Limiting The Linear-Axis Feed Rate; Resetting Function Tcpm - HEIDENHAIN TNC 620 User Manual

Multiple-axis machining | Compensating the tool angle of inclination with FUNCTION TCPM (option 9)

Limiting the linear-axis feed rate

The optional input of F allows you to limit the feed rate of linear axes
for motions with a rotary-axis component.
Thus, you can avoid fast compensation movements, e.g. in case of
retraction movement at rapid traverse.
Make sure to select a value for the linear axis feed-rate
limit that is not too small because otherwise, large feed-
rate variations at the tool center point (TCP) might occur.
Feed-rate variations impair the surface quality.
If FUNCTION TCPM is active, the feed-rate limit will only
be effective for motions with a rotary-axis component,
not for entirely linear motions.
The linear axis feed-rate limit remains in effect until you program a
new value or reset FUNCTION TCPM.
Example
13 FUNCTION TCPM F TCP AXIS POS PATHCTRL AXIS
REFPNT CENTER-CENTER F1000

Resetting FUNCTION TCPM

FUNCTION RESET TCPM is to be used if you
want to purposely reset the function within an
NC program.
When you select a new NC program in the Program
run, single block or Program run, full sequence
operating modes, the control automatically resets the
TCPM function.
Example
...
25 FUNCTION RESET TCPM
...
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
The maximum feed rate for the linear axes compensation
motion is 1000 mm/min
Resetting FUNCTION TCPM
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