HEIDENHAIN TNC 620 (340 56x-02) Cycle programming - Manual (Page 260)

260 Cycles: Coordinate Transformations
1
1
.9 W
O
RKING PLANE (Cy
c
le 1
9
, DIN/ISO: G80, Sof
tw
a
re
Option 1)
Position the axis of rotation
Manual positioning of rotary axes
If the rotary axes are not positioned automatically in Cycle 19, you
must position them in a separate L block after the cycle definition.
If you use axis angles, you can define the axis values right in the L
block. If you use spatial angles, then use the Q parameters Q120
(A-axis value), Q121 (B-axis value) and Q122 (C-axis value), which
are described by Cycle 19.
Example NC blocks:
The machine tool builder determines whether Cycle 19
positions the axes of rotation automatically or whether
they must be positioned manually in the program. Refer to
your machine tool manual.
10 L Z+100 R0 FMAX
11 L X+25 Y+10 R0 FMAX
12 CYCL DEF 19.0 WORKING PLANE Define the spatial angle for calculation of the
compensation
13 CYCL DEF 19.1 A+0 B+45 C+0
14 L A+Q120 C+Q122 R0 F1000 Position the rotary axes by using values calculated
by Cycle 19
15 L Z+80 R0 FMAX Activate compensation for the spindle axis
16 L X-8.5 Y-10 R0 FMAX Activate compensation for the working plane
For manual positioning, always use the rotary axis
positions stored in Q parameters Q120 to Q122.
Avoid using functions, such as M94 (modulo rotary axes),
in order to avoid discrepancies between the actual and
nominal positions of rotary axes in multiple definitions.