HEIDENHAIN TNC 320 (340 551-01) - Manual (Page 96)

96 5 Programming: Tools
5.1 Ent
er
ing T
o
ol-Relat
ed D
a
ta
5.1 Entering Tool-Related Data
Feed rate F
The feed rate F is the speed (in millimeters per minute or inches per
minute) at which the tool center moves. The maximum feed rates can
be different for each machine axis, and are set in machine parameters.
Input
You can enter the feed rate in the TOOL CALL block and in every
positioning block (see “Creating the program blocks with the path
function keys” on page 117).
Rapid traverse
If you wish to program rapid traverse, enter F MAX. To enter F MAX,
press the ENT key or the F MAX soft key when the dialog question
FEED RATE F = ?
appears on the TNC screen.
Duration of effect
A feed rate entered as a numerical value remains in effect until a block
with a different feed rate is reached. F MAX is only effective in the block
in which it is programmed. After the block with F MAX is executed, the
feed rate will return to the last feed rate entered as a numerical value.
Changing during program run
You can adjust the feed rate during program run with the feed-rate
override knob F.
To move your machine at rapid traverse, you can also
program the corresponding numerical value, e.g. F30000.
Unlike FMAX, this rapid traverse remains in effect not only
in the individual block but in all blocks until you program a
new feed rate.
X
Y
Z
S
S
F