Vacon NX User Manual

vacon • 3
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
11.2.1 Non-regenerative Front End Unit wiring diagrams ......................................................175
11.3 Installation of the NFE control cables ...........................................................................178
11.4 Type designation codes..................................................................................................179
11.5 Power ratings.................................................................................................................180
11.6 Non-regenerative Front End unit technical data ..........................................................181
11.7 Dimensions.....................................................................................................................183
11.8 Chokes............................................................................................................................184
11.9 Non-regenerative front end - fuse selection.................................................................185
11.9.1 Fuse sizes, Non-regenerative Front End units .............................................................186
11.9.2 Circuit breaker settings, Non-regenerative Front End units........................................186
11.10 Settings ..........................................................................................................................186
11.10.1Phase monitor settings.................................................................................................186
11.10.2Option board settings....................................................................................................187
11.11 DC pre-charging circuit .................................................................................................188
11.12 Paralleling......................................................................................................................189
11.13 Parameters ....................................................................................................................190
11.14 CH60 Liquid-cooled NFE protections ............................................................................195
11.15 Fault codes.....................................................................................................................196
12. Brake chopper unit (NXB) ............................................................................199
12.1 Introduction....................................................................................................................199
12.2 Type designation code....................................................................................................199
12.3 Diagrams ........................................................................................................................199
12.3.1 NXB Brake Chopper Unit block diagram.......................................................................199
12.3.2 VACON® NXB topologies and connection .....................................................................200
12.4 Brake chopper unit technical data ................................................................................201
12.5 BCU power ratings.........................................................................................................204
12.5.1 VACON® NXB; DC voltage 460–800 V............................................................................204
12.5.2 VACON® NXB; DC voltage 640–1100 V..........................................................................205
12.6 VACON® brake resistors and brake chopper dimensioning ........................................206
12.6.1 Braking energy and losses ............................................................................................206
12.6.2 Braking power and resistance, mains voltage 380–500 Vac/600–800 Vdc ...................208
12.6.3 Braking power and resistance, mains voltage 525–690 Vac/840–1100 Vdc .................210
12.7 Brake chopper unit – Fuse selection.............................................................................212
13. Appendices...................................................................................................214

Vacon NX Specifications

General

Product Type	AC Drive
Control Method	Scalar Control
Enclosure	IP00, IP21
Communication	Ethernet
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Ambient Temperature Range	-10°C to +50°C (with derating above +40°C)
Cooling Method	Air-cooled, Liquid-cooled