Schmersal’s SLC440 Series Safety Light Curtains and Safety Light Grids incorporate a full range of functions, highly visable signaling, and an alignment aid in a rugged housing. 
    
Bluetooth interface and SLC Assist app
Now a standard feature of the SLC440, the light curtains have an integrated Bluetooth Low Energy system which provides secure data transmission up to 5 meters. The data transmitted is accessible by the Schmersal SLC Assist app, available for Android and iOS smartphones and tablets. The app can provide documentation on the light curtain, either emailed or saved to the smartphone or tablet.
 
Multiple functions
The SLC/ SLG 440 series offers numerous functions as standard features:

• fixed blanking
• floating blanking
• fixed blanking with movable edge region
• double reset
• contactor control (EDM)
• automatic mode
• re-start mode
• beam coding

Set up is simplified as selection and configuration of these functions are made via a single push-button and the 7-segment display. After completion, the selections are stored in the system. This user-friendly method does not require separate software or costly set-up devices. With the SLC Assist app you can see which functions have been enabled and their parameterized settings.
 
Signaling
Operating status can be seen from a distance: The end cap of the receiver unit is molded from a semitransparent plastic that is illuminated by LED. It shows green for proper operation and red for a fault. Also, the 7-segment display which was so helpful in set up, now displays error codes and flashing signals to report specific faults and problems. The SLC Assist app can provide real-time monitoring of the active operation mode, the status of the OSSD outputs, and the status of the protective field - the information necessary to quickly resolve faults.
 
Alignment aid
Installation of the emitter and receiver units is made easier with the integrated alignment aid. This function tests the first and last beams for alignment and displays the results on the 7-segment display. Once both are situated properly, the display can be changed over to show signal strength, to allow for fine tuning the alignment. The SLC Assist app displays the signal strength of each beam, to also assist with alignment.
 
Housing
Like our other Type 4 safety light curtains, our SLC440 series features a one-piece extruded reinforced housing - this time in a compact 28 mm x 33 mm rectangular profile. This housing profile has proven to be less susceptible to mechanical damage and misalignment from torsion or bending. Also available with a IP69 enclosure for wash down applications.  
 
Additional specifications
Safety light curtains SLC 440 are used for the protection of hazardous areas, and are available with resolutions of 14 or 30 mm and protection field heights between 170 and 1930 mm; Also available as safety light grids (SLG 440) with 2, 3, or 4 beams for perimeter guarding. Both series are suited for use in safety circuits up to PLe (EN 13849) or SIL3 (IEC 61508).