B5W-LB2152-1.

**B5W-LB series Light Convergent Reflective Sensor** 

B 5 W L B 

## **Light Convergent Reflective Type for Reduced Color and Material Susceptibility Reliable Detection of Shiny, Black or Transparent objects** 

- **<Robustness of color>** 

- **-Stable detection of shiny, black or transparent objects -Unaffected by backgrounds, meaning only the intended object is sensed accurately.** 

- **<Robustness of the distance>** 

- **-A wide sensing range to allow object shifting** 

- **Robust design resistant to ambient lights** 

- **In addition to analog voltage output and 24 VDC digital output, a 12 VDC digital output type has been added to the lineup** 

- **55 mm and 10 mm sensing distances are available** 

Be sure to read Safety Precautions on page 8. 

## **Model Number Legend** 

## **B5W-LB** @ @ @ @ **-** @ 

1. 2. 3. 4. 5. 

1. Size 2. Maximum sensing 3. Power supply voltage/ distance 

1: Super miniature output 

   4. Protective structure/indicator lamp 5. Minimum number 

   - 1: Protective structure not available, of deliverable units indicator lamp not available 

- Subminiature 1: 10mm Miniature 

- 0: Analog voltage 

1: 1 piece 

- 2: Miniature 

   - 2: Protective structure available, indicator lamp not available 

- Miniature 1: Vcc24V, 1: 55mm NPN / Light-ON 

   - 4: Protective structure available, indicator lamp available 

- 2: Vcc24V, NPN / Dark-ON 

- 5: Vcc12V, NPN / Light-ON 

## **Ordering Information** ~~So~~ **Sensors (Dimensions (Dimensions** 

## **Ordering Information** 

## **Sensors (Dimensions (Dimensions**  **P.7)** 

**Sensors (Dimensions (Dimensions**  **P.7)** infrared Minimum Sensing method Appearance Size Connecting method Output type Sensing distance Power supply voltage Operating mode *2 indicator lampOperation Model deliverable number of units (Unit: pieces) 24 VDC ±10% **B5W-LB1112-1** Not available Super 12 VDC ±10% Light-ON **B5W-LB1152-1** 2 to 10 mm *1 miniature Available **B5W-LB1114-1** NPN 24 VDC ±10% Dark-ON Not available **B5W-LB1122-1** open 24 VDC ±10% **B5W-LB2112-1** collector Not available Light 12 VDC ±10% Light-ON **B5W-LB2152-1** Convergent Connector Available **B5W-LB2114-1** 1 Reflective 24 VDC ±10% Dark-ON Not available **B5W-LB2122-1** ~~Qaggai=t=~~ Miniature ~~J) SR~~ ~~**=**~~ 10 to 55 mm *1 Analog voltage 5 VDC ±10% --Not available **B5W-LB2101-1** output ~~AA~~ White paper 

- *1. 

- *2. In case of light-ON, control output is turned ON when a sensing object is detected. 

In case of dark-ON, control output is turned ON when a sensing object is not detected. 

