Motor doesn't stop

Im using roboclaw and Pololu motors for my purpose.Sometimes my motors don’t act to the command sent to it example : - the motors suddenly rotates at high speed(rotates front and back) and during that time if i set the speed to 0 the motors don’t stop.Let me know if you know any further details.


Could you post some more information about your setup? For example, how are you controlling the RoboClaw, and if applicable, could you post the simplest possible code that demonstrates the problem? Which particular gearmotor are you using, and are you using encoders? Also, could you post some pictures of your setup that show all of your connections?