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

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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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Option Modules

Feedback Modules

Control Techniques Unidrive SP SM-Universal Encoder Plus Feedback Module.SM-UNIVERSAL ENCODER PLUS

The SM-Universal Encoder Plus module provides the Unidrive SP with an additional feedback port that supports all of the same feedback types as the base drive, plus has a simulated encoder output that can be programmed to operate in the following modes:

  • Quadrature Incremental
  • Pulse and Direction
  • SSI

The module also incorporates freeze inputs for applications requiring position capture.

Control Techniques Unidrive SP SM-Encoder Plus Feedback Module.SM-ENCODER PLUS

The SM-Encoder Plus module provides an additional quadrature incremental encoder feedback port. Note: More than one SM-Encoder Plus and/or SM-Universal Encoder Plus module may be installed in a single drive.

Control Techniques Unidrive SP SM-Resolver Feedback Module.SM-RESOLVER

This module enables the Unidrive SP to control the speed and position of motors fitted with resolvers. Because of their ruggedness, resolvers are often used in hot, demanding enviornments.

Input Impedance: >85 Ohms
Transformation Ratio: 3:1 or 2:1
Excitation Frequency: 6kHz
Maximum Motor Speed
Feedback Resolution
Quadrature Format
0-3,300 rpm
14 bit
3,301-13,200 rpm
12 bit
13,201-40,000 rpm
10 bit

This module also incorporates a simulated encoder output that can be sourced either from the resolver or the main drive encoder.

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