
B–65160E/02
2. FUNCTION EXPLANATION
FANUC AC SPINDLE MOTOR a series
137
16i/16015
Gear ratio (HIGH) CTH1A=0, CTH2A=0
6556 3056 4056
6696 3196
1st–
2nd–
Gear ratio (MEDIUM HIGH) CTH1A=0, CTH2A=1
6557 3057 4057
6697 3197
1st–
2nd–
Gear ratio (MEDIUM LOW) CTH1A=1, CTH2A=0
6558 3058 4058
6698 3198
1st–
2nd–
Gear ratio (LOW) CTH1A=1, CTH2A=1
6559 3059 4059
6699 3199
1st–
2nd–
Data unit : Motor rotation for one rotation of spindle 100
(When parameter No. 4006 #1 (GRUNIT) is 1,
motor rotation 1000)
Data range : 0 to 32767
Standard setting : 100
These parameters set the gear ratio of the spindle motor to the spindle.
When the motor rotates 2.5 times for each turn of the spindle, for example,
set 250 in the parameter.
A parameter is selected by the CTH1A and CTH2A input signals.
The gear or clutch status must correspond to the status of the CTH1A and
CTH2A input signals.
16i/16015
Position gain on servo mode/on synchronization control
(HIGH) CTH1A=0, CTH2A=0
6565 3065 4065
6705 3205
1st–
2nd–
Position gain on servo mode/on synchronization control
(MEDIUM HIGH) CTH1A=0, CTH2A=1
6566 3066 4066
6706 3206
1st–
2nd–
Position gain on servo mode/on synchronization control
(MEDIUM LOW) CTH1A=1, CTH2A=0
6567 3067 4067
6707 3207
1st–
2nd–
Position gain on servo mode/on synchronization control
(LOW) CTH1A=1, CTH2A=1
6568 3068 4068
6708 3208
1st–
2nd–
Data unit : 0.01 sec
–1
Data range : 0 to 32767
Standard setting : 1000
This sets position gain in synchronization control. It is selected by
CTH1A or CTH2A of input signal.
16i/16015
Motor voltage setting on servo mode/on synchronization control
6585 3085 4085
6725 3225
1st–
2nd–
Data unit : 1%
Data range : 0 to 100
Standard setting : Varies with the motor model.
Set a motor voltage for spindle synchronization.