Siemens SINAMICS G110M - Page 340

E󹪟ciency optimization, method 2
Generally, energy e󹪟ciency optimization method 2 achieves a better e󹪟ciency than method 1.
We recommend that you set method 2.
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Figure 8-78 Determining the optimum 󹪞ux from the motor thermal model
Based on its thermal motor model, the converter continually determines - for the actual
operating point of the motor - the interdependency between e󹪟ciency and 󹪞ux. The converter
then sets the 󹪞ux to achieve the optimum e󹪟ciency.
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Figure 8-79 Qualitative result of e󹪟ciency optimization, method 2
Depending on the motor operating point, the converter either decreases or increases the 󹪞ux in
partial load operation of the motor.
E󹪟ciency optimization, method 1
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Figure 8-80 Reduce the 󹪞ux setpoint in the partial load range of the motor
Advanced commissioning
8.28 E󹪟ciency optimization
Distributed converter for SIMOGEAR geared motors
338 Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL