Siemens SINUMERIK 808D User Manual page 60

Input fields
The input fields in the roughing cycle D screen form have the following meanings:
Parameter
Length l1
Diameter d1
Diameter d2
Radius R
Convex/concave
Max. infeed depth m1
Finishing allow- m2
ance
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2. In the displayed screen, press this softkey.
Alternatively, you can select this function from the turning cycle overview with cursor keys
and activate it with this hardkey.
Description
Enter the end point of the contour in the axial axis here, taking the contour start position
("Reference z0") in the axial axis (Z axis) as the starting point.
Outside diameter of the contour to be machined in the transverse axis (absolute position of
the X axis in the diameter).
Inside diameter of the "radius" to be machined in the radial axis (absolute position of the X
axis in the diameter).
This input value determines the size of the radius, the center of the circle being calculated
internally. It is located on the imaginary line that is central and "normal" (90
nary connecting line between points "(Z0-l1)/d1" and "Z0/d2". The choice of whether the
center point is on the side of the contour facing towards or away from the turning center is
determined by the "convex/concave" function key setting. If the radius entered is too small,
an error message will be displayed during machining (after a cycle start) since the contour
cannot be produced in this case.
This toggle key is used to specify on which side of the contour the circle center point should
be located. The circular machining direction, and hence the appearance of the finished
contour, is adjusted accordingly.
Enter the maximum infeed depth for roughing. The internal infeed calculation ensures that
the infeed is as uniform as possible throughout the roughing operation. This entry value
represents the maximum value possible and is therefore not exceeded.
Finishing allowance in the X axis (m2x)
Finishing allowance in the Z axis (m2z)
Programming and Operating Manual (Manual Machine Plus (MM+), Turning)
) to the imagi-
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01/2017