商洛附近想过夜电话联系

Hello! Welcome to the official website of shanteng transmission electromechanical Co., Ltd!
Set as home page Add to collection Website map Distribution: Foshan, Taiwan, Hong Kong
  • Office address: 3 / F, block D, east of Lianhe Avenue, Luocun street, Nanhai District, Foshan City, Guangdong Province
  • TEL:0757-63836968 / 86401667
  • MOBIEL: 15118744777
  • FAX:0757-86401607
  • EMAIL:2486877456@qq.com
  • The frequency converter can also cause the motor to burn out, the reason has these aspects

    Release time: September 26, 2020 16:24:31 source: Fuji motor second
    The heat dissipation of ordinary asynchronous motor depends on the fan behind the motor bottom for heat dissipation. If the motor operates at low frequency for a long time (that is, if the motor runs under the rated frequency for a long time, the motor speed is low, and the fan blowing air volume is small, so that the heat dissipation of the motor is poor, and if it is too hot, the motor will be burned. If there is a problem with the motor, the motor current will increase. If the maximum current of the inverter is exceeded, the inverter will implement protection and stop the output, and report a fault code to tell the user.
     
    The converter shows OC, which means over-current. The solution is to change the motor into a frequency conversion special motor, or add a cooling fan to the motor. Or a higher power motor.
     
     
    Frequency converters can also cause motor burnout
     
    In fact, the motor fault is not caused by the motor itself, most of which are caused by the nonstandard debugging of frequency converter or the use of non frequency conversion motor when the variable frequency motor is used. There are mainly the following situations:

    1. Use ordinary motor as frequency conversion motor

    Because the cooling fan of the ordinary motor is connected with the rotating shaft, when the frequency converter is used to regulate the speed, the speed is unstable, which can not reach the rated speed of the motor, so the cooling fan can not play a normal role, resulting in poor heat dissipation of the motor; in addition, the ordinary motor is not designed according to the requirements of frequency conversion, so that the motor is heated or burned.

    2. Variable frequency motor and frequency converter can be used together without debugging

    Vector control and V / F curve control are the two most commonly used methods of motor control by frequency converter. In each control mode, the motor type (synchronous, asynchronous, with or without encoder), rated power, rated voltage, rated current, speed or pole number, rated frequency, maximum operating frequency, acceleration and deceleration time of motor starting and stopping, and protection of motor controlled by frequency converter It is necessary to set carrier and frequency. After these parameters are set, we can choose vector control or V / F control. When selecting vector control, the motor should be paired with the frequency converter for dynamic self-learning or static self-learning with load. After self-learning, the motor can play the accuracy of vector control by cooperating with the inverter; when selecting V / F control, self-learning is not required, and the parameters are adjusted and the motor is powered on directly.

    3. The running direction of variable frequency motor fan is inconsistent with the rotation direction marked on the fan

    Fan can not play a role, resulting in poor heat dissipation of the motor, the heat generated by the motor can not be sent out, causing the motor to heat or burn out.

     

    Last article: Suggestions on measures to solve the problem of reducer
    Next: Shanteng speed reduction motor is the most suitable商洛附近想过夜电话联系

    
    曲靖洗头房

    商洛附近想过夜电话联系