Torque motors - PM synchronous motors

Product catalog summary

General Description: The document describes the Series TF torque motors, which are water-cooled PM synchronous motors. These motors feature a ring-shaped geometry with a hollow shaft and rare-earth magnets, providing direct drive with high torque at low speeds. They are compact, robust, low-maintenance, and produce low noise.

Specifications: The rated voltage ranges between 330V and 360V, depending on the stator windings. The motors are designed for continuous operation with variable speed and power ratings. The field weakening speed is 1.5 to 2 times the rated speed, depending on the motor type and converter qualities. The maximum mechanical speed is specified, and the design for high-speed applications may differ from the standard.

Mechanical Dimensions: Water connections vary by model, with sizes ranging from 1/2 inch to 1 inch. The number of fastening bolts can vary, and enhanced housing is available upon request.

Cooling Systems: The motors are liquid-cooled, with a standard coolant inlet temperature of 25°C. Higher temperatures require power reduction. The cooling system includes a copper coolant circuit, and anti-corrosion protection is not necessary. Water flow rate, pressure, and pipe fittings are specified according to the table or nameplate.

Thermal Class and Protection: The motors are classified under thermal class F according to DIN EN 60034 / VDE 0530, with a winding temperature of 105 K above ambient. They are designed for converter operation with specific peak voltage and pulse rise time requirements. Temperature monitoring is standard with 3PTC+2KTY sensors, and other sensors are optional. The enclosure protection ranges from IP23 to IP54.

Feedback Systems and Mounting Options: Various feedback systems are available to determine rotor position and motor speed, including hollow shaft encoders and excentric mounting with belts. Brakes and gears can also be mounted upon request.

Catalog excerpts

Torque motors OSWALD Elektromotoren GmbH www.oswald.de - eMail: [email protected] - Telefax: ++49 9371 9719-50

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Technical data series TF Leistungs- und Drehmomentdiagramm 1) Field weakening speed 1,5 ... 2 x nN; various depending on motortyp and converter qualities Field weakening range Feldschwächbereich Base speed range Grunddrehzahlbereich Torque S3 Moment S3 Rated high speed ** ** Bemessung hohe Drehzahl Power S1 Leistung S1 Torque S1 Moment S1 nN nF 1) Speed Voltage: 350V * Spannung: 350V * 2) maximum mechanical speed 2) maximale mechanische Drehzahl Ratings for continuous operation (These data may be changed) * Rated voltage may vary between 330V and 360V depending on the stator windings ** other...

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konstruktive Ausführungen und Mafie

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