
B–65160E/02
3. EXPLANATION OF
PARAMETERS
FANUC AC SPINDLE MOTOR a series
225
16i/1615 15i0
MS signal gain adjustment
6194 3374 3230 4230
6374 3594
Data unit :
Data range : –128 to +127
Standard setting : 0
Use this parameter when adjusting the amplitude of the MS signal in
the magnetic sensor method orientation.
16i/1615 15i0
Limitation of regenerative power
6195 3375 3231 4231
6375 3595
Data unit : 1%
Data range : 0 to 1000
Standard setting : Depends on the motor model.
16i/1615 15i0
Delay time until the motor power is cut off
6196 3376 3232 4232
6376 3596
Data unit : 10 ms
Data range : 0 to 1000
Standard setting : 20 (200 ms)
The motor power is cut off after stopping the motor (zero speed
detection signal SSTA = 1 is detected).
However, when the power is cut off immediately after detecting the
zero speed signal, the motor may be operated at low speed due to force
of habit.
Detect the zero speed signal and then set the time until the motor
power is cut off by this parameter.
16i/1615 15i0
Time setting during acceleration/deceleration
6197 3377 3233 4233
6377 3597
Data unit : 1 sec
Data range : 0 to 255
Standard setting : 10 (10 sec)
When the deviation between the velocity command and motor speed
exceeds the setting level, an velocity error excess alarm (AL-02)
occurs.
However, if the velocity command is changed during
acceleration/deceleration, the motor speed cannot follow it. Thus, a
velocity error excess alarm (AL-02) occurs.
In this case, set the acceleration/deceleration time for preventing
velocity error excess alarm from occurring even if there is a speed error
during the time set by this parameter. When the lathe load inertia is
large, the acceleration/deceleration time becomes longer. Thus, set the
value accordingly.