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friction clutches - Arten Freios e Embreagens Industriais

friction clutches - Arten Freios e Embreagens Industriais

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Table of ContentsWeb ProductsTCD 600 DIAMETER TENSION CONTROLLERThe central component of a tension control system.How the TCD 600 works.• Maintains constant tension by varying brake or clutch torqueproportional to the change in product roll diameter. The setpoint isadjusted for the maximum torque needed at full roll diameter, theTCD600 applies a correction based on its diameter calculationand proportionately increases clutch torque as a wound roll buildsup or decreases brake torque as an unwind roll becomes smaller.TENSION CONTROLS ◗Applications• The TCD 600 determines roll diameter with one of three methods:Ultrasonic Sensor applicationTypical SystemOutput to pneumatic <strong>clutches</strong> and brakes is through an electropneumatic converter (see pages 305-307). Output to electric<strong>clutches</strong> and brakes is through an external power supply. Outputto a variable speed motor is through the motor control.Ultrasonic Sensor (912127)Power Supply: 20-30VDC Reverse Polarity ProtectedInput Current: 50mAOperational Range: Adjustable 4” To 40” [100 TO 1000 mm]1. An ultrasonic sensor measures the distance to the surface ofthe product roll. A short distance indicates a full roll and alonger measurement indicates a smaller roll.Proximity Sensor applicationProximity Switch (912068)Power Supply: 10-30VDCOutput: Open CollectorTarget: Ferrous IronSensing Distance:

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