Method to Test Whether the Cause of Lost Steps is the Stepper Motor Itself

We need to determine whether the lost steps are caused by the stepper motor or by mechanical equipment error. Therefore, please perform the following test:

First, set the acceleration/deceleration and operating speed in your host controller to low values. Then, set up a running program and mark both the starting position and the home position of the motor. Run this program repeatedly. After several hours of operation, check if there is any deviation between the mark and the home position.

If there is no deviation: The issue is likely an unreasonable speed setting that places the motor's torque at a critical point, where it cannot provide sufficient torque, leading to lost steps. In this case, try reducing the motor's speed or replacing it with a larger motor.

If there is a deviation: There might be a problem with the motor or the driver. Try replacing the motor or the driver to test whether the deviation disappears, in order to identify whether the problem lies with the motor or the driver.

Note: Please check whether the equipment is affected by interference. You can try grounding or shielding the motor and driver, as well as moving them away from high-power equipment, to test if the lost steps problem disappears.

Updated on: 30/10/2025