
FANUC AC SPINDLE MOTOR a series
2. FUNCTION EXPLANATION
B–65160E/02
86
(a) Only one arbitrary gear ratio parameter is valid in case of
5604#1=1, 5604#2=0.
Parameter NO
Gear teeth number of spindle side 5703
Gear teeth number of position coder side 5704
(b) Four kinds of arbitrary gear ratio parameters are valid in case of
5604#2=1.
Each parameter is selected according to the gear selection signal
(CTH1A, CTH2A) .
Gear signal Parameter number
CTH1A CTH2A Gear teeth number of
spindle side
Gear teeth number of
position coder side
0 0 5771 5781
0 1 5772 5782
1 0 5773 5783
1 1 5774 5784
Gear signal Parameter number
CTH1A CTH2A Gear teeth number of
spindle side
Gear teeth number of
position coder side
0 0 5852 5851
0 1 5855 5854
1 0 5858 5857
1 1 5861 5860
D Set the gear teeth number of the spindle side.
Each parameter is selected according to the gear selection signal.
Standard machining: GR3O, GR2O, GR1O
Turning and maching with surface speed constant option: GR2,
GR1
Second spindle of turning: GR21
(Multi– spindle control option is needed)
Standard machining [M series]
Gear signal
GR1O GR2O GR3O
Parameter NO
1 0 0 5221
0 1 0 5222
0 0 1 5223
Series 15
Series 15i
Series 16i/16