1, step motor noise particularly big; And there are no forces, stepping motor itself in vibration? If this happens, because step motor working in oscillation area, generally change the input signal frequency CP can solve this problem. 2, step motor in normal during low speed running, when the frequency is slightly higher in stepper motor stalling phenomenon? Encounter this kind of situation because more on step motor drive power supply voltage is high enough to cause; The input voltage is higher, can solve this problem, note cannot be higher than the stepper motor drive power supply side with the highest voltage; Otherwise it will cause burning stepper motor drives. 3, electrified stepper motor drives, stepper motors in jitter, can't work? In this case, the first check step motor winding is connected to the stepper motor drives have wrong; If there is no wrong to check whether the input frequency CP is too high; Whether lifting frequency design is unreasonable, the reference frequency lifting design; All these reasons are not, may be burned stepper motor drives, please contact the supplier maintenance. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone: