BOS R254K-UUI-RE10-S4
Photoelectric Sensors
4
Primary Device Functions (continued)
4.6
Automatic Switching Threshold Adaption
4.6.1
Description
Cleaning cycles can be extended with the help of
automatic switching threshold adaptation. The relative
sensor measurement value is continuously and
automatically adapted in proportion to the detected soiling
of the front lens or transmitter. This function can be
especially helpful when detecting highly transparent
objects to make the detection more stable with respect to
soiling and to keep it stable for a longer time.
Light
Energy
Teach-in 100 % Reference
Switching
signal
without
adaptation
Switching
signal with
adaptation
Alarm
- Soiled
Fig. 4-13:
Automatic Switching Threshold Adaption – Description
4.6.2
Process Data
Object ID
Name
0x002E (46)
Switching Threshold Adaption Alarm
0x0035 (53)
Current Receiver Level
Tab. 4-21: Automatic Switching Threshold Adaptation – Process Data
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Adapted Energy Signal
Decreasing light energy signal
– Sensor soiled
Sensor no longer switches due to soiling
Description
The Current Receiver Level referenced
against the 100 % reference falls below
the Alarm Threshold
The currently available reception level
referenced against the 100 % reference
100 % Reference
Output Switching
Threshold
Alarm Threshold
Current Receiver Level
Sensor continues to switch despite soiling
Direction
Input
Input
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