Product Overview: Panasonic SF4D-A40 Safety Light Curtain
The SF4D-A40 is a high-performance industrial safety light curtain part of the advanced SF4D series by Panasonic. Specifically designed for arm protection, this unit features a 40mm beam pitch and is engineered to provide a robust safety barrier in automated environments. It is a critical component for safeguarding robot cells, assembly lines, and pressing machinery, ensuring that operations halt immediately upon detection of an intrusion into the protected zone.
High Reliability and Slim Design
The SF4D-A40 stands out due to its high-power optical system, which ensures stable operation even in environments with high levels of dust or oil mist. The series features a «no dead zone» design, allowing for seamless integration into machine frames without gaps in protection. With a fast response time and an integrated digital indicator for beam alignment, the SF4D-A40 simplifies both installation and maintenance. Its rigid aluminum housing is designed to resist twisting and bending, maintaining alignment over long-term industrial use.
Key Technical Characteristics
- Part Number: SF4D-A40.
- Protection Type: Arm Protection (40mm pitch).
- Beam Channels: 40 channels.
- Operating Range: Up to 15 meters.
- Response Time: 10ms or less (OFF).
- Output Type: PNP/NPN (Switchable).
- Protection Rating: IP67 / IP65 (IEC).
- Safety Standard: Type 4, PLe, SIL3.
Advanced Alignment and Synchronization
This model includes the Application Indicator, which allows for visual confirmation of the light curtain status from a distance. It supports both optical synchronization and wired synchronization, providing flexibility in wiring layouts. The SF4D-A40 is also equipped with a high-intensity ELCA (Extraneous Light Check & Avoid) function to prevent interference from other sensors or specialized lighting in the factory.
| Feature | Specification |
| Protective Height | 1590 mm |
| Supply Voltage | 24V DC +/- 10% |
| Current Consumption | Approx. 70 mA |
Frequently Asked Questions
Can I use this for finger protection? No, the A40 model is for arm protection (40mm). For finger protection, the SF4D-F series (10mm pitch) is required. Is it resistant to welding sparks? While robust, it is recommended to use additional protective covers if used in direct proximity to heavy welding.
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