NORD Drivesystems BU0180 - Manual (Page 173)

9 Additional Information
BU 0180 GB-0914 Pre-series version 173
b) 400 V frequency inverter
The motor used for 50 Hz operation can be operated up to its rated point 50 Hz/400 V with the nominal
torque. In spite of this, operation above 50 Hz is possible, however the output torque reduces in a non-linear
manner (see following diagram). Above the rated point, the motor enters its field weakening range, as the
voltage cannot be raised over 400 V when the frequency is increased above 50 Hz. Because of the mains
voltage, maximum 400 V are available.
The following data refer to a 230/400 V motor winding. They apply for IE1 or IE2 motors. It should be noted
that these details may deviate slightly, as motors are subject to certain manufacturing tolerances. It is
recommended that the resistance of the connected motor is measured by the frequency inverter (P208 / P220).
Frequency inverter type
Parameterisation data of frequency inverter
F
N
[Hz]
n
N
[min -1 ]
I
N
[A] U
N
[V] P
N
[kW] cos

Circuit
R
St
[

]
IE1 Motors
SK…71S/4 SK 1x0E-250-340-B 50 1365 0.75 400 0.25 0.79 Star 39.90
SK…71L/4 SK 1x0E-370-340-B 50 1380 1.09 400 0.37 0.71 Star 22.85
SK…80S/4 SK 1x0E-550-340-B 50 1385 1.51 400 0.55 0.75 Star 15.79
SK…80L/4 SK 1x0E-750-340-B 50 1395 2.03 400 0.75 0.75 Star 10.49
SK…90S/4 SK 1x0E-111-340-B 50 1410 2.76 400 1.1 0.76 Star 6.41
SK…90L/4 SK 1x0E-151-340-B 50 1390 3.53 400 1.5 0.78 Star 3.99
SK…100L/4 SK 1x0E-221-340-B 50 1415 5.00 400 2.2 0.78 Star 2.78
IE2 Motor
SK…80SH/4 SK 1x0E-550-340-B 50 1415 1.38 400 0.55 0.70 Star 9.34
SK…80LH/4 SK 1x0E-750-340-B 50 1410 1.80 400 0.75 0.75 Star 6.30
SK…90SH/4 SK 1x0E-111-340-B 50 1430 2.46 400 1.1 0.80 Star 4.96
SK…90LH/4 SK 1x0E-151-340-B 50 1420 3.38 400 1.5 0.79 Star 3.27
SK…100LH/4 SK 1x0E-221-340-B 50 1445 4.76 400 2.2 0.79 Star 1.73
Frequency inverter type
Performance data at rated point*
P
B
[kW] n
B
[minP
-1P
] M
B
[Nm]
SK…71S/4 SK 1x0E-250-340-B 0.25 1380 1.73
SK…71L/4 SK 1x0E-370-340-B 0.37 1380 2.56
SK…80S(H)/4 SK 1x0E-550-340-B 0.55 1375 (1420) 3.82 (3.73)
SK…80L(H)/4 SK 1x0E-750-340-B 0.75 1375 (1415) 5.21 (5.06)
SK…90S(H)/4 SK 1x0E-111-340-B 1.1 1395 (1435) 7.53 (7.32)
SK…90L(H)/4 SK 1x0E-151-340-B 1.5 1395 (1415) 10.30 (10.10)
SK…100L(H)/4 SK 1x0E-221-340-B 2.2 1440 (1445) 14.60 (14.50)
* Values in brackets apply for IE2 motors