Burkert Type 8793 - Manual (Page 156)

156
Auxiliary functions
DIR-Class - Description.of.the.histogram.of.the.movement.range
The histogram indicates the movement ranges of the actuator between two direction reversal points.
For this purpose the movement range between two changes in direction is divided into 10 classes.
The current position of one of the 10 classes is assigned to each scan time.
0 - 10
%
11 - 20
%
21 - 30
%
31 - 40
%
41 - 50
%
51 - 60
%
61 - 70
%
71 - 80
%
81 - 90
%
91 -
100 %
Class 1 2 3 4 5 6 7 8 9 10
Figure 90: DIR class; change in direction classes
Explanation.of.the.histogram.in.the.example
Sinusoidal progression of the actuator position:
Position
Time [t]
100 %
0 %
Figure 91: Sinusoidal progression of the actuator position
Histogram of the sinusoidal progression of the actuator position:
STOP CLEAR DIR–Class
00 : 13 : 48 72
100
Duration of histogram recording
Percentage of the change in direction class which occurred most
frequently
Number of changes in direction
It can be seen in the histogram which change in direction
class has the largest proportion of the total number of
changes in direction.
The figure in the middle of the histogram indicates what
percentage of all changes in direction is not applicable to the
most frequent change in direction class.
Conclusion to be drawn from the histogram about the behavior of the actuator:
The actuator moved for all changes in direction in the change in direction class 10 (91 - 100 %)
Figure 92: DIR class; histogram of the dwell time density for sinusoidal progression of the actuator position
The histograms will only give correct information about the behavior of the actuator when the X.TUNE
function required for the basic setting has been run.
english
Type 8792, 8793