Operation Manual

HEIDENHAIN MANUALplus 620 123
4.1 Working with cycles
Help graphics
The functions and parameters of the Teach-in cycles are illustrated in
the graphic support window. These graphics usually show an external
machining operation.
The Circle key allows you to switch between the
help graphics for internal and external machining.
Elements used in the graphic support window:
Broken line: Rapid traverse path
Continuous line: Feed path
Dimension line with arrow head on one side: "Directional
dimension"—the algebraic sign defines the direction
Dimension line with arrow head on both sides: "Absolute
dimension"—the algebraic sign has no effect.
DIN macros
DIN macros (DIN cycles) are DIN subprograms (see "DIN cycle" on
page 356). You can integrate DIN macros in Teach-in programs. Make
sure that the DIN macros do not contain any zero point shifts.
Graphical test run (simulation)
Before executing a cycle, you can graphically test the contour details
and the machining sequence (see "Simulation mode of operation" on
page 468).
Danger of collision!
Teach-in programming: With DIN macros, the zero point
shift is reset at the end of the cycle. Therefore, do not use
any DIN macros with zero point shifts in Teach-in
programming.