Siemens SINAMICS RAILCTRL Function Manual page 50

Commissioning
6.3 Setting the geometry data
Note
Depending on the grid division (p0407) and fine resolution (p0418) of the encoder, the
coordinates are limited to a 32-bit value (see faults F53175, F53176).
For this reason, you must set the coordinates individually for each segment for the measuring
range start (p30460) and primary section start (p30461) (local coordinates), see following
diagram.
Figure 6-1
Note
The value for the hysteresis set in p30466 must be greater than the deviation of the encoders
in the overlap range (including sensor noise). A hysteresis set too low can cause the following
effects in the overlap range:
● Fast switching backward and forward between states
● Simultaneous execution of both segment states
Both can cause jerky motion of the carrier.
Note
Observe for the master/slave coupling that the same direction is parameterized for all
segments in p1821. If necessary, you must correct the traversing direction by interchanging the
motor feeder cables (UVW).
48
Example coordinates and geometry data, with p30460 = 0 and p30461 = 10.
Function Manual, 09/2019, A5E38120767B
RAILCTRL