WTR1-P421S02 | SICK Multitask Photoelectric Sensor with Pneumatic Valve

SICK · Sensors & Instrumentation

Description  The SICK WTR1-P421S02 is a multitask photoelectric sensor with integrated pneumatic valve control, designed for accumulation and release control in conveyor systems. It combines photoelectric background suppression sensing with on-board pneumatic actuation to manage single accumulation and block or slug release functions. This device operates on a 21.6–27.6 V DC supply and is intended for industrial material handling applications.     Technical Specifications  Condition New/Never Used Surplus Brand SICK Category Industrial Automation Part Number WTR1-P421S02 Subcategory Multitask Photoelectric Sensors Device Type Photoelectric sensor with integrated pneumatic valve Functional Principle Photoelectric proximity sensor, background suppression Application Conveyor ZoneControl and accumulation Sensing Range 300–900 mm Light Type Infrared Light Source LED Supply Voltage 21.6–27.6 V DC Power Consumption Approx. 25 mA Switching Output PNP Switching Mode Dark switching Output Current Max. ≤ 100 mA Switching Frequency 250 Hz Connection Type M12 male connector, 4-pin Daisy Chain Cable M12 female connector, 1.2 m Integrated Valve Type 3/2-way solenoid valve Valve Medium Compressed air or neutral gases Operating Pressure Range 4–7 bar Housing Material Plastic, ABS Enclosure Rating IP54 Operating Temperature -15 °C to +50 °C Weight 175 g     Information About WTR1-P421S02 The WTR1-P421S02 is part of SICK’s WTR series, developed for ZoneControl and conveyor automation systems where precise product flow management is required. It integrates a photoelectric proximity sensor with background suppression and a 3/2-way solenoid valve for air-to-brake operation. The device supports sensing ranges from 300 mm to 900 mm using infrared LED technology and includes potentiometer-based adjustment for fine tuning. Its compact housing, daisy-chain connectivity, and pneumatic interface make it suitable for modular conveyor layouts in demanding industrial environments. Key Features: Multitask Photoelectric Sensor: Combines optical sensing and pneumatic control in one device. Integrated Pneumatic Valve: On-board air-to-brake solenoid valve for conveyor accumulation control. Background Suppression Sensing: Reliable object detection independent of background surfaces. Single Accumulation Logic: Supports single accumulation with single and block (slug) release modes. Infrared LED Light Source: Ensures stable detection over extended sensing distances. Adjustable Sensing Range: 300–900 mm with potentiometer-based sensitivity adjustment. PNP Switching Output: Compatible with standard industrial PLC and control systems. Daisy Chain Capability: Includes 1.2 m M12 cable for simplified system wiring. ZoneControl Application Ready: Optimized for conveyor and material handling automation. The WTR1-P421S02 delivers the reliability and precision required for integrated sensing and pneumatic control in industrial conveyor accumulation systems.

Brand: SICK · Category: Sensors & Instrumentation

Key features

• Multitask Photoelectric Sensor: Combines optical sensing and pneumatic control in one device.
• Integrated Pneumatic Valve: On-board air-to-brake solenoid valve for conveyor accumulation control.
• Background Suppression Sensing: Reliable object detection independent of background surfaces.
• Single Accumulation Logic: Supports single accumulation with single and block (slug) release modes.
• Infrared LED Light Source: Ensures stable detection over extended sensing distances.
• Adjustable Sensing Range: 300–900 mm with potentiometer-based sensitivity adjustment.
• PNP Switching Output: Compatible with standard industrial PLC and control systems.
• Daisy Chain Capability: Includes 1.2 m M12 cable for simplified system wiring.
• ZoneControl Application Ready: Optimized for conveyor and material handling automation.

Specifications

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