Siemens Sinamics G110M Operating Instructions Manual page 277

Efficiency optimization, method 1
Figure 6-66
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 inverter reduces the flux setpoint
linearly with the torque.
Figure 6-67
The reduced flux in the motor partial load range results in higher efficiency.
Parameter
p1570
p1580
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 09/2017, FW V4.7.9, A5E31298649B AH
Reduce the flux setpoint in the partial load range of the motor
Qualitative result of efficiency optimization, method 1
Description
Flux setpoint (factory setting: 100%)
Efficiency optimization (factory setting depends on the inverter)
0% Efficiency optimization is deactivated.
100% In no-load operation, the inverter reduces the flux setpoint to 50% of the
rated motor flux.
Advanced commissioning
6.25 Efficiency optimization
277