HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 504)

504 DIN programming for the Y axis
6.2 Cont
ours in the XY plane
6.2 Contours in the XY plane
Starting point of contour in XY plane G170-Geo
G170 defines the starting point of a contour in the XY plane.
Line segment in XY plane G171-Geo
G171 defines a line segment in a contour of the XY plane.
Parameters
X
Starting point of contour (radius)
Y Starting point of contour
PZ Starting point (polar radius)
W Starting point (polar angle)
Parameters
X
End point (radius)
Y End point
AN Angle to X axis (for direction of angle, see help graphic)
Q Point of intersection. End point if the line segment intersects a
circular arc (default: 0):
 0: Near point of intersection
 1: Far point of intersection
BR Chamfer/rounding. Defines the transition to the next contour
element. When entering a chamfer/rounding, program the
theoretical end point.
 No entry: Tangential transition
 BR=0: No tangential transition
 BR>0: Radius of rounding
 BR<0: Width of chamfer
PZ End point (polar radius; reference: workpiece zero point)
W End point (polar angle; reference: workpiece zero point)
AR Angle (AR corresponds to AN)
R Length (polar radius; reference: last contour point)
Programming
 X, Y: Absolute, incremental, modal or "?"
 ANi: Angle to the subsequent element
 ARi: Angle to the previous element