Photoelectric Sensor is a compact, high-performance reflective sensor built for reliable non-contact object detection in automated systems. Whether you’re monitoring conveyor belt positions, verifying part presence on packaging lines, or setting up precise machine stops, this sensor delivers the accuracy and responsiveness you need.
This model operates using PNP (sourcing) output, meaning it supplies current to the connected load when triggered. This output style is widely compatible with modern PLC inputs and automation controllers, making integration into existing systems simple and efficient.
With an operating voltage range of 10–30V DC, the WL4S-3P2231 is ideal for use in standard industrial environments. It can deliver up to 200 mA of output current, enough to directly activate small relays, signal lamps, or digital input modules without the need for an intermediate controller.
Depending on the setup, this unit may function as either a diffuse reflective or retro-reflective sensor, both of which allow for non-contact sensing of objects across short to moderate distances. This enhances system reliability by reducing wear, mechanical interference, and misalignment common in contact-based sensors.
The sensor’s compact form factor and rugged design make it easy to install in tight or harsh industrial conditions. Its quick-response time and reliable triggering make it a top choice for real-time detection tasks across conveyor systems, packaging automation, robotic arms, and VFD-integrated control schemes.
Key Features
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PNP Output: Sourcing output simplifies PLC and control system integration
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10–30V DC Operation: Compatible with standard industrial power supplies
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200 mA Output Current: Drives small loads or signals directly
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Reflective Type: Likely diffuse or retro-reflective sensing method
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Compact & Durable: Ideal for tight spaces and harsh automation environments
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