Vacon NX - Page 34

4
vacon • 32 Technical data
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
Control
characteristics
Control method
Frequency control U/f
Open Loop Sensorless Vector Control
Closed Loop Vector Control
Switching frequency
NX_5:
NX_6/
NX_8:
Up to and including NX_0061:
1…16 kHz; Factory default 10 kHz
From NX_0072:
1…12 kHz; Factory default 3.6 kHz
1…6 kHz; Factory default 1.5 kHz
NOTE!
NOTE!
Derating required if higher switching
frequency than the default is used!
DriveSynch paralleling concept:
Recommended minimum switching
frequency for open loop control 1.7 kHz and
closed loop control 2.5 kHz. Maximum
switching frequency 3.6 kHz.
Frequency reference
Analogue input
Panel reference
Resolution 0.1% (10-bit), accuracy ±1%
Resolution 0.01 Hz
Field weakening point 8…320 Hz
Acceleration time 0.1…3000 sec
Deceleration time 0.1…3000 sec
Braking torque
DC brake: 30% * T
N
(without brake option)
Table 13. Technical data