Modeling DC Motor Control

Students use this pre-built LabVIEW VI for modeling the QNET DC Motor
This lab introduces students to using transfer functions to create models for how a DC motor behaves. In addition, they run open-loop feedback control with a virtual instrument to validate the DC motor model. This lab gives basic insight into parameters that define the motor so the student can later accurately control speed and position.
by Quanser Inc.
This is lab 1 of 6 in the course, Labs for Quanser QNET DC Motor Add-On Board.


  • PDF Lab 
  • LabVIEW code


  • PDF Lab Key
  • Completed LabVIEW code


  • Basic LabVIEW familiarity recommended
  • Familiarity with transfer functions


The NI Educational Laboratory Virtual Instrumentation Suite (NI ELVIS) is a versatile laboratory platform that enables educators to teach over 20 different courses across science and engineering departments. The NI ELVIS integrates 12 common lab instruments including an oscilloscope, function...


LabVIEW is systems engineering software for applications that require test, measurement, and control with rapid access to hardware and data insights.

Quanser QNET DC Motor Add-On Board

This NI ELVIS add-on board is designed to illustrate the fundamentals of motor control through a series of exercises involving modeling and controlling a DC motor.

Required Software

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  • LabVIEW (Requires license)
  • LabVIEW Control Design and Simulation Toolkit (Requires license)
  • LabVIEW MathScript RT Module (Requires license)
  • NI ELVISmx Device Driver

Required Hardware

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