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

Is an encoder or tachometer being used for speed feedback to the drive?:
Opt-In to our e-mail list:

Operator Interface


The Unidrive SP can operate without a keypad, or with either the SM-Keypad or SM-Keypad Plus. The SM-Keypad is a full-function, 7-digit LED data display. The SM-Keypad Plus is a back-lit LCD display option that can be mounted on the drive or remote mounted. SM-Keypad Plus supports 5 languages, plus custom text database, on-line help, and HMI features. Both keypads are “hot-pluggable,” enabling them to be moved from one drive to another without powering down.

Control Techniques Unidrive SP AC Drive Opions. SM-Keypad + No Keypad SM-Keypad + No Keypad
Control Techniques Unidrive SP AC Drive Opions. SM-Keypad Plus SM-Keypad Plus


These operator interface units complement the CT product line by offering an impressive way of accessing parameters and adding more programming power to your application. The following features make these screens a simple and impressive solution for you… and your customers:

  • Graphical full color and 4-tone monochrome touchscreen
  • Menus, submenus, alarms, fault conditions,
  • Realtime trends and graphs
  • Scheduling and background programs
  • Modbus RTU and Modbus TCP/IP
  • Import pictures and graphics
  • Advanced Recipe capabilities

For more information, refer to the Accessories Section

Control Techniques Unidrive SP AC Drive Opions. Human Machine Interface (HMI) VT155 VT155 Control Techniques Unidrive SP AC Drive Opions. HMI (Human Machine Interface) VT525 VT525

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