
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 5.FUNCTION DESCRIPTIONS
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5.9.6 Examples of Sequences
The following shows examples of sequences used when differential
speed rigid tapping is performed using the first spindle as the slave
axis (on the tool side).
<1> When differential spindle speed mode is commanded to slave
spindle, the slave spindle accelerates to the velocity of the
master spindle.
<2> After making sure that the slave spindle accelerates to the
velocity of the master spindle, start rigid tapping.
<3> Perform differential speed rigid tapping.
<4> When the velocity command of the slave spindle is 0 min
-1
, if
differential spindle speed mode is released upon completion of
rigid tapping, the slave spindle stops. If the velocity command of
the slave spindle is commanded not equal to 0 min
-1
, the slave
spindle accelerates or decelerates to the velocity commanded.
M29
SFRA
(PMC
→CNC)
SARA
(CNC
→PMC)
DEFMDA
(PMC
→CNC)
RGTAP
(PMC
→CNC)
Position loop
FIN
(PMC
→CNC)
ENB
(CNC
→PMC)
Slave axis
rotation speed
(on the tool
side)
Master axis
rotation speed (on
the workpiece
side)
<2>
<1>
<3>
<4>
0min
-1
M29 Sxxxx; G84 X. . R. . ; G80