{"id":22888,"date":"2026-11-04T05:44:35","date_gmt":"2026-11-04T05:44:35","guid":{"rendered":"https:\/\/www.meridian.ba\/?page_id=22888"},"modified":"2026-11-04T06:25:35","modified_gmt":"2026-11-04T06:25:35","slug":"pokretne-stepenice","status":"publish","type":"page","link":"https:\/\/www.meridian.ba\/en\/industrijska-automatizacija\/projekti\/pokretne-stepenice\/","title":{"rendered":"Automation of heavy-duty escalators"},"content":{"rendered":"<style>\n.mrj{--mc:#0099CC;--md:#007aa3;--ink:#1d2a33;--mut:#5b6b75;--ln:#e3eaee;--bg:#f4f8fa;font-family:inherit;color:var(--ink);line-height:1.6;max-width:1140px;margin:0 auto}\n.mrj *{box-sizing:border-box}\n.mrj a,.mrj a *,.mrj a:hover{text-decoration:none!important;box-shadow:none}.mrj a.card:hover{box-shadow:0 6px 20px rgba(0,153,204,.12)}\n.mrj .hero{background:linear-gradient(135deg,#0099CC,#00678a);color:#fff;border-radius:14px;padding:38px 34px;margin:0 0 32px}\n.mrj .hero .bc{font-size:13px;opacity:.85;margin-bottom:10px}.mrj .hero 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a{display:block;border-radius:10px;overflow:hidden;background:#eef3f6;height:200px}.mrj .gal img{width:100%;height:100%;object-fit:cover;transition:transform .25s;display:block}.mrj .gal a:hover img{transform:scale(1.05)}\n.mrj .partner{font-size:14px;color:var(--mut);border-left:3px solid var(--mc);padding:4px 0 4px 12px;margin:18px 0 0}\n.mrj .pn{display:flex;justify-content:space-between;gap:12px;margin:26px 0 0;flex-wrap:wrap}.mrj .pn a{flex:1 1 260px;background:#fff;border:1px solid var(--ln);border-radius:10px;padding:12px 16px;color:var(--ink);font-size:14.5px}.mrj .pn a small{display:block;color:var(--mut);font-size:12.5px}.mrj .pn a:hover{border-color:var(--mc)}.mrj .pn a.nx{text-align:right}\n.mrj a.pcard{display:flex;flex-direction:column;padding:0;overflow:hidden}.mrj .pcard .ph{display:block;height:210px;background:#eef3f6}.mrj .pcard .ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s}.mrj a.pcard:hover .ph img{transform:scale(1.04)}.mrj .pcard .bd{display:block;padding:18px 20px 20px}.mrj .pcard .ind{display:block;font-size:12.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--mc);font-weight:700;margin-bottom:6px}\n#mlb{position:fixed;inset:0;background:rgba(0,0,0,.88);display:none;align-items:center;justify-content:center;z-index:100100;cursor:zoom-out}#mlb img{max-width:94vw;max-height:90vh;border-radius:6px}\n@media(max-width:900px){.mrj .lay{grid-template-columns:1fr}.mrj .facts{position:static}}<\/style>\n<div class=\"mrj\"><div class=\"hero\"><div class=\"bc\"><a href=\"\/en\/\">Home<\/a> \/ <a href=\"\/en\/industrijska-automatizacija\/\">Industrial automation<\/a> \/ <a href=\"\/en\/industrijska-automatizacija\/projekti\/\">Projects<\/a><\/div><h1>Automation of heavy-duty escalators<\/h1><p>Complete modernisation of the electrical, control and safety system in a public transport station<\/p><span class=\"tagl\">Public transport \u2013 railway station<\/span><div class=\"brands\"><span class=\"bl\">Equipment we supply:<\/span><a class=\"bx\" href=\"\/en\/industrijska-automatizacija\/finder\/\" title=\"Finder\"><img decoding=\"async\" src=\"\/wp-content\/plugins\/meridian-finder\/img\/Finder_Blue_Black.jpg\" alt=\"Finder\"><\/a><a class=\"bx\" href=\"\/en\/industrijska-automatizacija\/omron\/\" title=\"Omron\"><svg viewbox=\"0 0 322.51 62.71\" role=\"img\" aria-label=\"Omron\"><g fill=\"#005eb8\"><path d=\"M31.35,49.57A18.22,18.22,0,1,1,49.57,31.35,18.21,18.21,0,0,1,31.35,49.57m0,13.14A31.36,31.36,0,1,0,0,31.35,31.36,31.36,0,0,0,31.35,62.71\"\/><path