
B-65270EN/05 4.SERVO FUNCTION DETAILS
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Actual speed
Position
error
60
45
100 pulses
=10µm
Fig. 4.6.9(f) Position error at LSTAC1
Set the values measured in Fig. 4.6.9 (e) and Fig. 4.6.9 (f) above in the
acceleration torsion compensation values shown below.
(Acceleration torsion amount)
2799(FS15i)
2386(FS16i)
Torsion preview control: Acceleration torsion compensation value K1
(LSTK1)
[Unit of data] Detection unit
[Valid data raneg] 0 to 32767
Set the torsion amount generated at acceleration 1 in the detection unit.
When 0 is set, compensation is disabled.
2800(FS15i)
2387(FS16i)
Torsion preview control: Acceleration torsion compensation value K2
(LSTK2)
[Unit of data] Detection unit
[Valid data raneg] 0 to 32767
Set the torsion amount generated at acceleration 2 in the detection
unit.
When 0 is set, acceleration 1 and the K1 setting are applied. (See Fig.
4.6.9(g).)
2801(FS15i)
2388(FS16i)
Torsion preview control: Acceleration torsion compensation value K3
(LSTK3)
[Unit of data] Detection unit
[Valid data raneg] 0 to 32767
Set the torsion amount generated at acceleration 3 in the detection
unit.
When 0 is set, acceleration 2 and the K2 setting are applied. (See Fig.
4.6.9(h).)
The compensation values are corrected automatically so that the
following is satisfied: K1 ≤ K2 ≤ K3. (See Fig. 4.6.9(i).)