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8.8 Special Cycles
DWELL TIME (Cycle 9)
This cycle 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.
Dwell time in seconds: Enter the dwell time in
seconds
Input range 0 to 3600 s (1 hour) in 0.001 s steps
Example NC blocks
89
Y L DEF 9.0 DWELL TIME
90
Y L DEF 9.1 DWELL 1.5
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.
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 \CONV35\FK1\50.H).
If you want to define an ISO program to be a cycle, enter
the file type .I behind the program name.
Program name: Enter the name of the program you
want to call and, if necessary, the directory it is located
in.
The program is called with
CYCL CALL (separate block) or
M99 (blockwise) or
M89 (modally)
HEIDENHAIN TNC 426 B, TNC 430
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7 CYCL DEF 12.0
PGM CALL
8 CYCL DEF 12.1
LOT31
9 ... M99
Example: Program call
A callable program 50 is to be called into a program
via a cycle call.
Example NC blocks
55
Y L DEF 12.0 PGM
56
Y L DEF 12.1 PGM \KLAR35\FK1\50.H
57
L X+20 Y+50 FMAX M99
0 BEGIN PGM
LOT31 MM
END PGM LOT31
ALL
235
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