Vacon NXS/P User's Manual Index
Document code: DPD00910A
Date: 30.01.2012
1. SAFETY............................................................................................................................... 8
1.1 Danger...........................................................................................................................................8
1.2 Warnings.......................................................................................................................................8
1.3 Cautions ........................................................................................................................................9
1.4 Earthing and earth fault protection ..............................................................................................9
1.5 Running the motor...................................................................................................................... 10
2. EU DIRECTIVE .................................................................................................................. 11
2.1 CE marking ................................................................................................................................. 11
2.2 EMC directive .............................................................................................................................. 11
2.2.1 General............................................................................................................................ 11
2.2.2 Technical criteria ............................................................................................................ 11
2.2.3 Vacon frequency converter EMC classification............................................................... 11
2.2.3.1 Environment definitions in product standard EN 61800-3 (2004)............................ 12
2.2.4 Manufacturer's declaration of conformity...................................................................... 12
3. RECEIPT OF DELIVERY..................................................................................................... 16
3.1 Type designation code................................................................................................................. 16
3.2 Storage........................................................................................................................................ 17
3.3 Maintenance................................................................................................................................ 17
3.3.1 Capacitor recharge ......................................................................................................... 17
3.4 Warranty ..................................................................................................................................... 18
4. TECHNICAL DATA............................................................................................................. 19
4.1 Introduction................................................................................................................................. 19
4.2 Power ratings.............................................................................................................................. 21
4.2.1 Vacon NX_2 – Mains voltage 208—240 V......................................................................... 21
4.2.2 Vacon NX_5 – Mains voltage 380—500 V......................................................................... 22
4.2.3 Vacon NX_6 – Mains voltage 525—690 V......................................................................... 23
4.2.4 Brake resistor ratings..................................................................................................... 24
4.3 Technical data............................................................................................................................. 26
5. INSTALLATION ................................................................................................................. 28
5.1 Mounting ..................................................................................................................................... 28
5.2 Cooling ........................................................................................................................................ 37
5.2.1 FR4 to FR9....................................................................................................................... 37
5.2.2 Standalone units (FR10 to FR11) .................................................................................... 39
5.3 Power losses............................................................................................................................... 41
5.3.1 Power losses as function of switching frequency........................................................... 41
6. CABLING AND CONNECTIONS ......................................................................................... 45
6.1 Power unit................................................................................................................................... 45
6.1.1 Power connections.......................................................................................................... 45
6.1.1.1 Mains and motor cables........................................................................................... 45
6.1.1.2 DC supply and brake resistor cables....................................................................... 46
6.1.1.3 Control cable............................................................................................................ 46
6.1.1.4 Cable and fuse sizes, NX_2 and NX_5, FR4 to FR9.................................................. 46
6.1.1.5 Cable and fuse sizes, NX_6, FR6 to FR9 .................................................................. 47
6.1.1.6 Cable and fuse sizes, NX_5, FR10 to FR11 .............................................................. 48
6.1.1.7 Cable and fuse sizes, NX_6, FR10 to FR11 .............................................................. 48
6.1.2 Understanding the power unit topology.......................................................................... 49
