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Specifications
Mfr. Part #:
BW20-48
Key Attributes
Model Number:
BW20-48
Product Description
Product Overview
The D-44 BW Series Area Sensor is a high-performance through-beam type photoelectric sensor designed for long-distance detection up to 7 meters. It offers a wide range of configurations with up to 48 optical axes and sensing heights up to 940mm, minimizing unsensing areas with a 20mm optical axis pitch. Featuring high-brightness LEDs for clear visibility from multiple angles and distances, this sensor includes essential self-diagnosis, mutual interference prevention, and external diagnosis functions. Its robust IP65 protection structure makes it suitable for demanding industrial environments.
Product Attributes
- Brand: Autonics
- Product Series: BW Series
- Protection Structure: IP65 (IEC standard)
- Materials: Case: aluminum; Front cover, sensing part: acrylic
- Cable: 5mm, 4-wire, 300mm, M12 connector
- Approvals:
Technical Specifications
| Model | BW20- (P) | BW40- (P) | Unit |
|---|---|---|---|
| Sensing Method | Through-beam type | ||
| Sensing Distance | 0.1 to 7 | m | |
| Min. Sensing Target | Opaque material of min. 30mm | Opaque material of min. 50mm | |
| Optical Axis Pitch | 20 | 40 | mm |
| Number of Optical Axis | 8 to 48 | 4 to 24 | |
| Sensing Height | 140 to 940 | 120 to 920 | mm |
| Response Time | Max. 10 | ms | |
| Power Supply | 12-24VDC 10% (ripple P-P: max. 10%) | VDC | |
| Current Consumption | Emitter: max. 120mA, Receiver: max. 120mA | mA | |
| Operation Mode | Light ON fixed | ||
| Control Output | NPN or PNP open collector output Load voltage: max. 30VDC Load current: max. 100mA Residual voltage - NPN: max. 1VDC, PNP: max. 2.5VDC | ||
| Protection Circuit | Reverse polarity protection circuit, output short over current protection circuit | ||
| Light Source | Infrared LED (850nm modulated) | ||
| Insulation Resistance | Over 20M (at 500VDC megger) | ||
| Synchronization Type | Timing method by synchronous line | ||
| Self-Diagnosis | Emitter/Receiver monitoring, direct light monitoring, over current monitoring | ||
| Interference Protection | Interference protection by master/slave function | ||
| Noise Immunity | 240V the square wave noise (pulse width 1) by the noise simulator | ||
| Dielectric Strength | 1,000VAC 50/60Hz for 1 min | ||
| Vibration | 1.5mm amplitude at frequency of 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours | ||
| Shock | 500m/s (approx. 50G) in each X, Y, Z direction for 3 times | ||
| Ambient Illumination | Ambient light: max. 100,000lx (receiver illumination) | lx | |
| Ambient Temperature | -10 to 55, storage: -20 to 60 | ||
| Ambient Humidity | 35 to 85%RH, storage: 35 to 85%RH | %RH | |
| Weight (BW20-48 / BW40-24) | Approx. 2.1kg (approx. 1.4kg for unit only) | kg | |
Ordering Information
| Item | Description |
|---|---|
| Model Base | BW (Cross-beam area sensor) |
| Optical Axis Pitch | 20 (20mm), 40 (40mm) |
| Number of Optical Axis | 04 to 48 |
| Control Output | (No mark: NPN open collector output), P (PNP open collector output) |
| Example Model | BW20-08P |
Dimensions
| Model | L (mm) | A, B (mm) |
|---|---|---|
| BW20-08(P) | 160 | 20 |
| BW40-04(P) | 160 | 40 |
| BW20-12(P) | 240 | 20 |
| BW40-06(P) | 240 | 40 |
| BW20-16(P) | 320 | 20 |
| BW40-08(P) | 320 | 40 |
| BW20-20(P) | 400 | 20 |
| BW40-10(P) | 400 | 40 |
| BW20-24(P) | 480 | 20 |
| BW40-12(P) | 480 | 40 |
| BW20-28(P) | 560 | 20 |
| BW40-14(P) | 560 | 40 |
| BW20-32(P) | 640 | 20 |
| BW40-16(P) | 640 | 40 |
| BW20-36(P) | 720 | 20 |
| BW40-18(P) | 720 | 40 |
| BW20-40(P) | 800 | 20 |
| BW40-20(P) | 800 | 40 |
| BW20-44(P) | 880 | 20 |
| BW40-22(P) | 880 | 40 |
| BW20-48(P) | 960 | 20 |
| BW40-24(P) | 960 | 40 |
Features
- Long sensing distance up to 7m.
- Wide range of product types: 22 models 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).
- Operation mode: Light ON fixed.
- Control output: NPN or PNP open collector output.
- Mounting brackets (A & B) included.
Wiring and Connections
| 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 (CID4-3T/5T/7T/10T/15T for Emitter, CID4-3R/5R/7R/10R/15R for Receiver).
Functions
- Self-Diagnosis: Emitter/Receiver monitoring, direct light monitoring, over current monitoring. Operation indicator displays diagnosis status.
- Interference Protection: Master/Slave function to prevent sensing errors when multiple sensors are used in parallel.
- External Diagnosis: Stops emitting when TEST input (black wire) is 0V, allowing external system to verify sensor operation.
Troubleshooting
| Cause | Troubleshooting |
|---|---|
| Not operating | Check power supply, cable connections, and ensure operation within rated sensing distance. Clean sensor cover if dirty. |
| Control output is OFF even though there is no target object | Ensure operation within rated sensing distance. Check for obstacles blocking the light path. Minimize exposure to strong electric waves or noise. |
| LED displays for break of light emitting element / failure of emitter | Contact Autonics Corp. |
| LED displays for failure of receiver / synchronous line noise / emitter malfunction | Check wiring, synchronous line connections, and load capacity. Contact Autonics Corp. for emitter malfunctions. |
Proper Usage
- Follow instructions in 'Proper Usage' to prevent accidents.
- Use 12-24VDC power supply that is insulated, limited voltage/current, or Class 2, SELV.
- Wait 1 second after supplying power before using the product. Supply power to the sensor first if using a separate power supply for the load.
- For switching mode power supplies, ground F.G. terminal and connect a condenser between 0V and F.G. terminal to remove noise.
- Remove surge using diodes or varistors when connecting inductive loads like DC relays.
- Keep wires short and away from high voltage or power lines to prevent surge and inductive noise.
- Suitable for indoor use (within rated environment conditions), altitude max. 2,000m, pollution degree 2, and installation category II.
2411220420_Autonics-BW20-48_C17483563.pdf
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