Siemens Sinamics S110 Function Manual page 227

Multiple drive data sets
Position tracking of the load gear can be activated in multiple drive data sets.
● The load gear is DDS-dependent.
● Load gear position tracking is computed only for the active drive data set and is EDS-
● The position tracking memory is only available once for each EDS.
● For position tracking to be continued in different drive data sets under the same
● When the switchover between drive data sets involves a change in gear unit, the position
● For identical mechanical relationships and the same encoder data set, DDS changeover
Restrictions
● Position tracking cannot be activated for an encoder data set which is used in different
● If an encoder data set is used in one DDS as a motor encoder with position tracking and
● If position tracking is reset in one drive data set, it is also reset in all other drive data sets
● An axis in an inactive drive data set may move by a maximum of half an encoder range
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
dependent.
mechanical conditions and with the same encoder data sets, it must be activated
explicitly in all the relevant drive data sets. Possible applications of drive data set
switchover with continuation of position tracking:
– Star/delta switchover
– Different ramp-up times / controller settings
tracking function starts from the beginning again, i.e. it behaves on switchover as if a
POWER ON had occurred.
has no effect on the calibration status and reference point status.
drive data sets as encoder1 for different gears. If an attempt is still made to activate
position tracking, fault "F07555 (Drive encoder: Configuration position tracking" will be
displayed with fault value 03 hex.
A check is generally performed to determine whether the load gear is the same in all DDS
in which the relevant encoder data set is used.
In this case, the settings in each of the load gear parameters p2504[D], p2505[D],
p2720[D], p2721[D] and p2722[D] must be identical.
in another DDS as an external encoder, the position tracking starts from the beginning
again, i.e. it behaves in the same way as it would do after a POWER ON.
which contain the relevant encoder data set.
(see p2722: tolerance window).
Drive functions
7.3 Function modules
225