Baumer BA OADR20 - Handbuch (Seite 31)

120717_Manual_OADR20i6xx_DE_EN_V5.DOC 31/40 Baumer
18.07.12 Frauenfeld, Switzerland
5 Teaching the OADR
Every sensor is delivered with the factory setup (max. measuring range). The teach-in feature was designed
to choose a smaller range within the nominal measuring range for optimizing the resolution and linearity.
Output current, output voltage and alarm output adapt to the new range. Two positions must be taught.
•
The first teach-in position aligns with 0 V (or 4 mA) the second position aligns with 10 V (or 20 mA)
•
These teach-in positions are always just at the limit of the new range (inside the measuring range)
•
The sensor may be taught more than 10’000 times in its lifetime
•
The sensor can always be reset to its factory settings
•
The sensor may be taught using the external teach input
•
During the teach-in process the red LED provides visual feedback to the operator
•
When in running mode the red LED on the back side of the sensor indicates whether there is an object
within the measuring range or not.
Example of a taught measuring range:
Example of a reverse taught measuring range:
30 mm 130 mm
0V / 4mA
Analog out
10V / 20 mA
Example
of a
taught
output
curve
LED
Standard output
curve
30 mm 130 mm
0V / 4mA
Analog out
10V / 20mA
Example of
a reversed
output
curve
LED
Standard output
curve