
2.EXPLANATION OF OPERATION MODES FANUC AC SPINDLE MOTOR αi series B-65280EN/05
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(2) Spindle 1 and spindle 2 perform phase matching in stop state, then are
accelerated in synchronism.
Next, spindle 1 and spindle 2 are decelerated to a stop in synchronism.
Speed
Synchronous
speed
Spindle 1, 2
Phase matching
cceleration/deceleration
synchronization
Spindle synchronous
control signal
SPSYC
Time
Spindle synchronous
speed command signal
R12I-R01I
Spindle phase
synchronous control signal
SPPHS
Spindle synchronous speed
control completion signal
FSPSY
Spindle synchronous speed
control completion signal
FSPPH
(i)
(ii)
(iii)
(iv)
(v) (vi)
(vii)
(viii)
First spindle forward
rotation command
SFRA
Second spindle forward
rotation command
SFRB
First spindle speed
zero detection signal
SSTA
Second spindle speed
zero detection signal
SSTB
o
e
(i) The spindle synchronous speed command signal is set to 0, and
the spindle synchronous control signal SPSYC is set to 1.
(ii) The spindle synchronous speed control completion signal FSPSY
set to 1 is awaited.
(iii) The spindle phase synchronous control signal SPPHS is set to 1.
(iv) The spindle phase synchronous control completion signal FSPPH
set to 1 is awaited.
(v) The spindle synchronous speed command signal is input.
(vi) The spindle synchronous speed command signal is set to 0.
(vii) The speed zero detection signal of both spindles set to 1 is
awaited.
(viii) The spindle phase synchronous control signal SPPHS is set to 0
and the spindle synchronous control signal SPSYC is set to 0,
then the forward rotation command SFR of both spindles is set to
0.