
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 2.EXPLANATION OF OPERATION MODES
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2.5.6 Examples of Sequences
(1) While spindle 1 is rotating, spindle 2 is accelerated for synchronization with
spindle 1, and phase matching is performed. Then, the synchronous speed is
also changed for acceleration/deceleration synchronization.
cceleration/deceleration synchronization
Speed
Synchronous
speed A
Synchronous
speed B
Spindle 1
Spindle 2
Phase matching
Spindle synchronous
control signal
SPSYC
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
Speed A
Speed B
Time
1
0
1
0
(i)
(ii)
(iii)
(iv)
First spindle forward
rotation command
SFRA
(Note 2)
Second spindle forward
rotation command
SFRB
(Note 2)
o
e
(i) The spindle synchronous speed command signal is input to set the
spindle synchronous control signal SPSYC 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.
NOTE
1 When the spindle phase synchronous control signal is input, the spindle synchronous
speed control completion signal is once set to 0, then is set to 1 again upon
completion of phase synchronization.
2 Set the spindle forward rotation command SFR (or the spindle reverse rotation
command SRV) to 1 at all times during spindle synchronous control.