ST DD611N2-E1T Pizzato ST D series safety sensor

Why Choose the Pizzato ST DD611N2-E1T Safety Sensor?

The Pizzato ST DD611N2-E1T is a compact and robust RFID non-contact safety sensor with high-coded actuator designed for monitoring guards, doors, covers and other movable protective devices on industrial machinery. As part of the Pizzato ST D series safety sensors, it combines digitally coded RFID recognition with electronic safety outputs to provide dependable guard-position monitoring without mechanical contact between the sensor and actuator.

This configuration provides 2 OSSD PNP safety outputs OS1-OS2 and 1 inverted signalling output O3. The inverted signalling output can provide additional connection and sensor status information to compatible control equipment, while the electronic design avoids the mechanical wear associated with conventional contact-based guard switches.

The ST DD611N2-E1T operates from a 12–24 V DC supply and features a 2 m PVC cable with an 8 × 0.34 mm² construction and connection output from the right-hand side. Its E1T high-coded RFID actuator provides an actuation distance of approximately 12 mm, while the technopolymer housing, IP67 / IP69K protection and operating temperature range of -25 to +70 °C make it suitable for demanding industrial automation applications.

Key Advantages

• Non-contact RFID safety sensing technology reduces mechanical wear and maintenance requirements.
• High-coded E1T actuator provides enhanced protection against inappropriate actuator substitution.
• 2 OSSD PNP safety outputs provide reliable electronic guard monitoring.
• Inverted O3 signalling output provides additional sensor and connection status information.
• 12–24 V DC operation suits a wide range of industrial safety control systems.
• Approximately 12 mm actuation distance provides practical tolerance for guard alignment.
• 2 m PVC cable provides convenient connection for machine installations.
• IP67 / IP69K protection supports operation in demanding and washdown-prone environments.

Key Features

• Pizzato ST D series RFID safety sensor.
• RFID coded non-contact switching technology.
• 12–24 V DC power supply.
• 2 OSSD PNP safety outputs OS1 and OS2.
• 1 inverted signalling output O3.
• E1T high-coded RFID actuator.
• Approximately 12 mm actuation distance.
• E-format actuator measuring 40 × 50 × 16 mm with front fixing.
• Integrated 2 m PVC cable.
• 8 × 0.34 mm² cable construction.
• Right-side connection outlet.
• Technopolymer housing.
• 4 LEDs for sensor status indication.
• Operating temperature from -25 to +70 °C.
• IP67 according to EN 60529 and IP69K according to ISO 20653.

Reliable Non-Contact Guard Monitoring for Industrial Automation

RFID safety sensors such as the Pizzato ST DD611N2-E1T monitor movable machine guards without requiring physical contact between the sensor and actuator. When the associated high-coded E1T actuator enters the sensor's operating zone, the two OSSD safety outputs communicate the guard condition to the associated safety controller or safety circuit, helping machinery operate only when the required safety conditions are satisfied.

The high-coded RFID actuator provides increased resistance to manipulation by allowing the sensor to recognise the appropriate actuator coding. The inverted O3 output provides additional signalling functionality, while the electronic design removes mechanical switching elements and supports reliable operation in applications involving frequent guard opening and closing. The ST D series can be used in safety systems capable of reaching PL e, Category 4 and SIL 3 when correctly designed and integrated.

Typical Applications

• Machine guard and access door monitoring.
• Industrial automation and robotic cells.
• Packaging and processing machinery.
• Conveyor and material handling systems.
• Machine tools and automated manufacturing equipment.
• Frequently operated safety guards and protective covers.
• Applications requiring inverted auxiliary signalling.
• OEM machinery and integrated functional safety systems.