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What are the causes of lost steps in a stepper motor?
What are the causes of lost steps in a stepper motor?

Stepping motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. It is the main executive element in modern digital program control systems and has a wide range of applications. In the case of non-overload, the speed and stop position of the motor only depend on the stepper motor. The stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. It is the main executive element in modern digital program control systems. Very extensive. In the case of non-overload, the motor speed and stop position only depend on the frequency and pulse number of the pulse signal, and are not affected by the load change. When the stepper driver receives a pulse signal, it drives the stepper motor according to the The set direction rotates a fixed angle, called "step angle", and its rotation runs step by step at a fixed angle. The angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; at the same time, the speed and acceleration of the motor rotation can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation. Let's take a look at the reasons why the stepper motor loses step?

 

1. The stepping motor itself has insufficient working torque and has insufficient capacity to drive the load;

 

2. The acceleration and deceleration process of the stepping motor start and stop is insufficient, and the stepping motor loses step during the acceleration and deceleration process;

 

3. Insufficient power of the stepper motor leads to insufficient input power of the stepper motor to cause out-of-step;

 

4. The drive voltage of the stepper motor is not enough or the drive current is set too low;

 

5. The driver or controller receives signal interference;

 

6. Resonance of the stepper motor system causes the stepper motor's load carrying capacity to drop and cause out of step;

 

7. The signals of the driver and the controller do not match;

 

8. The backlash of the synchronous wheel or the gearbox or the backlash error of the backlash is not compensated in the program or the compensation value is wrong;

 

9. There is a problem with the control program itself.

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