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 SX

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NEMA 4X Washdown Drive

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.

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Commander SX RS232 to RS485 Communication CableUsing a special RS232 to RS485 converter you can connect th PC to the RJ45 serial port on the front of the drive. A special pre-made cable is available from Control Techniques for this purpose – the same cable is used with other Control Techniques products that use a RJ45 RS485 connector such as the Unidrive SP and Commander SK.

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


Control Techniques Commander SX XPressKey option. The XPressKey option is used to save a copy of all the Commander SX parameters so that they can be duplicated very simply into another drive. To Save parameters using the XPressKey:

  • Connect the XPressKey to the Commander SX serial port
  • With the drive disabled “Inh”, set Pr 64 to “Prog”
  • Confirm the transfer of parameters into XPressKey by pressing the drive “Stop” key

To set the drive parameters with the XPressKey:

  • Connect the XPressKey to the serial port
  • With the drive disabled “Inh”, press the “Key” button once
  • Confirm the transfer of parameters into the drive by pressing the” Key” button a second time
  • When the display reverts back to “Inh”, the transfer is complete and the XPressKey can be disconnected and replaced in its storage slot
Description Order Code
SX cloning module XPRESSKEY

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

Operator Interfaces

Control Techniques Commander SX Local Controls via Pushbutton (PB).LOCAL CONTROLS VIA PUSHBUTTON (PB)

Commander SX is supplied standard with a LED display comprising 4 x 7 segment digits to indicate drive status and operating data, Programming is done via intuitive operator panel with 3 control buttons and three parameter setting buttons, All parameters are in a simple menu structure and programming is done in a simple and easy way just like Commander SK.


This handheld NEMA 12 option makes it much easier to set the Commander SX parameters and access them, Its LCD display, consisting of one line of 12 characters and 2 lines of 16 characters, offers text which can be displayed in 5 languages (English, French, German, Italian and Spanish).

Control Techniques Commander SX PX-LCD Handheld NEMA 12 Option. The PX-LCD console has 4 main functions:

  • read mode for Commander SX supervision and diagnostics
  • From the time it is plugged in, the PX-LCD display is in read mode, By pressing the keys, the user can scroll through all the parameters required for supervision and diagnostics, such as:
    • motor current
    • motor frequency
    • motor voltage
    • analog I/O levels
    • logic I/O states
    • logic function states
    • timer
  • An interactive parameter-setting wizard which makes it very simple to configure the Commander SX, The parameters are set in successive steps, The parameters offered at each step by the PX-LCD handheld console depend on parameters set in the previous steps. The user will therefore only be offered those parameters required by the application
  • Access to all the Commander SX advanced parameters in order to optimize settings or configure special applications, All the parameters, organized by menus, can be accessed via the PX-LCD console- last faults
Description Order Code
LCD Handheld Keypad PX-LCD

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