Stepper motor as stepping motor characteristics decided initial speed cannot too tall, especially with large load inertia cases claims velocity under 1 r/s, this impact is small, also has great impact on system, and the acceleration is too big overshoot, simple to locate banning due and must pause between the motor forward and rotary moment without will overshoot caused by reverse acceleration is too big. Stepper motor the cause of deviation in: a, change direction when pulse, were characterized by any one direction, but a change of direction is accumulative error, and the more the more partial; Second, the initial velocity is too high, the acceleration is too big, cause sometimes lose step; Three, on the occasion of synchronous belt software compensation too little or too much; Four, the motor power is not enough; Five six, drives, controllers, troubled cause misoperation troubled cause; Seven, software defect; Has the following solutions: 1)Stepper motor drives the direction of the general and the pulse signal must request, such as: the direction signal in the first pulse rising or falling,Different drive requirement is different)Few microseconds identified before arrival, otherwise there will be a pulse by operation point of view, in contrast to the actual need to, finally failure phenomenon characterized by more walk more wide, subdivide the smaller, the solution mainly use software changes of pulse logic or delay. 2)For step motor characteristics decided to initial speed cannot too tall, especially with large load inertia cases claims velocity under 1 r/s, this impact is small, also has great impact on system, and the acceleration is too big overshoot, simple to locate banning due and must pause between the motor forward and rotary moment without will overshoot caused by reverse acceleration is too big. 3)According to actual condition adjust compensation parameter values, (Because of the synchronous belt elastic deformation is bigger, so changes direction plus compensation must be required)。 4)Appropriately increase the motor current, and improve the drive voltage (Pay attention to selecting motor drive)Choose some torque of the motor. 5)System trouble cause the misoperation of controller or drive, we can only try to find out the source of trouble, drop the trouble toSuch as shielding, increase the spacing interval, etc. ), block communication way, enhances own anti disturb ability, common ways: (1) with double lines replace conventional wire shielding wire, system in line with big current or voltage change wire separate wiring, decline in electromagnetic disturb ability. (2) from the grid with the power filter trouble wave filtering, and under the conditions permit the input terminal of electrical equipment and power supply filters, falling within the system between various equipment trouble. (3) between the equipment best photoelectric barrier equipment of signal transmission, under the conditions permit, the pulse and direction signals had better use finite difference method and photoelectric barrier to transmit signal. In the inductive load (Such as electromagnetic relay, solenoid valve)With resistance capacity to absorb or discharge circuit quickly, perceptual load in the first moment can happen 10 to 100 times the peak voltage, if operating frequency in more than 20 KHZ. 6)Do some fault tolerance software, the influence to eliminate.
