SICK Retroreflective Photoelectric Sensor, Block Sensor, 5 m, PNP, IP66, IP67

SICK W4S-3 Glass Series Photoelectric Sensor, IP66/IP67, PNP Output Type - WLG4S-3P3232

This photoelectric sensor is a Compact retro‑reflective device intended for industrial detection tasks, especially where transparent materials pose a challenge. It employs a visible red pin‑point LED for precise light emission and single‑button teach‑in adjustment, operating from 10V DC to 30V DC and suited to harsh environments from −40°C to 60°C.

Features & Benefits

• 500μs response time enabling high‑speed switching in automation
  PNP output supporting up to 100mA load for direct interfacing
  IP66/IP67 enclosure for use in wet or dusty conditions
  Detects transparent objects using autocollimation for accuracy
  30V DC supply compatibility simplifies integration with control systems

**Applications**

• Suitable for conveyor‑transparent bottle detection in filling lines
  Ideal for pick‑and‑place presence sensing of clear components
  Used with PLC inputs requiring high‑frequency switching
  Can be used for reflector‑based part counting in assembly cells
  Suitable for inspection stations handling plastics and glass sheets

What connector and cabling options does it provide?

The sensor connects via an M8 4‑pin Interface and is supplied with a short PVC cable leading to a female M8 connector for straightforward wiring.

How is the output behaviour configured for different logic needs?

It offers light/dark switching selectable during teach‑in allowing users to choose the required switching polarity for control logic.

What immunity and protection features are incorporated in the electronics?

The circuitry includes reverse‑polarity protection, interference suppression, and output overcurrent/short‑circuit protection to safeguard connected systems.

How does the optical system support reflector use over distance?

The autocollimation principle and a 650nm LED produce a focused light spot, providing reliable detection against standard retroreflectors up to several metres.

Notes

Product details cover the whole product family. For details on the specifications for this individual product, please refer to the datasheet.