Cooling controller of gantry crane and its control method

本发明提供了一种测定了龙门起重机的线性电动机周围环境之后，当线性电动机过热时，能使用冷却扇和空气喷嘴来冷却起重机的装有线性电动机的起重机的冷却控制装置及其控制方法。本发明的冷却控制装置由下列各种部件组成：固定元件；可动元件；编码器；编码器周围的传感器部件；A/D转换部件；控制器；D/A转换部件；以及可动元件的激励器。 An apparatus for controlling cooling of a gantry having a linear motor includes: a stator provided with a first temperature sensor, having a heat sink and a cooling fan at predetermined portions of an X-axis and an Y-axis linear motors; a mover provided with a second temperature sensor, having a heat sink installed on the upper surface of an X-axis and a Y-axis linear motors; an encoder for sensing a position and velocity of the mover; an encoder periphery sensor part for measuring surroundings (a temperature, a humidity and a pressure) of the encoder; an A/D converter for receiving a first and a second temperature signals and converting them from an analog signal to a digital signal and outputting the same; a controller for controlling a drive signal outputted from a mover driver unit to control the velocity of the Y-axis linear motor and the X-axis linear motor; a D/V converter for converting digital signals, that is, a cooling fan control signal and an air valve control signal to a plurality of drive signals, that is, analog signals; and a mover driver for providing the drive signal to a coil block.