ST DD511N4-D1T Pizzato ST D series safety sensor

Why Choose the Pizzato ST DD511N4-D1T Safety Sensor?

The Pizzato ST DD511N4-D1T is an RFID non-contact safety sensor with high-coded actuator designed for monitoring guards, doors, covers and other movable protective devices on industrial machinery. Part of the Pizzato ST D series, it combines coded RFID actuator recognition with redundant electronic safety outputs to provide reliable guard-position monitoring without mechanical contact between the sensor and actuator.

The ST DD511N4-D1T configuration provides 2 safety inputs IS1-IS2, 2 safety outputs OS1-OS2, 1 signalling output O3 and 1 EDM feedback input. The EDM input supports external device monitoring, while the safety inputs and outputs provide flexible integration with compatible safety controllers and other safety devices in modern machine safety architectures.

This model features an integrated 4 m PVC cable routed from the right-hand side and uses a D1T high-coded RFID actuator. The D-format actuator provides an actuation distance of approximately 12 mm, while the robust technopolymer construction, IP67 / IP69K protection and operating temperature range of -25 to +70 °C support reliable operation in demanding industrial environments.

Key Advantages

• Non-contact RFID safety sensing technology reduces mechanical wear on frequently operated guards.
• High-coded D1T actuator provides enhanced protection against inappropriate actuator substitution and guard manipulation.
• 2 safety inputs and 2 safety outputs support flexible integration into machine safety circuits.
• Dedicated O3 signalling output provides additional sensor and guard status information.
• Integrated EDM feedback input supports supervision of compatible external switching devices.
• Approximately 12 mm actuation distance provides practical tolerance for guard alignment.
• Integrated 4 m PVC cable provides convenient wiring where additional cable reach is required.
• IP67 / IP69K protection supports installation in demanding industrial environments.

Key Features

• Pizzato ST D series RFID safety sensor.
• RFID coded non-contact switching technology.
• 2 safety inputs IS1 and IS2.
• 2 safety outputs OS1 and OS2.
• 1 signalling output O3.
• 1 EDM feedback input for external device monitoring.
• D1T high-coded RFID actuator.
• Approximately 12 mm actuation distance.
• D-format actuator measuring approximately 45 × 25 × 18 mm.
• Actuator suitable for front and side fixing.
• Integrated 4 m PVC cable.
• Electrical connection routed from the right-hand side.
• Robust technopolymer housing.
• 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 DD511N4-D1T monitor movable machine guards without requiring physical contact between the sensor and actuator. When the associated high-coded D1T actuator enters the sensor's operating zone, the electronic safety outputs communicate the guard condition to the 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 enabling recognition of the associated coded actuator. Combined with dual safety inputs, dual safety outputs, O3 status signalling and EDM feedback, the ST DD511N4-D1T provides machine builders with a flexible solution for non-contact guard monitoring and integration into high-integrity industrial safety systems.

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.
• Applications requiring external device monitoring.
• Frequently operated safety guards and protective covers.
• OEM machinery requiring high-coded RFID guard detection.