Siemens SINAMICS G120C DP

The motor operates in partial load mode between no-load operation and the rated motor
torque. Depending on p1580, in the partial load range, the converter reduces the 󹪞ux
setpoint linearly with the torque.
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Figure8-79 Qualitative result of e󹪟ciency optimization, method 1
The reduced 󹪞ux in the motor partial load range results in higher e󹪟ciency.
Parameters
Table 8-72 E󹪟ciency optimization, method 2
Number Name Factory setting
p1401[D] Flux control con󹪝guration 0000 0000 0000
0110 bin
p1570[D] CO: Flux setpoint 100%
p3315[D] E󹪟ciency optimization 2 minimum 󹪞ux limit value 50%
p3316[D] E󹪟ciency optimization 2 maximum 󹪞ux limit value 110%
Table 8-73 E󹪟ciency optimization, method 1
Number Name Factory setting
p1570[D] CO: Flux setpoint 100%
p1580[D] E󹪟ciency optimization 80%
Advanced commissioning
8.31E󹪟ciency optimization
SINAMICS G120C Converters
354 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK