Technical data
vacon • 29
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
4
I
L
= Low overloadability current. 10% load variation. 10% exceeding can be continuous.
I
H
= High overloadability current. 50% load variation. 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 Closed Loop
control mode. All power losses are worst case losses.
If some other mains voltage is used, apply the formula DC P = (U
DC
/1.35)*
*In*cos
ϕ
*eff% to calculate the
VACON
®
NX Liquid-Cooled drive electrical output power.
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
H
= 0.66*I
th
or choose drive according to I
H
. It is
recommended to check the rating with your nearest distributor.
Drive overrating may also be necessary if the process requires high starting torque.
The voltage classes for the inverter units used in the tables above have been defined as follows:
Input 540 VDC = Rectified 400 VAC supply
Input 675 VDC = Rectified 500 VAC supply
The enclosure class of all inverter units is IP00.
4.2.2.2
VACON
®
NX Liquid-Cooled Inverter Unit – Mains voltage 640—1100 VDC
Table 12. Power ratings of VACON
®
NX Liquid-Cooled inverter unit, supply voltage 710—930 VDC
Mains voltage 640-1100 VDC
*)
Inverter
type
Drive output
Power loss
c/a/T
*)
[kW]
Chassis
Current
Motor output power
Thermal
I
th
[A]
Rated cont. I
L
[A]
Rated cont. I
H
[A]
Optimum
motor at I
th
(710VDC) [kW]
Optimum
motor at I
th
(930VDC) [kW]
0170_6
170
155
113
110
160
3.6/0.2/3.8
CH61
0208_6
208
189
139
132
200
4.3/0.3/4.6
CH61
0261_6
261
237
174
160
250
5.4/0.3/5.7
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
8.7/0.4/9.1
CH62
0502_6
502
456
335
355
450
9.8/0.5/10.3
CH62
0590_6
590
536
393
400
560
10.9/0.6/11.5
CH63
0650_6
650
591
433
450
600
12.4/0.7/13.1
CH63
0750_6
750
682
500
500
700
14.4/0.8/15.2
CH63
0820_6
820
745
547
560
800
15.4/0.8/16.2
CH64
0920_6
920
836
613
650
850
17.2/0.9/18.1
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
24.0/1.3/25.3
CH64
1500_6
1500
1364
1000
1050
1400
28.0/1.5/29.5
CH64
1700_6
1700
1545
1133
1150
1550
32.1/1.7/33.8
CH64
1850_6
1850
1682
1233
1250
1650
34.2/1.8/36.0
2*CH64
3
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