**1** 

B 5 W L B 

|**B5W-LB series**<br>**Light Convergent Reflective Sensor**|
|---|
|**Accessories(order separately)**|
|**Connector with cable**As it is not supplied with the sensor, order as needed.|
|Note:<br>The B5W-LB2101-1 (analog output type) must be prepared by the customer according to the connector information (external dimension drawing) on Page 7.<br>**Ratings and Specifications**<br>Appearance<br>Cord length<br>Model<br>Applicable model<br>1m<br>EE-5002   1M<br>**B5W-LB1112-1**<br>**B5W-LB1114-1**<br>**B5W-LB1122-1**<br>**B5W-LB2112-1**<br>**B5W-LB2114-1**<br>**B5W-LB2122-1**<br>**B5W-LB1152-1**<br>**B5W-LB2152-1**<br>~~=~~|
|**Digital output models**|
|*1.<br>Including 10% ripple (p-p)<br>Sensing method<br>Light Convergent Reflective<br>Item   Model<br>NPN output<br>B5W-LB1112-1<br>B5W-LB1152-1<br>B5W-LB1114-1<br>B5W-LB1122-1<br>B5W-LB2112-1<br>B5W-LB2152-1<br>B5W-LB2114-1<br>B5W-LB2122-1<br>Sensing<br>distance<br>White paper<br>2 to 10 mm<br>10 to 55 mm<br>Black paper<br>3 to 8 mm<br>10 to 40 mm<br>Non-sensing distance<br>(White paper)<br>20 mm min.<br>85mm min.<br>Minimum detectable object<br>(refernce value)<br>0.05 mm dia.<br>0.15 mm dia.<br>Differential travel<br>20% max.<br>Light source (wavelength)<br>Infrared LED (850 nm)<br>Power supply voltage *1<br>24 VDC ±10%<br>12 VDC ±10%<br>24 VDC ±10%<br>24 VDC ±10%<br>12 VDC ±10%<br>24 VDC ±10%<br>Current consumption<br>15 mA max. (VCC=at maximum rated voltage)<br>20mA max. (VCC=at maximum rated voltage)<br>Operating mode<br>Light-ON<br>Dark-ON<br>Light-ON<br>Dark-ON<br>Control output<br>Load power supply voltage: maximum rated voltage, load current: 50 mA max.<br>Residual voltage; 0.8 V max. at 50 mA load current and 0.32 V at 10 mA load current,<br>Open collector output (NPN)<br>Operation indicator lamp<br>Not available<br>Available<br>Not available<br>Not available<br>Available<br>Not available<br>Response time<br>Operate/reset: 1 ms max.<br>Ambient illumination<br>Incandescent lamp: 3,000 lx max., Sunlight: 10,000 lx max.<br>Ambient temperature range<br>Operating: -10 to +60°C, Storage: -25 to +80°C (with no icing or condensation)<br>Vibration resistance<br>10 to 55 Hz, 1.5-mm double amplitude for 2 h each in X, Y, and Z directions<br>Shock resistance<br>500 m/s2for 3 times each in X, Y, and Z directions<br>Degree of protection<br>IP50 (IEC60529 standard, category 2) (not including terminals)<br>Connecting method<br>Connector models<br>Weight (unit only)<br>Approx 1.6 g<br>Approx 3.4 g<br>Material<br>Case<br>Polycarbonate (PC)<br>Lens<br>Acrylic (PMMA)<br>Cover<br>Polycarbonate (PC)<br>~~==~~|
|**2**|



**B5W-LB series** 

**Light Convergent Reflective Sensor** 

B 5 W L B 

## **I/O Circuit Diagrams** 

## **NPN output (without indicator lamp)** 

|Model|Operating<br>mode|Timing charts|Timing charts|Timing charts||Output circuit||
|---|---|---|---|---|---|---|---|
|**B5W-LB1112-1**<br>**B5W-LB2112-1**<br>**B5W-LB1152-1**<br>**B5W-LB2152-1**|Light-ON<br>ON|Incident ligh<br>No incident ligh<br>ON<br>OFF<br>Operate<br>Rese<br>Output<br>transistor<br>Load|t<br>t||M<br>Ci|3<br>2<br>1<br>Vcc<br>0 V<br>ain<br>rcuit<br>Load<br>Sensor|Terminal No.<br>Name<br>1<br>GND<br>2<br>Vout<br>3<br>Vcc|
|||||||||
||||<br><br>|||||
|||||||||
||||t|||||
|||||||||
|||||||||
|**B5W-LB1122-1**<br>**B5W-LB2122-1**|Dark-ON<br>ON|Incident ligh<br>No incident ligh<br>ON<br>OFF<br>Operate<br>Rese<br>Output<br>transistor<br>Load|t<br>t|||||
|||||||||
|||||||||
|||||||||
||||t|||||



