Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Functions, monitoring and protective functions
9.4 Extended functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
641
Several drive data sets
Position tracking of the load gear can be activated in multiple drive data sets.
● The load gear is DDS-dependent.
● Position tracking of the load gear is calculated only for the active drive data set and is
EDS-dependent.
● The position tracking memory is only available once for each EDS.
● If position tracking is to be continued in different drive data sets with the same mechanical
relationships and the same encoder data sets, it must be activated explicitly in all relevant
drive data sets. Possible applications for drive data set changeover with continued
position tracking:
–
Star/delta changeover
– Different ramp-up times / controller settings
● For a drive data set switchover, which involves a change in gear unit, the position tracking
function restarts, i.e. after switchover, the response is the same as if a POWER ON had
occurred.
● For identical mechanical relationships and the same encoder data set, a DDS switchover
has no effect on the calibration status and reference point status.
Restrictions
● If an encoder data set is used as encoder 1 in several drive data sets with different gears,
it is not possible to activate position tracking there. If an attempt is nevertheless made to
activate position tracking, fault F07555 (drive encoder: Configuration position tracking) is
output with fault value 03 hex.
A check is always performed to determine whether the load gear is the same in all DDS
in which the relevant encoder data set is used.
Load gear parameters p2504[D], p2505[D], p2720[D], p2721[D] as well as p2722[D] must
be identical in this case.
● If an encoder data set is used in one DDS as a motor encoder with position tracking and
in another DDS as an external encoder, then when a changeover is made, position
tracking is re-initialized, i.e. the response after switchover is the same as the response
after a POWER ON.
● If position tracking is reset in one drive data set, this affects all drive data sets in which
this encoder data set is used.
● The maximum permissible movement of an axis in an inactive drive data sets is half the
encoder range (see p2722: tolerance window).
The table below describes the changeover behavior on transition from one DDS to another.
A changeover is always executed by DDS0.