OBE1000-R2-SE3-P-L

6

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Pepperl+Fuchs Group

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Thru-beam sensor (pair)

The thru-beam sensor enables the switching points to be taught in for optimum adaptation to specific applications. This

eliminates the need for additional components such as apertures.

The sensitivity of the thru-beam sensor can be adjusted using three Teach-in methods:

Position Teach

When using this Teach-in method, the following settings are made on the thru-beam sensor:

• The gain is set to an optimum value

• The signal threshold is set to a minimum

Recommended application:

This method enables minuscule particles in the beam path to be detected, and provides exceptional positioning accuracy.

Make sure that there are no objects in the beam path and that the sensor is connected to the power supply.

1. Connect the white cable on the receiver (WH/IN) to the blue cable (BU/0 V) on the receiver.

The green and yellow LED indicators flash simultaneously at 2.5 Hz

2. Disconnect the white cable on the receiver (WH/IN) from the blue cable (BU/0 V) on the receiver.

The green and yellow LED indicators flash alternately at 2.5 Hz

3. The end of the Teach-in process is indicated when the green LED indicator lights up static and yellow LED blinks.

Two-Point Teach-In

When using this Teach-in method, the following settings are made on the thru-beam sensor:

• The gain is set to an optimum value

• The signal threshold is set in the center between the two taught signal values

1. Make sure that there are no objects in the beam path and that the sensor is connected to the power supply.

2. Connect the white cable on the receiver (WH/IN) to the blue cable (BU/0 V) on the receiver.

The green and yellow LED indicators flash simultaneously at 2.5 Hz

3. Position the object in the beam path.

4. Disconnect the white cable on the receiver (WH/IN) from the blue cable (BU/0 V) on the receiver.

The green and yellow LED indicators flash alternately at 2.5 Hz

5. The end of the Teach-in process is indicated when the green LED indicator lights up static.

Maximum Teach-In

When using this Teach-in method, the following settings are made on the thru-beam sensor:

• The gain is set to a maximum

• The signal threshold is set to a minimum

Recommended application:

Enables an object to be detected with a high excess gain. This can be useful if there is severe environmental contamination or to

achieve long operating times.

Make sure that there are no objects in the beam path and that the sensor is connected to the power supply.

6. Cover the receiver or transmitter.

7. Connect the white cable on the receiver (WH/IN) to the blue cable (BU/0 V) on the receiver.

Teach-In

Signal strength

Threshold level

t

Opt.

0

Signal strength

Threshold level

Teach-in value 1 (avg)

Contrast levels

Teach-in value 2 (avg)

t

Max.

0

t

Signal strength

Threshold level

t

Max.

0