
FANUC AC SPINDLE MOTOR a series
2. FUNCTION EXPLANATION
B–65160E/02
72
16i/160
15 15i
Velocity loop proportion gain on orientation (HIGH gear) CTH1A=0
6542 3042 3042 4042
6682 3182
1st–
2nd–
Velocity loop proportion gain on orientation (LOW gear) CTH1A=1
6543 3043 3043 4043
6683 3183
1st–
2nd–
Data unit :
Data range : 0 to 32767
Standard setting : 10
This parameter sets the velocity loop proportional gain for spindle
orientation.
When the CTH1A input signal is set to 0, proportional gain for the HIGH
gear is selected. When the CTH1A input signal is set to 1, proportional
gain for the LOW gear is selected.
Using these parameters, the response during orientation deceleration, as
well as, and rigidity in the orientation stop state, can be adjusted.
Set the maximum allowable values that do not cause vibration in the
orientation stop state.
16i/160
15 15i
Velocity loop integral gain on orientation (HIGH gear) CTH1A=0
6550 3050 3050 4050
6690 3190
1st–
2nd–
Velocity loop integral gain on orientation (LOW gear) CTH1A=1
6551 3051 3051 4051
6691 3191
1st–
2nd–
Data unit :
Data range : 0 to 32767
Standard setting : 10
This parameter sets the velocity loop integral gain for the spindle
orientation.
When the CTH1A input signal is set to 0, integral gain for the HIGH gear
is selected. When the CTH1A input signal is set to 1, integral gain for the
LOW gear is selected.
Rigidity in the orientation stop state is adjusted using these parameters.
To adjust the velocity loop integral gain, specify a value that is one to five
times greater than the velocity loop proportional gain set in parameter No.
4042.