Motor Operating Mode
Parameter manual
b maXX
BM5800
Document No.: 5.16029.03
Baumüller Nürnberg GmbH
674
3.9
163.1
Flux estimator gain
Gain of motor model flux estimator. Higher values favor smooth low speed operation. Low
values give better performance at higher speeds.
167.1
Catch enable
The Catch on Fly is active for the next pulse enable, if this parameter is set to 1.
167.2
Catch flux estimator gain
Proportional gain of the motor model flux estimator while catch operation is active.
167.3
Catch demagnetization time
For motors with a high rotor time constant, this parameter can be used to force a delay
between pulse disable and subsequent pulse enable. While the catch operation is active,
there might occur a short term regenerative operation of the motor due not known rotor
position. If the delay between pulse disable and pulse enable is short compared to the
rotor time constant and the rotor speed is high, the maximum DC link voltage might be
exceeded if a AMRU is not present. In this case parameter
Z
167.3
–
needs to be in-
creased respectively, to allow the flux to decay before a subsequent pulse enable. As a
reference value the double or triple rotor time constant
can be used.