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KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 3.63 through 3.86 User Manual

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SERIES EL 020498

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TABLE OF CONTENTS

SECTION

PAGE

SECTION 1 - INTRODUCTION

1.1

Scope of Manual......................................................................................................................................... 1-1

1.2

Introduction ................................................................................................................................................. 1-1

1.3

General Description .................................................................................................................................... 1-1

1.4

Operating Modes ........................................................................................................................................ 1-3

1.4.1

CI (Constant Current). ............................................................................................................................. 1-3

1.4.2

CV (Constant Voltage) ............................................................................................................................ 1-3

1.4.3

CP (Constant Power) .............................................................................................................................. 1-3

1.4.4

CR (Constant Resistance)....................................................................................................................... 1-3

1.4.5

CS (Constant Conductance) ................................................................................................................... 1-3

1.4.6

Short........................................................................................................................................................ 1-3

1.4.7

Off............................................................................................................................................................ 1-3

1.5

Features...................................................................................................................................................... 1-3

1.5.1

Local Control ........................................................................................................................................... 1-3

1.5.2

Remote Control ....................................................................................................................................... 1-4

1.5.3

Analog Programming............................................................................................................................... 1-4

1.5.4

Digital Calibration .................................................................................................................................... 1-4

1.5.5

Damping .................................................................................................................................................. 1-4

1.5.6

Built-in Protection .................................................................................................................................... 1-4

1.5.7

Master/Slave Control............................................................................................................................... 1-4

1.6

Specifications.............................................................................................................................................. 1-5

1.7

Equipment Supplied.................................................................................................................................... 1-6

1.8

Accessories ................................................................................................................................................ 1-7

1.9

Options ....................................................................................................................................................... 1-7

1.10

Safety.......................................................................................................................................................... 1-7

SECTION 2 - INSTALLATION

2.1

Unpacking and Inspection .......................................................................................................................... 2-1

2.2

Terminations and Controls.......................................................................................................................... 2-1

2.2.1

Front Panel Controls and Indicators........................................................................................................ 2-1

2.2.2

Rear Panel Connections. ........................................................................................................................ 2-1

2.3

Mains Power Requirements........................................................................................................................ 2-5

2.3.1

Changing Mains Power Voltage .............................................................................................................. 2-6

2.4

Cooling........................................................................................................................................................ 2-7

2.5

Installation................................................................................................................................................... 2-8

2.5.1

Rack Mounting ........................................................................................................................................ 2-8

2.5.2

Slide Mounting......................................................................................................................................... 2-8

2.6

Wiring Instructions ...................................................................................................................................... 2-8

2.6.1

Mains Power............................................................................................................................................ 2-9

2.6.2

Unit Under Test (UUT) to Load Connection ............................................................................................ 2-9

2.6.2.1

Power Connections ............................................................................................................................ 2-9

2.6.2.2

Sense Connections ............................................................................................................................ 2-10

2.6.2.3

Grounding .......................................................................................................................................... 2-11

2.6.3

Parallel Master/Slave Configurations ...................................................................................................... 2-11

2.6.4

Analog Control Connections.................................................................................................................... 2-12

2.6.5

Current Monitor Connections .................................................................................................................. 2-13

2.7

Digital Connections..................................................................................................................................... 2-13

2.7.1

Standard Units......................................................................................................................................... 2-13

2.7.2

G Option - GPIB Interface ....................................................................................................................... 2-13

2.7.3

E Option - Ethernet Interface................................................................................................................... 2-13

SECTION 3 - OPERATION

3.1

General ....................................................................................................................................................... 3-1

3.2

Factory Default Settings ............................................................................................................................. 3-1

3.3

Turning the Unit On .................................................................................................................................... 3-2

3.3.1

Error Conditions ...................................................................................................................................... 3-2

3.4

Selecting the Mode and Setpoint................................................................................................................ 3-2