## **NPN output (with operation indicator lamp)** 

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Model Operating mode Timing charts Output circuit<br>Sensor<br>Incident light 3 DC24 V<br>No incident light<br>Operation indicator  ON Load<br>B5W-LB1114-1B5W-LB2114-1 Light-ONON lamp (orange)Outputtransistor OFFOFFON MainCircuit 2 Terminal No.1 NameGND<br>Operate<br>Load<br>Reset 2 Vout<br>1<br>0 V 3 Vcc<br>**----- End of picture text -----**<br>


**3** 

**B5W-LB series** 

**Light Convergent Reflective Sensor** 

## **Analog voltage output model** 

##  **Absolute Maximum Ratings Exterior Specifications** 

|Item|Symbol|Rated value|Unit|Remarks|
|---|---|---|---|---|
|Power supply<br>voltage|Vcc|5.5|V|4. Vcc - 2. GND|
|Input pulse<br>voltage *1|Vp|5.5 *2|V|1. Pulse - 2. GND|
|Operating<br>temperature|Topr|-10 to 60|°C|With no icing or<br>condensation|
|Storage<br>temperature|Tstg|-25 to 80|°C||



##  **Exterior Specifications** 

|Connecting<br>method|Weight (g)|Material|Material|
|---|---|---|---|
|||Case|Lens|
|Connector|Approx 3.2 g|Polycarbonate (PC)|Acrylic (PMMA)|



*1. DC voltage is not covered by warranty. 

*2. Pulse width: 800 μ s, frequency: 500 Hz 

##  **Electrical and Optical Characteristics (Ta= 25°C, Vcc= 5.0 V)** 

||Value||
|---|---|---|
||Item<br>Symbol<br>Unit|Condition|
||MIN.<br>TYP.<br>MAX.||
||Operating voltage<br>Vcc<br>4.5<br>5.0<br>5.5<br>V|---|
||Operating input<br>pulse voltage<br>Vp<br>3.0<br>---<br>5.5<br>V|---|
||Maximum output voltage<br>Forward voltage<br>Vomax<br>---<br>3.3<br>---<br>V|---|
||Sensing distance<br>(Black paper)<br>Lrange<br>10<br>---<br>40<br>mm|Black paper,<br>Vo≥70 mV|
||Sensing distance<br>(White paper)<br>Lrange<br>10<br>---<br>55<br>mm|White paper,<br>Vo≥70 mV|
|B<br>5<br>W<br>-<br>L<br>B<br>* Frequency = 500 Hz (duty = 40%), input voltage = 5.0 V<br>Output voltage without reflector = 0 mV<br>Specified reference plane and mounting surface are as shown Below<br>Non-sensing distance<br>(White paper)<br>L<br>85<br>---<br>---<br>mm<br>White paper,<br>Vo<30 mV<br>[Reflective object]<br>white paper and black paper<br>[Reflective object]<br>white paper<br>Referenceplane<br>Mounting plane<br>Sensing distance<br>Non-sensing distance<br>~~aa~~|||



## **Analog voltage output** 

Model Output circuit 4 : VCC 3 : VOUT Terminal No. Name **B5W-LB2101-1** 2 : GND 1. Pulse 1 : Pulse 2. GND 3. Vout 4. Vcc f ~~bp~~ O ~~fe~~ 

**4** 

**B5W-LB series** 

**Light Convergent Reflective Sensor** 

B 5 W L B 

## **Engineering Data (Reference Value)** 

## **Distance Characteristics for Various Reflective Objects** 

## **B5W-LB1** @ 

## **B5W-LB2** @ 

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30<br>25<br>20<br>15<br>10<br>5<br>0<br>Material<br>Sensing distance (mm)<br>White  paper Black  paper Acrylic plateplate Mirror Black  carpet Glossy blackmaterialmaterial Wood  floor<br>**----- End of picture text -----**<br>


