HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 119)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 119
2.7 Units—Finishing
Cycle form
H
Type of retraction. Tool backs off at 45° against the
machining direction and moves to the position I, K (default:
3):
 0: Diagonal
 1: First X, then Z direction
 2: First Z, then X direction
 3: Stops at safety clearance
 4: No retraction motion (tool remains on the end
coordinate)
 5: Diagonal to start position
 6: First X, then Z direction to start position
 7: First Z, then X direction to start position
 8: With G1 to I and K
I, K Cycle end position. Position that is approached at the end
of the cycle (I: diameter value).
D Omit elements (see figure)
E Plunging behavior
 E=0: Descending contours are not machined
 E>0: Plunging feed rate for declining contour elements.
Descending contour elements are machined.
 No input: The plunging feed rate is reduced during
machining of declining contour elements by up to 50 %.
Descending contour elements are machined.
O Feed rate reduction for circular elements (default: 0)
 0: Feed rate reduction is active
 1: No feed rate reduction
DXX Additive correction numbers 1 – 16
G58 Contour-parallel oversize (radius)
DI Axis-parallel oversize X
DK Axis-parallel oversize Z
Further forms: see page 60
If feed rate reduction is active, at least four spindle
revolutions are used to machine every "small" contour
element.
With the address Dxx you activate an additive
compensation for the entire cycle run. The additive
compensation is switched off again at the end of the cycle.
You edit additive compensation values in the Program Run
mode of operation.