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Summary of Contents for Omron B5W-LB21 Series
- Page 1 Light convergent reflective type sensor B5W-LB series User manual...
- Page 2 Optical lens 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.
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Page 3: Outline Dimensions
The B5W-LB series is composed of light convergent reflective type sensors utilizing Toroidal lens Omron’s original optical lenses which are combined with 4-toroidal lens designs. These sensors can provide stable sensing with a small amount of reflected light, and even black paper and transparent plates can be detected in its wide sensing range. - Page 4 5 Usage guidance (Detection) Analog and digital output models are lined up in the miniature type B5W-LB series. Both models have the same optical characteristics. In order to provide a better understanding of B5W-LB series, the analog output model will be explained first. 5.1 Analog output model The table “Electrical and Optical Characteristics”...
- Page 5 In the case of detecting small objects, or background objects existence: Ideally, the size of the actual object to be sensed must be bigger than Reference value the emitter's lighting spot. Since the B5W-LB series carries an infrared LED, the light spot is invisible. However the size of the spot can be checked according to “Spot diameter-distance characteristics”...
- Page 6 5.2 Digital output model Receiver output – sensing distance characteristics “Receiver output – Sensing distance characteristics” is the most suitable Reference value graph to understand the sensing ability of optical sensors. The vertical axis of this graph shows excess gain of receiver output. Excess gain 1 is equal to the threshold level of the sensor.
- Page 7 6 Usage guidance ( external circuit ) 6.1 Analog output model The B5W-LB series is designed to detect dark colored objects with a relatively greater LED current. Therefore, the LED should be driven by a pulsed current in order to minimize the stress imposed on the LED and to increase the life of the LED.
- Page 8 (2) Sampling timing for sensor output Considering the sensor response time, the recommended sampling timing of sensor output is shown below; -Vout(OFF): Output voltage when LED is turned off *The sampling timing for Vout(OFF) : 1,000 micro sec. after the end point of LED pulse -Vout(ON): Output voltage when LED is turned on *The sampling timing for Vout(ON): 1,600 micro sec.
- Page 9 (4) Others, reference data The influence to sensing distance by ambient temperature: The sensing distance of B5W-LB will be changed by ambient temperature. The reference data is shown below. Reference The average consumption current: In the case that this sensor is operated with the recommended input pulse, the average current consumption is approximately 32 mA.
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Page 10: Mounting Instruction
７ Mounting instruction 1. The B5W-LB series can be mounted in 2 potential ways (X,Y direction). Please refer to the data sheet for further detail. * Please use M3 screw, spring washer, and flat washer with tightening torque of 0.54 N-m. 2. -
Page 11: Frequently Asked Questions
Answer : This variable resistor is used only for our internal inspection. You should not alter its position, which is set by the factory. Otherwise the sensor will not meet Omron’s guaranteed product specifications. Instead, please set a threshold level for your specific application, using actual objects to be sensed. -
Page 12: Warranty, Limitations Of Liability
Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. - Page 13 9.3 Disclaimers Programmable Products Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
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