EC: SLC440 Safety Light Curtain

Safety - Machine safety: The SLC440 series Type 4 Safety Light Curtain has innovative features that include a seamless one-piece body for superior mechanical strength, integrated alignment aid, visible output status indication and a 7 segment message display. This is a Control Engineering 2013 Engineers' Choice finalist.


The SLC440 series Type 4 Safety Light Curtain has innovative features that include a seamless one-piece body for superior mechanical strength, integrated alignment aid, visible output status indication and a 7 segment message display. This is a Control Engineering 2013 Engineers' Choice finalist.The Schmersal SLC440 Series of Safety Light curtains were designed with the user in mind by reducing installation time and minimizing costly machine downtime. Standard features on the SLC440 include: fixed and floating blanking, blanking with movable edge, double reset, contactor control (EDM), beam coding, automatic mode and re-start interlock mode. These functions are selected and configured during set up without a PC or software.

Other time saving features include an integrated alignment aid, which guides the user to ensure proper light curtain alignment. If misaligned the 7 segment display tells the user which portion of the light curtain requires alignment. Once the emitter and receiver are situated properly, the display can be changed over to show signal strength, to fine tune the alignment. To help operators and maintenance personnel, the SLC440 includes a highly visible LED signal lamp in the receiver end cap. This LED displays the light curtain output status indicating when the OSSD output is high (on) or when it is low (off). As well, the 7 segment display found on the light curtain receiver displays error codes to help the user identify specific faults.

The Schmersal SLC440 is built to survive the rigors of everyday real life industrial applications. Unlike most other safety light curtains, the SLC440 features a one-piece extruded housing, in a compact 28 mm x 33 mm rectangular profile. This reinforced housing profile provides maximum strength and is less susceptible to mechanical damage and misalignment from torsion or bending. SLC 440 Safety light curtains are used for the protection of hazardous areas, and are available with resolutions of 14 mm or 30 mm and protection field heights between 170 mm and 1770 mm. These type 4 light curtains are suited for use in safety circuits up to PLe (EN 13849) or SIL3 (IEC 61508).

K.A. Schmersal GmbH and Co.

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
A cool solution: Collaboration, chemistry leads to foundry coat product development; See the 2015 Product of the Year Finalists
Raising the standard: What's new with NFPA 70E; A global view of manufacturing; Maintenance data; Fit bearings properly
Sister act: Building on their father's legacy, a new generation moves Bales Metal Surface Solutions forward; Meet the 2015 Engineering Leaders Under 40
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security
Upgrading secondary control systems; Keeping enclosures conditioned; Diagnostics increase equipment uptime; Mechatronics simplifies machine design
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Building high availability into industrial computers; Of key metrics and myth busting; The truth about five common VFD myths

Annual Salary Survey

After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.

The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.

Read more: 2014 Salary Survey: Confidence rises amid the challenges

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.