Repositioning With Controlled Repos - Siemens SINUMERIK 840D sl Function Manual

REPOS offset with synchronized synchronous spindle coupling
When repositioning with SERUPRO, processing continues at the point of interruption. If a
synchronous spindle coupling was already synchronized, there is no REPOS offset of the
following spindle and no synchronization path is present. The synchronization signals remain
set.
Search target found on block change
The axial NC/PLC interface signal:
DB31, ... DBX76.4 (path axis)
is 1 if the axis is part of the path grouping.
This signal shows the status of the current block to be executed during block change.
Subsequent status changes are ignored.
If the SERUPRO operation is ended with "Search target found",
DB31, ... DBX76.4 (path axis) refers to the target block.
9.8.2.1

Repositioning with controlled REPOS

Once SERUPRO has been used to find the target block, prior to continuing the interrupted
program, a REPOS operation for repositioning the contour is performed. The REPOS mode
"Reposition at the block start point of the target block" (RMBBL) is active by default. The
REPOS mode can be defined user-specific via the NC/PLC interface:
DB21, ... DBX31.0 - .2 (REPOS mode A, B, C) (Page 1609)
REPOS mode RMNBL repositioning to the next point on the path
in the RMNBL REPOS mode, positioning is made for the REPOS start position from the next
nearest contour point.
Example
The program is interrupted at any point in the block N110. The axes were then traversed to
position (A), e.g. manually. Once SERUPRO has found target block N110, the REPOS
operation with REPOS mode RMNBL is performed. With regard to the REPOS start position
(A), point (B) is the next nearest point of the contour. The REPOS operation is completed when
point (B) is reached. The programmed contour of the interrupted program is traversed again
starting at point (B).
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
9.8 Block search Type 5 (SERUPRO)
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