ELECTROMAGNETIC CONTACTOR FOR MINIMIZING DAMAGE IN A FACTORY MANAGEMENT SYSTEM

摘要

PURPOSE: An electromagnetic contactor is provided to re-input electricity by receiving feedback about the state of the electromagnetic contactor.;CONSTITUTION: An operation electricity supply unit inputs operation electricity. An electron switch driver drives power supply of a load. A switch drives the electron switch driver. An operation state determining unit(136) determines the state of an electromagnetic contactor. An input voltage sensing unit(132) senses the size of an input voltage. An input signal generator(134) generates an input signal. The input signal determines whether the electromagnetic contactor is input or not.;COPYRIGHT KIPO 2013;[Reference numerals] (104) Surge absorber; (106) Noise filter circuit; (108) Rectifying circuit; (112) Discharging circuit; (122) Pulse width modulation unit; (124) Current sensing circuit; (132) Input voltage sensing unit; (134) Input signal generator; (136) Operation state determining unit