Correction factor
1
2
3
4
5
6
7....
Interpolation
point distance
P 0593
max. 250
Startposition
P 0591
Correction
interpolation
points
Interpolation point
conter clockwise correction
Interpolation point
clockwise correction
Incorrected Positionvalue (conter-clockwise rotation)
Incorrected Positionvalue (clockwise rotation)
Endposition
P 0592
Legend:
Image 6.12: Corrected position value
ID No.: 0842.26B.5-01 Date: 09.2020
ServoOne - Device Help
105
6 Encoder
NOTE
l
Parameterization is carried out in the selected user unit for the
position as integer values. It is advisable to use the same number
of correction interpolation points for the positive and negative
directions. The first and last correction values in the table must be
zero in order to avoid instability (step changes) of the actual
position value. Differing correction values for the positive and
negative directions at the same interpolation point will lead to
instability in the associated actual position value when the
direction is reversed, and so possibly to a step response
adjustment to the reference position.
l
If the correction value is greater than the position step size
P 593
[0] - ENC_ACOR_PosDelta
, discontinuities can also occur.
l
The applied correction value is to be seen as a position tracking
error, but is corrected immediately. However, this can also be
checked in user units using the scope parameter 1001 (with
smoothing) and 1003.
