Siemens SINUMERIK 840D sl Function Manual page 499

The user starts the individual axes by selecting the appropriate feedrate enables. The target
block motion is then executed.
Repositioning positioning axes in the repositioning block
Positioning axes are not repositioned in the residual block but rather in the repositioning block,
and their effect is not limited to the block search via program test on SERUPRO approach.
MD11470 $MN_REPOS_MODE_MASK
Bit 3=1
Bit 4=1
Note
If neither bit 3 nor bit 4 is set, "non-path axes" are repositioned in the residual block in this
phase.
Prefer or ignore REPOS
Further REPOS adaptations can be made by setting the bits in:
MD11470 $MN_REPOS_MODE_MASK
Bit 5 = 1
Bit 6 = 1
Bit 7 = 1
Delayed approach of axis with REPOS offset
With the axial level-triggered NC/PLC interface signal axis/spindle (PLC→NCK):
DB31, ... DBX10.0 (REPOSDELAY)
the REPOS offset for this axis is traversed only
after the next time it is programmed with the edge of IS:
DB21, ... DBX31.4 (REPOSMODEEDGE).
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
for block search via program test (SERUPRO)
for each REPOS
Modified feedrates and spindle speeds are valid immediately in the residual
block and are given priority. This behavior relates to every REPOS operation.
Neutral axes and positioning spindles are repositioned after SERUPRO.
Neutral axes that are not allowed to be further repositioned must receive inter‐
face signal:
DB31, ... DBX10.0 (REPOSDELAY)
This cancels the REPOS motion.
The level of interface signal:
DB31, ... DBX10.0 (REPOSDELAY)
is read if REPOSA is interpreted.
Axes, which are neither geometry nor orientation axes, are then excluded by
REPOS and are not moved.
Remark: REPOSDELAY is changed from edge to level evaluation.
9.8 Block search Type 5 (SERUPRO)
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