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!

Commander SK

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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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Drive Configuration and Programming


CTSoft software is a free PC or laptop Windows based drive configuration tool designed to enable the complete control and display of all parameters within a Commander SK. Functions within CTSoft allow data to be uploaded, viewed, and saved, or retrieved from disk, modified and printed. It can be used off-line in the office or on-line in the factory. CTSoft communicates with the Commander SK via the computer’s serial port to the drive’s RS485 port using a communications cable (CT Comms Cable). Some of CTSoft’s capabilities include:

  • Remote Upload/Download
  • Parameter Saving
  • Monitor Screens
  • Multiple Window Display
  • Block Diagram Animation
  • Project Storage

CTSoft screenshot


Commander SK isolated serial to RS485 Communication CableUsing an isolated serial to RS485 converter you can connect the PC/laptop to the RJ45 serial port on the front of the drive. The CT Comms Cable is available from Control Techniques for this purpose – this same cable is also used with other Control Techniques products that use a RJ45 RS485 connector such as the Commander SE and the Unidrive SP.

Description Order Code
PC-to-drive Comms Cable CT Comms Cable


This option enables the simple set up of parameters in a variety of ways. The SmartStick can:

  • ‘Clone’ a complete set of parameters from the first drive to multiple drives (perfect for serial production)
  • Download parameter settings to the drive to easily set up your application
  • Automatically save the user parameter set up for storage and maintenance purposes
  • Load complete motor map parameters

SMARTSTICKThe drive only communicates with the SmartStick when commanded to read or write, meaning that it may be “hot swapped”.

Description Order Code
PC-to-drive Comms Cable CT Comms Cable
Cloning and Parameter storage SmartStick

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