Siemens SINUMERIK 828D Function Manual page 311

REPOS display Offset
Once the search target has been found, for each axis of the FXS-state prevailing on the machine through the
axis VDI-signals:
IS DB31, ... DBX62.4 ("Activate travel to fixed stop")
and
IS DB31, ... DBX62.5 ("Fixed stop reached")
displayed.
Example:
If the machine is at the fixed stop and the block search has reached a block after deselection of FXS , the new
target position is displayed via IS DB31, ... DBX62.5 ("Fixed stop reached") is displayed as REPOS offset.
FXS fully automatically in REPOS
With REPOS the functionality of FXS is repeated automatically and designated FXS-REPOS below. This
sequence is comparable to the program "fxsSeruproAsup.mpf." Every axis is taken into account and the torque
last programmed before the search target is applied.
The user can treat FXS separately in a SERUPRO-ASUP.
The following then applies:
Every FXS action executed in SERUPRO-ASUP automatically takes care of
$AA_FXS[X] == $VA_FXS[X].
This deactivates FXS-REPOS for axis X.
Deactivate FXS REPOS
FXS-REPOS is deactivated by:
• an FXS synchronous action which refers to REPOSA
Or
• $AA_FXS[X] == $VA_FXS[X] in SERUPRO_ASUP.
Note
A SERUPRO-ASUP without FXS handling or no SERUPRO-ASUP results in fully
automatic FXS-REPOS.
FXS-REPOS moves all path axes in a path grouping to the target position. Axes with and
without FXS treatment thus traverse together with the G code and feedrate valid at the
time the target block is processed. As a result, the fixed stop may be approached in rapid
traverse(G0) or higher velocity.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
CAUTION
F1: Travel to fixed stop
6.2 General functionality
311