HEIDENHAIN TNC 407 (280 580) ISO Programming - Manual (Page 273)

8-53
8 Cycles
TNC 426/TNC 425/TNC 415 B/TNC 407
8.6 Other Cycles
DWELL TIME (G04)
Application
This cycle causes the execution of the next block within a running pro-
gram to be delayed by the programmed dwell time.
The dwell time cycle can be used for such purposes as chip breaking.
Activation
This cycle becomes effective as soon as it is defined. Modal conditions
such as spindle rotation are not affected.
Input data
The dwell time is entered in seconds after G04 with F.
Input range: 0 to 30 000 sec. (approx. 8.3 hours) in increments of
0.001 sec.
Resulting NC block: N135 G04 F3*
PROGRAM CALL (G39)
Application and activation
Routines that are programmed by the user (such as special drilling cycles,
curve milling or geometrical modules) can be written as main programs
and then called like fixed cycles.
Input data
Enter the file name of the program to be called.
The program is called with
• G79 (separate block) or
• M99 (blockwise) or
• M89 (modally).
Example: Program call
A callable program (program 50) is to be called into a program via a cycle
call.
Part program
G39 P01 50 ................................................................. “Program 50 is a cycle”
G00 G40 X+20 Y+50 M99 .......................................... Call program 50
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