Lakeshore 642 Manuals

Manuals and User Guides for Lakeshore 642. We have 1 Lakeshore 642 manual available for free PDF download: User Manual

Lakeshore 642 User Manual

Lakeshore 642 User Manual (122 pages)

Electromagnet Power Supply

Brand: Lakeshore | Category: Power Supply | Size: 2.64 MB

Table of Contents

Power Supply
1
Table of Contents
5
Chapter/Section Page

11
Introduction

11
- Description
  11
- General
  11
- Figure No.
  
  12
- Model 642 Front Panel
  12
- Specifications
  13
- Safety Summary
  17
- Safety Symbols
  19
Magnet System Design, Installation, and Operation

21
Installation

29
- General
  29
- Inspection and Unpacking
  29
- Moving and Handling
  29
Table No.

30
- Rear Panel Definition
  30
- Rear Panel Connector Identification
  30
  - Power Wiring and Set-Up
    31
  - Line Voltage Selection
    31
  - Model 642 Rear Panel
    31
- Voltage and Current Selection
  31
  - Circuit Breaker Setting
    32
  - Voltage Change Detail
    32
  - Start-Up Fuses
    33
  - Cable Entry
    33
  - Power Input Terminals
    33
  - Wiring Cover
    34
  - Typical Power Input Wiring
    34
  - Wiring Cover Installation
    34
  - Mains Wiring
    35
  - Magnet Connector
    35
  - Auxiliary Connector
    35
  - Power Supply Connector
    36
  - Cooling Water
    36
  - Typical Power Supply Connector Wiring
    36
  - Typical Water Hose Connection
    36
  - Magnet Cable Connections
    37
  - Water Valve Connection
    37
  - Current Capacity and Total Lead Lengths
    37
  - Output Cable Connection
    38
- Output Lug Cover Installation
  38
  - Analog Input/Output Connections
    39
  - External Current Programming
    39
  - Output Current and Voltage Monitors
    39
  - Computer Interface
    39
  - RS-232C Interface Connection
    39
  - IEEE-488 Interface Connection
    39
  - Chassis Connection
    39
  - Analog Input/Output Connector
    39
  - Detachable Handles
    40
  - Rack Mounting
    40
  - Mounting Hole Pattern
    40
Chapter/Section Page

41
Operation

41
- General
  41
- Turning Power on
  41
- Model 642 Power Push Buttons
  41
  - Display Definition
    42
  - Led Annunciators
    42
  - 4.3.1 Fault LED
    42
  - 4.3.2 Compliance LED
    42
  - 4.3.3 Power Limit LED
    42
  - 4.3.4 Ramping LED
    42
  - 4.3.5 Remote LED
    42
  - Model 642 LED Descriptions
    42
  - Keypad Definition
    43
- Model 642 Keypad and LED Layout
  43
- Model 642 Key Descriptions
  43
  - General Keypad Operation
    44
  - Display Setup
    44
  - Setting Output Current
    44
  - Current Ramp Rate
    46
  - Ramp Segments
    46
  - Pause Ramp
    46
  - Zero Output
    46
  - Maximum Setting Limits
    47
  - Maximum Output Current
    47
  - Maximum Current Ramp Rate
    47
  - Magnet Water
    48
  - Internal Water
    48
  - Error Status Display
    48
  - External Current Programming
    49
  - Locking the Keypad
    49
  - Computer Interface
    50
  - Changing Serial Baud Rate
    50
  - Changing IEEE-488 Interface Parameters
    51
  - Default Parameter Values
    51
  - Default Parameter Values
    52
Computer Interface Operation

53
- General
  53
- Ieee-488 Interface
  53
- Changing IEEE-488 Interface Parameters
  54
- Remote/Local Operation
  54
- IEEE-488 Command Structure
  54
- Bus Control Commands
  55
- Common Commands
  55
- Device Specific Commands
  55
- Message Strings
  55
- Status System
  56
- Overview
  56
- Condition Registers
  56
- Event Registers
  56
- Enable Registers
  56
  - Status Byte Register
    56
  - Service Request Enable Register
    56
- Status Byte Register
  57
- Model 642 Status System
  57
  - Service Request Enable Register
    59
  - Reading Registers
    59
  - Programming Registers
    59
  - Clearing Registers
    59
  - Status Register Sets
    59
Chapter/Section Page

59
Options and Accessories

91
- General
  91
- Accessories Included
  91
- Accessories Available
  91
Service

93
- General
  93
- Contacting Lake Shore Cryotronics
  93
- Returning Products to Lake Shore
  93
- Line Voltage Selection
  94
- Model 642 Rear Panel
  94
- Voltage Change Detail
  95
- Circuit Breaker Setting
  95
- Voltage and Current Selection
  95
  - Power Line Fuse Replacement
    96
  - Circuit Breaker
    96
  - Error Messages
    97
  - Fuse Holder Detail
    97
  - Instrument Hardware Errors
    97
  - Electrostatic Discharge
    98
  - Identification of Electrostatic Discharge Sensitive Components
    98
  - Operational Errors
    98
Chapter/Section Page

99
- Handling Electrostatic Discharge Sensitive Components
  99
- Removal
  99
- Installation
  99
- Firmware Replacement
  99
- Board Locations
  101
- Digital Board Parts Locations
  102
- Connector and Cable Definitions
  103
- Analog I/O Connector
  103
- Magnet Connector
  103
  - Analog I/O Connector Details
    103
  - Magnet Connector Details
    103
- Auxiliary Connector
  104
- Auxiliary Connector Detail
  104
- Power Supply Connector
  105
- RS-232C Serial Interface Connector
  105
- Power Supply Connector Details
  105
- Serial Interface Cable Wiring
  106
- IEEE-488 Parallel Interface Connector
  106
- IEEE-488 Connector Details
  107
- Calibration
  108
- Calibration Interface
  108
- Calibration Equipment
  109
- Calibration Procedure
  109
- Calibrate Current Output Zero
  109
- Calibrate Current Reading Zero
  109
- Calibrate Output Voltage Reading Zero
  110
- Calibrate Output Current Gain (Span)
  110
- Calibrate Current Reading Gain
  112
- Calibrate Voltage Reading Gain
  112
- Calibrate External Current Programming Voltage Reading Gain
  113
- Calibrate Specific Interface Commands
  113
Appendix A - Glossary of Terminology

115

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