System information

SECTION FOUR - PREPARATORY FUNCTIONS (G CODES)
G00 M___
G86 X___ Y___ Z___ R___ F___
G04 P___ (Dwell is performed, but drilling is not.)
X__ Y___
G04 P___ (Dwell is performed, but drilling is not.)
X__ Y___
. .
b) Override
G90 is active at the beginning of each program. G90 cancels G91.
G04 P___ (Dwell is performed, but drilling is not.)
. .
. .
This may not have to be considered if spindle up-to-speed is available on the
machine tool.
Note 6: Operator Precautions
a) Single block
When a canned cycle is performed in the single block mode, the control
stops at the end of Operations 1, 2, and 6. Therefore it must be started at
least three times to drill one hole.
The feedrate override and spindle override are assumed to be 100%
during the operation of canned cycles G74 and G84.
Absolute/Incremental Mode
There are two modes of specifying moves: G90 (absolute) specifies a fixed location, and G91
(incremental) specifies a distance from the current location of the tool.
Absolute mode (modal) (G90)
This function causes the control to go into its normal absolute operating mode. In this mode, all
dimensions are referenced from a single reference point. This reference can either be the home
zero point, which is a fixed point on the machine, or an operator defined work coordinate point.
Because of the table/saddle limitation, X Y Z dimensions relative to the home zero can only be
negative on standard mills built by Milltronics. Dimensions relative to work coordinates can be
either negative or positive, depending on where the operator sets the zero coordinate.
Note: The machine defaults to G90 (absolute) when starting a program.
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