Siemens SINAMICS S120 1PM6 Configuration Manual page 31

Figure 2-3
Example of the calculation of n
A specific power of P
The field weakening range should be 1 : 3.5.
Calculation of the required rated speed n
1PM6/1PM4 Hollow-Shaft Motors for Main Spindle Drives
Configuration Manual, PPMS, 04/2008, 6SN1197-0AD23-0BP0
Motor selection based on power-speed and torque-speed diagrams
N
= 8 kW is required at n
max
2.3 Selecting and dimensioning induction motors
= 5250 rpm.
max
: 5250 / 3.5 rpm = 1500 rpm.
N
Configuring
31