PJ-F21R KEYENCE Light Curtain Fnip

Review KEYENCE Light Curtain Reciever Fnip

The Keyence PJ-F21R light curtain is a versatile and advanced safety device designed to protect machines and work areas from unintended access or intrusion. This light curtain sensor features a unique Fine Mesh Infrared Beam Interruption (FN-IP) technology that provides high-precision detection and excellent immunity to interference from surrounding lights or reflective surfaces.

The PJ-F21R model is suitable for applications requiring a protection field up to 4 meters long and 250 mm wide, with a resolution of 25 mm. It is designed to detect the presence of objects as small as 10 mm in diameter and can accommodate a maximum gap between sensors of 15 mm. This light curtain can be easily integrated into various automation systems due to its compatibility with various communication protocols, including Safety over Ethernet (SoE), Safety Relay Outputs (SRO), and Safety Input Module (SIM).

The Keyence PJ-F21R light curtain is designed for easy installation and operation. It comes with an intuitive teaching function that allows users to set up the protective field by simply waving their hand in front of the sensors. The sensors are also equipped with self-diagnostic functions, alerting users to any potential issues, ensuring continuous safety performance.

This light curtain sensor is built with robust and durable materials, ensuring long-lasting performance even in harsh industrial environments. Its IP67 protection rating makes it resistant to water and dust, and its compact design allows for easy integration into limited space applications.

In summary, the Keyence PJ-F21R light curtain is a high-precision, versatile, and reliable safety device that offers excellent detection capabilities and easy integration into various automation systems. Its unique FN-IP technology, compact design, and robust construction make it an ideal choice for a wide range of industrial applications.

The Keyence PJ-F21R light curtain with FNIP (Fast Neutron Interlocking Protocol) is a safety device used to protect machinery or work areas from unauthorized access or potential hazards. Like any other product, it comes with its advantages and disadvantages.

1. Enhanced Safety: The PJ-F21R light curtain with FNIP offers advanced safety features, such as fast response time and high resolution, ensuring maximum protection for workers and machinery. It is especially suitable for applications where fast interlocking is required, such as nuclear power plants or chemical processing industries.

2. Versatility: This light curtain model is available in various lengths and height ranges, making it adaptable to various applications and machine sizes. It can be installed horizontally or vertically, depending on the specific requirements.

3. Easy Installation: The PJ-F21R light curtain features a plug-and-play design, allowing for easy installation without the need for external power supplies or complex wiring. It also comes with adjustable teaching keys for easy setup and calibration.

4. Durability: The PJ-F21R light curtain is built to withstand harsh environments, including high temperatures, humidity, and vibration. It is also resistant to water and dust, ensuring reliable operation even in challenging conditions.

1. Cost: The PJ-F21R light curtain with FNIP is a high-end safety device, and its price reflects its advanced features and capabilities. It may be more expensive than other standard light curtains, making it less accessible to some budget-conscious organizations.

2. Complexity: While the PJ-F21R light curtain is designed for ease of use, it still requires a certain level of technical knowledge to install and configure. Users may need to consult the user manual or seek assistance from Keyence technical support to ensure proper setup and operation.

The Keyence PJ-F21R light curtain with FNIP is an excellent safety device for organizations that require advanced interlocking capabilities and can afford the investment. Its versatility, durability, and ease of installation make it a popular choice in industries where worker safety and machinery protection are top priorities. However, its higher cost may be a barrier for some organizations with limited budgets.

If your organization requires advanced safety features, such as fast interlocking capabilities and resistance to harsh environments, the Keyence PJ-F21R light curtain with FNIP is a strong recommendation. It offers maximum protection for workers and machinery and is suitable for a wide range of applications. However, if budget is a concern, you may want to consider other standard light curtain models that offer similar safety features at a lower cost.

Details:

The product must be the original item shipped, with matching serial numbers if applicable. Keyence PJ-F21R light curtain reciever manufactured by Keyence. The item may be missing the original packaging. Most items are in stock when they listed.

Manufacturer part number: PJ-F21R. 2-year MRI shield protection plan included. Keyence PJ-F21R light curtain reciever. A new, unused item with no signs of wear.

Special instructions.

specifications alarmpartsacc:

• brand: Keyence
• mpn: Pj-f21r
• part type: Light

general alarmpartsacc:

• category: Business & Industrial > Surveillance Equipment > Systems > Alarm Parts Accessories

payments alarmpartsacc:

• other
• credit card: mastercard
• wallet: apple-pay

offer alarmpartsacc:

• availability: in stock
• options: ship-to-home
• sold #: 17
• prices: $150.00–$210.00
• item condition:
  • New – Open box
  • Used
• in stock #: 3
• best offers: true
• started: july 16, 2025

shipping alarmpartsacc:

• transit: 2-6 days
• service: ups ground, ups next day air, usps priority mail, usps priority mail express
• type: calculated
• class: standard, one-day, expedited
• carrier: ups, usps

returns alarmpartsacc:

• time: 30 days
• paid by: buyer
• policy: returns accepted
• method: money back

seller alarmpartsacc:

• # reviews: 13403
• city: san antonio, texas
• rating: 97.6%