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Specifications
Mfr. Part #:
BW20-20
Key Attributes
Model Number:
BW20-20
Product Description
Product Overview
The D-44 BW Series Area Sensor is a high-performance through-beam type sensor designed for long-distance detection up to 7 meters. It offers a wide sensing height range and minimizes unsensing areas with its 20mm optical axis pitch. Featuring high-brightness LEDs for easy recognition from various angles and distances, this sensor includes essential functions like self-diagnosis, mutual interference prevention, and external diagnosis. Its robust IP65 protection structure makes it suitable for demanding industrial environments.
Product Attributes
- Brand: Autonics (implied by context and page numbering)
- Protection Structure: IP65 (IEC standard)
- Material: Case: aluminum, Front cover, sensing part: acrylic
- Light Source: Infrared LED (850nm modulated)
- Approvals: (specific approval not detailed)
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 | Cable | 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 | Max. 100,000lx (receiver illumination) | -10 to 55, storage: -20 to 60 | 35 to 85%RH, storage: 35 to 85%RH | 5mm, 4-wire, 300mm, M12 connector | Approx. 1.4kg |
| BW40-(P) | Through-beam type | 0.1 to 7m | Opaque material of min. 50mm | 40mm | 4 to 24 | 120 to 920mm | 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 | Max. 100,000lx (receiver illumination) | -10 to 55, storage: -20 to 60 | 35 to 85%RH, storage: 35 to 85%RH | 5mm, 4-wire, 300mm, M12 connector | Approx. 1.4kg |
Ordering Information
| Item | Optical axis pitch | Number of optical axis | Control output | Model Example |
|---|---|---|---|---|
| No mark | 20mm | 04 to 48 | NPN open collector output | BW20-08(P) |
| P | 40mm | 4 to 48 | PNP open collector output |
Example: BW20-08P
Dimensions
(Diagrams for Emitter, Receiver, Bracket A, Bracket B are present in the source but cannot be rendered as HTML tables without specific data points. The following table provides key dimensional data derived from the diagrams.)
| Model | L (mm) | A (mm) | B (mm) | Optical Axis Pitch (mm) |
|---|---|---|---|---|
| BW20-08(P) | 160 | 20 | 40 | 20 |
| BW40-04(P) | 160 | 40 | 40 | 40 |
| BW20-12(P) | 240 | 20 | 40 | 20 |
| BW40-06(P) | 240 | 40 | 40 | 40 |
| BW20-16(P) | 320 | 20 | 40 | 20 |
| BW40-08(P) | 320 | 40 | 40 | 40 |
| BW20-20(P) | 400 | 20 | 40 | 20 |
| BW40-10(P) | 400 | 40 | 40 | 40 |
| BW20-24(P) | 480 | 20 | 40 | 20 |
| BW40-12(P) | 480 | 40 | 40 | 40 |
| BW20-28(P) | 560 | 20 | 40 | 20 |
| BW40-14(P) | 560 | 40 | 40 | 40 |
| BW20-32(P) | 640 | 20 | 40 | 20 |
| BW40-16(P) | 640 | 40 | 40 | 40 |
| BW20-36(P) | 720 | 20 | 40 | 20 |
| BW40-18(P) | 720 | 40 | 40 | 40 |
| BW20-40(P) | 800 | 20 | 40 | 20 |
| BW40-20(P) | 800 | 40 | 40 | 40 |
| BW20-44(P) | 880 | 20 | 40 | 20 |
| BW40-22(P) | 880 | 40 | 40 | 40 |
| BW20-48(P) | 960 | 20 | 40 | 20 |
| BW40-24(P) | 960 | 40 | 40 | 40 |
Features
- Long sensing distance up to 7m.
- Available in 22 types with optical axis pitches of 20/40mm and sensing heights from 120 to 940mm.
- Minimizes unsensing area with 20mm optical axis pitch (BW20- models).
- High-brightness LED on Emitter and Receiver for easy recognition from side, front, and long-distance.
- Includes self-diagnosis, mutual interference prevention, and external diagnosis functions.
- Protection structure: IP65 (IEC standard).
Functions & Operation
- Operation Mode: Light ON fixed.
- Self-Diagnosis: Emitter/Receiver monitoring, direct light monitoring, over current monitoring. Operation indicator displays status.
- Interference Protection: Master/Slave function to prevent sensing errors when multiple sensors are used in parallel. Transmission direction should be opposite between 2 sets, and baffles should be installed.
- External Diagnosis: When TEST input (black) of emitter is 0V, emitting stops, and the red LED of the emitter flashes. This allows external systems to check sensor operation.
- Operation Indicator: Displays status for Power ON, MASTER operation, SLAVE operation, Test input, Break of emitter, Break of light emitting element, Break of receiver, Control output overcurrent, Synchronous line noise, Emitter failure (time out), Malfunction.
Wiring & Connections
(Details on Input/Output Circuits, Operation Indicator, and Connections are provided in the source text but are best represented visually or with specific diagrams not reproducible here. The following table summarizes connection points.)
| Pin No. | Cable Color (Emitter/Receiver) | Emitter Function | Receiver Function |
|---|---|---|---|
| 1 | Brown | 12-24VDC | 12-24VDC |
| 2 | White | SYNC | SYNC |
| 3 | Blue | 0V | 0V |
| 4 | Black | TEST (M/S) | OUT |
Connecting Cables: Sold separately (e.g., CID4-3T, CID4-5T for Emitter; CID4-3R, CID4-5R for Receiver).
Troubleshooting
| Cause | Troubleshooting |
|---|---|
| Not operating | Supply the rated power. Check wiring for incorrect connection or disconnection. Use within the rated sensing distance. |
| Not operating sometimes | Remove dirt from the sensor cover. Check connector connections. |
| Control output is OFF even though there is no target object | Use within the rated sensing distance. Remove any obstacle blocking the light path. Move away from strong electric wave or noise generators. |
| LED displays for break of light emitting element | Break of light emitting element. |
| LED displays for failure of emitter | Break of light emitting circuit. |
| LED displays for failure of receiver | Break of light receiving element. |
| LED displays for synchronous line | Synchronous line incorrect connection or disconnection. Break of synchronous circuit of emitter or receiver. |
| LED displays for control output over current | Control output line is shorted. Overload. Check rated load capacity. |
| LED displays for emitter malfunction | Emitter malfunction. Treat after checking the emitter display LED. |
Proper Usage
- Follow instructions in 'Proper Usage'.
- Use 12-24VDC power supply that is insulated and limited voltage/current or Class 2, SELV.
- Use the product 1 second after supplying power. If using separate power supplies, power the sensor first.
- When using a switching mode power supply, ground F.G. terminal and connect a condenser between 0V and F.G. terminal to remove noise.
- When connecting a DC relay or other inductive load, remove surge using diodes or varistors.
- Wire as short as possible and keep away from high voltage lines or power lines to prevent surge and inductive noise.
- Suitable for: Indoors (within rated environment conditions), Altitude max. 2,000m, Pollution degree 2, Installation category II.
2411220420_Autonics-BW20-20_C17675331.pdf
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