Siemens SINUMERIK 840D sl Turning Operating Manual page 401

Parameter Description
Axes XY (at right angles)
X0 X coordinate of the reference point (abs)
Y0 Y coordinate of the reference point (abs)
α0 Starting angle for first position referred to the X axis.
Positive angle: Circle is rotated counter-clockwise.
Negative angle: Circle is rotated clockwise.
α1 Incrementing angle
R Radius
N Number of positions
Positioning
● Straight line: Next position is approached linearly in rapid traverse.
(only for G code)
● Circular: Next position is approached along a circular path at the feedrate defined in
the machine data.
Axes ZC (with G19)
Z0 Z coordinate of the reference point (abs)
C0 Start angle of the C axis (abs)
N Number of positions
(only for G code)
Machining
● Face C
surface
● Face Y
(only for Shop‐
● Peripheral surface C
Turn)
● Peripheral surface Y
Position
● At the front (face)
(only for Shop‐
● At the rear (face)
Turn)
● Outside (peripheral surface)
● Inside (peripheral surface)
Selection options for the following positions - (only for face C/Y)
Position
● center
(only for Shop‐
● off-center
Turn)
Face C:
center/ Position circle center on the face surface
off-center Position circle off-center on the face surface
Z0 Z coordinate of the reference point (abs)
X0 X coordinate of the reference point (abs) – (only for off-center)
Y0 Y coordinate of the reference point (abs) – (only for off-center)
α0 Starting angle for first position referred to the X axis.
Positive angle: Circle is rotated counter-clockwise.
Negative angle: Circle is rotated clockwise.
α1 Incrementing angle
R Radius
N Number of positions
Positioning ● Straight line: Next position is approached linearly in rapid traverse.
(only for Shop‐
● Circular: Next position is approached along a circular path at the feedrate defined in
Turn)
the machine data.
Turning
Operating Manual, 06/2019, A5E44903486B AB
Programming technology functions (cycles)
10.1 Drilling
Unit
mm
mm
Degrees
Degrees
mm
mm
Degrees
mm
mm
mm
Degrees
Degrees
mm
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