Baumuller b maXX BM2500, Руководство по эксплуатации

Страница: 542 / 822

Operating Modes
Parameter manual b maXX BM3000
Document no.: 5.12001.07 Baumüller Nürnberg GmbH
542
of 820
4.8
121.15
Modulo revolutions
Modulo value in complete revolutions.
This parameter defines the point in which the revolutions of the Modulo position should
overflow ("turnover") to 0.
The parameter is used at the calculation of the
Z
121.17
–
Modulo position actual value
as well as at the back calculation of the Modulo position set value (
Z
136.3
–
target posi-
tion) in the internal standardization at an active weighting (
Z
136.2
–
mode bit 6 = 1).
Modulo value = 1:

The revolutions at the gear output are irrelevant for the Modulo position actual value.
Modulo value = 0:

The revolutions at the gear output will be added to the Modulo position actual value with-
out modulo division. With it the Modulo function is switched off for the position actual val-
ue (
Z
121.17
–
) and the position set value (
Z
136.3
–
Target position).
The parameter Modulo revolution will be effective only if the following condition is com-
plied with:
Modulo revolutions < (2
32
-1) * Output revolutions
Z
121.14
–
/ Input revolutions
Z
121.13
–
121.16
Rotation position resolution
This parameter contains the value of the rotation position resolution and defines the value
of the rotation weighting. A value of 3600000 corresponds with a LSB value of
0.0001 degrees.
Rotation resolution = 0: Only the angle of the gear output will be transferred 1:1 in Modulo
position actual value! The revolutions at the gear output are not used and the modulo cal-
culation is not executed.
The Modulo function and the weighting for the position set value (
Z
136.3
–
Target posi-
tion) is also switched off at value 0.
An exorbitant value in the rotation position resolution can cause an unrequested overflow
in
Z
121.17
–
Modulo position actual value. Therefore the following condition applies:
Modulo revolutions * Rotation position resolution < 2
32
121.17
Modulo position actual value
The Modulo position actual value is the result of the conversion of the position actual val-
ue (actual value of the encoder for position control; see
Z
18.9
–
) using the parameters
Z
121.12
–
to
Z
121.16
–
.
The function of this parameter is activated with bit 4 of
Z
121.1
–
Positioning general
mode.
The initialization of the Modulo position actual value is executed at each encoder initial-
ization. The input value of the gear is set. based on parameter
Z
121.12
–
. This value is
multiplied with the gear factor (
Z
121.13
–
and
Z
121.14
–
) and results in the start value for
the position at encoder output. The value at the gear output is multiplied with
Z
121.16
–
Rotation position resolution in consideration of
Z
121.15
–
Modulo revolutions.