Vacon NX User Manual page 28

vacon • 26
Table 9. Power ratings of VACON
Mains voltage 525-690 VAC, 50/60 Hz, 3~, 12-pulse drives
0416_6 416
0460_6 460
0502_6 502
0820_6 820
0920_6 920
1030_6 1030
1180_6 1180
1300_6 1300
1500_6 1500
1700_6 1700
1850_6 1850
2120_6 2120
2340_6 2340
2700_6 2700
3100_6 3100
I = Thermal maximum continuous RMS current. Dimensioning can be done according to this current if the
th
process does not require any overloadability or the process does not include any load variation.
I = Low overloadability current. Allows +10% load variation. 10% exceeding can be continuous.
L
I = High overloadability current. Allows +50% load variation. 50% exceeding can be continuous.
H
All values with cosϕ = 0.83 and efficiency = 97%.
*) c = power loss into coolant; a = power loss into air; T = total power loss; power losses of input chokes not
included. All power losses obtained using max. supply voltage, I
Closed Loop control mode. All power losses are worst case losses.
If some other mains voltage is used, apply the formula
NX Liquid-Cooled drive output power.
The enclosure class for all VACON
If the motor is continuously (besides start and stop ramps) run at frequencies below 5 Hz, pay attention to the
drive dimensioning for low frequencies, i.e. maximum I
recommended to check the rating with your nearest distributor.
Drive overrating may also be necessary if the process requires high starting torque.
Table 10. Internal brake chopper unit (BCU) ratings, braking voltage 840—1100 VDC
Loadability
Rated min
AC drive Type
resistance
1)
NX_325 6
1)
NX_385 6
1)
NX_416 6
4
supply voltage 525—690 VAC
378 277
418 307
456 335
745 547
836 613
936 687
1073 787
1182 867
1364 1000
1545 1133
1682 1233
1927 1413
2127 1560
2455 1800
2818 2067
®
NX Liquid-Cooled AC drives is IP00.
Internal brake chopper ratings, braking voltage 840-1100 Vdc
Braking capacity at 840 Vdc
Rated cont. brak-
ing power
[Ω] [kW]
2.8 252
2.8 252
2.8 252
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
®
NX Liquid-Cooled AC drive (12-pulse),
250 355
315 400
355 450
600 750
650 850
750 950
800 1100
950 1200
1050 1400
1150 1550
1250 1650
1450 1900
1600 2100
1850 2450
2150 2800
and switching frequency of 3.6 kHz and
th
3
P = x Un x In x cos
= 0.66*I or choose drive according to I
H th
Braking capacity at 1100 Vdc
BCU rated cont.
Rated cont. brak-
braking current,
ing power
I
br
[kW]
[A]
300 432
300 432
300 432
Technical data
9.1/0.5/9.6 CH72
10.0/0.5/10.5 CH72
11.2/0.6/11.8 CH72
17.3/1.0/18.3 CH74
19.4/1.1/20.5 CH74
21.6/1.2/22.8 CH74
25.0/1.3/26.3 CH74
27.3/1.5/28.8 CH74
32.1/1.7/33.8 CH74
36.5/1.9/38.4 Ch74
39.0/2.0/41.0 2*CH74
44.9/2.4/47.3 2*CH74
49.2/2.6/51.8 2*CH74
57.7/3.1/60.8 2*CH74
65.7/3.4/69.1 2*CH74
ϕ
to calculate the VACON
x eff%
. It is
H
BCU rated cont.
Chassis
braking current,
I
br
[A]
392
392
392
®
Ch72
Ch72
Ch72