Device and method for controlling a conveying zone in a roller conveyor

摘要

In a roller conveyor system for carrying out zone control, a conveyed article can be stopped in an approximately constant position without varying the position where the article is stopped in a desired control zone even if the weight of the article varies. In order to stop the article in a predetermined control zone, a motor is decelerated and stopped in a plurality of braking modes depending on the change in the pulse width of a rotational pulse signal to stop the article with high precision in a predetermined stop position. <IMAGE>