Siemens SINUMERIK 808D User Manual

Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017
315
In contour programming, the contour calculator converts the Cartesian coordinates of the preceding end point using the
definitive pole into polar coordinates. This also applies if the preceding element has been given in polar coordinates, since
this could relate to another pole if a pole has been inserted in the meantime.
Pole change example
Po le:
Xpole = 0.0,
Ypole = 0.0,
(Pole 0)
End point:
L1abs = 10.0 ϕabs = 30.0°
Calculated Cart. Coordinates
Xabs = 8.6603
Yabs = 5.0
New pole:
Xpole1 = 5.0
Ypole1 = 5.0
(Pole 1)
Calculated polar coord. Predecessor
L1abs = 3.6603
ϕabs = 0.0°
Next point:
L1inc = -2.0
ϕinc = 45.0°
Absolute polar coordinates for current element
L1abs = 1.6603
ϕ
abs = 45.0°
Calculate Cartesian coordinates
Xabs = 1.1740
Yabs = 1.1740

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English