
FANUC AC SPINDLE MOTOR a series
2. FUNCTION EXPLANATION
B–65160E/02
94
Gear selection signal
Fst. sp Snd. sp
Time constant
(Cutting in)
Time constant
(Cutting out)
Rigid tapping spindle
max. speed
GR1 GR2 GR21
Parameter NO Parameter NO Parameter NO
0 0 0 415 419 423
1 0 1 416 420 424
0 1 417 421 425
1 1 418 422 426
v) The override at extracting
0063 #4
0 : The override at extracting is not valid.
1 : The override at extracting is valid.
(The override value is set to NO. 258)
(c) Series 15
i) Acc/Dec type
5605 #1
0 : Exponential type Acc/ Dec
1 : Linear type Acc/ Dec (Standard setting)
ii) Setting of “Low end speed of exponential type Acc/Dec” (It
is valid for exponential type Acc/Dec)
D When 5605#2=0, the same parameter data is used for all gear
and the address is
5752
D When 5605#2=1, each parameter can be set for each gear.
Each parameter is selected according to the gear signal
(CTH1A, CTH2A) .
Gear signal
CTH1A CTH2A
Parameter NO
0 0 5761
0 1 5763
1 0 5765
iii) Set Acc/Dec the time constant of the tapping axis and the
spindle.
D When 5605#2=0, the same parameter data is used for all gear.
The time to get to the spindle maximum speed at the rigid
tapping is set.
Acc/Dec time constant 5751
Spindle maximum speed 5757
D When bit 2 of parameter No. 5605 is set to 1, one of the three
acceleration/deceleration time constants is selected,
depending on the spindle speed. When a spindle speed is
specified, appropriate parameters are set automatically.
Parameter No. for
maximum spindle speed for
rigid tapping
Parameter No. for
acceleration/deceleration
time constant
Gear 1 5757 5760