Technology Option F01 08.2012
6SE7087-6QX70 (Version AN) Siemens AG
9-158 Compendium Motion Control SIMOVERT MASTERDRIVES
With pure synchronization axes (electronic shaft/gearbox), the actual
value weighting factor (AVWF) can frequently remain in the factory
setting AVWF = 1.0, i.e. 1 LU = 1 position encoder increment.
The "Position sensing system for motor encoder" section includes an
example calculation for determining the AVWFactor.
9.8.8 Defining the maximum traversing velocity
Commissioning step:
Define the maximum traversing velocity (MD23, P205):
Enter the maximum traversing velocity, which you defined in Section 1,
in P205 [340.2] and machine data MD23 (P550.23 [804]) in the unit
[1000 LU/min]. MD23 should not be modified again unless absolutely
necessary, since this machine data is a normalization value for the
velocity setpoint output [817] and the acceleration ramps (MD41, MD42
and MD43) for the speed control modes "control" and "homing", and
must correspond to the reference speed P353.
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