Block Search; Transformations; Compensations - Siemens SINUMERIK 840D sl Function Manual

TE7: Continue machining at the contour (retrace support) - 840D sl only
19.9 Boundary conditions
19.9.2.4

Block search

Block search with calculation
RESU is subject to the following constraints in the context of the "block search with calculation
(on contour/at end of block") standard function:
● The last block of the RESU part program command CC_PREPRE(x) run during the block
search is effective in the target block.
● The retraceable contour range starts with the REPOS approach block.
Block search without calculation
RESU part program commands CC_PREPRE(x) haveno effect in the "block searches without
calculation" function.
19.9.2.5

Transformations

RESU can also be used for active kinematic transformation (e.g. 5-axis transformation) subject
to restrictions, as the traversing movements of the two geometry axes of the RESU working
plane are recorded in the basic coordinate system (BCS) and therefore before the
transformation (see also Section "TE4: Handling transformation package - 840D sl only
(Page 635)").
Transformation changeover
While RESU is active, no transformation changes are permitted to take place and
transformation must not be activated/deactivated.
The RESU activity:
● Starts:
– with the part program command CC_PREPRE(1)
● Ends with:
– the program end
– with the part program command CC_PREPRE(-1)
References
A full description of the transformations is available in:
Function Manual, Extended Functions; Kinematic Transformation (M1)
19.9.2.6

Compensations

RESU can be used in interaction with compensations, because the traversing movements of
the two geometry axes of the RESU working plane is recorded in the basic coordinate system
(BCS) and therefore before the compensation.
726
or
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions