
B–65160E/02
3. EXPLANATION OF
PARAMETERS
FANUC AC SPINDLE MOTOR a series
227
16i/1615 15i0
Velocity loop feedforward coefficient
6205 3385 3241 4241
6385 3605
Data unit :
Data range : 0 to 32767
Standard setting : 0
Set the velocity loop feed forward coefficient when feed forward
control is executed in servo mode (rigid tap, spindle positioning).
16i/1615 15i0
Number of spindle gear teeth (HIGH) CTH1A = 0
6207 3387 3243 4243
6387 3607
Number of position detector gear teeth (HIGH) CTH1A = 0
6208 3388 3244 4244
6388 3608
Number of spindle gear teeth (LOW) CTH1A = 1
6209 3389 3245 4245
6389 3609
Number of position detector gear teeth (LOW) CTH1A = 1
6210 3390 3246 4246
6390 3610
Data unit :
Data range : 0 to 32767
Standard setting : 0
These parameters set an arbitrary gear ratio between the spindle and
position detector (position coder). These parameters are used when the
function for spindle orientation with an external one–rotation signal
switch is used (when bit 3 (PCGEAR) of parameter No. 4185 is 1).
When bit 3 (PCGEAR) of parameter No. 4185 is 0, 1 is assumed even if
0 is set for these parameters.
16i/1615 15i0
Time constant for spindle load monitor magnetic flux compensation
(MAIN side for high–speed range)
(9D00. D)
6211 3391 3247 4247
6391 3611
Data unit : 1 msec
Data range : 0 to 8192
Standard setting : 500
16i/1615 15i0
Spindle load monitor torque constant
(MAIN side for high–speed range)
(9D00. D)
6212 3392 3248 4248
6392 3612
Data unit :
Data range : 0 to 32767
Standard setting : Varies with the motor model.