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Drives get extended power and washdown variants

Drives get extended power and washdown variants Baldor has extended its H2 family of AC motor drives for adjustable speed applications with new higher power options, washdown-duty variants, and more plug-in expansion cards. Highlights include 26 new AC motor drives that extend the upper power rating from 45 to 93 kW, a further selection of drives available in washdown-duty enclosures, and a programmable 'pulse-follower' board that allows users to link drives in sophisticated ways - including electronic gearing. One of the key features of Baldor's new H2 drive family is its focus on reliability. This results from a high-integrity design strategy which includes FMEA (failure mode and effect analysis), built-in protection modes to guard against mis-use, and a manufacturing process embracing stress testing and full-load testing of final products. With over a year of sales history for the lower power options, this careful design approach has resulted in a repair returns level of less than 0.3 percent - an exceptional figure for this area of power electronics - providing valuable support for automation users with critical or continuous processes. H2 drives are available in open- or closed-loop variants, supporting inverter, encoderless vector and closed-loop vector modes of motor control. There is also a range of drives for servo motor control applications up to 18.5 kW. The closed-loop variant features a fourth-generation space-vector control algorithm for fast and steady motor control as temperature and loading conditions fluctuate. This sheer choice of speed control, combined with a modular expansion bus and option range, provides optimised solutions to all adjustable speed motor drive applications, from simple speed control to advanced positioning and sophisticated movements. Positioning software is included with the new drives. This supports 15 different profiles as standard, including point-to-point moves, without installing any additional hardware.
 

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