NG 2D1D411A-E34 Pizzato NG series safety switch with lock

Why Choose the Pizzato NG 2D1D411A-E34 Safety Switch with Guard Locking?

The Pizzato NG 2D1D411A-E34 is an advanced NG series RFID safety switch with solenoid-operated guard locking, designed for industrial machinery where access to hazardous areas must be controlled until safe conditions have been reached. The NG platform combines RFID guard detection, robust mechanical locking and redundant electronic safety outputs within a single heavy-duty safety device.

This model uses the D1D operating principle, meaning the actuator is locked with the solenoid de-energised and a sealable auxiliary release device is provided. Its electronic configuration includes two safety inputs IS1 and IS2, two safety outputs OS1 and OS2, signalling outputs for actuator insertion and locking status, solenoid-control inputs and an I3 programming/reset input.

The E34 option specifies a freely removable actuator, eliminating the standard actuator extraction force. Safety output activation mode 1 means OS1 and OS2 become active when the actuator is correctly inserted and locked, making the switch suitable for guard-locking applications where the safety system must monitor the locked condition before hazardous machine operation is permitted.

Key Advantages

• RFID guard detection provides coded actuator recognition for dependable machine safety monitoring.
• Guard-locking monitoring allows the safety system to verify both guard position and locked status.
• De-energised-solenoid locking keeps the actuator locked without continuous power to the locking solenoid.
• Sealable auxiliary release device provides a controlled means of releasing the lock when required.
• E34 freely removable actuator option eliminates the standard actuator extraction force.
• Two electronic safety outputs support direct integration with suitable OSSD-compatible safety controllers and safety PLCs.
• Separate O3 and O4 signalling outputs provide independent actuator inserted and actuator locked status information.
• NG series architecture supports sophisticated machine safety systems, including series-connected installations.

Key Features

• Pizzato NG series safety switch with RFID technology.
• Electromechanical guard locking with electronic safety monitoring.
• D1D operating principle: actuator locked with de-energised solenoid.
• Sealable auxiliary release device.
• E34 actuator extraction configuration: actuator freely removable.
• Input/output configuration 4.
• 2 safety inputs: IS1 and IS2.
• 2 safety outputs: OS1 and OS2.
• O3 signalling output: actuator inserted.
• O4 signalling output: actuator locked.
• Solenoid activation through I4 or IE1/IE2 inputs.
• I3 input: actuator programming/reset.
• Safety output activation mode 1.
• OS1 and OS2 active with actuator inserted and locked.
• 1A low cover configuration.
• Designed for use with a compatible coded NG actuator.

Advanced RFID Guard Locking for Machine Safety

The NG 2D1D411A-E34 is designed for machinery where hazardous conditions may remain after a stop command, such as equipment containing rotating components, mechanical inertia, pressure or elevated temperatures. RFID actuator detection allows the switch to monitor the guard position electronically, while the mechanical locking mechanism prevents access until the machine safety system permits release.

With mode 1 safety output activation, OS1 and OS2 are active only when the actuator is inserted and locked. This enables the machine safety controller to monitor the locked condition rather than guard closure alone. NG series switches use redundant electronics and can be integrated with suitable OSSD-input safety modules or safety PLCs, with the series architecture supporting safety systems up to PL e and SIL 3 when correctly designed and validated.

Typical Applications

• Machine guards protecting hazardous moving equipment.
• Robotic cells and automated manufacturing systems.
• Machine tools with rotating or high-inertia components.
• Packaging and processing machinery.
• Conveyor and material handling systems.
• Guards protecting pressurised or high-temperature processes.
• Automated production cells requiring monitored guard locking.
• Industrial safety systems requiring RFID guard detection and electronic safety outputs.