d=\"M234.71,62.71a31.36,31.36,0,1,1,31.36-31.35,31.36,31.36,0,0,1-31.36,31.35m0-13.14A18.22,18.22,0,1,0,216.5,31.36a18.21,18.21,0,0,0,18.21,18.21\"\/><path d=\"M69.58,1.9V61.22H82.72V12.84H97.05V61.22h13.14V12.84h5.08a9.25,9.25,0,0,1,9.25,9.26V61.22h13.14V22.4a20.91,20.91,0,0,0-20.9-20.91h-34Q76.13,1.49,69.58,1.9Z\"\/><path d=\"M272.33,1.9V61.22h13.14V12.84h14.63a9.26,9.26,0,0,1,9.26,9.26V61.22h13.14V22.4A20.91,20.91,0,0,0,301.6,1.49H285.46C281,1.49,276.68,1.63,272.33,1.9Z\"\/><path d=\"M147.82,1.9V61.22H161V12.84h15.53a9.26,9.26,0,1,1,0,18.51H165.14l20.3,29.87h16.13L187,39.73A19,19,0,0,0,198.88,22.1,20.61,20.61,0,0,0,178.27,1.49H160.94Q154.32,1.49,147.82,1.9Z\"\/><\/g><\/svg><\/a><a class=\"bx\" href=\"\/en\/industrijska-automatizacija\/yaskawa\/\" title=\"Yaskawa\"><svg viewbox=\"0 0 283.46 43.23\" role=\"img\" aria-label=\"Yaskawa\"><g fill=\"#0056b9\" transform=\"translate(-8.5 -8.15)\"><path d=\"M133.94,29.77c4.25,5,9.56,14.17,12.75,21.26H159.1c-3.55-8.15-10.64-19-14.53-23.21A105.36,105.36,0,0,0,158.74,8.51h-12.4a96.12,96.12,0,0,1-12.4,17v-17H123.31V51h10.63Z\"\/><path d=\"M36.14,8.5a93.56,93.56,0,0,1-7.79,16.9,93.61,93.61,0,0,1-7.8-16.9H8.5A98.22,98.22,0,0,0,23,34V51H33.66V34A98.22,98.22,0,0,0,48.19,8.5Z\"\/><path d=\"M58.11,8.5C52.8,19.13,46.42,37.21,43.23,51H54.57c.49-2.21,1.06-4.6,1.7-7.09h15C71.92,46.43,72.5,48.82,73,51H84.33C81.14,37.21,74.76,19.13,69.45,8.5Zm.49,26.93C60.18,30,62,24.35,63.78,19.25,65.6,24.35,67.38,30,69,35.43Z\"\/><path d=\"M110.19,28.35l-9.92-4.26c-2.48-1.06-3.54-1.78-3.54-3.54,0-2.140.71-3,2.48-3.19a58.15,58.15,0,0,1,16.3,1.42V9.39a75.39,75.39,0,0,0-14.17-1.24,51,51,0,0,0-7.090.53c-5.67.9-8.5,4.43-8.5,11.52,0,5,1.77,8.86,6.73,11l9.92,4.25c2.48,1.07,3.54,1.77,3.54,3.55,0,2.12-.71,3-2.48,3.19a60.37,60.37,0,0,1-16.3-1.42v9.39a77.2,77.2,0,0,0,14.18,1.24,51,51,0,0,0,7.08-.53c5.67-.9,8.51-4.25,8.51-11.52C116.93,33.66,115.16,30.47,110.19,28.35Z\"\/><path d=\"M171.14,8.5C165.82,19.13,159.45,37.21,156.26,51h11.33c.49-2.21,1.07-4.59,1.71-7.09h15c.65,2.5,1.22,4.88,1.71,7.09h11.34c-3.19-13.82-9.57-31.9-14.88-42.53Zm.49,26.94c1.58-5.48,3.36-11.08,5.18-16.19,1.82,5.11,3.6,10.71,5.18,16.19Z\"\/><path d=\"M242.36,8.5c-1.61,8.78-4,19.35-6.41,28.79-2.55-9.54-5.08-20.22-6.7-28.79H219c-1.61,8.57-4.14,19.25-6.69,28.79-2.43-9.44-4.8-20-6.42-28.79H194.53c2.83,12.76,8.15,31.19,12,42.53h11.69c1.79-6.34,3.9-14.78,5.85-23.28,1.95,8.5,4.070,16.94,5.85,23.28h11.69c3.9-11.34,9.22-29.77,12-42.53Z\"\/><path d=\"M280.63,51H292c-3.19-13.82-9.57-31.9-14.88-42.53H265.75c-5.32,10.63-11.7,28.71-14.88,42.53H262.2c.49-2.21,1.07-4.6,1.71-7.09h15C279.56,46.43,280.14,48.82,280.63,51Zm-14.4-15.6c1.59-5.47,3.37-11.08,5.19-16.18,1.81,5.1,3.59,10.710,5.18,16.18Z\"\/><\/g><\/svg><\/a><\/div><\/div>\n<div class=\"cover\"><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-1.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-1.webp\" alt=\"Automation of heavy-duty escalators\"><\/a><\/div>\n<div class=\"lay\"><div><p class=\"lead\">Complete renewal of the electrical cabinets, automation and safety control of escalators: Sysmac, distributed I\/O, NX-SL3300 safety controller and Safety over EtherCAT.<\/p><div class=\"stats\"><div class=\"stat\"><b>NX-SL3300<\/b><span>safety controller<\/span><\/div><div class=\"stat\"><b>Safety over EtherCAT<\/b><span>safety communication<\/span><\/div><div class=\"stat\"><b>Modbus RTU<\/b><span>link to the SCADA system<\/span><\/div><\/div><div class=\"sec\"><h3>Heavy-duty escalators<\/h3><p>The escalators in this project are heavy-duty units designed for intensive use in public transport.