Vacon NX User Manual page 21

TECHNICAL DATA
Table 1. Power ratings of NX Liquid-Cooled frequency converter (6-pulse),
Mains voltage 400-500 VAC, 50/60 Hz, 3~, 6-pulse drives
3710_5 3710
4140_5 4140
Table 2. Power ratings of NX Liquid-Cooled frequency converter (12-pulse),
Mains voltage 400-500 VAC, 50/60 Hz, 3~, 12-pulse drives
Converter
Thermal
type
Rated cont. I
I
th
[A]
0460_5 460
0520_5 520
0590_5 590
0650_5 650
0730_5 730
1370_5 1370
1640_5 1640
2060_5 2060
2470_5 2470
2950_5 2950
3710_5 3710
4140_5 4140
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 or margin for
overloadability.
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
Liquid-Cooled drive output power.
The enclosure class for all NX Liquid-Cooled frequency converters is IP00.
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 distributor or Vacon.
Drive overrating may also be necessary if the process requires high starting torque.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
supply voltage 400-500 VAC
3372 2473
3763 2760
supply voltage 400-500 VAC
Drive output
Current
Rated
L
contin. I motor at I
H
[A]
[A] (400 V) [kW]
418 307
473 347
536 393
591 433
664 487
1245 913
1491 1093
1873 1373
2245 1647
2681 1967
3372 2473
3763 2760
1950 2450
2150 2700
Motor output power
Optimum Optimum
motor at I
th th
(500 V) [kW]
250 315
250 355
315 400
355 400
400 450
700 900
850 1050
1050 1350
1300 1600
1550 1950
1950 2450
2150 2700
and switching frequency of 3.6 kHz and
th
P = x Un x In x cosϕ x eff%
3
= 0.66*I or choose drive according to I
H th
vacon • 19
58.2/3.0/61.2 2*CH74
65.0/3.6/68.6 2*CH74
Power loss
*)
Chassis
c/a/T
[kW]
6.5/0.5/7.0 CH72
7.5/0.6/8.1 CH72
9.0/0.7/9.7 CH72
10.0/0.7/10.7 CH72
12.0/0.8/12.8 CH72
19.0/1.2/20.2 CH74
24.0/1.4/25.4 CH74
32.5/1.8/34.3 CH74
38.8/2.2/41.0 2*CH74
46.3/2.6/48.9 2*CH74
58.2/3.0/61.2 2*CH74
65.0/3.6/68.6 2*CH74
to calculate the NX
. It is
H
4