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NX User's Manual

Index

1.

SAFETY

7

1.1

WARNINGS

7

1.2

SAFETY INSTRUCTIONS

7

1.3

EARTHING AND EARTH FAULT PROTECTION

8

1.4

RUNNING THE MOTOR

8

2.

EU DIRECTIVE

9

2.1

CE MARKING

9

2.2

EMC DIRECTIVE

9

2.2.1

General

9

2.2.2

Technical criteria

9

2.2.3

NX frequency converter EMC classification

9

2.2.4

Manufacturer's declaration of conformity

10

3.

RECEIPT OF SHIPMENT

12

3.1

TYPE DESIGNATION CODE

12

3.2

STORAGE

12

3.3

MAINTENANCE

13

3.4

WARRANTY

13

4.

TECHNICAL DATA

14

4.1

INTRODUCTION

14

4.2

POWER RATINGS

16

4.2.1

NX5 – Mains voltage 380—500 V

16

4.3

TECHNICAL DATA

17

5.

INSTALLATION

19

5.1

MOUNTING

19

5.2

COOLING

25

5.3

POWER LOSS

26

5.3.1

Power loss as function of switching frequency

26

6. CABLING AND CONNECTIONS

28

6.1

POWER UNIT

28

6.1.1

Power connections

30

6.1.1.1

Mains cable

30

6.1.1.2

Motor cable

30

6.1.1.3

Control cable

30

6.1.1.4

Cable and fuse sizes

31

6.1.2

Installation instructions

32

6.1.2.1

Stripping lengths of motor and mains cables

34

6.1.2.2

NX frequency converter frames and installation of cables

35

6.1.3

Cable installation and the UL standards

39

6.1.4

Cable and motor insulation checks

39

6.2

CONTROL UNIT

40

6.2.1

Control connections

40

6.2.1.1

Control cables

42

6.2.1.2

Galvanic isolation barriers

42

6.2.2

Control terminal signals

43

6.2.2.1

Digital input signal inversions

44

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Nx Networks NX series user manual 586, Index