
B–65160E/02
3. EXPLANATION OF
PARAMETERS
FANUC AC SPINDLE MOTOR a series
207
Set the hysteresis for the speed detection level.
The speed detection level is set by parameter. The speed detection signal
(SDT) changes from 1 to 0 with the set speed detection level + hysteresis
number of revolutions, and changes from 0 to 1 with the set speed
detection level number of revolutions. If this data is set to 20 min
–1
or
less, the hysteresis is automaitcally set to 20 min
–1
.
If the speed detection signal (SDT) is used in speed range switching
control, increase the data setting in situations where the switching circuit
is likely to cause chattering close to the number of revolutions for the
speed detection level.
16i/1615 15i0
Electromotive voltage phase compensation constant on
deceleration
6925 3305 3161 4161
6965 3525
Current loop proportional gain speed coefficient/current
phase delay compensation coefficient
Conventional
HRV
16i/1615 15i0
Velocity loop integral gain on Cs contouring control cutting feed (HIGH)
CTH1A = 0
6926 3306 3162 4162
6966 3526
Velocity loop integral gain on Cs contouring control cutting feed (LOW)
CTH1A = 1
6927 3307 3163 4163
6967 3527
Data unit :
Data range : 0 to 32767
Standard setting : 0
Set the velocity loop integral gain when cutting feed (G01, G02, G03) is
operating in the Cs contouring control mode.
When the data is ”0”, parameters (No. 4054 and 4055) data become valid.
16i/1615 15i0
V-phase current conversion constant
6928 3308 3164 4164
Data unit :
Data range : 0 to 32767
Standard setting : 0
16i/1615 15i0
Time constant for voltage filter used for electromotive force
compensation
6929 3309 3165 4165
6969 3529
Deceleration–time activating current change time constant/
activating current change time constant
Conventional
HRV
16i/1615 15i0
Regenerative power limit
6930 3310 3166 4166
6970 3530
Regenerative power limit for high–speed zone/regenerative
power limit/Regenerative power limit
Conventional
HRV