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Vacon Drives Are The Water Specialists Choice!

19 October 2005

Leading specialist in the development and supply of control systems for water features, irrigation and pumping installations, ST Controls of Stoke-on-Trent, is now exclusively specifying variable speed drives from Vacon Drives UK for all of its projects.

Among the prestigious installations where ST Controls has already used Vacon equipment are the innovative double-arch fountain which forms the centrepiece of Liverpool's city-centre Williamson Square development, the spectacular water displays at Alnwick Garden in Northumberland, and the new irrigation system for what is probably the world's most important cricket ground - Lords.

In water feature applications, the fast accurate response of Vacon drives allows precise pump control for dynamic special effects, while in irrigation systems, the emphasis is on the substantial energy savings that are achieved by using pumps in conjunction with variable speed drives.

Unlike many currently available drives, Vacon products do not have large numbers of built-in special features that are rarely needed, which means that they are exceptionally simple to set up and use. They can, however, be readily configured for specialist applications with inexpensive application-specific software which Vacon develops to suit the user's precise requirements.

ST Controls has taken full advantage of this configurability by using customised PID software. This allows pump speed to be controlled so that the required delivery pressures and flows are accurately maintained, even if there are large, rapid changes in pump operating conditions - a situation which is often encountered in fountain displays and similar water features.

ST Controls also benefits from the inherent simplicity of Vacon drives. When minor changes or updates are needed, for example, the company has found that, in most cases, it is possible to provide end users with instructions over the telephone so that they can carry out the work themselves, thereby eliminating the cost and inconvenience of site visits.

We've been manufacturing specialised control systems for water-related applications for more than 12 years, said Steve Tellwright, the owner of ST Controls, and, until about three years ago, we used variable speed drives from a range of suppliers. We were then introduced to the Vacon products, and were very impressed by how easily they could be set up to meet our needs by using application-specific software.

The drives quickly proved themselves in the field , he continued, and, since they also offer outstanding value for money, it didn't take us long to standardise on Vacon products. We've never looked back.

Not only are the products themselves excellent, the service provided by Vacon is also exceptional. Deliveries are always fast and on time and, on the few occasions we've needed technical advice, it's always been helpful and readily available.

ST Controls now has several hundred Vacon drives in service in applications ranging from the prestigious high-profile installations already mentioned to everyday pumping tasks. All of the drives are achieving consistently high performance, as well as delivering very high levels of reliability.

For ST Controls, Vacon Drives are proving an ideal choice, offering simplicity combined with configurability, and dependability combined with value for money. The features of the drives help ST Controls to meet the requirements of its own customers effectively and economically, thereby providing the company with important competitive advantages.

Vacon Drives UK is a subsidiary of Vacon plc, a Finnish company which was founded in 1993 to develop and manufacture AC frequency converters for industrial and commercial applications.

The company has adopted a unique design approach based on using a range of standardised, well-proven and cost-effective hardware which is adapted by the use of application-specific software to meet the needs of its customers.

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