Electrical network breakdown of stepper motor drives primary role is to advance the accuracy of stepper motor. Domestic some driver adopted & other; Smooth & throughout; Instead of segmentation, and some also called segmentation, but it is not really a subdivision, hope the broad masses of users must identify both the nature of different: 1. “Smooth & throughout; Is not accurate control of the motor phase current, only the rate of change of the current slow some, so & other; Smooth & throughout; Doesn't happen micro step and subdivision microstep can be used for accurate positioning. 2. After motor phase current is smooth, can cause the drop of the motor torque and subdivided control not only do not cause the decline of motor torque, on the contrary, the torque will be increased. Drive after segmentation of the primary advantages as: eliminate the low frequency oscillation of the motor. Low frequency oscillation is a stepper motor (Especially the reactive motor)The intrinsic characteristics of, and segmentation is the only way to eliminate it, if your stepper motor sometimes have to work in the resonance region (Such as arc), choose segmentation is one of the selected drive. Progress in the output torque of the motor. Especially for three-phase reactive motor, the torque progress about 30 - than when not subdivided40%. Advances in the resolution of the motor. Due to reduced step Angle, the evenness and progress step distance & lsquo; The resolution of the progressive motor & lsquo; Be self-evident. Many users mistakenly assume that the higher the segmentation of stepper motor drives, the precision of the stepper motor, the higher the mountain club electrical engineers claim customer in fact this is the idea of a fault, for example, stepping motor drive higher segment can reach 60000 pulses a turn, the stepper motor is actually unable to distinguish the accuracy, when the drive is set to 60000 pulses/roll, under several pulse stepper motor drives, stepper motor step, so do not progress the precision of the stepper motor. Stepping motor subdivision skills is essentially an electronic damping, its primary purpose is to weaken or eliminate the low frequency oscillation of stepper motor, progressive motor work precision segmentation skills of only one function, by the way. Subdivided step motor running when the actual elongation is one of the basic steps from the Angle of a few minutes. (Two phase stepper motor is apart from the Angle of the basics is 1. 8°1, that is, a pulse. 8°, if do not have a segment, it is 200 pulse walk 360 & deg; , segmentation by controlled by accurately, the drive of the motor phase current, has nothing to do with the motor, if be 10 subdivision, send a pulse motor is 0. 18°, namely 2000 pulse walk 360 & deg; , the accuracy of the motor can reach or near zero. 18°, but also on other factors such as subdivision current control precision of the subdivision driver. Different manufacturer of subdivision drive accuracy may be different greatly; The more difficult it is to fine grade, the greater the precision control. Etc. Three-phase stepper motor from the Angle of the basics is 1. 2°1, that is, a pulse. 2°, if do not have a segment, it is 300 pulse walk 360 & deg; , if is 10 subdivision, send a pulse, motor 0. 12°, namely 3000 pulse walk 360 & deg; , etc. When actual use in motor, if the speed demand is higher, and the precision and stability requirement is not high, don't have to choose high subdivision. When in actual use, if speed is very low case, should choose large subdivision, guarantee the smooth, reduce vibration and noise. )
