
B–65160E/02
3. EXPLANATION OF
PARAMETERS
FANUC AC SPINDLE MOTOR a series
187
16i/1615 15i0
Spindle synchronization speed arrival level
6533 3033 3033 4033
6673 3173
Data unit : 1 min
–1
(when parameter No. 4006 #2 (SPDUNT)
= 1, 10 min
–1
)
Data range : 0 to 32767
Standard setting : 10 (10 min
–1
)
For the synchronization speed command at spindle synchronization
control, if the deviations of the respective spindle motor speeds are within
the setting level, the spindle synchronization speed control complete
signal (FSPSY) becomes ”1”.
16i/1615 15i0
Shift amount at spindle phase synchronization control
6534 3034 3034 4034
6674 3174
Data unit : 1 pulse (360°/4096)
Data range : 0 to 4095
Standard setting : 0 (0 pulse)
Sets the shift amount from the reference point at spindle phase
synchronization control (1 rotation signal).
16i/1615 15i0
Spindle phase synchronization compensation data
6535 3035 3035 4035
6675 3175
Data unit : pulse/2 msec
Data range : 0 to 4095
Standard setting : 10
This parameter reduces speed fluctuations when aligning phase of
spindles in spindle phase synchronization control.
When this parameter is ”0”, since the phase alignment amount is only
issued once, the position deviation quickly becomes large, and there are
large speed changes on phase alignment.
It is possible to perform smooth phase alignments through issuing
separate commands for phase alignment amounts for the number of 2
msec pulses set in this parameter.
16i/1615 15i0
Feedforward coefficient
6536 3036 3036 4036
6676 3176
Data unit : 1%
Data range : 0 to 100 (0 to 100%)
Standard setting : 0%
Set the feedforward coefficient when feedforward control is executed in
servo mode (rigid tap/Cs axis control etc.) and spindle positioning.