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DC−bus operation

Introduction

Terminology and abbreviations used

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108

EDS700ACBA EN 4.0

7 DC−bus operation

7.1 Introduction

7.1.1 Terminology and abbreviations used

Explanations of special terms concerning DC−bus operation can be found in the chapter

"About this documentation" under "Terminology and abbreviations used" ( 10).

7.1.2 Advantages of a drive system

When several controllers are operated in a DC−bus connection (DC bus), this offers the

following advantages:

ƒ Energy exchange between controllers in generator−mode (braking) and motor−mode

operation.

ƒ The energy exchange reduces the supply power from the AC mains.

ƒ DC−supply modules or feeding single−axis controllers can be dimensioned with a

lower rated power.

ƒ The energy exchange reduces the braking losses in generator−mode operation.

Advantages for installation:

ƒ Only one AC−mains connection (e.g. at the DC−supply module).

ƒ Reduced wiring costs.

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Lenze i700 Manual Bedienungsanleitung Seite 108