Travel Commands With Polar Coordinates; Reference Point Of The Polar Coordinates (G110, G111, G112) - Siemens Sinumerik 840D sl Programming Manual

Motion commands

10.3 Travel commands with polar coordinates

Program code
N10 G17 S400 M3
N20 G0 X40 Y-6 Z2
N30 G1 Z-3 F40
N40 X12 Y-20
N50 G0 Z100 M30
10.3 Travel commands with polar coordinates
10.3.1

Reference point of the polar coordinates (G110, G111, G112)

The point from which the dimensioning starts is called the pole.
The pole can be specified in Cartesian or polar coordinates.
The reference point for the pole coordinates is clearly defined with the G110 to G112
commands. Absolute or incremental dimension inputs therefore have no effect.
Syntax
G110/G111/G112 X... Y... Z...
G110/G111/G112 AP=... RP=...
Meaning
G110 ...:
G111 ...:
G112 ...:
X... Y... Z...:
AP=... RP=...:
166
Comment
; Selection of the working plane, spindle clockwise
; Approach of the starting position specified with Cartesian
coordinates in rapid traverse
; Activation of the linear interpolation, feed of the tool
; Travel on an inclined line to an end position specified with
Cartesian coordinates
; Retraction in rapid traverse for tool change
With the command G110, the following pole coordinates refer to the last position
reached.
With the command G111, the following pole coordinates refer to the zero point of
the current workpiece coordinate system.
With the command G112, the following pole coordinates refer to the last valid
pole.
Note:
The commands G110...G112 must be programmed in a separate NC block.
Specification of the pole in Cartesian coordinates
Specification of the pole in polar coordinates
Polar angle
AP=...:
Angle between the polar radius and the horizontal axis of the working
plane (e.g. X axis for G17). The positive direction of rotation runs coun‐
ter-clockwise.
Range of values:
Polar radius
RP=...:
The specification is always in absolute positive values in [mm] or [inch].
± 0...360°
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Fundamentals