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30 100<br>90<br>25<br>80<br>70<br>20<br>60<br>15 50<br>40<br>10<br>30<br>20<br>5<br>10<br>0 0<br>Material Material<br>Operating Range (Left and Right)<br>B5W-LB1 @ B5W-LB2 @<br>3 8<br>X<br>X<br>2 Y 6 Y<br>4<br>1<br>2<br>0 0<br>0 20 40 60 80<br>0 5 10 15<br>-2<br>-1 Dist ance X Distance X<br>(mm) -4 (mm)<br>-2<br>-6<br>Sensing object; White paper Sensing object; White paper<br>-3 -8<br>Operating Range (Up and Down)<br>B5W-LB1 @ B5W-LB2 @<br>3 8<br>X X<br>6<br>2 Y Y<br>4<br>1<br>2<br>0 0<br>0 5 10 15 0 20 40 60 80<br>-1 Dista nce X -2 Distance X<br>(mm) -4 (mm)<br>-2<br>-6<br>Sensing object; White paper Sensing object; White paper<br>-3 -8<br>Sensing distance (mm) Sensing distance (mm)<br>White  paper Black  paper Acrylic plateplate Mirror Black  carpet Glossy blackmaterialmaterial Wood  floor White  paper Black  paper Acrylic plate Mirror Black  carpet Glossy blackmaterial Wood  floor<br>Distance Y (mm) Distance Y (mm)<br>Distance Y (mm) Distance Y (mm)<br>**----- End of picture text -----**<br>


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3<br>X<br>2 Y<br>1<br>0<br>0 5 10 15<br>-1 Dista nce X<br>(mm)<br>-2<br>Sensing object; White paper<br>-3<br>Distance Y (mm)<br>**----- End of picture text -----**<br>


## **Receiver Output-Sensing Distance Characteristics** 

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B5W-LB1 @ B5W-LB2@ (except B5W-LB2101) B5W-LB2101<br>100 White paper White paper 500 White paper<br>Black paper 100 Black paper 450 Black paper<br>400<br>350<br>10 10 300<br>250<br>200<br>Operatinglevel 1 Operatinglevel 1 150<br>100<br>50<br>0.10 5 10 15 20 0.1 0 20 40 60 80 100 0 0 20 40 60 80 100<br>Distance (mm) Distance (mm) Distance (mm)<br>Excess gain (multiple) Excess gain (multiple) Output voltage (mV)<br>**----- End of picture text -----**<br>


**5** 

**B5W-LB series** 

**Light Convergent Reflective Sensor** 

## **Spot diameter - distance characteristics** 

## **B5W-LB1** @ 

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7 L direction<br>d direction<br>6<br>5<br>4<br>3<br>2<br>d<br>1<br>L<br>0<br>0 5 10 15 20 25<br>Distance (mm)<br>Spot diameter (mm)<br>**----- End of picture text -----**<br>


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B5W-LB2 @<br>12<br>L direction<br>d direction<br>10<br>8<br>6<br>4<br>d<br>2<br>L<br>0<br>0 20 40 60 80 100<br>Distance (mm)<br>Spot diameter (mm)<br>**----- End of picture text -----**<br>


## **Angle characteristics (Left and right)** 

## **B5W-LB1** @ 

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B5W-LB1 @ B5W-LB2@ (except B5W-LB2101) B5W-LB2101<br>18 70 3500 (Sensing Distance = 30mm)<br>16<br>60 3000<br>14 Transparent Transparent<br>50 White paper 2500 White paper<br>12<br>10 40 2000<br>8 30 1500<br>6  Inclination  Inclination<br>20 1000<br>4<br>2  Inclination TransWhite paperparent 10 500<br>0 0 0<br>-20 -10 0 10 20 -20 -10 0 10 20 -20 -10 0 10 20<br>Angle (deg) Angle (deg) Angle (deg)<br>Angle characteristics (Up and down)<br>B5W-LB1 @ B5W-LB2@ (except B5W-LB2101) B5W-LB2101<br>18 70 3500 (Sensing Distance = 30mm)<br>16 60 3000<br>B 14 Transparent<br>5 50 2500 White paper<br>W 12<br>BL 108 4030  Inclination 20001500 Inclination<br>6<br>20 1000<br>4<br>2  Inclination TransWhite paperparent 10 Transparent White paper 500<br>0 0 0<br>-20 -10 0 10 20 -20 -10 0 10 20 -20 -10 0 10 20<br>Angle (deg) Angle (deg) Angle (deg)<br>Distance Y (mm) Distance Y (mm) Output voltage (mV)<br>- Distance Y (mm) Distance Y (mm) Output voltage (mV)<br>**----- End of picture text -----**<br>


**6** 

**Light Convergent Reflective Sensor** 

## **B5W-LB series** 

(Unit: mm) Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified. 

