Why Choose the Pizzato NG 2D1D312D-F31 Safety Switch with Guard Locking?
The Pizzato NG 2D1D312D-F31 is an advanced NG series RFID safety switch with guard locking and integrated control devices, supplied complete with a high-coded actuator. Designed for machine guarding applications where access must remain prevented until hazardous movement or processes have stopped, it combines guard monitoring, actuator locking and operator controls within one robust industrial device.
This configuration uses D working method, meaning the actuator remains locked with the solenoid de-energised. The switch provides two safety inputs IS1-IS2 and two safety outputs OS1-OS2, together with separate signalling outputs for actuator insertion and locking status. Safety output activation mode 1 enables the safety outputs when the actuator is both inserted and locked.
The NG 2D1D312D-F31 features a metal housing, rotating head and three M20 × 1.5 threaded conduit entries. Its cover incorporates a white 1NO+1NC pushbutton and a red emergency-stop button with 2NC contacts. The included VN NG-F31 high-coding-level actuator uses RFID technology to provide high-level coded guard detection, while the enclosure provides IP65 protection according to EN 60529.
Key Advantages
- RFID-coded guard monitoring provides high-level actuator coding for enhanced resistance to manipulation.
- Integrated guard locking prevents access while hazardous machine conditions remain.
- D working method keeps the actuator locked while the solenoid is de-energised.
- Two safety inputs and two safety outputs support integration into advanced machine safety architectures.
- Separate signalling outputs provide information for actuator inserted and actuator locked states.
- Integrated white pushbutton and red emergency-stop button reduce the need for separate operator control stations.
- High actuator holding force of up to 9750 N within the NG series architecture.
- Robust metal housing and rotating head provide flexible installation on industrial guards.
Key Features
- Pizzato NG series RFID safety switch.
- Guard locking with separate coded actuator.
- VN NG-F31 high-coding-level actuator included.
- D working method: actuator locked with solenoid de-energised.
- Safety output activation mode 1: outputs active with actuator inserted and locked.
- 2 safety inputs: IS1-IS2.
- 2 safety outputs: OS1-OS2.
- O3 signalling output: actuator inserted.
- O4 signalling output: actuator locked.
- Solenoid activation through I4 or IE1-IE2 inputs.
- I3 reset input.
- Two-device integrated control cover.
- White pushbutton with 1NO+1NC contacts.
- Red emergency-stop button, turn to release, with 2NC contacts.
- Rotating switch head for flexible guard installation.
- Metal industrial housing.
- IP65 protection according to EN 60529.
Advanced Guard Locking for Machine Safety
The NG 2D1D312D-F31 combines RFID guard monitoring and electromechanical locking to supervise both the position and locked state of a machine guard. In safety output activation mode 1, the OS1 and OS2 safety outputs become active only when the coded actuator is correctly inserted and locked, allowing the machine safety system to verify that the guard is secured before hazardous operation is permitted.
The de-energised-solenoid locking principle is particularly useful where a guard must remain mechanically locked during a loss of electrical power. Integrated operator controls further simplify machine design by combining a white pushbutton and emergency-stop device with the guard-locking switch, while dedicated status outputs allow the control system to independently monitor actuator insertion and locking.
Typical Applications
- Machine guards protecting areas with hazardous run-down time.
- Robotic cells and automated manufacturing equipment.
- Packaging and processing machinery.
- Conveyor and material handling systems.
- Machine tools with rotating or high-inertia components.
- Guards protecting hot, pressurised or otherwise hazardous processes.
- Automated production cells requiring RFID-coded guard monitoring.
- Applications requiring integrated guard locking, operator control and emergency-stop functions.
