Feedrate Control and Spindle Motion
7.4 Positioning spindles (position-controlled axis operation) (SPOS, M19 and SPOSA)
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
7-15
Example of positioning spindle with negative direction of rotation
Position spindle 2 at 250° in negative direction of rotation.
N10 SPOSA[2]=ACN(250) ;The spindle decelerates if necessary and accelerates
in the ;opposite direction to the positioning
;movement
'&
$&
r
r
;
Example of positioning spindles for position-controlled axis operation
...
N10 M3 S500
...
N90 SPOS[2]=0 or ;Position control on, spindle 2 positioned to 0, axis mode
;can be used in the next block.
M2=70 ;Spindle 2 is switched to axis mode
N100 X50 C180 ;Spindle 2 (C axis) is traversed with linear interpolation
;synchronous to X.
N110 Z20 SPOS[2]=90 ;Spindle 2 is positioned to 90 degrees.
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