<\/p><h3>Complete electrical and field modernisation<\/h3><p>This was not just a PLC replacement. The escalator control cabinets were completely renewed, and the field switches, sensors and associated electrical components were replaced as well. The control cabinets and automation were delivered on a turnkey basis.<\/p><h3>Sysmac and distributed I\/O<\/h3><p>The control system is based on Sysmac automation and distributed I\/O; field equipment is connected to the control system via distributed I\/O.<\/p><h3>Integrated safety architecture<\/h3><p>Safety functions are handled by a separate safety architecture with an NX-SL3300 safety controller and Safety over EtherCAT communication. The safety devices in the field are integrated into this system.<\/p><h3>Safety and operational monitoring<\/h3><ul class=\"ck\"><li>Speed and direction monitoring<\/li><li>Main and auxiliary brake monitoring<\/li><li>Handrail monitoring<\/li><li>Missing \/ damaged step detection<\/li><li>Chain break detection<\/li><li>Safety switches for steps, skirt, pit and covers<\/li><li>Emergency stop circuits, safety switches and sensors<\/li><li>Contactor feedback monitoring (EDM)<\/li><li>Back-up control in case of inverter failure<\/li><\/ul><h3>Back-up control and SCADA<\/h3><p>The control cabinet includes a star-delta starter that allows the motor to run even if the frequency inverter fails.<\/p><p>The system is connected to the existing SCADA infrastructure via Modbus RTU communication.<\/p><\/div><p class=\"partner\">The project was delivered in cooperation with our partner engineering team.<\/p><\/div><aside class=\"facts\"><dl><dt>Industry<\/dt><dd>Public transport \u2013 railway station<\/dd><dt>Project type<\/dt><dd>Electrical, control and safety \u2013 modernisation<\/dd><dt>Solution area<\/dt><dd><a href=\"\/en\/industrijska-automatizacija\/industrijska-rjesenja\/sigurnost-masina\/\">Machine safety \u203a<\/a><a href=\"\/en\/industrijska-automatizacija\/industrijska-rjesenja\/automatizacija-masina\/\">Machine automation \u203a<\/a><a href=\"\/en\/industrijska-automatizacija\/industrijska-rjesenja\/retrofit-i-modernizacija-masina\/\">Retrofit and modernisation \u203a<\/a><\/dd><dt>Contractor<\/dt><dd>Meridian \u2013 design, supply, commissioning, service and warranty<\/dd><\/dl><\/aside><\/div>\n<h2>Project scope<\/h2><ol class=\"scope\"><li>Escalator automation<\/li><li>Complete control cabinets<\/li><li>Sysmac<\/li><li>Distributed I\/O<\/li><li>NX-SL3300 safety<\/li><li>Safety over EtherCAT<\/li><li>Speed and direction monitoring<\/li><li>Brake monitoring<\/li><li>Handrail monitoring<\/li><li>Step monitoring<\/li><li>EDM \/ contactor feedback<\/li><li>Star-delta back-up drive<\/li><li>Modbus RTU<\/li><li>SCADA integration<\/li><li>Retrofit and modernisation<\/li><\/ol>\n<h2>Project gallery<\/h2><div class=\"gal\"><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-2.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-2-1024x576.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 2\" loading=\"lazy\"><\/a><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-3.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-3-768x1024.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 3\" loading=\"lazy\"><\/a><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-4.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-4-768x1024.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 4\" loading=\"lazy\"><\/a><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-5.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-5-576x1024.