HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 87)

TNC 425/TNC 415 B/TNC 407 4-28
4 Programming
Y
X
Z
F
S S
ENT
1 0 e.g. 0
4.7 Entering Tool-Related Data
Besides the tool data and compensation, you must
also enter the following information:
• Feed rate F
• Spindle speed S
• Miscellaneous function M
Feed rate F
The feed rate is the speed (in mm/min or inch/min) at which the tool
center moves.
Input range:
F = 0 to 300,000 mm/min or 11,811 ipm.
The maximum feed rate is set individually for each axis in machine
parameters.
To set the feed rate:
Answer the following dialog question in the positioning block:
FEED RATE F = ? / F MAX = ENT
Enter the feed rate, for example F = 100 mm/min.
The question does not always appear with F MAX.
Rapid traverse
If you wish to program rapid traverse, press ENT for FMAX. If you know
the maximum traverse speed, you can also program it directly. FMAX is
effective only for the block in which it is programmed.
Duration of feed rate F
A feed rate which is entered as a numerical value remains in effect until a
block with another feed rate is reached.
If the new feed rate is FMAX, the feed rate returns to the previous feed
rate after the block is executed.
Changing the feed rate F
You can vary the feed rate by turning the knob for feed rate override on
the TNC keyboard (see page 2-6).
Fig. 4.20: Feed rate F and spindle speed S of the tool