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
Содержание NX
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