
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 2.EXPLANATION OF OPERATION MODES
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2.5.8 Details of Related Parameters
This subsection details the serial spindle parameters (in the four
thousands for 16i and 30i) among the parameters related to spindle
synchronous control. For details of other parameters, refer to the
Connection Manual (Function) of each CNC.
(a) For Series 16i/18i/21i
“FANUC Series 16i/18i/21i-MODEL B
CONNECTION MANUAL (FUNCTION) : B-63523EN-1
Refer to Section 9.12 “SPINDLE SYNCHRONOUS
CONTROL.”
(b) For Series 30i/31i/32i
“FANUC Series 30i/31i/32i-MODEL A
CONNECTION MANUAL (FUNCTION) : B-63943EN-1
Refer to Section 11.13 “SPINDLE SYNCHRONOUS
CONTROL.”
(c) For Series 0i
“FANUC Series 0i-MODEL C
CONNECTION MANUAL (FUNCTION) : B-64113EN-1
Refer to Section 9.11 “SPINDLE SYNCHRONOUS
CONTROL.”
16i
30
#7 #6 #5 #4 #3 #2 #1 #0
4002 4002
SYCDRT
SYCDRT Whether to enable the rotation direction signal (SFR/SRV) function
on spindle synchronous control
0 : Enables the rotation direction function.
If a move command from the CNC is positive (+),
(a) The spindle rotates in the CCW (counterclockwise)
direction when the input signal SFR (bit 5 of G70) = 1.
(b) The spindle rotates in the CW (clockwise) direction when
the input signal SRV (bit 4 of G70) = 1.
1 : Disables the rotation direction function.
If a move command from the CNC is positive (+), the spindle
rotates in the CCW (counterclockwise) direction when the input
signal SFR = 1 or SRV = 1.
16i 30i
#7 #6 #5 #4 #3 #2 #1 #0
4006 4006
SYCREF GRUNIT
GRUNIT Sets a gear ratio setting resolution:
0 : 1/100 unit
1 : 1/1000 unit
Select a gear ratio data setting resolution from the following:
(a) Resolution based on motor speed increased by a factor of 100
relative to one spindle rotation
(b) Resolution based on motor speed increased by a factor of 1000
relative to one spindle rotation
Depending on the setting of this parameter, the increment system of
the parameters indicated in the table below changes.