Fagor 8025 GP, Operating Manual

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8025/8030 CNC PROGRAMMING MANUAL 19
Once any of the codes G17,G18,G19 has been programmed, the CNC will move the axes
programmed thereafter.
I,J,K define the arc’s center.
I: distance from the starting point to the arc’s center, along X(W)(V) axis.
J: distance from the starting point to the arc’s center, along Y(W)(V) axis.
K: distance from the starting point to the arc’s center, along Z(W)(V) axis.
I,J,K must be programmed with sign. They must always be programmed, even when their
value is zero.
The CNC takes the arc’s center as the new polar origin when carrying out a G02,G03
circular interpolation.
The knob on the front panel of the CNC (M.F.O.) can be used to vary the programmed
feedrate F between 0% and 120% or between 0% and 100%, according to parameter
P606(2).
If during a G02/G03 movement a Rapid Feed key is pressed, the movement will
be performed at twice the programmed feedrate if P606(2) is zero. The same thing will
happen when the external START input is activated if P609(7) is one.