Vacon NX - VACON NXB Topologies and Connection

12
vacon • 200 Brake chopper unit (NXB)
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
12.3.2 VACON
®
NXB topologies and connection
Figure 107. Brake chopper unit topology
Figure 108. VACON
®
Brake Chopper Unit connections
DC+
DC-
U/T1
V/T2
W/T3
Resistor DC+
DC+
DC-
U/L1
V/L2
Resistor DC+
Resistor DC-
W/L3
NXB (Brake Chopper Unit) + one resistor
is a braking power control unit.
Unnecessary energy is burnt off
NXB (Brake Chopper Unit) + two resistors
is a braking power control unit.
Unnecessary energy is burnt off
11403_uk
DC+
DC-
Resistor
Resistor
W/T3
U/T1
V/T2
11404_uk