Siemens SINAMICS G220 - Page 563

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Figure14-158 Prede󹪝ned and variable quantities for motor e󹪟ciency
In partial load operation of the motor, e󹪟ciency optimization uses the thermal motor model
to continuously determine the dependency between e󹪟ciency and 󹪞ux, and from this it
calculates the optimum 󹪞ux.
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Figure14-159 Calculating the optimum 󹪞ux
E󹪟ciency optimization sets the optimum 󹪞ux in the motor.
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Figure14-160 Increasing e󹪟ciency by optimizing the 󹪞ux in the motor
Depending on the operating point of the motor, the 󹪞ux of the reduces or increases.
Parameters
The following list contains the parameters of the "E󹪟ciency optimization" function.
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 561