
FANUC AC SPINDLE MOTOR a series
2. FUNCTION EXPLANATION
B–65160E/02
138
16i/16015
Magnetic flux switching point used for calculating an acceleration/
deceleration time constant used for synchronous control of the spindle
6300 3480 4336
6480 3700
1st–
2nd–
Data unit : 1 min
–1
(10 min
–1
when bit 2 (SPDUNT) of parameter No.
4006 is set to 1)
Data range : 0 to 32767
Standard setting : 0
Set a speed for switching the acceleration/deceleration time constant used
for spindle synchronization control.
In the area below the speed set in this parameter, acceleration/deceleration
is performed according to the time constant set in parameter No. 4032
(acceleration/deceleration time constant at spindle synchronization
control). In the area above the speed set in this parameter, the time
constant varies according to the torque characteristics.
When 0 is set in this parameter, linear acceleration/deceleration is
performed.
The same value must be specified in this parameter for the first spindle
and second spindle.
16i/16015
Bell–shaped acceleration/deceleration time constant for spindle
synchronization
6304 3484 4340
6484 3704
1st–
2nd–
Data unit : 1 msec
Data range : 0 to 512
Standard setting : 0
Set a bell–shaped acceleration/deceleration time constant used when the
specified synchronous speed for spindle synchronization is changed.
This parameter is applied to a move command after the acceleration/
deceleration time constant at spindle synchronization control set in
parameter No. 4032 is applied. Consequently, linear acceleration/
deceleration is performed according to the time constant set in this
parameter when 0 is set in parameter No. 4032.
When this parameter is set, the spindle synchronous speed control
completion signal (FSPSY), output when the synchronous speed is first
reached after the spindle synchronization mode is entered, is delayed by
the set time.
The same value must be specified, using this parameter, for both the 1st
and 2nd spindles.