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9
Checksum Errors. 58
Runtime Error Messages 58
USER CONNECTIONS 59
Rear Panel Connections (All Models) 59
Load Wire Selection (All Models) 59
Analog Connector (All Models) 60
Digital Connector (All Models) 60
Connecting Series 664xA and 665xA Power Supplies to the Load 61
Output Isolation 61
Load Considerations 61
Local Voltage Sensing 62
Remote Voltage Sensing 63
Connecting One Supply to the Load 64
Connecting Supplies in Auto-Parallel 65
Connecting Supplies in Series 67
External Voltage Control 67
Connecting Series 667xA Power Supplies to the Load 68
Output Isolation 68
Load Considerations 69
Local Voltage Sensing 70
Remote Voltage Sensing 70
Connecting One Power Supply to a Single Load 72
Connecting One Power Supply To Multiple Loads 72
Connecting Supplies in Auto-Parallel 73
Connecting Supplies in Series 74
External Voltage Control 75
Connecting Series 668xA and 669xA Power Supplies to the Load 76
Output Isolation 76
Load Considerations 76
Local Voltage Sensing 77
Remote Voltage Sensing 77
Connecting One Power Supply to a Single Load 79
Connecting One Power Supply to Multiple Loads 79
Connecting Supplies in Auto-Parallel 80
Connecting Supplies in Series 81
External Voltage Control 82
Controller Connections 83
Stand-Alone Connections 83
Linked Connections 83
FRONT PANEL OPERATION 85
Introduction 85
Getting Acquainted 85
Programming the Output 88
Establishing Initial Conditions 88
Programming Voltage 89
Programming Overvoltage Protection 89
Programming Current 90
Programming Overcurrent Protection 91
CV Mode vs. CC Mode 91
Unregulated Operation 92
Saving and Recalling Operating States 92
Turn-On Conditions 92
Setting the GPIB Address 93
Types of Power Supply GPIB Addresses 93
Changing the Power Supply GPIB Address 93
CALIBRATION 95