
B–63172EN/01
19. AUTOMATIC OPERATION
NC FUNCTION
113
When tapping is stopped, either as a result of an emergency stop or a reset,
the tap may cut into the workpiece. The tap can subsequently be drawn
out by using a PMC signal. This function automatically stores
information relating to the tapping executed most recently. When a tap
retraction signal is input, only drawn out of the tapping cycle is executed,
based on the stored information. The tap is pulled toward the R point.
Initial point
R point
Z point
Center of
tapping
Retract
completion
point
When rigid tapping is stopped, either by an emergency stop or by a reset,
the tap may cut into the workpiece. The tap can subsequently be drawn
out by using a PMC signal. This function automatically stores
information relating to the tapping executed most recently. When a tap
return signal is input, only the rigid tapping cycle return operation is
executed, based on the stored information. The tap is pulled toward the
R point. When a return value is set in a corresponding parameter, the
pulling distance can be increased by .
L L
α
α
Initial point
2nd return
completion
point
1st return
completion
point
R point
Return
completion
point
Center of
tapping
Z point (α = 0) (when α is set)
19.7
RETRACTION FOR
TAPPING
19.8
RIGID TAPPING
RETURN