Table Of Contents - Control Techniques Unidrive Regen Installation Manual

Table of Contents

Introduction....................................................................................................................1

1.1

Principles of operation ...........................................................................................................................1

1.2

Power flow .............................................................................................................................................2

1.3

Advantages of Unidrive operating in Regen mode ................................................................................2

Sizing of a Regen system .............................................................................................3

Power connections........................................................................................................4

3.1

Overall system layout ............................................................................................................................4

3.2

Non standard configurations ..................................................................................................................7

Control circuit connections ..........................................................................................8

4.1

Digital / Analog I/O set-up in Regen mode ............................................................................................8

4.2

Regen inductor thermistors ....................................................................................................................9

Components.................................................................................................................10

5.1

Motoring drive ......................................................................................................................................10

5.2

Regen drive .........................................................................................................................................10

5.3

Regen inductor ....................................................................................................................................10

5.4

Softstart resistor ...................................................................................................................................11

5.5

Contactors, MCBs and overload ..........................................................................................................11

5.6

Switching frequency filter .....................................................................................................................12

5.7

RFI filter ...............................................................................................................................................13

5.8

Varistors ...............................................................................................................................................13

5.9

Fusing ..................................................................................................................................................14

Important considerations............................................................................................16

6.1

Fundamentals ......................................................................................................................................16

6.2

Unidrive size 3 and 4 ...........................................................................................................................16

6.3

Ventilation ............................................................................................................................................16

6.4

Cable length restrictions ......................................................................................................................17

Unidrive Regen EMC information...............................................................................19

7.1

Immunity ..............................................................................................................................................19

7.2

Emission ..............................................................................................................................................19

7.3

Dedicated supplies ..............................................................................................................................19

7.4

Other supplies ......................................................................................................................................19

7.5

Supply voltage notching .......................................................................................................................19

7.6

Supply harmonics ................................................................................................................................19

7.7

Switching frequency emission .............................................................................................................19

7.8

Conducted RF emission ......................................................................................................................19

7.9

Radiated emission ...............................................................................................................................21

7.10

Wiring guidelines .................................................................................................................................21

7.11

Multi-drive systems ..............................................................................................................................21

Parameter descriptions...............................................................................................22

8.1

Menu 15: Sinusoidal rectifier ...............................................................................................................22

Commissioning and operation ...................................................................................28

9.1

Regen parameter settings ...................................................................................................................28

9.2

Regen drive sequencing ......................................................................................................................28

9.3

Regen drive commissioning .................................................................................................................29

9.4

Motoring drive commissioning .............................................................................................................29

9.5

Trip codes ............................................................................................................................................29

Unidrive Regen Installation

Issue Number: 2

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