１
Outline
B5W-LB Light convergent reflective type sensor User’s manual (E592)
２
Construction
The B5W-LB series consists of an optical lens (with visible light cutting filter), an infrared LED, a light receiver, and an
analog circuit, as shown below.
Output method
Analog output
Figure
Miniature type
Sensing distance
（White paper)
１０
to
５５
mm
Supply voltage
５
VDC +/- 10%
Output configuration
Light ON
Dark ON
Light ON
Dark ON
-
２４
VDC +/- 10%
２４
VDC +/- 10%
B5W-LB11series
B5W-LB21 series
Digital output
Digital output
Super miniature type
２
to
１０
mm
１０
to
５５
mm
Miniature type
This user manual describes usage guidance and special matters regarding the light convergent reflective sensor;
B5W-LB series. This document makes supplementary statements to the data sheet and the product specification
sheet. Therefore, please read this manual in order to effectively use the sensors within your actual application.
The following table shows the product line of the B5W-LB series. The digital output models are easy to use sensors
that can operate with 24 volts and can be connected to a PLC. The analog output model can be directly connected
to an A/D input terminal of a microcomputer. It is good to use for applications which require threshold level
adjustment.
Note: A variable resister is mounted in the analog output
model. Since it is for Omron’s internal use only, it
should not be touched. Otherwise the sensor will not meet
the product specification sheet.
2.1 Analog output model
The internal circuit of B5W-LB2101 is shown in the upper-right figure.
- The LED device should be driven with a pulse signal from
an external circuit.
- The threshold level for the output voltage should be
properly set according to application details such as
sensing distance, objects sensed, and so on.
Regarding recommended pulse signal and
external disturbing light canceling processing method, please
refer to page 6. Usage guidance (Circuit).
2.2 Digital output model
The internal circuit of B5W-LB2112/2122/1112/1122 is shown
in the lower-right figure. The digital output model includes an
LED pulse-driven circuit and its threshold level is fixed.
The model has an NPN open collector output.
Optical lens
Infrared LED
Photo receiver
1
