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Chapter 3 G Commands
73
Ⅰ
Programming
●
Coordinates display:
After G12.1 is executed, the absolute coordinates, the machine coordinates
and the incremental coordinates display the actual position of the tool, the
remaining distance to move in a block is displayed based on the coordinates
in the polar coordinate interpolation plane, and after G13.1 is executed or
the reset is done, the coordinates in the current system plane is displayed.
Note 1: G12.1
，
G13.1 are in Group 21, G12.1
，
G13.1
，
G16
，
G15 are in a separate line.
Note 2: The tool change cannot be executed in G12.1-G13.1, the tool change operation and the positioning
followed by the tool change must be performed before G12.1.
Note 3: The system cannot start the polar coordinate interpolation during C tool compensation or in G99,
otherwise, it alarms.
Note 4: When G12.1 is commanded, the tool position of the polar coordinate interpolation is at the angle of 0.
5) It is necessary to firstly perform the length offset value before starting it; otherwise, the alarm may
occur.
Example:
Fig.3-34
O0000 (O0000)
T0101
G0 X80 C0 W0
G12.1
G6.3 X0 C20 A40 B20 F1000
G16----the followings are the length and the angle
programming
G2 X-10 C15 R5 replace to G2 X15.8114 C108.435 R5
G3 X-10 C-15 R15 G3 X15.8114 C251.565 R15
G15-----cancel the above programming mode and the
followings are Cartesian coordinate programming
G2 X0 C-20 R5
G1 X40 C-20
G7.3 X80 C0 P10000 Q60000
G13.1
M30
