Patent ID: 6392318
Filing Date: 2002-05-21
Classification: G05B,H01H

Abstract:
An electronic control system for controlling the flow of bulk power to a plurality of loads through at least one switch having a first and second position to start and stop the flow of bulk power, respectively, comprising:a) an emergency-stop circuit for receiving a plurality of input signals from a plurality of input sources and for providing a primary output signal to control said switch, wherein said first and second position of said switch are responsive to said emergency-stop circuit being energized or de-energized, respectively; b) a means for determining whether or not a first energizing cycle has occurred since application of power to logic of said emergency-stop circuit, and, c) a means to drive a dedicated error code whenever said first energizing cycle has not yet occurred, said dedicated error code superseding any other error code generated from any of said plurality of input sources.