If you're looking for a flexible, responsive supplier that can provide a reliable, cost-effective coordinated AC, DC or eddy current drive system, add QDS to your bidder's list. Particular examples where QDS has proven to be a good choice include:

New Coordinated Process Drive Systems

Versus the major manufacturer's system groups, QDS has typically proven to be more:

• flexible and responsive to work with, particularly in the critical design and commissioning stages
• knowledgable about external systems, including programmable controllers, distributed control systems and instrumentation not manufactured by the drive vendor and how these are effectively interfaced to the drive system.
• cost effective due to generally lower overhead and lower markups for system components the drive manufacturer sources from outside companies.

Retrofits of Existing Systems

• QDS flexibility and responsiveness are often particularly necessary for these type projects
• Converting older analog drive coordinated systems to new digital designs typically requires re-engineering the system controls. This often includes use of peer-to-peer inter-drive and/or direct drive to PLC communications and an integrated PLC drive master regulator rather than the existing less repeatable, harder to maintain analog scheme.
• It is often desirable to retrofit motors with older analog tachs to newer pulse or magnetostrictive bearing-less designs. 
• Retrofits often require engineering and assembly so that the system fits in a pre-defined space, sometimes on a new backpanel in an existing enclosure with master terminal block layouts and wire numbering such that existing field wiring can be reused.
• Cutover of retrofit systems typically needs to be carefully planned and completed within a narrow time span.

Experience List