Abstract: The failure phenomenon of the high-speed refrigerated centrifuge turns on the power of the centrifuge. After pressing the start key, the centrifuge cannot start. Desktop high-speed refrigerated centrifuge analysis and maintenance Turn on the power of the centrifuge. After pressing the start button, the rotor of the centrifuge cannot run, but the compressor of the centrifuge can work normally to cool.
Therefore, the analysis of the fault is mainly focused on the motor of the rotor and the control of the motor.
Because there is no relevant high-speed refrigerated centrifuge maintenance information and professional maintenance tools, is there any problem in the control of the motor
Not sure. Therefore, first check the motor of the rotor. After measuring with a multimeter, it can be known that the circuit of the motor is normal, that is, there is no problem with the coil of the motor. Then check the carbon brush of the motor, and after removing the carbon brush from the base of the rotor, no common fault phenomenon is found. Therefore, it can basically be determined that there is no problem in the motor of the rotor (normal hardware), so the cause of the failure can basically be determined to be a problem in the control of the motor, but the problem cannot be found and solved quickly under the premise of lack of information and tools, resulting Our equipment is not functioning properly.
Therefore, in order not to delay our normal work, we can only use existing data and tools to take some emergency measures. In the previous analysis, we know that the compressor of this centrifuge is working properly, and the motor of the rotor is also working normally. Therefore, we consider that the power of the high-speed refrigerated centrifuge can be directly added to the rotor motor without going through the faulty motor control part. After the transformation and implementation of the above scheme with common tools.
Power on the motor and start, the machine runs normally. Although the function of adjusting the speed at this time cannot be used, it basically does not affect our normal work. When summing up the failures, you should carefully check and analyze the causes of the failures. Under the premise that the fault cannot be eliminated in time, we can use existing resources to take some emergency solutions to ensure our normal work
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