Perimeter, access guard; light curtains; connecting system


Discrete Control

Pico-Guard Point from Banner Engineering operates with light and uses no electricity at the point of detection so can be used in explosive environments.

Several guarding and other safety devices were introduced recently for machine safety applications. These include a safety perimeter guard for manufacturing cells, multiple light beam safety device, and module that allows sequential connections for up to three light curtains. Manufacturers are Banner Engineering , Sick , and Scientific Technologies Inc .
Think of a one-beam light curtain, and that’s the non-contact fiber-optic safety element from Banner Engineering. Compact, rugged Pico-Guard Point, designed for use with the Pico-Guard fiber-optic controller for personnel safety applications can provide perimeter- and access-guarding. Multiple emitter- and receiver-points can be arranged to customize optical safety grids that meet Safety Category-4 requirements. Made of impact-resistant polycarbonate or stainless steel, it can guard distances up to 28.7 m and resist damage from moisture and debris. It comes with 12- or 30-mm barrel and is rated IP67.
Access guarding device offers maximum availability for work cells. M4000-Standard multiple light-beam safety device from Sick offers mounting flexibility, with a three-groove housing and swivel-mount end caps. It protects a perimeter up to 70 m with beam spacing of 300, 400, 450, 500, and 600 mm. M4000 is ideal for guarding robot cells, manufacturing cells, a fence opening, and other areas.


Use of STI’s RM-5 Resource Module can eliminate the need to press cycle-start switches and motion injuries caused by reaching for and pressing start switches.

Connect up to three sets of safety light curtains. Scientific Technologies Inc. introduces the RM-5 Resource Module, a microprocessor-controlled, multifunction relay, allowing up to three light curtains to be connected in sequence. It provides 2-NO and 1-NC force-guided safety contacts. Muting for conveyor applications and presence sensing device initiation (PSDI) are also a function of this resource module. PSDI is used to initiate the cycle of a machine by counting the number of “breaks,” or obstructions, of a presence-sensing device (light curtain). Operating a machine in PSDI mode allows for increased productivity because “non-value added” movements to cycle machines are eliminated. This multi-function resource module is CE approved and UL listed.

—Edited by Mark T. Hoske, editor-in-chief, Control Engineering

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Controller programming; Safety networks; Enclosure design; Power quality; Safety integrity levels; Increasing process efficiency
Additive manufacturing benefits; HMI and sensor tips; System integrator advice; Innovations from the industry
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me