Datasheet GE1214
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Datasheet GE1214 - 1

GE1 21 4-.. Heavy-duty tachogenerator Straightforward application Suitable for extremely rigorous operating conditions NORIS tachogenerators are maintenance-free Rugged construction A.C. voltage and D.C voltage output Integrated direction-of-rotation idendification Meets C€ requirements Noise-immune signal transmission No radio interference Direct or indirect drive possible Protection class: IP66 Choice of mechanical connections for speed sensing Flanges and brackets available for mounting Suitable evaluation devices available Tachogenerators Tachogenerators of series GE.. Germanischer Lloyd NORIS A.C. tachogenerators are maintenance-free speed-measuring devices using permanent-magnet excitation. They are designed to provide an A.C. voltage signal that is proportional to a speed of their drive shaft. It is possible to use either voltage or frequency as the measured variable. Tachogenerators are used where a direct supply is desired for indicating instruments, monitoring or processing devices. Drive is either direct from the take-off shaft by means of couplings or indirectly via belt-and-pulley or friction wheel arrangements. Tacho-generators are working without operating voltage. General notes on Type GE1214-.. Method of operating of GE1214-.. tachogenerator The drive shaft rotates a permanent magnet in a stationary conductor and induces a voltage in the latter whose amount and frequency are proportional to the speed of the drive shaft. The GE1214-.. is of 12 the pole type having 6 pairs of poles so that the frequency of the alternating voltage is 1/10 of the input speed. A mechanical direction switch fitted with a reversible rectifier permits direct detection of the direction of rotation. A change in direction will be detected from approx. 1/4 rotation of the drive shaft independent of the speed. Voltage characteristic The voltage characteristic shows the output voltage plotted against speed at a load of 1 mA: Details of the GE1214-.. tachogenerator • Electrical termination by screw terminals • Output is an approximately sinusoidal A.C. voltage (factory calibration of speed effected via A.C. voltage) • Additional output as a pulsating D.C. voltage with direction-sensitive polarity • Integrated direction-of-rotation switch with hermetically sealed reed relay • High electric output for multiple indicator operation • Extremely long life through extra-sturdy suspension of drive shaft • Direct drive possible via flexible couplings • Indirect drive possible via V-belt pulley or friction wheels • Wheels and pulleys can be mounted directly on the shaft • Extremely high protection class (IP66) and rugged construction Load characteristic The load characteristic shows the drop in output voltage in % at varying loads and at different speeds:

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Datasheet GE1214 - 2

Other Data Termination of GE1214-.. Screw terminals, with cable entry PG16 Accessory to tachogenerators Item additional by inquiry additional information for drive and mounting see drawing Type key / variants Device code GE Rugged construction, calibration U1 1,500 rpm = 60 V/AC, U2 1,500 rpm = 52.5 V/DC, upper speed range 150 ... 1,750 rpm, with direction-of-rotation switch Variant without designation NORIS Automation GmbH Muggenhofer Strasse 95 D - 90429 Nurnberg Germany Tel.: +49 (0)9 11/32 01-0 Fax: +49 (0)9 11/32 01-150 info@noris-automation.com www.noris-automation.com Version A:...

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