Vacon NX User Manual page 19

TECHNICAL DATA
+
DC supply
-
PE
*Brake resistor is available for all sizes (CH3 to CH7).
An internal brake chopper belongs to standard equipment in sizes CH3 only, while in all other
sizes it is optional but installed externally.
Figure 2. Vacon NX Liquid-Cooled inverter principal block diagram
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Brake resistor*
Power
module
Power
Supply
Control
module
Control
Keypad
Motor and
Application
RS 232
Control
Control Control Control
I/O I/O I/O
Brake
3)
Chopper*
IGBT
Current
Inverter
Sensors
=
2)
3~
Measure-
ments
Gate
Drivers
Motor
Control
ASIC
Control Control
I/O I/O
vacon • 17
Motor
U/T1
V/T2
W/T3
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