VA Motion Controller Programming Manual
281
Lead lead, the distance
traveled by the lead screw
Unit: per unit
When Disc_Circumference is 0, the default is the transmission terminal screw.
Set the lead of the terminal drive screw. When the reduction ratio numerator/reduction ratio
denominator = 1/2, it indicates the distance that the servo motor rotates two turns of the screw
sub-assembly.
Disc_Circumference
(Disc perimeter)
Disk perimeter terminal
Unit: unit
When Disc_Circumference not zero, Screw_Lead invalid, a disk drive default terminal
Set the circumference of the terminal transmission disc. When the deceleration ratio
numerator/reduction ratio denominator = 1/2, it indicates that the arc length of the servo motor
rotating two turns is its circumference.
Closed_Loop_Scaling
(Double-loop
coefficient)
Double closed loop
coefficient, number of
motor pulses per meter of
terminal mechanism /
number of pulses per meter
of external encoder, if there
is no external encoder, this
parameter is set to 1.0.
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