Stepping motor in use process will appear some faults or problems, such as when you've turned on the power, but stepping motor motor does not turn, this is one of fault phenomenon. Then you know stepper motor motor do not transfer to what causes it, and how should solve it, let's step progress motor manufacturer -Shanghai four macro electric appliance in view of the different possible causes, answer one by one to you. 1, the power indicator light adverse: check the power supply circuit, confirm the power supply is negative polarity link is correct, the power cord connection is reliable. 2, segment is too small, so this will have to choose the right segmentation, the appropriate subdivision can be. 3, whether the current setting is too small, when the requirements in the selection of current selected current. 4, drive have protection: to electricity, can't solve, a reference to alarm indicator box. 5, can make high end level: control driving side can make port level for low or suspended. 6, can't response control signal: lift control signal amplitude, high and low level control signal time is described conform to the specifications. When step motor malfunction, we first is to analysis, and then look at the phenomenon of performance based on the actual performance and experience to judge which may be caused by several reasons, find pertinent to determine the causes of the failure came, so as to better solve the problem. Stepper motor motor does not turn the reasons and solutions to 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: