Baumer Troubleshooting | 11
OM20/ OM30 RS485 with Modbus RTU | V1 Operating Manual 51
11 Troubleshooting
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Error:
Sensor does not start even though the power supply is connected. The LEDs of the sensor
are switched off.
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Possible cause:
The power supply is interrupted. A short-circuit is present.
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Remedy:
Check the electrical connection of the sensor according to the connection diagram.
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Error:
No valid measured value can be recorded, the LED lights up yellow, and the laser is
switched on.
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Possible cause:
The measurement object is outside of the measurement range (MR). The measurement
range for your sensor version can be found in the data sheet.
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Remedy:
Move the measurement object into the measurement range.
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Error:
The measurement results are incorrect.
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Possible cause:
The direct reflection of the laser hits the receiver of the sensor. This happens especially with
shiny surfaces.
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Remedy:
Tilt the sensor to the side so that the direct reflection of the laser does not hit the receiver of
the sensor.
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Error:
The measured value shows faulty, erratic behavior.
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Possible cause:
Too much ambient light enters the field of view of the sensor receiver. This leads to disturb-
ing peaks on the receiver.
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Remedy:
Reduce the ambient light (e.g. with a cover).
11.1 Return and repair
In case of complaints, please contact the relevant sales company.
11.2 Accessories
You can find accessories on the website at:
https://www.baumer.com