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3.1.4.
Drive selection
Drive selection depends on its rated power and its mode selection which leads to the
maximal current duration.
Please refer to the drive technical documentation for any further
information and to select the best motor and drive association.
AC890 PARKER drive example:
The rated current provided by the AC890 drive depends on its rated power and its
mode selection. "Vector mode" is used for induction motors while "Servo mode" is used
for brushless AC motors. With NK motors the power is usually < 37 kW, the rated
current corresponds to 100 %.
Power of Drive AC890 [kW]
Mode
Overload capability [%]
Illustration:
25
20
200% during 4 s
15
10
5
0
0
500
100% permanent
1000
1500
16 - PVD 3664_GB_NK-November 2016.Docx
< 37 kW
Vector mode
150 % during 60 s
2000
2500
3000
Servo mode
200 % during 4 s
Speed [rpm]
3500
4000
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