With the continuous development of science and technology, stepper motors are becoming more and more advanced, but sometimes there are some problems, resulting in the inability to work, so how can we determine whether the stepper motor is bad? What are the common detection methods? The following Vacuz to introduce you to it! Hope it can help everyone!

Pump motor

Stepper motor can not work properly, you can generally take the following two methods to check.

1. Without connecting any equipment and wires, separate each wire of the stepper motor, do not touch the wires, and turn the shaft by hand. A good motor should only require a certain amount of force to rotate smoothly, with no jam in the middle. If a position in the middle is stuck or completely unable to turn, it means the motor is bad, probably due to bearing displacement and internal rotor and stator wear. The damage should be caused by excessive external forces. The impedance of the two “adjacent” phases can be measured with a multimeter and should both equal the coil impedance given by the product. In addition, a load test is required. The specific test parameters need to be combined with the load torque and motor torque.

2. Screw all the wires together. The larger the motor, the greater the force required to screw, generally stepper motors simply can not be screwed with human power, the more wires screwed together, the greater the force required, if not effective, indicating that the coil is bad.

For stepper motors, in addition to the above methods, but also need to carefully observe its rotor, if there are gaps in the rotor, not in place, the stator embedded in, the dynamic performance of at least 80% discount. This time it is easy to lose step, it is recommended to replace. Then there is the stepper motor assembly can not knock, it is easy to damage the encoder inside. Stepper motor power coil is burned out the probability is quite low, encoder and connector damage is more common, common stepper failure is encoder failure.

Automatic winding machine for single station model balance car motor

Stepper motor failure how to determine? What are the inspection methods? These are the common methods, I hope these simple knowledge can help!

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