Precise obstacle detection sensor Autonics BWC40-20H with 3 point cross beam netting and long sensing distance
Product Overview
The BWC Series Cross-Beam Area Sensor is designed for precise obstacle detection with a minimized blind zone achieved through a 3-point cross-beam netting method. It offers a long sensing distance of 1 to 7 meters and a wide selection of models with varying optical axis counts (4 to 20), pitches (40, 80mm), and sensing widths (120 to 1,040mm). Key features include built-in interference protection, self-diagnosis functions that monitor for front screen contamination and optical axis obstruction, and conspicuous high-luminance indicators for easy status checks. This sensor is suitable for various environments, including subway platform screen doors (PSD) and meets Korean Railway Standard (KRS) conditions for specific models. Its robust IP67 protection structure ensures reliability in diverse conditions.
Product Attributes
- Brand: BWC Series
- Protection Structure: IP67 (IEC standard)
- Certifications: KRS SG 0068 Approval
- Material: Case: Aluminum, Sensing part and indicator: Acrylic
- Cable: 5mm, 4-wire, 300mm, M12 connector
Technical Specifications
| Model | BWC40-H / HD | BWC80-14H / HD |
|---|---|---|
| Sensing Type | Through-beam type | |
| Sensing Distance | 1.0 to 7.0m | |
| Sensing Target | Opaque material of min. 50mm | Opaque material of min. 90mm |
| Optical Axis Pitch | 40mm | 80mm |
| Number of Optical Axes | 4/10/12/16/18/20 | 14 |
| Sensing Height | 120 to 760mm | 1,040mm |
| Beam Pattern | 3-point cross-beam netting type | |
| Response Time | Max. 50ms | |
| Power Supply | 12-24VDC 10% (ripple P-P: max. 10%) | |
| Current Consumption | Max. 100mA | |
| Light Source | Infrared LED (850nm modulated) | |
| Operation Mode | Light ON / Dark ON | Light ON / Dark ON |
| Control Output | NPN open collector output Load voltage: max. 30VDC Load current: max. 100mA (self-diagnosis output: max 50mA) Residual voltage: max. 1VDC | |
| Protection Circuit | Reverse power polarity, output short over current protection circuit | |
| Insulation Resistance | Over 20M (at 500VDC megger) | |
| Synchronization Type | Timing method by synchronous cable | |
| Self-Diagnosis | Transmitted-received light monitoring, direct light monitoring, output circuit monitoring, self-diagnosis output (checking whether there is contamination on the front screen, or any obstacle on optical axis) | |
| Interference Protection | Interference protection by frequency changing setting | |
| Noise Immunity | 240V the square wave noise (pulse width: 1s) by the noise simulation | |
| 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 (received light side illumination) | |
| Ambient Temperature | -10 to 55, storage: -20 to 60 | |
| Ambient Humidity | 35 to 85%RH, storage: 35 to 85%RH | |
| Weight (approx.) | 2.1kg (1.7kg for unit only) (based on BWC80-14H) | |
| Dimensions (L x A, B) | BWC40 models: 160 x 40mm (for 04H/HD), 400mm (for 10H/HD), 480mm (for 12H/HD), 640mm (for 16H/HD), 720mm (for 18H/HD), 800mm (for 20H/HD) | BWC80-14H/HD: 1120 x 80mm |
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