DC Motor Speed Control Trainer
(CT-019)

1.DC motor, 2.Inductive proximity sensor, 3.Generator, 4.Speed digital display, 5.Emergency switch, 6.ON/OFF switch, 7.Motor indication LED, 8.Generator indication LED

  • Familiarization with types and functions of different control systems
  • Investigation of open loop circuit
  • Investigation of closed loop circuit
  • Demonstration of different types of PID controllers used to control DC motor speed:
    • P-controller
    • PI- controller
    • PID- controller
  • Brushed DC Motor
    • Power consumption: 209 W
    • Nominal Torque: 290 mNm
    • Nominal Speed: 3430 ... 5000 rpm
  • Inductive Proximity sensor
    • Metal detective
    • Frequency: 350Hz
    • Setting distance: 0: 3.5 mm
  • DC motor speed control trainer - (CT - 019)
  • BEDO Software + USB cable
  • Hard copy user manual
  • Laboratory PC

DC motor speed control trainer is a benchtop unit that features one of the most important industrial applications of PID (proportional – integral – derivative) controllers which is the DC motor speed control. The trainer allows trainees to regulate and control the speed of an electric DC motor using PID controller. The trainer aims at demonstrating the principles and function of PID controller, effect of manipulating the controller variables on the control system, as well as the limitations of each control system (P,PI & PID).

                                     
  • The educational unit features a setup of a DC motor speed control system using PID controller to study and investigate its operation.
  • The trainer provides wide range of experiments to study the effects of different controller parameters (P, PI, PID) and their influence on the closed loop system response.
  • Printed on the unit front panel a schematic diagram of the system process featuring the main control elements such as : the controlled variable, disturbance source, measuring element and its feedback, PID controller and the final control element (actuator).
  • The system consists of a DC motor (a shaft with a flywheel), inductive proximity sensor, generator and an operation unit.
  • DC motor speed represents the controlled variable, which is measured by the inductive proximity sensor to give its output signal as a feedback in the closed loop system.
  • Resistive loads are connected as a load to the generator so the speed of the shaft can be influenced.
  • The generator provides different load values to study the effect of the disturbance variables
  • The system is supplied with a S/W to monitor, record and control the process, as well as to alter process settings when experimenting with different control systems.
  • The trainer contains a digital display which provides an accurate reading of speed that are measured by the highly sensitive proximity sensor.
  • The software is used to visualize the main differences of the system response curve due to the change of control gains P, I and D and to study the effect of each gain on the system response.
  • System parameters can be instantly displayed on a PC (not included) using USB socket and data acquisition software.
  • The unit is supplied with two LEDs indicating the operation state of the motor and generator , in addition to ON/OFF switch and emergency button.
  • The unit is equipped with two handles for easier mobility.
  • The trainer is supplied with a cover made of acrylic to provide safety and protection in addition to it’s resistance to scratching and wearing.