Product Overview
The D-44 BW Series Area Sensor is a through-beam type photoelectric sensor designed for long-distance detection up to 7 meters. It offers a wide range of configurations with 22 product types, featuring optical axis pitches of 20mm or 40mm and sensing heights from 120mm to 940mm. The 20mm optical axis pitch minimizes unsensing areas, making it ideal for detecting smaller objects. High-brightness LEDs on both the emitter and receiver ensure easy recognition from multiple angles and distances. The sensor includes essential functions such as self-diagnosis, mutual interference prevention, and external diagnosis, along with an IP65 protection structure for robust operation in industrial environments.
Product Attributes
- Brand: Autonics (implied by contact information and product numbering convention)
- Protection Structure: IP65 (IEC standard)
- Material: Case: aluminum, Front cover, sensing part: acrylic
- Light Source: Infrared LED (850nm modulated)
- Approvals:
Technical Specifications
| Model | Sensing Method | Sensing Distance | Min. Sensing Target | Optical Axis Pitch | Number of Optical Axis | Sensing Height | Response Time | Power Supply | Current Consumption | Operation Mode | Control Output | Protection Circuit | Insulation Resistance | Synchronization Type | Self-Diagnosis | Interference Protection | Noise Immunity | Dielectric Strength | Vibration | Shock | Ambient Illumination | Ambient Temperature | Ambient Humidity | Weight (Unit Only) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BW20-(P) | Through-beam type | 0.1 to 7m | Opaque material of min. 30mm | 20mm | 8 to 48 | 140 to 940mm | Max. 10ms | 12-24VDC 10% (ripple P-P: max. 10%) | Emitter: max. 120mA, Receiver: max. 120mA | Light ON fixed | NPN or PNP open collector output Load voltage: max. 30VDC Load current: max. 100mA Residual voltage - NPN: max. 1VDC, PNP: max. 2.5VDC | Reverse polarity protection circuit, output short over current protection circuit | Over 20M (at 500VDC megger) | Timing method by synchronous line | Emitter/Receiver monitoring, direct light monitoring, over current monitoring | Interference protection by master/slave function | 240V the square wave noise (pulse width 1) by the noise simulator | 1,000VAC 50/60Hz for 1 min | 1.5mm amplitude at frequency of 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours | 500m/s (approx. 50G) in each X, Y, Z direction for 3 times | Ambient light: max. 100,000lx (receiver illumination) | -10 to 55, storage: -20 to 60 | 35 to 85%RH, storage: 35 to 85%RH | Approx. 1.4kg |
| BW40-(P) | Opaque material of min. 50mm | 40mm | 4 to 24 | 120 to 920mm | Approx. 1.4kg | |||||||||||||||||||
| BW20-48(P) | Approx. 2.1kg (approx. 1.4kg) | |||||||||||||||||||||||
| BW40-24(P) | Approx. 2.1kg (approx. 1.4kg) | |||||||||||||||||||||||
Dimensions
Refer to diagrams for Emitter and Receiver dimensions, including optical axis, optical axis pitch, and overall size. Mounting brackets A and B are also illustrated.
Wiring and Connections
Details provided for NPN and PNP open collector output circuits. Includes wiring connections for Emitter and Receiver using M12 connectors, with pin assignments for power, sync, 0V, and test/output. Connecting cables are sold separately.
Operation Indicator
| Indicator | Color | Status |
|---|---|---|
| POWER | Green | Stable light ON |
| TEST (M/S) | Red | Stable light OFF |
| (Emitter) | Yellow | Unstable light ON |
| (Receiver) | Red | Stable light OFF |
troubleshooting
| Troubleshooting | Cause | Solution |
|---|---|---|
| Not operating | Power supply | Supply the rated power. |
| Incorrect cable connection or disconnection | Check the wiring. | |
| Rated connection failure | Use it within rated sensing distance. | |
| Not operating sometimes | Pollution by dirt of sensor cover | Remove dirt by soft brush or cloth. |
| Connector connection failure | Check the assembled part of the connector. | |
| Control output is OFF even though there is no target object. | Out of rated sensing distance | Use within the rated sensing distance. |
| There is an obstacle to cut off the light emitted between emitter and receiver | Remove the obstacle. | |
| There is a strong electric wave or noise generated by motor, electric generator, high voltage line etc. | Put away the strong electric wave or noise generator. | |
| LED displays for break of light emitting element | Break of light emitting element | Contact Autonics Corp. |
| LED displays for failure of emitter | Break of light emitting circuit | LED displays for failure of emitter |
| LED displays for failure of receiver | Break of light emitting receiving element | LED displays for failure of receiver |
| LED displays for synchronous line | Synchronous line incorrect connection or disconnection | Check the wiring. |
| Break of synchronous circuit of emitter or receiver | Contact Autonics Corp. | |
| LED displays for control output over current | Control output line is shorten | Check the wiring. |
| Over load | Check the rated load capacity. | |
| LED displays for emitter malfunction | Emitter malfunction | Treat after checking the emitter display LED. |
Proper Usage
1. Follow instructions in 'Proper Usage'. Otherwise, it may cause unexpected accidents.
2. 12-24VDC power supply should be insulated and limited voltage/current or Class 2, SELV power supply device.
3. Use the product, 1 sec after supplying power. When using separate power supply for the sensor and load, supply power to sensor first.
4. When using switching mode power supply to supply the power, ground F.G. terminal and connect a condenser between 0V and F.G. terminal to remove noise.
5. When connecting a DC relay or other inductive load, remove surge by using diodes or varistors.
6. Wire as short as possible and keep away from high voltage lines or power lines, to prevent surge and inductive noise.
7. This unit may be used in the following environments: Indoors (in the environment condition rated in 'Specifications') Altitude max. 2,000m Pollution degree 2 Installation category II
2411220420_Autonics-BW20-36_C17310083.pdf
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