Siemens SINAMICS S 1PH7 - Motor Selection Based on Power-Speed and Torque-Speed Diagrams

Configuration
2.3 Selecting and dimensioning induction motors
1PH7 induction motors (Machine tools)
Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
47
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3
1
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Figure 2-3 Motor selection based on power-speed and torque-speed diagrams
Example of the calculation of n
N
A specific power of P
max
= 8 kW is required at n
max
= 5250 rpm.
The field weakening range should be 1 : 3.5.
Calculation of the required rated speed n
N
: 5250 / 3.5 rpm = 1500 rpm.