
FANUC AC SPINDLE MOTOR a series
2. FUNCTION EXPLANATION
B–65160E/02
78
A. Check that normal operation is possible.
B. Prepare and check the rigid tapping ladder program. (See Section 2.4.2.)
E. Check the precision by actually performing cutting.
If there is a problem with the precision of the machine, adjust the acceleration/deceleration time
constant and velocity loop gains again.
C. Set up the detector–related parameters according to the system configuration.
B. (See Sections 2.4.3 and 2.4.4.)
D Specify to use the position coder signal.
D Set up the position coder signal.
D Specify the rotation direction of the spindle and motor and that of the spindle and position coder.
D Set up the gear ratio between the spindle and motor.
D Specify an arbitrary gear ratio (for rigid tapping that uses a signal from the MZ sensor incorporated
in the motor when the gear ratio between the spindle and motor is not 1:1).
D. Adjust the parameters according to the adjustment procedure. (See Section 2.4.5.)
D Maximum rotation speed and acceleration/deceleration time constant for rigid tapping
D Position gain for rigid tapping
D Velocity loop proportional and integration gains for rigid tapping
D Motor voltage for rigid tapping
D Motor activation delay
2.4
RIGID TAPPING
2.4.1
Start–up Procedure