In this work was presented an experimental stand for the PWM control of the DC motor used for driving a
conveyor belt. This experimental stand has been built at Electric machinery Laboratory of the University “Vasile
Alecsandri” in Bacau. For supplying the DC motor an H-bridge has been used that allows the reversal of the motor
rotation wise. The PWM signal is generated by an ARDUINO UNO board, equipped with an Atmega 328
microcontroller. For controlling the ARDUINO UNO board, a program has been issued in the LabVIEW 2013
programming environment. The running duty of a conveyor belt may be modified by modifying the duty-cycle value
of the PWM signals that controls the transistors of the H-bridge that supplies the DC motor. With this experimental
stand were studied the running characteristics of the conveyor belts under laboratory conditions, so that, further on,
such driving systems can be implemented to industrial applications as well.