Programming instructions

ADT-CNC4620 Programming Manual
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3) U, W and R reflect the relative position of cutting end and start. G90 has four track
combinations depending on the sign.
During diameter programming, if R and U do not have same sign and |R| > |U/2|, 0792-G90,
G92, G94 program error alarms, and the value of R exceeds allowed range
4) During first tool cutting, if U is 0, current value is the end coordinates by default; W can’t
be 0, or else the system alarms
5) Before executing G90, specify the position of start point, or else the system takes current
point as the start
6) G90 is valid in MDI mode, and modal function is also available.
As in Fig.
3-5-1:
Fig. 3-5-1