Vacon NX User Manual

4
vacon • 20 Technical data
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
Figure 1. VACON
®
NX Liquid-Cooled AC drive principal block diagram
=
=
L1
L2
L3
PE
U/T1
V/T2
W/T3
3~
3~
RS 232
3065_uk
Mains
Motor
Measure-
ments
Gate
Drivers
Motor
Control
ASIC
Motor and
Application
Control
Control
Keypad
Current
Sensors
Rectifier
(frequency
converters only)
IGBT
Inverter
Power
Supply
Control
I/O
Control
I/O
Control
I/O
Control
I/O
Control
I/O
1)
2)
3)
External
choke
*Brake resistor is available for all sizes (CH3 to CH7). An internal brake chopper belongs to standard
equipment in sizes CH3. For CH72 (only 6-pulse) and CH74, it is available as internal option while in
all other sizes it is optional but installed externally.
Control
module
Power
module
Charg.res.
Brake
Chopper*
Brake resistor*

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