TECHNICAL DATA
vacon • 23
24-hour s358 (0)40 837 1150 • Email: [email protected]
4
4.2.2.2
Vacon NX Liquid-Cooled Inverter Unit – Mains voltage 640—1100 VDC
Mains voltage 640-1100 VDC
Drive output
Current
Motor output power
Inverter
type
Thermal
I
th
[A]
Rated
cont. I
L
[A]
Rated
cont.
I
H
[A]
Optimum mo-
tor at I
th
(710VDC) [kW]
Optimum mo-
tor at I
th
(930VDC) [kW]
Power loss
c/a/T
*)
[kW]
Chas-
sis
0170_6
170
155
113
110
160
4,5/0,2/4,7
CH61
0208_6
208
189
139
132
200
5,5/0,3/5,8
CH61
0261_6
261
237
174
160
250
5,5/0,3/5,8
CH61
0325_6
325
295
217
200
300
6,5/0,3/6,8
CH62
0385_6
385
350
257
250
355
7,5/0,4/7,9
CH62
0416_6
416
378
277
250
355
8,0/0,4/8,4
CH62
0460_6
460
418
307
300
400
8,5/0,4/8,9
CH62
0502_6
502
456
335
355
450
10,0/0,5/10,5
CH62
0590_6
590
536
393
400
560
10,0/0,5/10,5
CH63
0650_6
650
591
433
450
600
13,5/0,7/14,2
CH63
0750_6
750
682
500
500
700
16,0/0,8/16,8
CH63
0820_6
820
745
547
560
800
16,0/0,8/16,8
CH64
0920_6
920
836
613
650
850
18,0/0,9/18,9
CH64
1030_6
1030
936
687
700
1000
19,0/1,0/20,0
CH64
1180_6
1180
1073
787
800
1100
21,0/1,1/22,1
CH64
1300_6
1300
1182
867
900
1200
27,0/1,4/28,4
CH64
1500_6
1500
1364
1000
1050
1400
32,0/1,6/33,6
CH64
1700_6
1700
1545
1)
1133
1)
1150
1550
NA
CH64
1850_6
1850
1682
1233
1250
1650
34,2/1,8/36,0
2*CH64
2120_6
2120
1927
1413
1450
1900
37,8/2,0/39,8
2*CH64
2340_6
2340
2127
1560
1600
2100
48,6/2,5/51,1
2*CH64
2700_6
2700
2455
1800
1850
2450
57,6/3,0/60,6
2*CH64
3100_6
3100
2818
1)
2066
1)
2150
2800
NA
2*CH64
Table 4-6. Power ratings and dimensions of NX Liquid-Cooled inverter unit, supply voltage 710—930VDC.
1)
Calculated
I
th
= Thermal maximum continuous RMS current. Dimensioning can be done according to this current if the proc-
ess does not require any overloadability or the process does not include any torque ripple
I
L
= Low overloadability current. 10% torque ripple. 10% exceeding can be continuous.
I
H
= High overloadability current. 50% torque ripple. 50% exceeding can be continuous.
All values with cos
ϕ
= 0,83 and efficiency = 97%
*) c = power loss into coolant; a = power loss into air; T = total power loss
All power losses obtained using max. supply voltage, I
th
and switching frequency of 3.6 kHz and ClosedLoop control
mode. All power losses are worst case losses.
If some other mains voltage is used, apply the formula
DC P = (Un/1.35)*
3
*In*cos
ϕ
*eff% to calculate the NX
Liquid-Cooled drive output power.
The voltage classes for the inverter units used in the tables above have been defined as follows:
Input 710VDC
= Rectified 525VAC supply
Input 930VDC
= Rectified 690VAC supply
The enclosure class of all inverter units is IP00.
If the motor is continuously (besides start and stop ramps) run at frequencies below 5 Hz, pay attention to the drive dimension-
ing for low frequencies, i.e. maximum I
H
= 0.66*I
th
or choose drive according to I
H
. It is recommended to check the rating with
your distributor or Vacon.
Drive overrating may also be necessary if the process requires high starting torque.