Motion Control & Drives


Rugged, cost-effective safety light curtain

April 2004 Motion Control & Drives

Banner Engineering is offering its EZ-Screen safety light screen system, a non-contact, point-of-operation machine guarding system. This new robust system is believed to be the industry's easiest to set up, align and operate, due to its excellent optical design, variety of sizes and resolutions, zone indicators, detailed diagnostics, and flexible mounting options. It is also believed to be the lowest cost system of its kind. The system also offers ample power - with a range up to 18 m and fast response times ranging from 9 to 40 ms.

"Especially significant to note, the two-piece EZ-Screen system does not require a separate control box, only a self-contained emitter and receiver pair," said Mike Carlson, technical manager for Banner's Safety Products. "This technology also eliminates the need for a synchronisation wire between the emitter and receiver because the system is synchronised optically - making it extraordinarily easy to install and operate," said Carlson. Despite its simplicity, this redundant microprocessor-controlled, self-checking design exceeds control reliability requirements and is certified per CE (Type 4/Category 4) and cULus (NIPF, UL61496, UL1998).

With systems available in two resolutions offering minimum object sensitivity of 14 mm or 30 mm, this compact package is suitable for finger or hand detection on smaller production machines, yet robust enough for large power presses. The addition of these hand protection EZ-Screen models round out the EZ-Screen safety light screen product family that includes grid and point style models for long-range (up to 70 m) perimeter guarding applications. The vibration-tolerant emitter and receiver circuitry, rugged aluminium housing, die-cast metal end caps, and acrylic lens cover result in long-lasting dependability, even in demanding industrial environments. It is also smaller than similar competitive systems, measuring just 45,2 mm by 36 mm.

Ease of set-up is achieved with a wide range of protective heights from 150 to 1800 mm, available in 150 mm increments. The emitter and receiver can be oriented on a vertical or horizontal plane or at any angle in between. Bracket choices provide the option of mounting the emitter and receiver from each end or by a convenient mounting channel on either side. Special brackets are also available for retrofitting older light curtains. Each system is pre-configured for most typical trip output, 'reach-through' applications. Trip output automatically resets when blocked beams are cleared. For 'pass-through' applications, Latch Output is easily configured via the access panel on the front of the receiver. Latching output requires a manual reset once the beams are cleared.

Extensive diagnostics further aid and simplify set-up, operation and maintenance. Both emitter and receiver feature highly visible diagnostic displays to provide continuous feedback of operating status, configuration and error conditions. The receiver features an easy to read seven-segment, three-digit display to indicate the number of beams interrupted or blocked and error codes if the system goes into lockout mode. The LED Zone Indicators on the receiver show when sections of the light screen are aligned or clear, or which areas are misaligned or blocked. DIP-switch selectable functions enable reduced resolution (Floating Blanking), Trip or Latch Output, external device monitoring (EDM), and Scan Code setting are accessible through the access cover.

The Banner EZ-SCREEN System is intended for point-of-operation machine guarding applications and other safeguarding applications, including area guarding when mounted horizontally and perimeter guarding utilising corner mirrors. A range of mounting brackets, stands and mirrors are available to facilitate virtually any conceivable mounting configuration. Typical applications include small assembly equipment, pick-and-place machines, moulding presses, packaging machinery, palletisers, roll formers, automated production equipment, robotic work cells, and power press applications.

The receiver has two solid-state safety outputs to control 24 V d.c. loads up to 0,5 A. For AC loads or loads requiring higher currents, an optional relay interface module is available, or discrete relays may be driven directly.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Premium slewing rings from SKF
SKF South Africa Motion Control & Drives
SKF’s slewing bearing portfolio spans standard and customised designs across a wide range of types and sizes, backed by advanced monitoring, remanufacturing services and application engineering expertise for demanding industrial applications.

Read more...
World’s first fully electric hydrogen fuel cell aircraft engine
Motion Control & Drives
Airbus and MTU Aero Engines are establishing a joint venture to industrialise hydrogen-electric propulsion systems for commercial aviation, combining liquid hydrogen expertise with fuel cell development to support the ZEROe programme’s 2035 target.

Read more...
Monopile handling innovations boost offshore wind farm
Motion Control & Drives
Mammoet’s XXL monopile transport system and new MTC 1600 terminal crane are helping offshore wind developers safely marshal and install ever larger monopile foundations, as demonstrated on Van Oord’s Baltic Power project.

Read more...
Automation without the mega factory
Yaskawa Southern Africa Motion Control & Drives
Mid-sized South African manufacturers are turning to targeted, low-risk automation to solve specific bottlenecks rather than chasing full factory transformation, helped by retrofit-friendly robotics and advanced simulation software.

Read more...
Duplex worm gears for precision backlash adjustment
Motion Control & Drives
KHK USA has introduced duplex worm gears that allow precise backlash adjustment through simple axial movement of the worm shaft, eliminating the need for gearbox housing alterations during assembly or maintenance.

Read more...
Choosing the right level of protection in modern automation
Motion Control & Drives
Choosing the right ingress protection rating for a motor or drive is less about maximising the number, and more about understanding what the machine will actually face in operation.

Read more...
Osterwalder launches multi-plate, fully electric powder press
Motion Control & Drives
Osterwalder Technology has launched the MPneo 480, a 480 kN fully electric multi-plate powder press with up to six cross-pressing modules. Designed for hard metals, ceramics and advanced engineered materials, the press supports complex geometries and offers optional

Read more...
Ground helical racks for superior precision and durability
Motion Control & Drives
KHK USA has announced its ground helical rack series, engineered for smooth operation, high torque transmission and long-lasting performance in precision motion systems. The racks are designed for demanding environments such as machine tools, high-speed automation equipment and precision positioning systems.

Read more...
SpinDrive launches Magma X100 active magnetic bearing controller
Motion Control & Drives
SpinDrive has launched the Magma X100, a new active magnetic bearing controller platform for applications up to 150 kW. The platform brings oil-free, frictionless bearing technology to mobile machinery, semiconductor equipment and other high-speed rotating equipment at a cost comparable to conventional bearing solutions.

Read more...
Sealed split spherical roller bearings deliver rapid installation and reduced downtime
SKF South Africa Motion Control & Drives
SKF Cooper sealed split spherical roller bearings combine a split design with premium engineering to enable rapid installation and simplified maintenance, reducing mean time to repair by up to 70% and keeping operations running in sectors from mining to food and beverage.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved