System information

SECTION FOUR - PREPARATORY FUNCTIONS (G CODES)
Note: The rapid traverse rate in the G00 command is set for each axis independently by the
machine tool builder. Accordingly, the rapid traverse rate cannot be specified in the
address F. In the positioning mode actuated by G00, the tool is accelerated to a
predetermined speed at the start of a block and is decelerated at the end of a block.
Execution proceeds to the next block after confirming the in-position. In-position means
that the axis position is within a specified range. (This range is determined by the
machine tool builder.)
G00 mode automatically accelerates and decelerates in a linear fashion allowing the
controlled axis to start and stop smoothly. The rate of accel/decel can be changed by the
machine tool builder.
Positioning (G01) Feed travels (modal)
Example: G1 X5 Y2 (The control defaults to G1 mode at the start of each program.)
This command actuates the linear interpolation mode. The feedrate is set to a cutting feed by the
F address and is modal. An example follows.
(G91) G01 X20 Y10 F20
The feedrate specified by the F address is the vector rate along the path; it is not the rate of each
axis.
The feedrate of linear interpolation (G01) and circular interpolation (G02, G03) are commanded
with numbers after the F address (FXXX.X).
The F address can appear anywhere in a block and specifies the rate of motion in inches or
millimeters per minute.
Tangential Feedrate Control:
The cutting feed is controlled so that speed along the tangential path is always the commanded
feedrate.
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