
B–65160E/02
2. FUNCTION EXPLANATION
FANUC AC SPINDLE MOTOR a series
141
Address
0T 0TT 15TT 16i/16
Description
– 1508 –
Spindle synchronization sequence
state
0754 1509 0414
Number of error pulses output for
1st spindle in spindle
synchronization
0755 1510 0415
Number of error pulses output for
2nd spindle in spindle
synchronization
0756 1511 0416
Error pulse difference between the
spindles in spindle
synchronization
(1) Synchronization control of spindle phase is executed when the signal
for controlling spindle phase in synchronization is entered in spindle
synchronization control mode (after output of the signal indicating
that synchronization control of spindle speed is completed). The
signal indicating that synchronization control of spindle phase is
completed is output when the difference between the error pulses of
the two spindles does not exceed the number of pulses specified in
parameter 303 of the NC function. The two spindles are not
synchronized when synchronization control of spindle phase is in
progress (until the signal indicating that the synchronization control
of spindle phase is completed is set to 1). The command for spindle
phase synchronization must not be issued while a workpiece is being
held with the two spindles. If it is issued, synchronization control of
spindle phase is started automatically.
(2) PMC signal, SYCAL is provided to monitor synchronization errors
between spindles for which spindle synchronization control or
synchronization control of spindle phase is in effect. The
synchronization error between the two spindles is always monitored.
The SYCAL signal is set to 1 when the error (the absolute value of
the error pulse) specified in parameter 576 of the 1st spindle is
exceeded, and set to 0 when not exceeded.
(3) Like the conventional spindle speed (S) command for which 4 or 5
digits are issued for the 1st spindle, the signal for specifying spindle
speed can be generated when spindle synchronization control or
synchronization control of spindle phase are in the process of being
put into effect. The SIND, SSIN, SSGN, R01I to R12I,
*
SSTP, and
SOR signals are effective as usual. The maximum speed in
synchronization control is determined by the maximum speed set for
the motor of the 1st spindle (parameter 6520).
[Example] Maximum speed of the motor of the 1st spindle
: 6000 min
–1
Maximum speed of the motor of the 2nd spindle
: 4500 min
–1
2.6.7
Diagnosis
2.6.8
Additional
Explanations of Series
0–TC