Programming A Circle With Known Center Point - Siemens SINUMERIK 840D sl Turning Operating Manual

Parameters
X
Y
Z
U
C
C1
C3
Z3
AWZ
GS
F
Radius compensation
10.7.12

Programming a circle with known center point

To program a circle or arc with a known center point, use the "Circle center point" function.
The tool traverses a circular path from its actual position to the programmed target position at
the machining feedrate. The system calculates the radius of the circle/arc on the basis of the
entered interpolation parameter settings I and K.
Turning
Operating Manual, 06/2019, A5E44903486B AB
Description
Target position X ∅ (abs) or target position X referred to the last programmed posi‐
tion (inc)
Target position Y (abs) or target position Y referred to the last programmed position
(inc)
Target position Z (abs) or target position Z referred to the last programmed position
(inc)
Target position (abs) or target position referred to the actual position (inc)
Target angle (abs) or target angle referred to the actual position (inc)
Target position of C axis of main spindle (abs or inc)
Target position of C axis of counterspindle (abs or inc)
Target position of special axis (abs or inc)
Note:
Incremental dimension: The sign is also evaluated.
Target angle (abs) or target angle referred to the actual position (inc)
Target angle (abs) or target angle referred to the actual position (inc)
Machining feedrate
Alternatively, rapid traverse
Input defining which side of the contour the cutter travels in the traversing direction:
Radius compensation to right of contour
Radius compensation to left of contour
Radius compensation off
The previously programmed setting for radius compensation is used.
Programming technology functions (cycles)
10.7 Additional cycles and functions in ShopTurn
Unit
mm
mm
mm
mm
Degrees
mm
mm
mm
Degrees
Degrees
mm/rev
mm/min
mm/tooth
641