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 range of configurations with 22 product types, featuring optical axis pitches of 20mm and 40mm, and sensing heights from 120mm to 940mm. The 20mm optical axis pitch minimizes unsensing areas, making it ideal for precise detection. Both the emitter and receiver utilize high-brightness LEDs for easy recognition from any angle and distance. The sensor includes advanced functions such as self-diagnosis, mutual interference prevention, and external diagnosis, ensuring reliable operation. With an IP65 protection structure, it is suitable for demanding industrial environments.
Product Attributes
- Brand: Autonics (implied by context and page numbers)
- Product Type: Area Sensor
- Sensing Method: Through-beam type
- Protection Structure: IP65 (IEC standard)
- Material: Case: aluminum, Front cover, sensing part: acrylic
- Cable: 5mm, 4-wire, 300mm, M12 connector
- Approvals: Not explicitly stated, but implied by industrial context.
- Accessories: Bracket A (4), Bracket B (4), Bolt (8)
Technical Specifications
| Model | BW20- (P) | BW40- (P) |
| Sensing Distance | 0.1 to 7m | 0.1 to 7m |
| Min. Sensing Target | Opaque material of min. 30mm | Opaque material of min. 50mm |
| Optical Axis Pitch | 20mm | 40mm |
| Number of Optical Axis | 8 to 48 | 4 to 24 |
| Sensing Height | 140 to 940mm | 120 to 920mm |
| Response Time | Max. 10ms |
| Power Supply | 12-24VDC 10% (ripple P-P: max. 10%) |
| Current Consumption | Emitter: max. 120mA, Receiver: max. 120mA |
| 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) |
| Ambient Temperature | -10 to 55, storage: -20 to 60 |
| Ambient Humidity | 35 to 85%RH, storage: 35 to 85%RH |
| Weight (Example) | BW20-48: Approx. 2.1kg (approx. 1.4kg unit only) | BW40-24: Approx. 2.1kg (approx. 1.4kg unit only) |
Dimensions
Refer to diagrams for detailed dimensions of Emitter, Receiver, Bracket A, and Bracket B. Key dimensions include optical axis pitch, sensing height, and overall unit size.
Ordering Information
Models are specified by Optical Axis Pitch (20 or 40), Number of Optical Axis (04 to 48), and Control Output (No mark for NPN, P for PNP). Example: BW2008P.
Features
- Long sensing distance up to 7m.
- 22 types of products with varying optical axis pitches (20/40mm) and sensing heights (120 to 940mm).
- Minimizes unsensing area with 20mm optical axis pitch (BW20- models).
- High brightness LED emitter and receiver for easy side, front, and long-distance recognition.
- Includes self-diagnosis, mutual interference prevention, and external diagnosis functions.
- Protection structure IP65 (IEC standard).
Wiring and Connections
Provides details on NPN and PNP open collector output circuits, input/output circuit diagrams, and connection methods for the TEST input and MASTER/SLAVE configurations. Connecting cables are sold separately.
Troubleshooting
Offers guidance on troubleshooting common issues such as non-operation, intermittent operation, control output being OFF unexpectedly, and indicator LED displays for various fault conditions like emitter/receiver breaks, synchronous line issues, and overcurrent.
Proper Usage
Instructions for safe and effective use, including power supply requirements (12-24VDC, insulated, limited voltage/current or Class 2, SELV), power-on delay, noise reduction for switching mode power supplies, surge protection for inductive loads, and wiring best practices. Suitable for indoor use, altitude up to 2,000m, pollution degree 2, and installation category II.
2411220420_Autonics-BW20-28_C17697671.pdf
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Long distance detection through beam sensor with 20 millimeter pitch Autonics BW20-28 area sensor Images
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