Photoelectric Sensors

Correct wiring is essential for stable and reliable photoelectric sensor operation. This article focuses on how to wire and connect photoelectric sensors, explaining wire functions, PNP vs NPN outputs, PLC input matching, and common wiring mistakes. Using the GM12 series through-beam photoelectric sensor as a practical example, this guide helps engineers and technicians avoid installation errors and ensure consistent detection performance.

Photoelectric sensors mainly have three common working types: Diffuse Reflective, Specular Reflective, and Through-Beam. Each type has different working principles and application scenarios, catering to various industrial needs.

Ultra-Compact Background Suppression Photoelectric Switch Sensor: A Sensor Solution for Confined Detection Environments

Photoelectric sensors are used to detect the presence of objects or changes in the surface conditions of targets. DADISICK offers a variety of photoelectric sensing modes, including through-beam, retro-reflective, and diffuse-reflective sensors.