
B-65280EN/05 FANUC AC SPINDLE MOTOR βi series 2.EXPLANATION OF OPERATION MODES
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[Sample system configuration 2]
Spindle motor with built-in MZ
i
sensor
Spindle
JYA2
SPM
TYPE A
Directly connected or connected with a gear or timing bel
at a ratio of 1:1
(3) When the external one-rotation signal (proximity switch) is used
[Sample system configuration]
Spindle motor with built-in M
i
sensor
(or MZ
i
sensor)
Spindle
Gear or timing belt
External one-rotation
signal (proximity switch)
JYA3
JYA2
SVPM
(TYPE A)
NOTE
1 For stable detection of the one-rotation signal, fix the
rotation direction (bits 3 and 2 of No. 4003) for
orientation at one direction.
2 Set the type (bits 3 and 2 of No. 4004) of the
external one-rotation signal (proximity switch).
3 For stable detection of the one-rotation signal, set an
orientation speed (No. 4038) from 50 to 100 min
-1
according to the specification of the external
one-rotation signal (proximity switch).
4 The detection of the one-rotation signal starts after
the orientation speed is reached.
5 Set the parameters (No. 4171 to No. 4174) for the
numerator/denominator of an arbitrary gear ratio
between the motor sensor and spindle.