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CAD Data  marked products, 2D drawings and 3D CAD models are available. (Unit: mm) Tolerance class IT16 applies to dimensions<br>Dimensions  For CAD information, please visit our website, which is noted on the last page. in this data sheet unless otherwise specified.<br>B5W-LB1112-1  20  CAD Data<br>B5W-LB1114-1  3.4<br>B5W-LB1122-1<br>B5W-LB1152-1<br> 8.4<br> 3.2   R3.76<br>Reciever lens Emitter lens<br>(7.5 dia.)  2.6  2.6  (7.5 dia.)<br> 26<br> 20<br> 14<br> 7<br> 10<br> 13<br>[3.2 dia.]<br>Mark<br>(Brand mark, model name, Lot No. QR code  Note 2)<br> 7.3<br>Terminal No. Name<br> 6.7<br>1 GND<br>2 Vout<br>3 Vcc<br>(3) (2) (1)<br>Indicator lamp  Note 1<br>BM03B-GHS-TBT<br>manufactured by JST<br>Note 1: Types with indicator lamp only<br>Note 2: The QR Code trademark is a registered trademark of<br>DENSO WAVE INCORPORATED.<br>B5W-LB2112-1  34  CAD Data<br>B5W-LB2114-1  3.4<br>B5W-LB2122-1<br>B5W-LB2152-1  8.4<br> 3.2   R3.76<br>Reciever lens  6.1   6.1  Emitter lens<br>(7.5 dia.) (7.5 dia.)<br>B<br>5<br> 40  Mark W<br> 34  (Brand mark, model name,<br> 26.5  Lot No. QR code  Note 2) L<br>B<br> 5.4<br> 11.7  8.4<br> 15.9<br> 6<br>3.2 dia.<br>Terminal No. Name  9.75  (1) (2) (3) SM03B-GH<br>manufactured by JST<br>1 GND<br>Indicator lamp  Note 1<br>2 Vout<br>3 Vcc<br>Note 1: Types with indicator lamp only<br>Note 2: The QR Code trademark is a registered trademark of<br>DENSO WAVE INCORPORATED.<br>-<br>**----- End of picture text -----**<br>


**7** 

**Light Convergent Reflective Sensor** 

## **B5W-LB series** 

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B5W-LB2101-1  34<br> 3.4<br> 8.4<br> 3.2   R3.76<br>Reciever lens  6.1   6.1  Emitter lens<br>(7.5 dia.) (7.5 dia.)<br> 40<br> 34<br> 26.5<br> 5.4<br> 11.7  8.4<br> 15.9<br> 6<br>3.2 dia.<br>S4B-ZR  (4)<br>manufactured by JST  9.5  (1) (2) (3) Terminal No. Name<br>1. Pulse<br>2. GND<br> 6.6<br>3. Vout<br> 4.3<br>4. Vcc<br>**----- End of picture text -----**<br>


## **Safety Precautions** 

To ensure safe operation, be sure to read and follow the Terms and Conditions Agreement. 

B 5 W L B 

## **WARNING** 

**These products cannot be used in safety devices for presses or other safety devices used to protect human life. This product is designed for use in applications for sensing workpieces and workers that will not affect levels of safety.** 

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## **CAUTION** 

**This product is not designed or rated for ensuring safety of persons either directly or indirectly.** 

**Do not use it for such purposes.** 

## **Precautions for Safe Use** 

To ensure safety, observe the following precautions. 

