System information

SECTION FOUR - PREPARATORY FUNCTIONS (G CODES)
Operation 1: Positioning of axes X and Y (or 4th and 5th if enabled)
Operation 2: Rapid traverse to point R
Operation 3: Hole machining
Operation 4: Operation at the bottom of a hole
Operation 5: Retraction to point R
Operation 6: Rapid traverse up to the initial point
Canned Cycle Operation
Positioning is normally performed on the XY plane, and hole machining is performed with the Z
axis. Positioning and hole machining must use this plane and axes combination. Canned cycles
can be used in any plane.
Canned cycle operations consist of three basic modes which are specified by particular modal G
codes as shown below.
(1) Data format G90 Absolute
G91 Incremental
.
(2) Return point level G98 Initial point level
G99 R point level
(3) Drilling mode G73
G80
G81
.
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