Description The Omron S3D2-CK-US Sensor Controller is a compact, multi-function logic unit designed to control and process signals from proximity and photoelectric sensors. Featuring two sensor inputs and one relay output, it supports logical AND/OR operations with integrated timing control. Its built-in one-shot, ON-delay, and OFF-delay timer functions make it ideal for synchronized detection and automation sequencing tasks. Technical Specifications Condition New/Never Used Surplus Brand Omron Category Industrial Automation and Controls Part Number S3D2-CK-US Subcategory Sensor Controllers Series S3D2 Series Type Multi-Function Sensor Controller Input Channels 2 Output Channels 1 Relay Output (1C, common shared) Logic Functions AND / OR selectable Control Output Type Relay Output (SPDT, 1C) Rated Control Voltage Typically 24 VDC (varies by system configuration) Timer Functions One-shot, ON-delay, OFF-delay Timer Range 0.1–1s / 1–10s (switchable) Additional Functions Signal Input Inversion, Synchronous Mode Switching Output Capacity Typically 250 VAC, 3 A (resistive load) Power Supply 24 VDC (nominal) Operation Mode Multi-function logic and timing control Indicators LED operation indicators (Power, Input, Output) Mounting Type Panel or DIN-rail mount (model dependent) Protection Features Overload and reverse polarity protection Certifications UL Recognized Operating Temperature Range 0°C to +55°C Storage Temperature Range -20°C to +70°C Enclosure Rating IP20 (panel-mounted) Weight Approx. 0.25 kg (0.55 lb) Information About S3D2-CK-US The S3D2-CK-US belongs to Omron’s S3D2 Series, a family of intelligent sensor controllers that enable logic processing without the need for a PLC. This unit features two input channels and one relay output, providing flexible logic combinations such as AND/OR operation for multiple sensor signals. A built-in multi-range timer (0.1–1s or 1–10s selectable) allows one-shot, ON-delay, or OFF-delay operation, offering precise timing control. It also includes signal inversion and synchronous mode switching functions, enhancing versatility in industrial automation, inspection, and machine control applications. Key Features: Dual Input Logic Controller: Supports 2 input and 1 relay output configuration. Multi-Function Logic Modes: AND/OR operation for combined sensor signal processing. Integrated Timer Control: One-shot, ON-delay, and OFF-delay functions with adjustable timing (0.1–1s / 1–10s). Signal Inversion Function: Enables reverse signal logic for flexible sensor configuration. Synchronous Mode Switching: Ensures accurate control timing between sensors and actuators. Relay Output (1C): Provides a reliable mechanical contact output for control circuits. Compact Design: Saves panel space and simplifies wiring. UL Recognized: Certified for use in industrial and safety-compliant systems. The S3D2-CK-US delivers the reliability and precision required for signal conditioning, timing, and logic control in industrial sensor networks.