Vacon NX User Manual

4
vacon • 26 Technical data
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
I
th
= Thermal maximum continuous RMS current. Dimensioning can be done according to this current if the
process does not require any overloadability or the process does not include any load variation.
I
L
= Low overloadability current. Allows +10% load variation. 10% exceeding can be continuous.
I
H
= High overloadability current. Allows +50% load variation. 50% exceeding can be continuous.
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
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
P = x Un x In x cos ϕ x eff% to calculate the VACON
®
NX Liquid-Cooled drive output power.
The enclosure class for all VACON
®
NX Liquid-Cooled AC drives 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
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.
0416_6 416 378 277 250 355 9.1/0.5/9.6 CH72
0460_6 460 418 307 315 400 10.0/0.5/10.5 CH72
0502_6 502 456 335 355 450 11.2/0.6/11.8 CH72
0820_6 820 745 547 600 750 17.3/1.0/18.3 CH74
0920_6 920 836 613 650 850 19.4/1.1/20.5 CH74
1030_6 1030 936 687 750 950 21.6/1.2/22.8 CH74
1180_6 1180 1073 787 800 1100 25.0/1.3/26.3 CH74
1300_6 1300 1182 867 950 1200 27.3/1.5/28.8 CH74
1500_6 1500 1364 1000 1050 1400 32.1/1.7/33.8 CH74
1700_6 1700 1545 1133 1150 1550 36.5/1.9/38.4 Ch74
1850_6 1850 1682 1233 1250 1650 39.0/2.0/41.0 2*CH74
2120_6 2120 1927 1413 1450 1900 44.9/2.4/47.3 2*CH74
2340_6 2340 2127 1560 1600 2100 49.2/2.6/51.8 2*CH74
2700_6 2700 2455 1800 1850 2450 57.7/3.1/60.8 2*CH74
3100_6 3100 2818 2067 2150 2800 65.7/3.4/69.1 2*CH74
Table 10. Internal brake chopper unit (BCU) ratings, braking voltage 840—1100 VDC
Internal brake chopper ratings, braking voltage 840-1100 Vdc
AC drive Type
Loadability Braking capacity at 840 Vdc Braking capacity at 1100 Vdc
Chassis
Rated min
resistance
[Ω]
Rated cont. brak-
ing power
[kW]
BCU rated cont.
braking current,
I
br
[A]
Rated cont. brak-
ing power
[kW]
BCU rated cont.
braking current,
I
br
[A]
NX_325 6
1)
2.8 252 300 432 392 Ch72
NX_385 6
1)
2.8 252 300 432 392 Ch72
NX_416 6
1)
2.8 252 300 432 392 Ch72
Table 9. Power ratings of VACON
®
NX Liquid-Cooled AC drive (12-pulse),
supply voltage 525—690 VAC
Mains voltage 525-690 VAC, 50/60 Hz, 3~, 12-pulse drives
3

Vacon NX Specifications

General

Product Type	AC Drive
Control Method	Scalar Control
Enclosure	IP00, IP21
Communication	Ethernet
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Ambient Temperature Range	-10°C to +50°C (with derating above +40°C)
Cooling Method	Air-cooled, Liquid-cooled