4
vacon • 26
Active Front End (AFE)
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4.4
Active Front End unit technical data
Table 7. Technical specification for VACON
®
NXA Active Front End unit
AC input connection
Voltage U
in
380...500 Vac; 525...690 Vac; UL rating up to 600 V,
–10%…+10%
Frequency f
in
48–63 Hz
Starting delay
FI9–FI13: 5 s
DC bank capacitance
FI9_5 : 4950μF; FI9_6 : 3733μF
FI10_5: 9900μF; FI10_6: 7467μF
FI13_5: 29700μF; FI13_6: 22400μF
DC output
connection
Voltage
1.35 x U
in
x 1.1 (default DC link voltage boosting is
110%).
Continuous output
current
I
H
: Ambient tempe40 °C (104 °F),
overloadability 1.5 x I
H
(1 min./10 min.).
•
For 40 - 50 °C (104 - 122°F), the ambient
temperatures use derating factor IH*1.5%/1
°C (°F).
•
For 50 – 55 °C (122 - 131°F), the ambient
temperatures use derating factor IH*2.5% /1
°C (°F).
I
L
: Ambient tempe40 °C(104 °F),
overloadability 1.1 x I
L
(1 min./10 min.).
Control
characteristics
Control system
Open Loop Vector Control
Switching frequency
NXA_xxxx 5: 3.6 kHz
NXA_xxxx 6: 3.6 kHz
Ambient conditions
Ambient temperature
during operation
I
H
/I
L
: –10°C (-14 °F) (no frost)…+40°C (104 °F)
Maximum tempe55 °C (131 °F), see Power
derating as a function of ambient temperature.
