Functions, monitoring and protective functions
9.3 Drive functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
515
9.3.2.3
Advanced efficiency optimization (method 2)
The advanced efficiency optimization generally achieves a better efficiency than the basic
efficiency optimization. With this technique, the actual motor operating point is determined as
a function of the efficiency and flux - and the flux is set to achieve the optimum efficiency.
Depending on the motor operating point, the inverter either decreases or increases the flux
in partial load operation of the motor.
Advanced efficiency optimization with flux
reduction
Advanced efficiency optimization with flux
reduction
The advanced efficiency optimization is deactivated in the factory setting.
To activate advanced efficiency optimization, set p1401.14 = 1.
9.3.2.4
Function diagrams, parameters
Function diagrams
FP 6722
Field weakening characteristic, Id setpoint (ASM, p0300 = 1)
FP 6723
Field weakening controller, flux controller for induction motor (p0300 = 1)
Parameters
•
r0077
Current setpoints, torque-generating
•
r0331
Motor magnetizing current/short-circuit current (actual)
•
p1401
Flux control configuration
•
p1570
Flux setpoint
•
p1580
Efficiency optimization
•
p1582
Flux setpoint smoothing time
Summary of Contents for SINAMICS S150 NEMA
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