
FANUC AC SPINDLE MOTOR aC series
3. EXPLANATION OF
PARAMETERS
B–65160E/02
286
16i/16
15
15i
0
Velocity loop proportional gain on orientation (HIGH) CTH1 = 0
6542 3042 3042 4042
6682 3182
Velocity loop proportional gain on orientation (LOW) CTH1 = 1
6543 3043 3043 4043
6683 3183
Data unit : –
Data range : 0 to 32767
Standard setting : Depends on the motor model
This data is used to set the velocity loop proportional gain on orientation.
When the load inertia is large, the velocity loop proportional gain can be
increased. If the hunting is occurred at the orientation stop, please increase
this parameter value. (About 2 to 10 times the standard setting)
This parameter is selected by the input signal CTH1.
16i/16
15
15i
0
Velocity loop proportional gain on servo mode (HIGH) CTH1=0
6544 3044 3044 4044
6684 3184
Velocity loop proportional gain on servo mode (LOW) CTH1=1
6545 3045 3045 4045
6685 3185
Data unit : –
Data range : 0 to 32767
Standard setting : Depends on the motor model
This data is used to set the velocity loop proportional gain on servo mode
(rigid tapping, spindle synchronization control).
When the load inertia is large, the velocity loop proportional gain can be
increased.
This parameter is selected by the input signal CTH1.
16i/16
15
15i
0
Velocity error level at the beginning velocity loop integral gain
calculation
6546 3046 3046 4046
6686 3186
Data unit : min
–1
Data range : 0 to 32767
Standard setting : 100
16i/16
15
15i
0
Velocity loop integral gain on normal operation (HIGH) CTH1=0
6548 3048 3048 4048
6688 3188
Velocty loop integral gain on normal operation (LOW) CTH1=1
6549 3049 3049 4049
6689 3189
Data unit : –
Data range : 0 to 32767
Standard setting : Depends on the motor model
This data is used to set the velocity loop integral gain on normal operation.
When the load inertia is large, the velocity loop integral gain can be
increased.
This parameter is selected by the input signal CTH1.