APPARATUS FOR SETTING OPERATION AUTHORITY OF A DIGITAL DEVICE IN POWER DISTRIBUTION SYSTEM

摘要

PURPOSE: An apparatus for setting operation authority of a digital device in a power distribution system is provided to prevent accidents due to the operating a digital device. CONSTITUTION: An external signal input unit(100) comprises an input port(101) and a photo-coupler(103). The input port receives a signal switching a local/remote state of a digital device from the outside. A controller(110) sets the digital device to a local state from a remote state. A key input unit(120) and a display unit(130) performs a user interface function. The key input unit receives user instructions from a user. The display unit displays information on the device on a screen.