Noise interferes with people's normal conversation, reduces people's thinking ability, makes people fatigue, and affects people's sleep, rest and work. Vibration is the source of noise. We also suppress vibration while controlling noise, so we analyze the motor for everyone. When the noise is small, the big blue motor is combined with the vibration of the motor to describe it.
Improperly driving a stepper motor can easily cause the motor to emit "beep" noise and large vibrations.
When the stepper motor is driven, if the stepper motor is found to be at rest, its internal noise is very obvious, which is similar to the rapid change of the coil, which is generally caused by excessive coil current. For this case, an effective method is to reduce the current flowing in the motor coil. The specific method includes: setting the driver to automatically flow half-flow when the motor stops, reducing the driving current of the motor.
When driving the stepper motor, if the stepper motor noise and vibration are found to be obvious, check the following steps:
1. Whether the stepping motor and the driver are matched, this is very important: if they are not matched, the adjustment subdivision, driving current and speed of the following steps are likely to be in vain. In my own experience, I have encountered this situation. The Raytheon motor is driven by a different brand of drive. Under the same conditions, it always produces obvious noise and vibration, and drives the machine. The structure makes a loud noise. Therefore, it is recommended that when you choose stepper motors and drivers, it is best to buy them in sets, and make sure that you buy regular products. Now the same type of drive on the market, there are many manufacturers.
2, the current stepper motor driver is divided into digital and analog, the analog drive stepper motor is more noisy, and the digital is basically not. The reason is roughly that a digital DSP is added to the digital motor for stepper motor drive optimization. Therefore, if you want to ensure that the noise and vibration are as small as possible, it is recommended to use a digital stepper motor driver.
3. Correctly adjust the subdivision and current of the stepper motor driver. The larger the subdivision, the smaller the variation of the coil in the motor, which will reduce the noise. In the case that the stepping motor has enough torque to drive the load, the driving current should also be reduced as much as possible. The smaller the parameter is set, the smaller the variation of the coil current in the motor.
4, correctly set the stepper motor acceleration and deceleration, the highest operating speed. Experiments have shown that stepper motors are more prone to additional noise during acceleration and deceleration. The solution is to increase the acceleration and deceleration speed of the stepping motor under the condition that the stepping motor accelerates and decelerates without losing step.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
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