Patent ID: 7360638
Filing Date: 2008-04-22
Classification: G05B,H01R

Abstract:
1. A motorized roller integrated control card for use with a material handling system having a conveying surface and a plurality of motorized rollers, said conveying surface defining a plurality of individually controlled zones, at least one of the said motorized rollers propelling said conveying surface at each of said zones, each of said motorized rollers rotating in response to a command signal supplied to that motorized roller and including at least one rotation sensor that produces a rotation signal in response to rotation of that motorized roller, said integrated control card comprising: a plurality of motor controller circuits each adapted to control one of said motorized rollers; an upper level control circuit in communication with said plurality of motor controller circuits, said upper level control circuit adapted to communicate with said motor controller circuits for controlling said motorized rollers; and a circuit board, wherein said upper level control circuit and said plurality of motor controller circuits are commonly mounted on said circuit board; wherein each of said motor controller circuits is adapted to respond to the rotation signal of said one of said motorized rollers and to produce a command signal as a function of the rotation signal, wherein each of said motor controller circuits supplies the command signal to said one of said motorized rollers to rotate that motorized roller, wherein each of said motor controller circuits defines a voltage range and responds to a voltage level of the rotation signal that falls within the voltage range and wherein each of said motor controller circuits is adapted to produce electrical power at a plurality of different voltage levels and to supply electrical power to said one of the motorized rollers at one of the voltage levels, the one of the voltage levels being a function of said one of the motorized rollers connected with that one of said motor controller circuits.