##  **Wiring** 

## **Power supply voltage** 

Do not use the product with a voltage or current that exceeds the rated range. Applying a voltage exceeding the specifications or using an AC power supply may result in rupture or burning. 

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Vcc<br>Load<br>OUT<br>Sensor<br>GND<br>**----- End of picture text -----**<br>


## **Load Short-circuit (Digital only)** 

Do not short-circuit the load. Otherwise the product may be damaged or it may burn. 

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**----- Start of picture text -----**<br>
(Load short-circuit)<br>Vcc<br>Load<br>OUT<br>Sensor<br>GND<br>**----- End of picture text -----**<br>


## **Faulty Wiring** 

Do not miswire such as the polarity of the power supply voltage. Otherwise the product may be damaged or it may burn. 

Example 1.  Wrong polarity 

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(Load short-circuit)<br>Vcc<br>Load<br>OUT<br>Sensor<br>GND<br>Load<br>Vcc<br>OUT<br>Sensor<br>GND<br>Vcc<br>Load<br>OUT<br>Sensor<br>GND<br>**----- End of picture text -----**<br>


**8** 

**B5W-LB series** 

**Light Convergent Reflective Sensor** 

B 5 W L B 

## **Connection without Load (Digital only)** 

Do not connect the power supply to the Sensor with no load connected, otherwise the internal elements may explode or burn. Always connect a load when wiring. 

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**----- Start of picture text -----**<br>
Vcc<br>OUT<br>Sensor<br>GND<br>**----- End of picture text -----**<br>


## **AND connection** 

With an AND connection as shown in the figure below, a voltage is applied to Vcc while GND of sensor 2 is not securely grounded. A failure may occur. Do not make this kind of connection. Also an inrush current may occur in sensor 2 when sensor 1 is turned on, causing failure or malfunction. 

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Vcc Vcc<br>Load<br>OUT OUT<br>Sensor 1 Sensor 2<br>GND GND<br>**----- End of picture text -----**<br>


## **Storage and Operating Environment** 

- (1) Places where the product is not exposed to corrosive gases, such as hydrogen sulfide gas, or salty wind. 

- (2) Places where it is not exposed to direct sunlight. 

- (3) Make sure that flux, oil, or other chemicals do not adhere to the surface of the emitter and receiver. 

- (4) Do not apply a load that may deform or deteriorate the product in any circumstances. 

- (5) Store the product in a normal temperature, humidity, and pressure environment. 

- (6) The product should be used without freezing or condensation. 

- (7) Do not use the product in atmospheres or environments that exceed product ratings. 

- (8) This product does not have a water-proof structure. Therefore, do not use it in an application or environment where it will be subjected to plashes from water, oil, or any other liquid. 

## **Precautions for Correct Use** 

##  **Mounting** 

- (1) Ambient light may cause the sensor to malfunction. In such case, mount the sensor at an angle that ambient light does not enter the receiver lens. 

   - Make sure that the sensor does not affected by ambient light. 

- (2) Mount the sensor securely on a flat surface. 

- (3) Use M3 screws to secure the sensor (use together with spring washers and 6-mm-diameter flat washers to prevent screws from loosening). Use a tightening torque of 0.54 N·m max. 

- (4) Take care that nothing comes into contact with the detected part of the sensor. Damage to the sensing element will result in poor performance. 

- (5) Before using the sensor, check to make sure that it has not become loose due to vibration or shock. 

- (6) Analog output models have a potentiometer mounted on the PCB. This potentiometer is used for in-house processes by OMRON and should not be touched. 

##  **Wiring Surge Prevention** 

- (1) If there is a surge in the power supply, try connecting a Zener diode or a capacitor (with a capacitance of 0.1 to 1 μ F), depending on the operating environment. Use the sensor only after confirming that the surge has been removed. 

   - We recommend use of 30 to 35 V Zener diodes for a 24 VDC power supply, 20 to 25 V Zener diodes for a 12 VDC power supply, and 10 to 15 V Zener diodes for a 5 VDC power supply. 

