Interface A2, Release Date: 02.03.2022
Page 45
LVMC User Manul A2 - 499.027.82
OPTRONIC AG
SWITZERLAND
Unteregger Strasse 53
CH-9403 Goldach
Phone: +41 (0)71 844 02 00
Fax:
+41 (0)71 844 02 10
e-mail: [email protected]
web: www.optronic.ch
“Each channel separately, when object is leaving the sensing area”:
Each channel works separately, the channel reports detection when the object is
leaving the sensing area.
„All channels combined, manual mode, when object is leaving the sensing area”:
When the object leaves the sensing area, the channel that has set the highest min-
imum size among the channels that have detected the object is selected. If this
highest minimum size is set for more than one of the channels that have detected
the passing object, then the channel with the lowest channel number is selected.
“All channels combined, automatic mode, when object is leaving the sensing ar-
ea”:
When the object leaves the sensing area, the channel that has the highest mini-
mum size among the channels that have detected the object is selected. If this
highest minimum size is set for more than one of the channels that have detected
the passing object, then the channel with the lowest channel number is selected.
For each channel, the minimum area an object must have so that it is detected by
this channel, and, if enabled, the gap suppression time are automatically deter-
mined and contiguously adjusted. In automatic mode, it is expected that only one
object type is passing the sensing area. The task is to filter out faulty objects with
an area deviating from the standard. Therefore, the LVMC contiguously learns by
use of the collected information on the objects that are passing the sensing area.
For each channel, parameter “Minimum Area” and, if enabled, the gap suppression
time are automatically and contiguously calculated. The values entered in param-
eters “Minimum Area” and “Gap Suppression Time” of channel 1 are taken as
lower limits for the automatically determined corresponding values of channels 2
to 4. Channel parameters “Minimum Size”, “Minimum Passing Time”, and “Mini-
mum Expected Passing Time” are automatically set to the same values for all
channels. Therefore, they can only be entered for channel 1.
Two methods of data collection are available: Using all objects that passed the
sensing area since the automatic mode has been started, or rolling over a given
quantity of objects which have last passed the sensing area. The rolling mode
compensates changes that happen over time, which may be desired or unwanted.
The meaning of each channel is predefined:
o
Channel 1 counts objects that are classified as too small.
o
Channel 2 counts objects with correct area.
o
Channel 3 serves to count objects that are classified as too large,
or to count two correct objects that follow too close and therefore
pass the sensing area without a gap.
o
Channel 4 serves to count objects that are classified as too large,
or to count three correct objects that follow too close and therefore
pass the sensing area without a gap.