Specification Of The Motor - Siemens SINAMICS S120 Configuration Manual

Configuration
5.3 Dimensioning
5.3.3

3. Specification of the motor

Through variation, it is now possible to identify a motor which meets the requirements of
the application.
In a second step, a check is made as to whether the thermal limits are maintained. To do
this, the motor current at the base load must be calculated. When configuring according to
duty cycle with constant ON period with overload, the overload current must be calculated
relative to the required overload torque.
The calculation depends on the type of motor used (synchronous motor, induction motor)
and the particular application (duty cycle with constant ON period, free duty cycle).
Finally, the other motor features must be defined by configuring the motor options.
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Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
Synchronous Motors 1FK7