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Vcc<br>OUT<br>Sensor ZD 0.1 to 1μF<br>GND<br>**----- End of picture text -----**<br>


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ZD: Zener diode<br>**----- End of picture text -----**<br>


- (2) Do not use a small inductive load, such as a relay. 

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Vcc<br>OUT D<br>Sensor<br>GND<br>Relay<br>**----- End of picture text -----**<br>


- (3) Separate the wiring for Light convergent reflective sensors from high-voltage lines or power lines. If the wiring is routed in the same conduit or duct as such lines, the Light convergent reflective sensors may malfunction or may be damaged by inductive interference. 

- (4) For the digital type, make sure that the connectors are securely locked. 

**9** 

**Light Convergent Reflective Sensor** 

## **B5W-LB series** 

##  **Handling during Wiring** 

- (1) If a force is applied to the connection area between the terminal and connector by bending or pulling the cable after the wiring is completed, the connector contact part or connection area with the cable may be damaged, resulting in contact failure. Make sure that a stress (external force) as shown in the figure below is not applied to the connection area between the terminal and connector when routing and connecting cables or harnesses. 

- (2) Do not perform cord wiring when power supply voltage is applied. Doing so may result in breakage. 

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External force<br>External force<br>External force<br>**----- End of picture text -----**<br>


##  **Design** 

## **Light Convergent Reflective Sensor** 

A modulated-light type of light convergent reflective sensor is used. When designing, give proper consideration to the power supply and cable lengths used. 

Light convergent reflective sensors are more easily affected than the sensors with Nonmodulated Light. 

## **Reasons for Interference from Power and Cable Length on the sensors with Modulated Light** 

An LED emitter is pulse-lighted to produce modulated light. A large current momentarily flows to the sensors in sync with this pulse timing. This causes a pulsating consumption current. A photoelectric sensor incorporates a capacitor with sufficient capacity, and is virtually unaffected by the pulse of the consumption current. With a small sensor, however, it is difficult to have a B 5 capacitor with a sufficient capacity. Accordingly, when the cable W length is long or depending on the type of power source, it may L become impossible to keep up with the pulse of the consumption B current and operation may become unstable. 

## **Countermeasures** 

## **Adding a Capacitor** 

- Attach a capacitor of 10 μ F min. to the wires as close as possible to the Sensor. (Use a capacitor with a dielectric strength that is at least twice the Sensor's power supply voltage. Do not use tantalum capacitors. A short-circuit may cause the capacitor to ignite due to the large current flow.) 

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Emitter Vcc<br>(LB)<br>Main  OUT 10 μF Power<br>circuit min. supply<br>GND<br>Current<br>**----- End of picture text -----**<br>


## **<Cable Length>** 

- Design the configuration so that the maximum total cable length for the Photomicrosensor with Modulated Light is 2 m. 

- When using a cable longer than 2 m, attach a capacitor (e.g., an aluminum electrolytic capacitor) with a capacity of 10 μ F min. to the wires. The distance between the terminal and the capacitor must be within 2 m. 

- Make sure that the total cable length is no longer than 5 m. To use a cable length longer than 5 m, use a PLC or other means to read the sensor output and then transmit the signals using a PLC's communications. 

- Although cables are capable of being extended longer than 5 m, performance is likely to be affected by noise interference from adjacent cables and other devices. 

- Voltage drops due to the resistance of the cable material itself will also influence performance. Therefore, factors, such as the difference in voltage between the end of the cable and the sensor and noise levels, must be given full consideration. 

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Vcc<br>Capasitance of<br>Sensor 10 μF min.<br>0 V<br>Extension cable<br>2 m max.<br>**----- End of picture text -----**<br>


## **Countermeasures for Switching Power Supplies** 

- Take either of the following countermeasures as required if connecting a sensor to a switching power supply. 

1. Attach a capacitor of 10 μ F min. to the wires as close as possible to the sensor. (Use a capacitor with a dielectric strength that is at least twice the sensor's power supply voltage. Do not use tantalum capacitors. A short-circuit may cause the capacitor to ignite due to the large current flow. Do not use tantalum capacitors. A short-circuit may cause the capacitor to ignite due to the large current flow.) 

