
B–65160E/02
2. FUNCTION EXPLANATION
FANUC AC SPINDLE MOTOR a series
99
(1) Parameters used for adjustment
The table below lists and describes the parameters used for
adjusting rigid tapping.
Parameter No. Description
5241 to 5244 Maximum spindle speed in rigid tapping (Depends on
the GR signal. 5244 is for the T series only.)
5261 to 5264 Acceleration/deceleration time constant in rigid tapping
(Depends on the GR signal. 5264 is for the T series
only.)
5280 to 5284 Position gain of tapping axis in rigid tapping (5280 is for
all gears. 5281 to 5284 depend on the GR signal. 5284
is for T series only.)
4065 to 4068 Spindle position gain in rigid tapping
(depends on CTH1 and CTH2 signals)
4044 to 4045 Velocity loop proportional gain in rigid tapping
(depends on CTH1 and CTH2 signals)
4052 to 4053 Velocity loop integral gain in rigid tapping
(depends on CTH1 and CTH2 signals)
4085 Motor voltage in rigid tapping
(for high speed characteristics) Specify 100.
4137 Motor voltage in rigid tapping
(for low speed characteristics) Specify 100.
4099 Delay time for motor excitation.
Specify a value around 300 to 400.
2.4.5
Adjustment Procedure