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friction clutches - Arten Freios e Embreagens Industriais

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Table of Contents◗WEB AUXILLARY CONTROLSPaper Checker – PC 210The Paper Checker Systemdetects web breaks and spliceson web-fed machinery. It alsodetects double sheet feedingon sheet-fed machines.When the system senses a splice,break or double sheet feed, analarm indicator lights and arelay changes state (normallyopen or normally closed).SpecificationsWeb ProductsPAPER CHECKER – PC 210Detects web breaks, splices and double sheet feeding.Main ApplicationsWeb splice and break detectionon rotary presses, slitters,laminators, coaters, winders andother machines running a web.Double feed detection onsheet-fed presses, bagmachines and laminators.Features• Non-contact sensing• Wide range of web(sheet) thicknesses• Senses all materialsincluding paper, cellophaneand polylaminates• Ultrasonic sensingeliminates false triggeringcaused by printed charactersor patterns• Simultaneous detection ofweb splice and web break• Color and material of splicingtape, and use of a butt spliceor overlap splice do notaffect splice detection• Synchronous signal can beused to eliminate falsetriggering caused by websag during web stop• Self calibrating to new webthicknessHow the System WorksThe Paper Checker Systemhas two parts—the PC 210Paper Checker Control and theUH 200 or UH 215 Ultra-sonicSensor, composed of a transmitterand receiver element.The PC 210 provides an excitationsignal to the transmitterand reads the return signalfrom the receiver. The PC 210indicates machine-feedconditions through the frontpanel LEDs and contact closures.There are two sets of contacts:one for web splice or doublefeed and one for web break.The ultrasonic signal enablesthe sensor to “see through”clear and opaque film, papersand laminates without falsetriggering that patterns orprinting can cause when othertypes of sensors are used. Italso recalibrates to a new webthickness when product is changed.ProductModel Number Web Splice Detection Web Break Detection Two-Sheet Feed Detection Sensor Specification Common SpecificationsPC 210 Web Thickness Web Thickness Sheet Thickness Power Supplywith 913071 0.00004 to 0.031 in. 0.0019 to 0.031 in. 0.0019 to 0.031 in. UH 200 40kHz frequency 100 to 240 VAC, 50/60 HzUH 200 (1µm to 0,8mm) (50µm to 0,8mm) (50µm to 0,8mm)Power Consumption 10 VASplice Width Line Speed Output Contacts,PC 210 0.787 in or more 3300 ft./min. Web Break andwith 913072(20mm or more)(1000 m/min. or less)UH 215 33.3 kHz frequency Web Splice/Double FeedUH 215 Line Speed Rating: 240 VAC, 01 A3300 ft./min. 24 VDC, 0.1 A(1000 m/min. or less)Reset Time, Web SpliceWeb breaklamp (red)Normal RunIndicator (green)Double Feed/Web SpliceIndicator(red)Test SwitchTest IndicatorReset SwitchDouble Sheet Contact0.2 - 6 secondsWeight:Controller 0.91 lb. (2kg)Sensor 0.23 lb. (0.5kg)(one pair)Cable Length 16 ft.(5 meters)Power IndicatorPower SwitchCalibration Controls338

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