Efficiency Optimization, Method 1; Reduce The Flux Setpoint In The Partial Load Range Of The Motor; Qualitative Result Of Efficiency Optimization, Method 1 - Siemens SINAMICS G120XA Operating Instructions Manual

Efficiency optimization, method 1

Figure 6-82
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 flux setpoint linearly
with the torque.
Figure 6-83
The reduced flux in the motor partial load range results in higher efficiency.
Parameters
The converter calculates the parameters for the thermal motor model based on the motor data
that has been set – and the motor data identification.
Table 6-73
Number
p1401[D]
p1570[D]
p3315[D]
p3316[D]
Table 6-74
Number
p1570[D]
p1580[D]
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB

Reduce the flux setpoint in the partial load range of the motor

Qualitative result of efficiency optimization, method 1

Efficiency optimization, method 2
Name
Flux control configuration
CO: Flux setpoint
Efficiency optimization 2 minimum flux limit value
Efficiency optimization 2 maximum flux limit value
Efficiency optimization, method 1
Name
CO: Flux setpoint
Efficiency optimization
Advanced commissioning
6.9 Energy saving
Factory setting
0000 0000 0000
0110 bin
100%
50%
110 %
Factory setting
100%
80%
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