Description of the Software Modules and Parameters
Parameter manual b maXX BM5800
Document No.: 5.16029.03
673
of 814
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3.9.2.3 Parameter overview sensorless asynchronous motor
Functional block: FbMagn [160]
Functional block: FbSzl [161]
Functional block: FbFluxEstimatorOL [163]
Functional block: FbCatchOL [167]
3.9.2.4 Description of the sensorless asynchronous motor parameters
160.1 Magnetization time
Ramp on field current during magnetization. Actual magnetization time depends on how
the actual flux rises in the motor.
161.1 Minimum speed threshold OL
Speed reference below which speed estimation is suspended.
161.2 Minimum speed delay OL
Time which must elapse before speed estimation is suspended when speed is below the
threshold
Z161.1–.
Number Name Type Min Max Default Value Unit Factor
Read only
Storage
DS Support
Cyclic Write
Axis-independent
160.1 Magnetization time UDINT 0 5000 200 ms 1:1 X
161.1 Minimum speed thresh-
old OL
UDINT 0 1800 180 Grad/s 1:1 X X
161.2 Minimum speed delay
OL
UDINT 0 10000 1000 ms 1:1 X X
163.1 Flux estimator gain FLOAT 50.00 1000.00 250.00 1:1 X X
167.1 Catch enable UDINT 0 1 0 1:1 X
167.2 Catch flux estimator
gain
FLOAT 1.0 1000.00 25.00 1:1 X
167.3 Catch demagnetization
time
UINT 0 4000 0 ms 1:1 X
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