Why Choose the Pizzato FD 22R2-L20FM2 Safety Switch with Manual Mechanical Delay?
The Pizzato FD 22R2-L20FM2 is an FD series safety switch with manual mechanical delay and separate actuator, designed for monitoring movable guards on industrial machinery. Its mechanical delayed-release principle is particularly useful where access to a hazardous area should be postponed after the machine safety circuit has been interrupted.
This configuration combines a robust metal housing with a 2NO + 1NC slow-action contact configuration and a 20-second manual mechanical delay. The long operating knob provides the delayed manual release function, helping establish a defined waiting period before the separate actuator can be withdrawn and the protected guard opened.
The FD 22R2-L20FM2 is configured for use with the VF KEYF actuator and has an M20 × 1.5 cable entry. Its mechanically operated delay makes it a practical solution for industrial machinery where hazardous movement may continue for a predictable period after the stop command and an electrically powered guard-locking system is not required.
Key Advantages
- 20-second manual mechanical delay helps prevent immediate access to hazardous machine areas.
- 2NO + 1NC slow-action contacts provide switching functionality for compatible safety circuits.
- Robust metal housing for industrial machine installations.
- Designed for operation with the VF KEYF separate actuator.
- Long delay knob provides straightforward manual operation.
- M20 × 1.5 cable entry supports standard industrial cabling arrangements.
- Mechanical delay principle does not require an electrically powered locking solenoid.
- Suitable for machinery with a predictable hazardous run-down period.
Key Features
- Pizzato FD series safety switch.
- Safety switch with manual mechanical delay and separate actuator.
- 20-second mechanical delay.
- Long operating knob.
- 2 normally open + 1 normally closed contacts.
- Slow-action switching.
- Metal enclosure.
- Designed for VF KEYF actuator.
- M20 × 1.5 threaded cable entry.
- Mechanical delayed-access operation.
- Designed for industrial guard monitoring applications.
Controlled Guard Access with a 20-Second Mechanical Delay
Some industrial machines contain rotating or moving components that do not stop immediately when power is removed or a safety stop is initiated. The Pizzato FD 22R2-L20FM2 addresses these applications by incorporating a manual mechanical mechanism that introduces a 20-second delay into the guard-release procedure.
The operator manually operates the delay mechanism before the separate actuator can be released. This provides time for machinery with a known run-down period to reach a safer condition before guard access. Because the delay is implemented mechanically, the switch can provide this functionality without an electrically powered guard-locking solenoid.
Typical Applications
- Industrial machinery with predictable hazardous run-down times.
- Rotating machinery and equipment with residual movement.
- Machine guard doors requiring mechanically delayed access.
- Packaging and processing machinery.
- Automated manufacturing and assembly equipment.
- Guarded production machinery.
- Machine tools and industrial automation systems.
- OEM machinery requiring manual delayed guard release.
