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Enhanced range of AC drives

07 March 2012

Vacon has renewed its entire NXP premium product range of AC drives. The update involves improvements to the air-cooled and liquid-cooled units across the complete power range, from 0.55 kW to 5,300 kW.

At the end of 2011 the company introduced a new compact AC drive product family for OEM customers, refreshing one of its most popular AC drives range in the premium range.
One of the main changes to the range can be seen in the control circuit boards, which have been significantly redesigned and conformally coated. Certain critical components have been replaced in order to increase their temperature sustainability. However, the range of functionality and compatibility of the circuit boards remain unchanged, says the company.

Varnished cards and option boards, which are provided as standard in the power modules above 72A, improve protection against dust and moisture. Performance and durability have also been enhanced via improved cooling channels for optimal cooling and experience-based optimisation of protection limits. In the air-cooled Vacon NXP, new fans improve the reliability of the drive, thus ensuring a longer lifetime. Thanks to the new cooling concept, fan efficiency has been improved by more than 50%.

In the liquid-cooled high-power modules, new options, such as an integrated brake chopper, have been implemented to minimise cabinet size and cost. The processor in the control card has also been changed with the aim of boosting calculation power by 15%.
The revised range has been extensively tested, and HALT (Highly Accelerated Life Test) tests have also been carried out to assure product performance.


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