
5.FUNCTION DESCRIPTIONS FANUC AC SPINDLE MOTOR αi series B-65280EN/05
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15
i 16i 30i
3521 4521 4521
Maximum amplitude in dual position feedback [in servo mode]
Unit of data : 1 pulse unit (=360/4096 degrees)
Valid data range : 0 to 4095
Standard setting value : 0
This parameter sets a maximum amplitude in dual position feedback in
the servo mode (rigid tapping/spindle positioning).
If an error between the position in the semi-closed loop and the
position in the closed loop exceeds the setting, correction clamping
occurs.
If "0" is set, correction clamping does not occur.
If a value not within the valid data range is set, the value is clamped to
the maximum allowable value.
NOTE
This parameter is valid with 9D50 Series M (13)
edition or later and 9D70 series C (03) edition or
later.
15
i 16i 30i
3522 4522 4522
Dual position feedback zero width [in servo mode]
Unit of data : 1 pulse unit (=360/4096 degrees)
Valid data range : 0 to 4095
Standard setting value : 0
This parameter sets a dual position feedback zero width in the servo
mode (rigid tapping/spindle positioning).
Positioning is performed so that the difference in position between the
closed loop and semi-closed loop does not exceed the pulse width
equivalent to the parameter-set value.
Set "0" first, and if an unstable condition is observed when the
machine is stopped, increase the setting.
If a value not within the valid data range is set, the value is clamped to
the maximum allowable value.
NOTE
This parameter is valid with 9D50 Series M (13)
edition or later and 9D70 series C (03) edition or
later.