Chapter 9 NC Control Function
(2) Specifying the central point of an arc (I, J, K)
I_ J_ K_: Central point-position command of an arc for circular interpolation
The position command of axis, "I_ J_ K_" is used to command the position of each origin point on the coordinate
to the individual axis when commanding the central point of the arc for circular interpolation.
You can specify the location of the central point of the arc behind "I_ J_ K_".
"I_ J_ K_" must specify the increment value from the current position to the origin.
When you specify the position of the coordinate, the operating mode of the command depends on whether to use
the value that includes "." or not ".". Please refer to the position formula in "9.2.3 System of units of data (2) ".
G90
G02 X100. Y100. I50. J50. % clockwise circular interpolation, X-axis 100, Y-axis 100, Central
point(X50, Y50)
M02
The above program shows the traverse target point, X-axis 100, Y-axis 100 and the coordinate of the origin direct
the clockwise circular interpolation with X-axis 50, Y-axis 50.
(3) Speed command (F)
The speed command has the function to instruct the speed of the interpolation command.
If there is no separate speed command, it operates at the basic speed set at the lower limit of the cutting feed
among NC channel parameters.
The speed command is valid for the interpolation command only and has no effect on the rapid traverse command.
F_: Speed command
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