Slip Ring Motor Drives provide digital control for cranes.

Press Release Summary:




Available in 3 frame sizes with standard supply voltage inputs up to 480 Vac, JL/X Series covers output currents from 100-1,850 A. Units that accept AC supply voltages up to 690 Vac are also available for higher voltage applications. Thyristor stack configuration provides 3-phase output suitable for controlling slip ring motors in either 2 or 4 quadrant modes. All fieldbus options including Profibus, DeviceNet, CC-Link, EtherNet/IP, Modbus, and CANopen are supported.



Original Press Release:



Slip Ring Motor Drives from Sprint Electric



Latest digital control for cranes

Arundel, England, - Sprint Electric now offers drives for slip ring motors. The new motor controllers will be introduced in November at SPS/IPC/Drives, the international trade fair for electric automation, systems and components, in Nuremberg, Germany.

A slip ring motor is a type of induction motor having a wound rotor connected to slip rings. Typical applications for slip ring motors include cranes, where the motors are used to control the hoist as well as the X/Y movement.

Sprint Electric's JL/X range of slip ring motor drives is a derivation of the PL/X digital DC drive product range. It shares the same software and hardware platforms and delivers the same precise digital control functionality as the established PL/X range of DC drives. The main difference is that the thyristor stack configuration has been designed to provide a 3 phase output (U, V, W) suitable for controlling slip ring motors in either 2 or 4 quadrant modes. All the fieldbus options including Profibus, DeviceNet, CC-Link, EtherNet/IP, Modbus and CANopen, and configuration software packages used with the PL/X are also available for the JL/X range.

The JL/X range of slip ring motors covers output currents from 100 to 1850 Amps and comes in three frame sizes with standard supply voltage inputs up to 480 VAC. Overload capability is 150 percent. For high duty applications, the JL/XHD range is available with an overload capability of 250 percent. There is also the option of high voltage units that are able to accept AC supply voltages up to 690 VAC for higher voltage applications. All models have the high current 3 phase supply terminals in standard top entry, with the motor connections being bottom entry. The JL/X is supplied configured for crane control as standard with joystick or analogue demand inputs and outputs needed to control up to four external slip ring resistors, together with dedicated outputs for super-synchronous regenerative lowering and brake control.

Sprint Electric's full range of products include analogue and digital DC drives from 12 Amps up to 2250 Amps. Whether in retrofits or original equipment, DC drives from Sprint Electric are being used in many different applications including metal processing, the pulp and paper industry, rubber and plastic processing, lifting equipment, food processing, leisure industries and many more.

Sprint Electric at SPS/IPC/Drives, international trade fair for electric automation, systems and components, in Nuremberg, Germany, 23 to 25 November 2010: Hall 1 Stand 518

About Sprint Electric:

Sprint Electric Ltd., based in England and founded in 1987, offers a wide range of DC motor control, with over fifty models covering both single phase and three phase, regenerative and non-regenerative applications. From low voltage servo performance controller to highly sophisticated fully digital three phase DC variable speed drive of many hundreds of amps, Sprint Electric products meet the demands of countless industrial applications around the globe. Sprint Electric is committed to providing innovative products backed up by a high level of customer service to the world-wide industrial market. For its outstanding success in international trade, Sprint Electric won the Queen's Award for Enterprise in April 2009, one of the most prestigious business awards in the UK. In the USA, Sprint Electric products are available through Bardac Corporation.

For more information, please contact:

Sprint Electric Ltd.

Mr. Gary Keen

Rudford Industrial Estate

Ford, Arundel, West Sussex

BN18 0BD

Tel: 0044 (0)1903 730000

Fax: 0044 (0)1903 730893

E-mail: gary@sprint-electric.com

Internet: www.sprint-electric.com

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