HEIDENHAIN TNC 335 Technical Manual - Manual (Page 196)

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TNC 360 4 Spindle 4-99
4.4 Tapping
There are two tapping cycles available in the control:
– tapping with floating tap holder and
– tapping without floating tap holder.
Tapping with floating tap holder is possible for both analog and coded spindle-speed output.
Tapping without floating tap holder is only possible for analog spindle-speed output.
The tapping cycle is defined in the NC program and can be called with CYCL CALL (M03). Tapping is
adjusted to the dynamic behavior of the machine by machine parameters.
4.4.1 Tapping with floating tap holder for analog spindle-speed
output
The following diagram shows the sequence of events in the cycle.
Acknow-
ledgement
of M code
Dwell time from
CYCL DEF 2.3
0
F
0
S
M03
M05
M04
M2048
End of
cycle
MP7120.0
MP7120.2
MP3410.0
MP3410.2
MP3410.0
MP3410.2
30 ms
(due to
software)
Cycle
start