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Vcc<br>Capasitance of<br>Sensor 10 μF min.<br>0 V<br>Extension cable<br>2 m max.<br>**----- End of picture text -----**<br>


2. Connect to the 0-V line of the power source or connect to the power source via a capacitor of approximately 0.47 μ F to reduce the impedance of the mounting base to prevent inductive noise from entering the mounting base. Or, connect by way of a capacitor (approx. 0.47 μ F). 

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Sensor +V<br>C G Switching<br>Mounting  (0.47 μF) 0V Power Supplies<br>base<br>**----- End of picture text -----**<br>


3. Connect the noise filter terminal (neutral terminal to ACG) of the switching power supply to the case (FG) and 0-V terminal of the power supply. 

   - The line connected as mentioned above should be grounded or connected to the mounting base to ensure stable operation. 

(Recommended by power supply manufacturers.) 

**10** 

**B5W-LB series** 

**Light Convergent Reflective Sensor** 

B 5 W L B 

## **Countermeasures to Handle Inductive Noise** 

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Switching Power Supplies<br>+V<br>G<br>Sensor<br>0 V Input<br>Sensor Power  ACG<br>Supplies FG<br>Mounting<br>base Grounding<br>**----- End of picture text -----**<br>


4. Insert a plastic insulator of approximately 10 mm between the Sensor and the mounting base. 

## **Effects of Inductive Noise** 

- When there is inductive noise in the Sensor mounting frame (metal), the output of the sensor may be affected. In this case, ensure that there is no electrical potential difference between the sensor 0-V terminal and the sensor mounting frame, or put a 0.47- μ F capacitor between the 0-V terminal and the frame. 

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Power<br>Sensor<br>0 V supply<br>Mounting base<br>0.47 μF<br>**----- End of picture text -----**<br>


## **<Effects when the power supply is turned ON> (Digital only)** 

An output pulse may occur when the power supply is turned ON depending on the power supply and other conditions. Use the sensor in the stable ready-for-detection state reached in 100 ms after turning on the power supply. 

##  **Other** 

- (1) Do not connect or disconnect the connector while power is applied. This may result in breakage. 

- (2) Do not use the product in the following locations or under the following conditions as it may cause false operations or failures. 

1. Places with a lot of dust, powder dust, or oil mist as well as conditions constantly exposed to these materials or where they are attached 

2. Places with a high content of corrosive gases 

3. Places where water, oil, or chemicals are scattered directly or indirectly as well as conditions constantly exposed to these materials or where they are attached 

4. Outdoors or places exposed to strong light such as sunlight 

- (3) The sensor may be dissolved by exposure to organic solvents, acid, alkali, aromatic hydrocarbon, or chlorinated aliphatic hydrocarbon solvents. Do not expose the sensor to such chemicals as it may cause deterioration in the characteristics. 

- (4) Output pulses may occur when the power is turned on due to the influence of the power supply environment. Use the sensor in the stable ready-for-detection state that is reached in 100 ms after turning on the power supply. 

- (5) The protection performance such as dustproof performance of the sensor may deteriorate depending on the usage environment. 

- The degree of protection confirms that this product has undergone and passed tests conducted in OMRON under controlled conditions in a laboratory, in accordance with the test methods specified by IEC60529 and JIS C0920. 

- (6) In order to ensure the safe use of the sensor for your desired application, please perform validation of the sensor's protection structure such as dustproof structure in your usage environment. 

**11** 

Please check each region's Terms & Conditions by region website. 

**OMRON Corporation Device & Module Solutions Company** 

## **Regional Contact** 

**Americas Europe** https://components.omron.com/us https://components.omron.com/eu **Asia-Pacific China** https://components.omron.com/ap https://components.omron.com.cn **Korea Japan** https://components.omron.com/kr https://components.omron.com/jp 

© OMRON Corporation 2019-2025  All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. 

**Cat. No. E590-E1-08** 

0625 (0419)