Polar Coordinates, Pole Definition: G110, G111, G112 - Siemens sinumerik 802d sl Operation And Programming Manual

Programming
8.2 Positional data
8.2.4

Polar coordinates, Pole definition: G110, G111, G112

Functionality
In addition to the common specification in Cartesian coordinates (X, Y), the points of a work-
piece can also be specified using polar coordinates.
Polar coordinates are also helpful if a workpiece or a part of it is dimensioned from a central
point (pole) with specification of the radius and the angle.
Plane
The polar coordinates refer to the plane enabled using G17.
The 3rd axis standing vertically on this plane can be specified additionally. When doing so,
spatial specifications can be programmed as cylinder coordinates.
Polar radius RP=...
The polar radius specifies the distance of the point to the pole. It is stored and must only be
written in blocks in which it changes, after changing the pole or when switching the plane.
Polar angle AP=...
The angle is always referred to the horizontal axis (abscissa) of the plane (for example, with
G17: X axis). Both positive and negative angles can be specified.
The polar angle remains stored and must only be written in blocks in which it changes, after
changing the pole or when switching the plane.
Y
Fig. 8-5
8-140
Point
defined by RP, AP
RP=...
+
AP=...
Pole
G17: X/Y plane
Polar radius and polar angle with definition of the positive direction
SINUMERIK 802D sl Operation and Programming Nibbling (BP-N), 06/2006 Edition
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6FC5 398-3CP10-0BA0