
FANUC AC SPINDLE MOTOR a series
2. FUNCTION EXPLANATION
B–65160E/02
144
540, 541, 542, and 543 of tool post 1.
When the value set in the parameter corresponding to the selected
gear is 0, the rotations of the spindles are not synchronized even if a
command is entered in the 12-bit signal of the SIND signal.
(6) The load may change due to cutting (or threading). When the load
changes in spindle synchronization control, the spindle speed may
change and the signal indicating that the synchronization control of
spindle speed is completed may go off temporarily.
(7) Parameter PRM 0080, #6 is used to set the direction of rotation of the
1st and 2nd spindles.
Parameter PRM 0080 #6=”0” Counterclockwise (CCW)
Parameter PRM 0080 #6=”1” Clockwise (CW)
(8) The gear ratio of the spindle to the position coder must be set to
one-to-one.
(9) In spindle synchronization control, the compensation value for the
spindle speed offset (parameter 516) is disabled.
(10)The command for spindle phase synchronization is effective only
in spindle synchronization control mode.
(11) Alarm
The following alarm may be issued in spindle synchronization control.
P/S alarm
Alarm number Description
194 A command for Cs contouring control, spindle indexing,
or rigid tapping was issued in spindle synchronization
control.