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introduction：Air conditioning thermostatIs programmed to edit，Use a program to control and send various signals to the actuator，Thus to achieve the purpose of controlling air conditioning fan side pipe and electric two-way valve。 Principle of motion： The temperature controller is an electrical switching device that controls the temperature of an air-conditioned room。The temperature range in the air-conditioned room controlled by the temperature controller is generally in18℃--28℃。The temperature controller commonly used in window air conditioning is based on the principle of pressure action to push the contact on and off。Its structure consists of bellows、Temperature sensing bag（Test tube）、eccentric、Microswitches, etc., constitute a sealed induction system and a system that transmits signal power。 Control methods are generally divided into two types；One is controlled by the temperature change of the object being cooled，Steam pressure type temperature controller is used，The other is controlled by the temperature dif
2017-07-12 Reading quantity 285
introduction：Programmable controller（Programmble Controller）For shortPCorPLCIt is an electronic system for numerical operation，Specifically designed for use in industrial environments。It uses a memory that can be programmed，Used to store logical operations and sequence control during execution、timing、Instructions for counting and arithmetic operations，And through digital or analog input(I)Sum output(O)port，Control various types of machinery or production processes。Programmable controller is developed on the basis of electrical control technology and computer technology，And gradually developed into a microprocessor as the core，Automation technology、Computer technology、New industrial control device integrated with communication technology。At present，PLCIt has been widely used in the automatic control of various production machinery and production process，Become one of the most important、The most popular、The most widely used industrial control devices，It is recognized as the three pillars of modern industrial automation（PLC
2017-07-12 Reading quantity 289
introduction：Panasonic servo driverDescription and solution of the fault： 1、Panasonic digital AC servo systemMHMA 2KW，Power on the machine when testing，The motor vibrates and makes a lot of noise，And then the drive appears16Number alarm，How to solve? This phenomenon is usually due to the drivers gain setting too high，It produced a self-excited oscillation。Please adjust the parametersNo.10、No.11、No.12，Appropriately reduce system gain。 2、Panasonic AC servo drive is powered on22Number alarm，why? 22The alarm number is an encoder fault alarm，The causes are generally： A.Theres a problem with the encoder wiring：disconnection、short-circuit、Misconnection and so on，Please check it carefully; B.Theres a problem with the encoder on the motor：malposition、spoilage，Please send for repair。 3、Panasonic servo motors operate at very low speeds，Sometimes fast, sometimes slow，crawling，What should I do?? Servo motor crawling phenomenon is generally due to the system gain is too low caused，Please adjust the parametersNo.10、No.11、No.12，
2017-07-12 Reading quantity 279
introduction：Computer controller，It is a remote switching product，A network card is used with its computer controller，Remote boot can be achieved through LAN，No matter how far away the computer being accessed is、In what position，Do not need to be on the same LAN，The external network can be started and shut down at any time。 Operation method： According to the1#key，Its the equivalent of manually pressing the start button on a computer panel，Computer boot。 According to the2#key，Its the equivalent of manually pressing the start button on a computer panel，Computer shut down。If the computer is already turned off，The command is displayed as invalid。 According to the3#key，You can change the ring time。I need to remind you that，The average phone doesnt ring longer than that50seconds，If it goes over, it hangs up automatically，Therefore, remind everyone not to exceed the setting of the bell time50seconds。 press4#key，You can change the login password，The default login password is123456 ，It is best to change to6Number of other passwor
2017-07-11 Reading quantity 305
introduction：Computer controller design requirements： 1）Support a smaller scale、But the function is relatively completeRISCInstruction system，The number of commands must not exceed32article； 2）adoptI/OPort independent addressing mode； 3）System bus routeCPUBus extension formation，Bus cycle fixation； 4）Do not support interrupt andDMAFeature； 5）The combinatorial logic control mode is adopted； 6）Ignore reset circuit、Clock circuit and timing circuit design，However, it is necessary to specify the requirements for timing signals。
2017-07-11 Reading quantity 313
introduction：Variable frequency constant pressure water supply controllerMatters needing attention： 1、Panel and keys： PVWindow Displays the measured value，SVThe window displays the set value。“SET” Set keys for parameters，“ ▲ ”and“ ▼”Add and subtract keys for two numbers，In parameter setting state，“MOD”Bond sum“ ” Key is the parameter page turning key；In normal working condition，“ ”The key is a display mode conversion key，Used to convert the display pressure value and the output frequency value。 2、Operating status light Four pump operating status lightsP1、P2、P3、P4Represents four pumps，When the indicator light asks green, it means that the corresponding pump is working in frequency conversion mode，When the indicator light is red, it indicates that the corresponding pump is working in power frequency mode。When working at second stress（Fire pressure）Status time，ALThe indicator shows green.；When water is scarce（Shut down）Terminal on，ALThe indicator shows red.，At the same time, all output controls of the con
2017-07-11 Reading quantity 249
introduction：The invention belongs to the technical field of optical fiber sensing and optical fiber communication，In particular, a polarization controller is disclosed。The polarization controller，Including base、Optical fiber、Fiber winding axis and rotation axis，It is characterized by：The optical fiber isG657Bend insensitive fiber，The fiber winding axis is three，The three shafts are respectively occluded with the stepper motor gear fixed below them。The beneficial effects of the invention are：Compared to ordinary manual polarization controllers，The invention can realize electric adjustment，Because the regulation of the invention is actually realized by adjusting the stepper motor，The stepper motor is operated by the driver program，therefore，The invention can also realize the purpose of remote adjustment through a control program。The invention can be electrically adjusted，You dont need pressure，Structural stability，The optical fiber is less damaged，And not subject to temperature、Humidity affects the polarization controller。
2017-07-10 Reading quantity 317
introduction：A controller for a touch screen sensor。The controller includes a voltage generator for generating a first voltage signal and a voltage generator for output a first voltage signal so that the first voltage is in the first direction(Such asXdirection)At least one output applied to both ends of the resistance layer of the sensor。The controller also includes an input for receiving a second voltage signal，The second voltage signal indicates when the sensor is touched，The voltage of the resistance layer at the touch position is measured by the sensors measuring electrode。The processor uses the second voltage signal received during the first measurement cycle to determine the coordinates of the touch position in the first direction(Such asXcoordinate)。concretely，The coordinates are determined by determining the attenuation of the first voltage signal in the second voltage signal。The first voltage signal is generated so that the first voltage applied to both ends of the resistance layer is a time-varying voltage dur
2017-07-10 Reading quantity 314
introduction：Constant pressure water supply controllerIt is a pump variable frequency controller specialized for constant pressure water supply。The constant pressure water supply controller can make the water supply system run smoothly and reliably，To achieve a true sense of unmanned automatic circulation pump、Variable frequency operation，Ensure the optimal operation efficiency of each pump and the stable operation and start of the equipment，Eliminate starting high current shock，Reduce the average pump speed，Thus, the service life of the pump can be extended，Eliminates the water hammer effect during start-up and shutdown。 With the rapid development of motor control technology and programmable controller，And its wide range of applications、Powerful function、Easy to use，It has become one of the main devices of modern industrial automation，It is widely used in industrial production，In other fields（Such as civil and home automation）Its application has also been rapidly developed。 The application of motor control techn
2017-07-10 Reading quantity 244
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