CONTROL DEVICE FOR ELECTRIC MOTOR AND ELECTRIC POWER LOAD USING POWER LINE

摘要

PURPOSE: A control device for a power load and an electric motor using a power line is provided to reduce installation costs by supplying power through a control power supply line and digitally communicating with a center control unit with an MODBUS method. CONSTITUTION: An electric motor control board receives power and supplies electricity to an electric motor and a power load by an operation of a magnetic relay. The electric motor control board includes a CCU(Center Control Unit)(150) connected to a DOU(Door Operate Unit) by a control power supply line. The DOU is connected to the CCU with a control power supply line, receives operation power, and communicates with the CCU with an MODBUS method. An LOU(Local Operate Unit)(310) is connected to the CCU with the control power supply line and supplies a control command to the CCU.