ST DD611MK-D0T Pizzato ST D series safety sensor

Why Choose the Pizzato ST DD611MK-D0T Safety Sensor?

The Pizzato ST DD611MK-D0T is an RFID non-contact safety sensor with 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 RFID actuator detection with redundant electronic safety technology to provide dependable guard-position monitoring without mechanical contact between the sensor and actuator.

The ST DD611MK-D0T provides 2 safety inputs IS1-IS2, 2 safety outputs OS1-OS2 and 1 inverted signalling output O3. The inverted O3 output allows an external PLC to supervise the sensor's electrical connection, remaining active when the actuator is removed and the safety outputs are switched off.

This model features an integrated M12 connector positioned on the right-hand side and is supplied with a D0T low-coded RFID actuator. The D-format actuator provides an actuation distance of approximately 12 mm, while the glass-fibre-reinforced technopolymer housing, 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 and supports a long operating life.
• 2 safety inputs and 2 electronic safety outputs support flexible integration into machine safety systems.
• Inverted O3 signalling output enables additional electrical connection supervision by an external PLC.
• D0T low-coded actuator provides straightforward coded guard detection.
• Approximately 12 mm actuation distance provides useful tolerance for guard alignment.
• Right-side M12 connector simplifies installation, replacement and servicing.
• Redundant electronic architecture supports safety systems up to PL e, Category 4 and SIL 3 when correctly integrated.
• IP67 / IP69K protection supports use in harsh and washdown-prone industrial environments.

Key Features

• Pizzato ST D series RFID safety sensor.
• RFID coded non-contact switching technology.
• 2 safety inputs IS1 and IS2.
• 2 electronic safety outputs OS1 and OS2.
• 1 inverted signalling output O3.
• D0T low-coded RFID actuator.
• Approximately 12 mm actuation distance.
• D-format actuator with front and side fixing capability.
• Integrated M12 connector.
• Electrical connection positioned on the right-hand side.
• 4 status signalling LEDs for clear operating diagnostics.
• Glass-fibre-reinforced 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 DD611MK-D0T monitor movable machine guards without requiring physical contact between the sensor and actuator. When the D0T actuator enters the sensor's operating zone, the electronic safety outputs communicate the guard condition to the associated safety controller or safety PLC. The redundant electronic architecture of the ST D series enables high-integrity machine safety systems to be developed without the mechanical wear associated with conventional electromechanical guard switches.

A distinguishing feature of the ST D61 configuration is its inverted O3 signalling output. When the actuator is removed and the OS safety outputs switch off, O3 remains active, allowing an external PLC to supervise the sensor's electrical connection. ST D sensors can also be connected in series, with up to 32 sensors supported while maintaining PL e when the complete safety system is correctly designed and monitored.

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 PLC-based sensor connection supervision.
• Frequently operated safety guards and protective covers.
• OEM machinery and integrated functional safety systems.