HEIDENHAIN TNC 620 User Manual page 172

5
Programming a helix
Define the same algebraic sign for the direction of
rotation DR and the incremental total angle IPA. The tool
may otherwise move on a wrong path.
For the total angle IPA you can enter a value of
-99 999.9999° to +99 999.9999°.
Polar coordinates angle: Enter the total angle
of tool traverse along the helix in incremental
dimensions.
After entering the angle, specify the tool axis
with an axis selection key
Coordinate: Enter the coordinate for the height of
the helix in incremental dimensions
Direction of rotation DR
Clockwise helix: DR–
Counterclockwise helix: DR+
Enter the radius compensation according to the
table
Example: Thread M6 x 1 mm with 5 revolutions
12 L Z+0 F100 M3
13 CC X+40 Y+25
14 LP PR+3 PA+270 RL F50
15 CP IPA-1800 IZ+5 DR-
172
Programming contours | Path contours – Polar coordinates
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022