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Charlotte Stonestreet
Managing Editor |
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Digital motor control for cranes
14 February 2017
Sprint Electric offers a comprehensive range of digital drives for AC slip ring/wound rotor motors. With output power up to 975kW, the JL/X range of digital drives is suited to retrofit applications for gantry and tower cranes.

Covering output currents from 75kW to 975kW with supply voltage inputs up to 690VAC, the JL/X range is a derivation of the PL/X digital DC drive product range, sharing the same software and hardware platforms and delivers the same precise digital control functionality.
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, EtherNet/IP, Modbus and CANopen, and configuration software packages used with the PL/X are also available for the JL/X range.
- Feature rich website
- Heavy Industry Application
- Regenerative drives
- Regenerative DC motor control
- DC motors will not die or be ditched
- Digital drives
- 25 YEARS IN THE DC DRIVES BUSINESS AND STILL GROWING
- Energy regeneration made simple
- New joint MDs at Sprint
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