Manual
Double Sheet Detector-series I20
Communication with the PLC
B0069991 / Rev. 1.7
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6.2.2 Signal
"Warning"
The “Warning“ signal is an
additional
output signal with fixed evaluation thresholds.
The signal becomes activated if the measurement result is below 80% or above 120% of the preset
nominal value.
Application: If the warning signal is activated though a sheet is between the sensors, measuring
problems might have been occurred:
• Sensor distance changed
• Sheet too close to the transmitter / receiver
• Wrong type of sheet
• Sensor covering not sufficient (3 × sensor diameter)
Note
If these requirements are met, but a warning signal is issued, then the
Teach-In must be repeated. The requirements from section “4.3 Sensor
mounting“ should be observed.
Note
The signal will also be activated if measurements without a sheet
(measurement value below 80%) are performed.
