Software & Controls
cost effective method of connecting E-Stop information between different parts of machines to high safety levels (PLe/SIL3). It also allows easy implementation of span control using function block logic rather than complicated wiring. JKSP also took advantage of the ability within SICK Flexi Loop to add auxiliary circuits and developed a fast stop system, as a non-safe machine stop condition for production issues such as machine jams and threading/spooling. For example, one across the Single Facer one, pushbuttons are provided as a fast stop procedure for the main drive to shut down, if a paper jamming problem occurs.
EASY FAULT IDENTIFICATION AND BETTER PRODUCTION FLEXIBILITY The SICK Flexi Soft gateways enable diagnostic information to be displayed on local HMIs identifying which safety device
has been pressed. HMI viewpoints local to the production line aid rapid location of the cause of stoppages. In this way, time spent checking an entire line or zone for an unidentified fault is saved, so there is less production downtime. “If someone does hit an E-Stop and then
walks away from it, the action is on an HMI indicating which one’s been hit,” adds Bullen. “Then the operator can easily identify the cause of the stop and reset it, rather than having to go around the whole machine checking all of the emergency stop buttons.”
REDUCED CABLING SICK Flexi Line demonstrated particular benefits in the upstairs LV panel room where all the main drive motors are located. Without Flexi Line, it would have been necessary to run 20 cables through the room wall and a large cable entry would have needed to be constructed. Instead, the Flexi Line installation required just one Flexi Line cable and one PROFINET cable, to carry all the control, diagnostics and feedback information.
FUTURE DEVELOPMENT Bullen continues: “At Board24, E-Stop testing has always been done historically by a guy with a clipboard. To complete the register, he has to test all the E-Stops: start the
machine and stop it, over and again. It was long process to test the full corrugators. To start and reset every type of safe stop can take about eight hours. “It was a monthly maintenance task meaning Saturday or Sunday work while the machine is not in production, often undertaken while trying to fit in other jobs. “JKSP’s knowledge of the SICK safety
system was fantastic. In fact, we depended on it, as E-Stop systems, zoning and legislation have to be implemented correctly. When added to their thorough knowledge of corrugators, it meant they were able to carry out the full installation for us, allowing our production and maintenance teams to concentrate on our job of manufacturing quality products to our customers.”
www.sick.com/gb
safetyIQ: THE NEW DIMENSION OF SAFETY.
Discover the perfect combination of safety, intelligence, and quality: safetyIQ is our innovative approach that opens up new dimensions of productivity. SafetyIQ includes smart serial products, systems solutions and services. And it enables autonomously operating systems and the best possible interaction between humans and machines. For the protection of people and an increase in productivity. We think that’s intelligent.
www.sick.com/safetyiq
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