HEIDENHAIN iTNC 530 (60642x-04) Cycle programming - Manual (Page 205)

HEIDENHAIN iTNC 530 205
7.
1
0
CONT
OUR TRAIN (Cy
c
le 25, DIN/ISO:
G125)
Please note while programming:
The algebraic sign for the cycle parameter DEPTH
determines the working direction. If you program
DEPTH=0, the cycle will not be executed.
When using Cycle 25 CONTOUR TRAIN, you can define only
one contour subprogram in Cycle 14 CONTOUR GEOMETRY.
The memory capacity for programming an SL cycle is
limited. You can program up to 4090 contour elements in
one SL cycle.
The TNC does not need Cycle 20 CONTOUR DATA in
conjunction with Cycle 25.
Do not use any approach or departure blocks APPR/DEP in
the contour subprogram.
Do not perform Q parameter calculations in the contour
subprogram.
Use the CONTOUR TRAIN DATA cycle to define the machining
behavior of Cycle 25 (siehe „CONTOUR TRAIN DATA
(Cycle 270, DIN/ISO: G270)” auf Seite 202).
Danger of collision!
To avoid collisions,
 Do not program positions in incremental dimensions
immediately after Cycle 25 since they are referenced to
the position of the tool at the end of the cycle.
 Move the tool to defined (absolute) positions in all
principal axes, since the position of the tool at the end of
the cycle is not identical to the position of the tool at the
start of the cycle.
 If you program APPR and DEP blocks for contour approach
and departure, the TNC monitors whether the execution
of these blocks would damage the contour.
Enter in MP7441 bit 0 whether the TNC should output an
error message (bit 0=0) or not (bit 0=1) if spindle rotation
is not active when the cycle is called. The function also
needs to be adapted by your machine manufacturer.