Why Choose the Pizzato NG 2D1D321A-F31 Safety Switch with Guard Locking?
The Pizzato NG 2D1D321A-F31 is an advanced NG series RFID safety switch with guard locking designed for monitoring and locking movable guards on industrial machinery. It combines electronically coded actuator detection, semiconductor safety outputs and solenoid-controlled locking in a robust metal housing for demanding machine-safety applications.
This model uses the D working method, meaning the actuator remains locked when the solenoid is de-energised. Its safety outputs operate in activation mode 2, so the OS1 and OS2 outputs are active when the actuator is inserted, while dedicated signalling outputs separately indicate whether the actuator is inserted and whether it is locked.
The NG 2D1D321A-F31 features a rotating head, a metal housing with three M20 × 1.5 threaded conduit entries and no integrated control device in the cover. It is supplied complete with the VN NG-F31 high-coding-level actuator and provides IP67 and IP69K protection for reliable use in demanding industrial environments.
Key Advantages
- RFID-coded guard monitoring for dependable actuator recognition.
- Guard locking helps prevent access to hazardous machine areas.
- D working method keeps the actuator locked with the solenoid de-energised.
- Activation mode 2 provides safety outputs when the actuator is inserted.
- Dedicated outputs separately indicate actuator inserted and actuator locked status.
- Supplied with a high-coding-level VN NG-F31 actuator.
- IP67 / IP69K protection supports demanding industrial and washdown environments.
Key Features
- Pizzato NG series RFID safety switch.
- Guard locking with separate actuator.
- D working method: actuator locked with de-energised solenoid.
- 2 safety inputs IS1–IS2.
- 2 safety outputs OS1–OS2.
- Activation mode 2: safety outputs active with actuator inserted.
- O3 signalling output for actuator inserted status.
- O4 signalling output for actuator locked status.
- I4 or IE1–IE2 inputs for solenoid activation.
- I3 reset input.
- Rotating head for flexible installation.
- Metal housing with three M20 × 1.5 threaded entries.
- No integrated control device in the cover.
- Supplied with VN NG-F31 high-coding-level actuator.
- IP67 according to EN 60529 and IP69K according to ISO 20653.
RFID Guard Monitoring with Monitored Locking
The NG 2D1D321A-F31 uses RFID technology to identify the coded actuator and monitor guard position without relying solely on mechanical contact. Its electronic architecture provides two safety outputs together with independent signalling outputs for actuator insertion and lock status, allowing the machine control system to distinguish between guard position and locking condition.
With activation mode 2, the safety outputs become active when the actuator is inserted, while the O4 output separately reports whether the actuator is locked. The de-energised-solenoid locking principle makes the switch suitable for machinery where a guard should remain mechanically locked until a controlled release is permitted.
Typical Applications
- Machine guard doors requiring monitored locking.
- Robotic cells and automated production systems.
- Packaging and processing machinery.
- Machine tools and manufacturing equipment.
- Conveyor and material handling systems.
- Industrial guards exposed to dust, moisture or washdown conditions.
- Machine-safety systems requiring RFID-coded guard monitoring.
