Draw-wire linear transducer SWM


Catalog excerpts

Draw-wire linear transducer SWM - 1

Cable-type displacement converter SWM series for use with absolute and incremental encoders n Very robust construction for mechanical engineering and industrial plant application n For converting linear displacements of up to 5 m into a rotary movement n For mounting onto an absolute or incremental encoder n Easy to install and to use n Protection grade IP 65 (IP 54) Functional description The linear movement of a flexible steel cable, which can have a length of up to 5 m, is converted into an rotary movement with the aid of a measuring drum. The measuring drum is connected to the shaft of an encoder. In this way a change in displacement of the measuring cable causes the shaft of the encoder to rotate by a directly proportional amount which can be recorded. Generally encoders and converters are supplied as one unit. Upon request both items are also available as separate units. To load the encoder model series KR, CR and TM are suitable with digital interface, DAF and TM with analog interface and pulse of the series, GIO and GIM TB. Preferably used are those with the flange-58th. The restoring force of the spring drive holds the measuring cable tight at all times and prevents any sagging which would otherwise induce an error. The cable is wound up precisely and reproducibly wrap for wrap in the helical groove of the drum. The nozzle, through which the cable enters the drum, is protected with a brush and a bellow to prevent water or dust entering the drum. Two roller units at the cable entry allow for up to 20° < deflection of the cable. ) TWK-ELEKTRONIK GmbH Heinrichstrasse 85 info@twk.de www.twk.de

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Draw-wire linear transducer SWM - 2

1 / 2 / 3 / 5 m 200 mm nom.1) 332 mm nom.1) 4 m/s 15 N max. / 30 N max. Edelstahl 1,4401 0,55 mm (nom.) > 5 x 106 cable strokes 20° in all directions anodized aluminium plastic Housing IP 64 Cable entry IP 54 -20 °C to +70 °C -30 °C (option) 1.0 / 1.0 / 1.5 / 2.0 kg ■ Measuring ranges: ■ Drum circumference: Measuring range to 3 m Measuring range to 5 m ■ SPermissible cable speed: ■ EForce required to draw out the cable (start / end): ■ Cable material: ■ Cable diameters: ■ Lifespan: ■ Fleet angle: ■ Housing material: ■ Spring housing: ■ Protection grades: ■ Working and storage temperature...

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Draw-wire linear transducer SWM - 3

Cable-type displacement converter SWM Installation drawings Cable exit permissible deflection 20° (all directions) Dimensions in mm Cable-type displacement converter SWM measuring ranges 1 m, 2 m and 3 m It is recommended to lay the cable exit vertically downwards or sideways. Cable-type displacement converter SWM measuring range 5 m The F1 threaded holes at two faces permit to adjust the position of the cable exit to suit the requirements in situ. Cable exit permissible deflection 20° (all directions)

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