Servo motor is the executive element of mechanical production equipment, and it is widely used in servo systems. When using servo motor, because I don’t know much about the principle of servo motor and the structure of servo motor, I feel that there is a big problem when servo motor works. Many people ca n’t help worrying about the onset of fever. Actually, fever is a common phenomenon during the operation of servo motors, but do you know what kind of heat is normal? How can we reduce the heat of servo motors? Fever is to reduce copper and iron losses. There are two directions for reducing copper loss, reducing resistance and current. This requires that motors with low resistance and low rated current should be selected as much as possible in the selection. For two-phase motors, series motors need not be connected in parallel. But this often conflicts with torque and high speed requirements. For the selected motor, the driver’s automatic half-current control function and offline function should be fully used. The former will automatically reduce the current when the motor is at rest, and the latter will simply block the current.
The extent to which the servo motor controller heats up depends on the internal insulation level of the motor. The internal insulation properties are damaged at high temperatures. Therefore, as long as the interior does not exceed 130 degrees, the motor will not be damaged, and the surface temperature will be below 90 degrees. Therefore, the surface temperature of the servo motor is normal at 70-80 degrees. The simple temperature measurement method is useful with a thermometer, and can also be roughly judged: you can touch it with your hand for more than 1-2 seconds, not more than 60 degrees; you can only touch it with your hands, about 70-80 degrees; It will be more than 90 degrees; of course, you can also use a temperature measuring gun to detect.
In addition, because the current waveform of the subdivided driver is Air conditioning fan motor suppliers close to the sine, there are fewer harmonics, and the motor will generate less heat. There are not many methods to reduce iron loss, and the voltage level is related to it. Although a high-voltage driven motor will improve the high-speed characteristics, it will also increase the heat generation. Therefore, a suitable driving voltage level should be selected, taking into account indicators such as high speed, stability, heat generation, and noise.
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