ST DD511N5-D1T Pizzato ST D series safety sensor

Why Choose the Pizzato ST DD511N5-D1T ST D Series Safety Sensor?

The Pizzato ST DD511N5-D1T is an industrial RFID non-contact safety sensor designed for reliable monitoring of guards, doors and protective devices on automated machinery. Part of the Pizzato ST D series, it combines coded RFID actuator detection with redundant electronic safety outputs to provide dependable guard monitoring without mechanical contact between the sensor and actuator.

This configuration uses a D1T standard high-level coded RFID actuator with a rated operating distance of 12 mm. High-level coding means the sensor recognises its specifically associated actuator, providing increased protection against manipulation in accordance with EN ISO 14119. Non-contact sensing also eliminates mechanical switching wear, making the sensor well suited to applications involving frequent guard movements.

The ST DD511N5-D1T operates from a 12–24 V DC supply and provides two safety inputs (IS1 and IS2), two safety outputs (OS1 and OS2), one signalling output (O3) and one EDM feedback input. The N5 configuration features a 5 m PVC cable with right-side output. IP67 and IP69K protection and an operating temperature range of -25 to +70 °C support dependable use in demanding industrial environments.

Key Advantages

• Non-contact RFID safety sensor for industrial machine guarding.
• D1T high-level coded actuator provides enhanced resistance to manipulation.
• 12 mm rated operating distance provides practical installation tolerance.
• Two safety inputs and two safety outputs support integration into advanced safety architectures.
• Integrated EDM feedback input enables monitoring of external switching devices.
• 5 m PVC cable provides flexibility for machine installations requiring longer cable runs.
• IP67 and IP69K protection supports operation in demanding industrial environments.
• Non-contact operation minimises mechanical wear and maintenance requirements.

Key Features

• Pizzato ST D series RFID safety sensor.
• RFID coded non-contact switching technology.
• 12–24 V DC supply voltage.
• 2 safety inputs (IS1, IS2).
• 2 safety outputs (OS1, OS2).
• 1 signalling output (O3).
• 1 feedback input (EDM).
• D1T standard high-level coded RFID actuator.
• 12 mm rated operating distance.
• 14 mm rated release distance.
• 5 m PVC cable with right-side output.
• IP67 / IP69K environmental protection.
• 125 kHz RFID transponder frequency.
• Four LEDs provide operating and status indication.
• Supports safety performance up to PL e, Category 4 and SIL 3 when correctly integrated.

High-Coded RFID Safety Monitoring with EDM Feedback

RFID safety sensors such as the Pizzato ST D series monitor movable machine guards without requiring physical contact between the sensor and actuator. When the associated D1T actuator enters the sensor's operating range, its RFID identity is detected electronically, allowing the safety system to verify the position of the protective guard before hazardous machine functions are permitted.

The ST DD511N5-D1T also incorporates External Device Monitoring (EDM), enabling monitoring of normally closed feedback contacts from external contactors or forcibly guided relays controlled by the sensor's safety outputs. Together with two safety inputs and two redundant safety outputs, this provides flexible integration into sophisticated machine safety architectures, including compatible series-connected safety systems.

Typical Applications

• Machine guard and safety door monitoring.
• Automated production and assembly machinery.
• Robotic cells and automated manufacturing systems.
• Packaging and processing machinery.
• Machine tools and machining centres.
• Conveyors and material handling systems.
• Safety circuits incorporating external contactors or forcibly guided relays.
• Applications requiring high-coded guard monitoring.
• OEM machinery and industrial automation systems.