PID Controller - "DC Motor Speed Control" ( Model-II )

To study open loop control of any physical control system and study of closed loop control of the same system using P, PI and PID controller

DC servomotor speed control using PID control method.

The system consists of a DC servomotor with microcontroller based PID controller and software. The PID controller interface with computer using RS232 or USB communication port. The software based control system controls the speed of a DC servomotor using PID method and also evaluates the values of P, I and D. An eddy current break applied for creation of disturbance.


The following experiments to be performed :

  1. Open Loop Control system.
  2. Close loop control system including P , I and D.
  3. Loading effect on DC servomotor and PID control action.
  4. Evaluation technique of P , I and D  using N- Z method.


The system consists of :

  1. DC servomotor with Eddy current break system
  2. Optocoupler based sensor system for pulse counting
  3. Microcontroller based PID Controller and data acquisition system
  4. Ammeter
  5. 16x2 matrix display shows values of P, I, D and pulse rate
  6. Software


 Additional accessory required :

  • Computer with XP, 7 and RS232 port or USB port


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