PLEASE NOTE: Effective 2019, we no longer supply Control Techniques variable frequency drives and components. We have drives from several other manufacturers which can meet or exceed the performance characteristics of the Control Techniques line. Simply complete the form below, or contact us with the model of your current or obsolete Control Techniques drive and we’ll be glad to identify a suitable replacement.

Also, the Fincor and Saftronics lines of AC variable frequency drives, DC variable speed drives, and reduced voltage starters were once owned by Emerson but have been obsolete for several years. However, we have many years’ experience working with these drives and can quickly identify replacements capable of exceeding the quality and performance of these older drive technologies. For a suitable replacement, fill out the form below or contact us with your drive or application requirements, and we’ll handle it from there!

Unidrive SP

Go to Control Techniques, Solutions Through Innovation

Solutions Platform

Obsolete Drive Replacement RFQ -

If you need a replacement for an existing obsolete drive, complete the following form and we will send you a quote for a suitable replacement.

* Required

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Control Techniques' Unidrive SP AC Drives. The BenchmarkOVERVIEW


The Unidrive SP is “The Benchmark” for AC drive and servo controls in the automation industry. It is a truly scalable “Solutions Platform” with the flexibility to be personalized to customer requirements, and lower true total cost while maximizing productivity. The Unidrive SP “Solution Platform” incorporates many cost saving and performance improvement features based on input from end users and OEMs. These include Secure Disable, Multiple Fieldbus capability, on-board EMC filter, Universal feedback device support, and the facility for up to three Solution Modules to tailor the drive to specific application needs. Open loop, closed loop vector, servo control modes make the Unidrive SP the ideal “Solutions Platform.”

  • Universal Digital AC Drive
  • 1.0 to 40 HP. 3 phase, 208-230 VAC
  • 1.0 to 1000 HP. 3 phase, 380-460 VAC
  • 3.0 to 350 HP. 3 phase, 575 VAC
  • 25 to 400 HP. 3 phase, 690 VAC
  • Higher HP systems available through paralleling — See Engineered Systems
  • Five operating modes with energy-saving Power Factor Control in Regen Mode*
  • Secure Disable for contactor elimination to EN954-1 cat 3
  • SmartCard – Parameter and applicationprogram cloning and back up card
  • Universal feedback interface supports up to 14 types of encoders
  • High Resolution Analog Input (16 bit plus sign)
  • RS485 Interface for PC connection
  • Dual duty ratings: Normal and Heavy
  • Three zero-space universal option slots

* Note: Additional components are necessary to produce a regen drive package.


Control Techniques' Unidrive SP AC Drives Extruder Application. Control Techniques' Unidrive SP AC Drives Elevator Control Application.
Control Techniques' Unidrive SP AC Drives Conveyor Application. Control Techniques' Unidrive SP AC Drives Wire Drawing Application.
Control Techniques' Unidrive SP AC Drives pump Application. Control Techniques' Unidrive SP AC Drives Bridle Control Application.

Information provided by Control Techniques, a world leader in the design, production and marketing of electronic drives for the control of electric motors.