
B–64113EN–1/01
9. SPINDLE SPEED FUNCTION
555
Positioning by specifying a semi–fixed angle (by M code) is always
incremental. To perform positioning by specifying an optional angle,
specify the distance between the program origin and the end point
(absolute) with address C and the distance between the start point and the
end point (incremental) with address H.
180°
90°
B
A
Program origin
G code system A G code system B, C
Address used
Command of
A!B on the
above Fig.
Address used
and G–code
Command of
A!B on the
above Fig.
Absolute
command
Direct the end
point position by
the distance from
the program
origin.
C C180.0 ; G90,C G90C180.0 ;
Incremental
command
Command by the
distance between
the start and end
points.
H H90.0 ; G91,C G91C90.0 ;
Spindle positioning is done at the rapid traverse rate specified by
parameter No. 1420, to which linear acceleration deceleration are applied.
Overrides of 100%, 50%, 25% and F0 (parameter No. 1421) are also
applied.
A specific M code (parameter no. 4961) must be set when the mode is
changed from spindle positioning to normal spindle rotation.
D Absolute and
incremental commands
D Spindle positioning
feedrate
D Spindle positioning reset