
Autonics BWP20-20P Area Sensor
Autonics BWP20-20P Through-Beam Area Sensor (20 mm Pitch, PNP Output)
The Autonics BWP20-20P is a high-resolution through-beam area sensor with 20 optical axes and 20 mm pitch, providing precise and stable detection over a wide sensing height for advanced industrial automation.
The Autonics BWP20-20P is a high-resolution through-beam area sensor featuring 20 optical axes with 20 mm pitch, enabling accurate detection of small and closely spaced objects across a wide sensing height of 380 mm.
With PNP open-collector output, IP65 protection, and built-in self-diagnosis and optical axis misalignment alarms, the BWP20-20P ensures reliable and stable operation in demanding industrial environments.
Key Features
Through-beam area sensing (Emitter + Receiver)
Fine 20 mm optical pitch for high-resolution detection
20 optical axes
Sensing height: 380 mm
Long sensing distance up to 7 m
PNP open-collector output
Fast response time ≤ 10 ms
Optical axis misalignment alarm
MASTER/SLAVE interference prevention
IP65 protection (IEC standard)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | BWP20-20P |
| Sensing Method | Through-beam |
| Optical Axis Pitch | 20 mm |
| Number of Optical Axes | 20 |
| Sensing Height | 380 mm |
| Sensing Distance | 0.1 – 7 m |
| Light Source | Infrared LED (850 nm, modulated) |
| Output Type | PNP open collector |
| Operation Mode | Light ON |
| Response Time | ≤ 10 ms |
| Power Supply | 12–24 V DC |
| Current Consumption | ≤ 120 mA |
| Load Current | ≤ 100 mA |
| Protection Rating | IP65 |
| Ambient Light Immunity | Up to 100,000 lux |
| Operating Temperature | −10 to +55 °C |
Applications
High-precision object detection
Tablet, strip & blister counting
Packaging & labeling machines
Conveyor sorting systems
Assembly line automation
Material handling equipment
Package Contents
Emitter unit × 1
Receiver unit × 1
Mounting brackets (A & B)
Fixing bolts
Instruction manual
FAQs
Q1. What is the advantage of the BWP20-20P over smaller BWP20 models?
It provides a larger sensing height (380 mm) while maintaining 20 mm high-resolution detection.
Q2. Is this a safety light curtain?
No. This sensor is not certified for personnel safety.
Q3. Output type supported?
PNP open-collector output.
Q4. Can multiple BWP20 sensors be installed together?
Yes, using the MASTER/SLAVE interference prevention function.
Q5. Are M12 cables included?
No. M12 connector cables are sold separately.



