HEIDENHAIN iTNC 530 (60642x-04) Cycle programming - Manual (Page 111)

HEIDENHAIN iTNC 530 111
4.4 T
A
PPING WITH CHIP BREAK
ING (Cy
c
le
209, DIN/ISO:
G209)
Please note while programming:
Machine and TNC must be specially prepared by the
machine tool builder for use of this cycle.
This cycle is effective only for machines with servo-
controlled spindle.
Program a positioning block for the starting point (hole
center) in the working plane with radius compensation R0.
The algebraic sign for the parameter thread depth
determines the working direction.
The TNC calculates the feed rate from the spindle speed.
If the spindle speed override is used during tapping, the
feed rate is automatically adjusted.
The feed-rate override knob is disabled.
If you defined an rpm factor for fast retraction in cycle
parameter Q403, the TNC limits the speed to the maximum
speed of the active gear range.
At the end of the cycle the spindle comes to a stop. Before
the next operation, restart the spindle with M3 (or M4).
If you enter the thread pitch of the tap in the PITCH column
of the tool table, the TNC compares the thread pitch from
the tool table with the thread pitch defined in the cycle.
The TNC displays an error message if the values do not
match.
Danger of collision!
Enter in MP7441 bit 2 whether the TNC should output an
error message (bit 2=1) or not (bit 2=0) if a positive depth
is entered.
Keep in mind that the TNC reverses the calculation for pre-
positioning when a positive depth is entered. This
means that the tool moves at rapid traverse in the tool axis
to set-up clearance below the workpiece surface!
Enter in MP7441 bit 0 whether the TNC should output an
error message (bit 0=0) or not (bit 0=1) if spindle rotation
is not active when the cycle is called. The function also
needs to be adapted by your machine manufacturer.