Baumer BA OADM250 Bedienungsanleitung PDF herunterladen (Seite 12)

Optische Sensoren / Photoelectric Sensors

Seite 12 www.baumer.com

Outputs: Analog output

Two sensor versions are available: with voltage output 0 … 10 V or current output 4 … 20 mA.

Alarm output (active high)

As long as there is an object within the actual - taught - measuring range and the signal received is

sufficiently strong the output is low.

If there is no object inside the actual - taught - measuring range or the signal received is of

insufficient strength or quality the alarm output is high.

Functions: 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. Output current, 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 border 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 the factory settings

• The sensor may be taught using the teach button or via the external teach input

• During the teach-in process, the red LED and the alarm output provides a feedback

• The red LED on the back side of the sensor and the alarm output indicate “run” mode if an object

is within the measuring range.

Attention:

Within 5 minutes after power on, the sensor can be taught using the button or the teach-in wire.

After 5 minutes, the teach-in button will be locked preventing accidental adjustment. The teach-in

wire is active all the time.

0.2 m 4 m

4mA

2mA

Analog out

20 mA

Example of

a taught

output

curve

Alarm out

LED

Standard

output

curve

0.2 m 4 m

4mA

2mA

Analo

g out

20 mA

Example of a

revers taught

output curve

Alarm out

LED

Standard

output

curve

0.2 m 4 m

0 V

Analog out

Example of a

revers taught

output curve

Alarm

out

LED

Standard output

curve

0.2 m 4 m

Analog out

10 V

Example of a

taught output

curve

Alarm

out

LED

Standard output

curve

1 2 ... 7 8 9 10 11 12 13 14 15

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