Qualitative PD Control

Students use this virtual instrument for QNET DC Motor position control
Students learn how to use a PD (proportional-derivative) compensator to control motor position. This lab introduces the fundamentals of deriving a closed-loop transfer function to define the motor position system. Students learn how the proportional and derivative gains effect the control system by modifying the respective gain values.
by Quanser Inc.
This is lab 2 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 controls

Related Resources


These labs enable students to apply the skills they learn.


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

Download Academic Software, Learn About Software Licensing
  • LabVIEW (Requires license)
  • LabVIEW Control Design and Simulation Toolkit (Requires license)
  • LabVIEW MathScript RT Module (Requires license)
  • NI ELVISmx Device Driver

Required Hardware

Purchase Engineering Education Products
  • NI ELVIS II – View Specifications
  • Quanser QNET DC Motor 2.0 Add-on Board – User manual is included in the main download above


Instructor resources are available. Get access

Log in to submit a comment.