Nxb - Brake Chopper Units - Vacon nxp Hardware Manual

Technical information
Table 20. Technical specifications for size FI9-FI14 inverter units (INU)
Overvoltage protection
Undervoltage protection
Earth fault protection
Output phase supervision Trips if any of the output phases is missing
Over current protection
Unit over temperature
Protection
protection
Motor overload protection Yes
Motor stall protection
Motor underload
protection
Short circuit protection of
+24 V and +10 V reference
voltages
5.3.4

NXB - Brake chopper units

Brake chopper units are available in frame sizes FI9-FI14. The technical specifications for brake
chopper units are the same as for inverter units (see Chapter 5.3.3.2).
24-hour support +358 (0)201 212 575 • Email: vacon@vacon.com
NXI_5: 911 V ; NXI_6: 1200 V
DC
NXI_5: 333 V ; NXI_6: 460 V
DC
In case of an earth fault in the motor or motor cable,
only the inverter is protected
Yes
Yes
Yes
Yes
Yes
vacon • 67
DC
DC
5