SICK Bulkscan LMS511

OPERATING INSTRUCTIONS | Bulkscan LMS511 8014829/ZNC5/2017-06-06 | SICK
Subject to change without notice
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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eld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congure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congurable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“
on page 53).
• Youcansmooththemeasuredvalueswiththeaidoftheaveraginglter(see"4.11
Averaginglter“onpage24).
How to congure the calculation of the distance to the bulk edges:
 Switch to the Edge monitoring tab.
 ConguretheMinimum bulk height for bulk edge detection.
 ConguretheAveraging lter Distance to edge, if required.
How to congure the the signaling of the bulk edges on a digital output:
 Switch to the Edge monitoring tab.
 Congure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“
on page 25).
 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.
 ConguretheSwitching delay, if required.
Note