
5.FUNCTION DESCRIPTIONS FANUC AC SPINDLE MOTOR αi series B-65280EN/05
- 346 -
15
i 16i 30i
3078 4078 4078
MS signal constant
Unit of data :
Valid data range : 80 to 1000
Standard setting value : 200
This data is used to set a value calculated from the expression below.
L 1
Settings =
2
×
2
π × H
× 4096
where
L : Magnet length [mm]
H : Distance from the spindle center to magnet [mm]
Example
When H = 100 mm and L = 50 mm
(50/2)
MS signal constant =
2
π × 100
× 4096
163
15
i 16i 30i
3079 4079 4079
MS signal gain adjustment
Unit of data :
Valid data range : -128 to 127
Standard setting value : 0
This data is used to adjust the amplitude of the MS signal. Usually,
use the values indicated in the table below as standard values.
Magnet
Name
Specification
drawing number
Type Length [mm]
MS signal
gain
Not specified.
Standard
A57L-0001-0037
0
Magnetic sensor N A57L-0001-0037/N
Standard (TYPE II) 50
0
Magnetic sensor P A57L-0001-0037/P Compact type (TYPE III) 50 -20
Magnetic sensor Q A57L-0001-0037/Q Cylinder type with diameter of φ40 (TYPE IV) 31 70
Magnetic sensor R A57L-0001-0037/R Cylinder type with diameter of φ50 (TYPEV) 37 50
Magnetic sensor S A57L-0001-0037/S Cylinder type with diameter of φ60 (TYPEVI) 43 70
Magnetic sensor T A57L-0001-0037/T Cylinder type with diameter of φ70 (TYPEVII) 49 40
15
i 16i 30i
3084 4084 4084
Motor voltage setting on orientation
Unit of data : 1%
Valid data range : 0 to 100
Standard setting value : 30
This data is used to specify the motor voltage for spindle orientation.
Depending on the motor model, set 30 usually.