
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 2.EXPLANATION OF OPERATION MODES
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16i 30i
4065 4065
Position gain on synchronous control (HIGH) CTH1A=0, CTH2A=0
4066 4066
Position gain on synchronous control (MEDIUM HIGH) CTH1A=0, CTH2A=1
4067 4067
Position gain on synchronous control (MEDIUM LOW) CTH1A=1, CTH2A=0
4068 4068
Position gain on synchronous control (LOW) CTH1A=1, CTH2A=1
Unit of data : 0.01sec
-1
Valid data range : 0 to 32767
Standard setting : 1000
This sets position gain in spindle synchronous control. It is selected by
CTH1A or CTH2A of input signal.
16i 30i
4085 4085
Motor voltage setting on spindle synchronous control
Unit of data : 1%
Valid data range : 0 to 100
Standard setting : Depend on motor model.
Set a motor voltage for spindle synchronous control.
NOTE
Usually, set the same value as for the setting of a
motor voltage (No. 4083) on the velocity control
mode.
16i 30i
4171 4171
Denominator of arbitrary gear ratio between motor sensor and spindle (HIGH)
CTH1A=0
4172 4172
Numerator of arbitrary gear ratio between motor sensor and spindle (HIGH)
CTH1A=0
4173 4173
Denominator of arbitrary gear ratio between motor sensor and spindle (LOW)
CTH1A=1
4174 4174
Numerator of arbitrary gear ratio between motor sensor and spindle (LOW)
CTH1A=1
Unit of data :
Valid data range : 0 to 32767
Standard setting : 0
These parameters set conversion coefficients (numerator,
denominator) for using the detection arbitrary gear ratio function
(DMR function) by multiplying a motor sensor (Mi or MZi sensor)
feedback signal by a gear ratio to produce a spindle position feedback
signal.
When the spindle rotates Q times while the motor shaft rotates P times
(there is no common divisor other than 1 for P and Q), settings are:
No. 4171 (No. 4173 when CTH1A = 1) = P
No. 4172 (No. 4174 when CTH1A = 1) = Q
When 0 is set in any of these parameters, the setting of 1 is assumed.