Working principle of the air-filled type precision air conditioning -

by:KEBO      2020-04-26
Air-cooled precision air conditioning is in view of the special air conditioning design of modern electronic equipment room, its working accuracy and reliability are much higher than common air conditioning. As everybody knows, put computers in the computer room equipment and SPC exchange products, etc. , composed of electronic components. To improve the stability and reliability of the equipment used, the environment must be strictly controlled in certain range of temperature humidity. To room temperature and relative humidity control in the plus or minus one degree Celsius, thus greatly improving the life and reliability of the equipment. A, working principle and structure of stepper motor is a kind of electrical pulses into angular displacement of the actuator. Stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed point ( Called & other; Interval Angle & throughout; ) , its rotation is based on the Angle of the fixed step by step. About the type of air conditioning wind deflector by two groups of two stepper motor drive, upper and lower wind deflector driven by a stepper motor, the control circuit, when issued & other The wind swing & throughout; Instruction, MCU pin corresponding cyclical low frequency high level, in turn through a reverse drive ic1 13 ~ 16 feet, driving a stepper motor quickly opened or closed, or slower bobbing up and down. The stepper motor coil is composed of four groups, as four phase eight step motor, eight every rotation need CPU output pulse. Second, the quality testing more than the type air conditioning use the stepper motor, although its size, color, size, lead plug appearance, fixed way, coil resistance is different, but the working principle and testing method are the same. In the press of a remote control ( Or operation panel) & on the other; The wind swing & throughout; Button, measuring computer board stepper motor power supply voltage socket, normal in each phase are + 12 v, if the stepper motor issue & other Da, da & throughout; Voice or no voice, usually indicates stepper motor damage.
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