HEIDENHAIN TNC 640 User Manual page 3

Managing programs and files,
control functions
Key Function
Select or delete programs and 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
Open the batch process manager
Navigation keys
Key Function
Position the cursor
Go directly to blocks, cycles and
parameter functions
Navigate to the program start or
table start
Navigate to the program end or end
of a table line
Navigate up one page
Navigate down one page
Select the next tab in forms
Up/down one dialog box or button
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
Cycles, subprograms and
program section repeats
Key Function
Define touch probe cycles
Define and call cycles
Enter and call labels for subpro-
gramming and program section
repeats
Enter program stop in a program
Programming path movements
Key Function
Approach/depart contour
FK free contour programming
Straight line
Circle center/pole for polar coordi-
nates
Circular arc with center
Circle with radius
Circular arc with tangential connec-
tion
Chamfer/rounding arc
Potentiometer for feed rate
and spindle speed
Feed rate Spindle speed
3