
FANUC AC SPINDLE MOTOR a series
1. ADJUSTMENT
B–65160E/02
28
(h) When a high–resolution magnetic pulse coder in a motor is used
together with a high–resolution position coder
Example system configuration:
Spindle
amplifier
TYPE 2
JY2
Spindle
High–resolution magnetic pulse coder
Preamplifier
High–resolution position coder
Motor
JY4
1. Connect the feedback signal cables.
Detector Connector
High–resolution magnetic pulse coder (motor) JY2
High–resolution position coder (spindle) JY4
2. Set the detector–related parameters.
Parameter Setting Description
4001 #5 1 Uses a high–resolution
magnetic pulse coder.
4004 #0 1 Uses a high–resolution
position coder.
4003 #7, 6, 5, 4 0, 0, 0, 0 Sets a position coder signal.
4011 #2, 1, 0 Depends on the detector. Sets a speed detector.
4001 #2 1 Uses a position coder signal.
(i) When spindle switching control is performed, a built–in sensor
is used on the main spindle side, and a pulse generator in a motor
and a position coder are used for the subspindle side
Example system configuration: