HEIDENHAIN TNC 426 (280 476) - Manual (Page 364)

HEIDENHAIN TNC 426, TNC 430 337
8.9 Special Cy
cles
8.9 Special Cycles
DWELL TIME (Cycle 9)
This causes the execution of the next block within a running program
to be delayed by the programmed dwell time. A dwell time can be
used for such purposes as chip breaking.
Effect
Cycle 9 becomes effective as soon as it is defined in the program.
Modal conditions such as spindle rotation are not affected.
7 7 7 7 Dwell time in seconds : Enter the dwell time in
seconds
Input range 0 to 3600 s (1 hour) in 0.001 s steps
PROGRAM CALL (Cycle 12)
Routines that you have programmed (such as special drilling cycles or
geometrical modules) can be written as main programs and then
called like fixed cycles.
7 7 7 7 Program name : Enter the name of the program you
want to call and, if necessary, the directory it is
located in.
Call the program with
n
CYCL CALL (separate block) or
n M99 (blockwise) or
n M89 (executed after every positioning block)
Example: NC blocks
89 CYCL DEF 9.0 DWELL TIME
90 CYCL DEF 9.1 DWELL 1.5
Example: NC blocks
55 CYCL DEF 12.0 PGM CALL
56 CYCL DEF 12.1 PGM TNC:\KLAR35\FK1\50.H
57 L X+20 Y+50 FMAX M99
0 BEGIN PGM
LOT31 MM 7 CYCL DEF 12.0
PGM CALL
8 CYCL DEF 12.1
LOT31
9 ... M99
END PGM LOT31
Before programming, note the following:
If the program you are defining to be a cycle is located in
the same directory as the program you are calling it from,
you need only to enter the program name.
If the program you are defining to be a cycle is not located
in the same directory as the program you are calling it
from, you must enter the complete path (for example
TNC:\KLAR35\FK1\50.H.
If you want to define an ISO program to be a cycle, enter
the file type .I behind the program name.