O P E R AT I N G I N S T R U C T I O N S |
Bulkscan LMS511
8014829/ZNC5/2017-06-06 |
S I C K
Subject to change without notice
2 2
CONFIGURABLE FUNCTIONS
4.9
Monitoring the bulk edge
The Bulkscan monitors the position of the measured bulk material on the conveyor belt
by detecting its left and right edges. The distance between the detected bulk edge and
end of the measurement field is calulated.
Left bulk edge
Minimal allowed distance
to left bulk edge
Distance between left
bulk edge and left end
of the measurement
field (angle left)
Distance between right
bulk edge and right end
of the measurement
field (angle right)
Right bulk edge
Bulk edge detec-
tion threshold
Minimal allowed distance
to right bulk edge
Fig. 6: Bulk materials monitoring
The bulk edge is detected at the point where the border of the bulk material lies above
a detection threshold. You can configure the value of this detection threshold.
The Bulkscan can monitor the distance to the bulk edge and signal on a digital output if
the value drops below a configurable minimal distance.
• If no bulk material is detected, the measured distance to both bulk edges equals the
conveyor belt width.
• Pay attention to the correct angular adjustment of the sensor to obtain meaningful
values for the distance to the belt edges (see "8.1 Teaching-in the reference contour“
•
You can smooth the measured values with the aid of the averaging filter (see "4.11
Averaging filter“ on page 24).
How to configure the calculation of the distance to the bulk edges:
Switch to the
Edge monitoring
tab.
Configure the
Minimum bulk height for bulk edge detection
.
Configure the
Averaging filter Distance to edge
, if required.
How to configure the the signaling of the bulk edges on a digital output:
Switch to the
Edge monitoring
tab.
Configure the minimum distance to the left and to the right from which a warning is
issued (
Warn if closer than
).
Switch to the
Interfaces
tab
Click on
Digital outputs
to open the
Digital outputs
tab (see "4.13 Digital outputs“
Select the assignment
Information/Warnings
for the required output
Select the required
Warning
(
All, Bulk edge left or Bulk edge right
)
Select the required
Logic
.
Configure the
Switching delay
, if required.
Note
