Configuration
Parameter manual b maXX BM5800
Document No.: 5.16029.03 Baumüller Nürnberg GmbH
192
of 814
3.4
speed or position control) is active. The current amplitude in Z52.12– must be specified,
wring to the parameter Z19.17–, to do this. Usual are 10% of the nominal current of the
motor. Plausible scenarios are listed in the following:
– Motor and/or load inertia are not known
n The operating mode current control with a current set value (Z18.50–) of 0 A for
a rough presetting of the Ks factor
– Inertias are known approximately or were measured in the operation current control,
already
n Motor is freely movable
m Execute Ks-measurement in speed or position control by a low speed
(<
100 U/min)
n Motor has a limited travel path or a measurement at a specific position
m If the travel path is limited or if the Ks measurement is to be executed at a spe-
cific position, the measurement in position control can be executed with an ad-
ditional periodical angle offset. This cyclical angle offset can be set via the
parameter
Z52.18–. Hereby, accordant to the required additional movement
between 5 and 20 degrees would be provided.
In general, can be said that an exact measurement has to be carried out during move-
ment, preferably, because otherwise the measurement is affected by friction.
Ks measurement with control loop analysis
The third method of the Ks measuring is appropriate for oscillatory systems and is de-
scribed in detail in the chapter ZControl loop analysis– on page 198.
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