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 5\" loading=\"lazy\"><\/a><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-6.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-6-576x1024.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 6\" loading=\"lazy\"><\/a><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-7.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-7-1024x576.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 7\" loading=\"lazy\"><\/a><a href=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-8.webp\"><img decoding=\"async\" src=\"https:\/\/www.meridian.ba\/wp-content\/uploads\/2026\/11\/meridian-projekat-pokretne-stepenice-8-1024x648.webp\" alt=\"Automation of heavy-duty escalators \u2013 photo 8\" loading=\"lazy\"><\/a><\/div>\n<div class=\"cta\"><h2>Planning a similar project?<\/h2><p>Describe the machine, line or process \u2013 we will get back to you with a proposed solution and an estimate of the scope of work. For new projects and upgrades of existing systems.<\/p><div class=\"btns\"><a class=\"btn em\" href=\"mailto:info@meridian.ba?subject=Upit%3A%20Automatizacija%20heavy%20duty%20pokretnih%20stepenica&#038;body=Pozdrav%2C%20zanima%20me%20sli%C4%8Dan%20projekat%3A%20Automatizacija%20heavy%20duty%20pokretnih%20stepenica.%20Molim%20vas%20za%20kontakt%20%2F%20procjenu%20projekta.\">\u2709 Request a project estimate<\/a><a class=\"btn wa\" href=\"https:\/\/wa.me\/38766000497?text=Pozdrav%2C%20zanima%20me%20sli%C4%8Dan%20projekat%3A%20Automatizacija%20heavy%20duty%20pokretnih%20stepenica.%20Molim%20vas%20za%20kontakt%20%2F%20procjenu%20projekta.\" target=\"_blank\" rel=\"noopener\">WhatsApp<\/a><a class=\"btn vb\" href=\"viber:\/\/chat?number=%2B38766000497&#038;draft=Pozdrav%2C%20zanima%20me%20sli%C4%8Dan%20projekat%3A%20Automatizacija%20heavy%20duty%20pokretnih%20stepenica.%20Molim%20vas%20za%20kontakt%20%2F%20procjenu%20projekta.\">Viber<\/a><\/div><p class=\"note\" style=\"margin-top:12px\">info@meridian.ba \u00b7 +387 66 000 497<\/p><\/div>\n<div class=\"pn\"><a href=\"\/en\/industrijska-automatizacija\/projekti\/modernizacija-peci-za-laminaciju\/\"><small>\u2039 Previous project<\/small>Modernisation of a lamination furnace control system<\/a><a class=\"nx\" href=\"\/en\/industrijska-automatizacija\/projekti\/recepture-i-doziranje\/\"><small>Next project \u203a<\/small>Process automation of a floor panel line<\/a><\/div><\/div><div id=\"mlb\"><img alt=\"Enlarged project photo\"><\/div><script>(function(){var b=document.getElementById('mlb'),i=b.querySelector('img');document.querySelectorAll('.mrj .gal a,.mrj .cover a').forEach(function(a){a.addEventListener('click',function(e){e.preventDefault();i.src=a.href;b.style.display='flex'})});b.addEventListener('click',function(){b.style.display='none';i.src=''})})();<\/script>","protected":false},"excerpt":{"rendered":"<p>Complete renewal of the electrical cabinets, automation and safety control of escalators: Sysmac, distributed I\/O, NX-SL3300 safety controller and Safety over EtherCAT.<\/p>","protected":false},"author":2,"featured_media":22812,"parent":22735,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-22888","page","type-page","status-publish","has-post-thumbnail","hentry","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Automatizacija pokretnih stepenica | Meridian Group<\/title>\n<meta name=\"description\" content=\"Potpuna obnova elektro-ormara, automatizacije i sigurnosnog upravljanja pokretnih stepenica: Sysmac, distribuirani I\/O, sigurnosni kontroler NX-SL3300\u2026\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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