HEIDENHAIN TNC 620 User Manual page 3

Controls and displays
Managing NC programs and files,
control functions
Key Function
Select or delete NC programs or
files, external data transfer
Define program call, select datum
and point tables
Select MOD functions
Display help text for NC error
messages, call TNCguide
Display all current error messages
Show calculator
Show special functions
Currently not assigned
Navigation keys
Key Function
Position the cursor
Go directly to NC blocks, cycles, and
parameter functions
Navigate to the beginning of a
program or table
Navigate to the end of the program
or table row
Navigate up one page
Navigate down one page
Select the next tab in forms
Up/down one dialog box or button
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
Cycles, subprograms and
program section repeats
Key Function
Define touch probe cycles
Define and call cycles
Enter and call subprograms and
program section repeats
Enter program stop in an
NC program
Programming path contours
Key Function
Contour approach and departure
FK free contour programming
Straight line
Circle center/pole for polar coordi-
nates
Circular arc with center
Circular arc with radius
Circular arc with tangential transition
Chamfer/rounding arc
Potentiometer for feed rate
and spindle speed
Feed rate Spindle speed
3