Receive a Text Quote
We will send you price and availability shortly
Invalid number. Please call (800) 691-8511
Looking for a fast quote? Click here, and we'll text you.


Rated 5/5 on 1 review

Rate this product

MANUFACTURER: Control Techniques

DESCRIPTION: Resolver Interface

PRODUCT TYPE INFO: Unidrive Small Option Module 

7 in stock
Ships Today

Free Shipping
2 Year warranty
Part NumberUD53
ManufacturerControl Techniques
Model #UD53
TypeOption Modules
Warranty2 Year
OptionResolver Interface
Option sizeSmall OM

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed UD53 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2 year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this UD53 we also repair drives, motors, PLCs and more, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty UD53, just let us know and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 1lb

Want it shipped today?

  • Order within the next 10 hours and 16 minutes.
  • If you order between 4pm and 6pm EST, you will be charged a small rush fee.

Ask about exchanging your faulty UD53 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Additional Information

Control Techniques UD53 Overview

The Control Techniques UD 53 resolver interface module is a small option module for use with the Unidrive control unit.


The UD 53 resolver interface small option module is applicable for installation in the Unidrive. The UD 53 works with resolvers. The resolvers operate with the following specifications: 

Input impedance: >85Ω at 6kHz 

Turns ratio (primary: secondary): 3:1 or 2:1 

Excitation voltage: 6VRMS or 4VRMS

Operations for UD 53 use

The UD 53 is used for position and speed feedback. The UD 53 small option module is installed in a drive unit that must operate in one of two modes. It must operate in either closed loop vector or closed loop servo mode.

Simulator encoder outputs

What do the simulated-encoder outputs produce? Quadrature AB signals are produced and correspond to the line counts from the source of the encoder. The outputs are able to be configured for both frequency and direction. Whether it is configured for frequency or direction, the outputs retain information about position even when the direction is changed. 

What is the output default source for the UD 53?  The resolver is used for the source of the simulated-encoder output. Encoder I, the main encoder connected to the 15-way D-type on the drive, can be used as the main source.

The pulse count per revolution can be scaled by factors of 2. 


The UD 53 small option module is installed in the fitted slot in the bay of the Unidrive.

Multiway connectors allow all connections to the drive. How are external equipment connections made? Connections are made by way of a plugin 16-way screw terminal block on the UD 53.

Product Description

The UD53 is a Resolver Interface that is manufactured by Control Techniques. These products are manufactured in United Kingdom and are designed for Metal production, paper processing, and material conveying usage. All of the products come with a 2 year warranty from MRO Electric. We also carry Option Modules from other manufacturers such as Siemens and Yaskawa.

Related Products

Check out the rest of our Control Techniques product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or sending us an email at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like UD53, take a look at more from our Option Modules line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our UD53 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

5 stars

4.9 Overall Satisfaction Rating

Over 1650 Ratings from Actual Customers

Read Our Reviews

MRO always has what I'm looking for including hard to find obsolete parts. Great customer service.


Became a reliable source for specific motor controllers, especially replacement models that are no longer available. Se...

Texas Buyer

no comments

Kellie Niemi

Customers We Work With

3M Logo
Motion Industries Logo
Caterpillar Logo
Vallen Logo
Ford Logo
IBM Logo
Gexpro Logo