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Functions, monitoring and protective functions
9.3 Drive functions
9.3.2.2
Simple efficiency optimization (method 1)
For p1580 = 100%, the flux in the motor under no-load operating conditions is reduced to
half of the setpoint (reference) flux (p1570/2). As soon as a load is connected to the drive,
the setpoint (reference) flux increases linearly with the load and reaches the setpoint set in
p1570 at approx. r0077 = r0331 x p1570.
Figure 9-3
In the field-weakening range, the final value is reduced by the actual degree of field
weakening. The smoothing time (p1582) should be set to approx. 100 ms to 200 ms. Flux
differentiation (see also p1401.1) is automatically deactivated internally following
magnetization.
Figure 9-4
514
Efficiency optimization
Basic efficiency optimization
Operating Instructions, 12/2018, A5E36652151A
Enclosed Drives
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