Programming instructions

ADT-CNC4620 Programming Manual
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Start point End point Circle center
Fig. 3-2-3-2
Program:
G02 X63.06 Z-20.0 R19.26 F300;
Or G02 U17.81 W-20.0 R19.26 F300;
Or G02 X63.06 Z-20.0 I35.36 K-6.37 F300;
Or G02 U17.81 W-20.0 I35.36 K-6.37 F300;
Notice:
z In G02/G03 block, it is required to enter at least one of the instruction addresses of I, K
and R, or else the system will alarm; if I, K and R are entered at the same time, R is
valid, while I and K are invalid; if R isn’t entered or R equals to 0, the system alarms;
z If X(U) and Z(W) aren’t entered, and R is used to specify the radius, X axis and Z axis
won’t move when G02/G03 instruction is executed; if R isn’t entered and use I, K
instruction word, the track of executing G02/G03 instruction is a full circle (360°);
z When R instruction is used, it is two arcs larger and smaller than 180° in theory. In this
system, the arc smaller than 180° is valid (as in Fig. 3-4-3 below). If the end point ins’t on
the arc defined with R, the system will alarm;
End point Start point
Fig. 3-4-3
z In G02/G03 block, if I and K instruction words are used to define the circle center, the
system won’t alarm even if the end point isn’t on the arc. The track of the instruction is: