It is available to command spindle speed after completion to start spindle synchronous control or
spindle phase synchronous control same as S4/5 digits for master spindle.
Also it is available to use PMC signal SIND, SSIN, SSGN, R01I-R12I,*SSTP,SOR etc as usual.
You can control spindle speed from PMC signal by setting SIND=1 and R01I-R12I, but can not control
spindle speed by R01I-R12I signal after completion spindle synchronous control. It is necessary to set
parameters (No.3741,3742,3743,3744) as maximum spindle speed for each gear. If the parameter for
the used gear was set to 0, the spindle is not move by R01I-R12I signal.
S command and PMC control signal for master spindle before completion of spindle synchronous
control or spindle phase synchronous control is enabled as soon as completion to start each control.
Also S command during spindle synchronous control is enabled for master spindle after completion to
release spindle synchronous control.
Spindle speed of slave spindle after release spindle synchronous control is same as spindle speed
before spindle synchronous control.
If it is change the load by cutting condition (example thread cutting) during spindle synchronous
control, spindle speed is changed and spindle synchronous speed control completion signal FSPSY
may become to 0.
It is available to set rotational direction of spindle by parameter ND1 (No.4800#0 for 1
ND2 (No.4800#1 for 2
It must be set gear ratio as 1:1 between spindle and position coder.
It is not available to use spindle speed offset compensation value (parameter No.3731) during spindle
It is available spindle phase synchronous control only during spindle synchronous control.
Also it is available to change spindle phase repeatedly during spindle synchronous control.
It is not available to use both spindle synchronous control by program command and by PMC DI
signal for same spindle. If you command spindle synchronous control by program and by DI signal for
same spindle, the P/S alarm 194 is occurred.
FANUC Series 16i/18i/21i-TB
Spindle synchronous control