Vacon NX User Manual

5
vacon • 70 Installation
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
5.4.1 Installation of input chokes
There are two types of input choke connection in VACON
®
NX Liquid-Cooled drives. The two smallest
sizes (CH31, CH32; up to 61 A) have terminal block connection whereas bigger sizes use busbar
connection. Examples of both connections and the choke dimensions below.
Figure 33. Example of input chokes for VACON
®
NX Liquid-Cooled. Sizes up to 62 A
Table 31. Input choke dimensioning, 12-pulse supply
AC drive types
(400—500 VAC)
AC drive types
(690 VAC)
Choke type
(2 chokes
needed)
Thermal
current
[A]
Nominal
inductance [0H]
A/B*
Calculated
loss [W]
0460…0520 0325…0502 CHK0261N6A0 261 139/187 460
0590…0730 0590…0750 CHK0400N6A0 400 90/120 610
0820…1030
0820…1030
1850
CHK0520N6A0 520 65/95 810
1150
2300
2470
1180…1300
2120…2340
CHK0650N6A0 650 51/71 890
1370
2950
1370
2700
CHK0750N6A0 750 45/61 970
1640
1500
3100
CHK0820N6A0 820 39/53 1020
2060
3710
1700 CHK1030N6A0 1030 30/41 1170
4140 - CHK1150N6A0 1150 26/36 1420
AC drive types written bold italic require two (2) chokes of the designated kind per unit
(totally 4).
*Inductances for different supply voltages; A = 400…480 Vac, B = 500…690 Vac.
See page 72.
W1
W2
H1 H2
D1
D2
S1
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11341_00

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