121 122

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