Nx Networks NX series - Manual (Page 5)

5(86)
NX User's Manual
Index
1. SAFETY.................................................................................................................................. 7
1.1 W ARNINGS ...................................................................................................................................... 7
1.2 S AFETY INSTRUCTIONS .................................................................................................................... 7
1.3 E ARTHING AND EARTH FAULT PROTECTION ........................................................................................ 8
1.4 R UNNING 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 T YPE DESIGNATION CODE ............................................................................................................... 12
3.2 S TORAGE ...................................................................................................................................... 12
3.3 M AINTENANCE ............................................................................................................................... 13
3.4 W ARRANTY ................................................................................................................................... 13
4. TECHNICAL DATA .............................................................................................................. 14
4.1 I NTRODUCTION .............................................................................................................................. 14
4.2 P OWER RATINGS ........................................................................................................................... 16
4.2.1 NX5 – Mains voltage 380—500 V............................................................................................ 16
4.3 T ECHNICAL DATA ........................................................................................................................... 17
5. INSTALLATION.................................................................................................................... 19
5.1 M OUNTING .................................................................................................................................... 19
5.2 C OOLING ....................................................................................................................................... 25
5.3 P OWER LOSS ................................................................................................................................. 26
5.3.1 Power loss as function of switching frequency......................................................................... 26
6. CABLING AND CONNECTIONS ......................................................................................... 28
6.1 P OWER 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 C ONTROL 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