Single polarity can drive with dual polarity the gm?

Single polarity cannot be used instead of bipolar drive,drive and bipolar drive can be used instead

of a single polarity drives.Because of the two kinds of drive current distribution in different

ways,the effect of Y series three-phase asynchronous motor is different also.Single polarity drive (for example: HSM8672),with one polarity connection is dedicated to four phase stepper motor.For example,there are five lines,six lines,eight line lead electric motor cooling fan ways four phase stepper motor,can use

either single polarity drives,and to be able to use bipolar drive (for example: HSM1524-8).However,to achieve the best efficiency,or targeted to select the drive as well.Segmentation principle of stepping motor drive is what?If using subdivision driver,under the conditions of 10 subdivision drive the motor,step motor each run A micro,current changes in the winding is only 0.3 A,rather than 3 A,and the law of electric current is A sine curve changes,thus greatly improve the motor vibration and noise,therefore,on the performance of advantages is the real advantages of segmentation.Because subdivision driver to precisely control the motor phase current,so the driver electric motor cooling fan should have quite high technical requirements and technical requirements,the cost will also be higher.Note that there are some domestic drive "smooth" is used to replace the subdivision,sometimes also called segmentation,but it is not really a subdivision,hope the broad masses of users must distinguish the nature of the different:1."smooth" is not precise control of the motor phase current,but the rate of change of the current slow some,so "flat" do not produce micro step,and subdivision microstep can be used for accurate positioning.

After 2.The motor phase current is smooth,can cause the drop of the motor torque control and not only do not cause the decline of motor torque,on the contrary,the torque will be increased.For automated motion control system of step motor,there are mainly two phase,three-phase,four,five phase hybrid stepping motors.Must match the corresponding stepper motor drives,to be able to accept the controller (CPU,PLC,etc.) the digital signal.In order to reduce the

stepper motor work noise,usually using subdivision driver,especially at low speed working electricalmotor1.blogspot.com condition is

more noticeable.Many people know about "segmentation" is not special,just think,segmentation is in

order to improve the precision degree,actually otherwise,segmentation is mainly to improve the

performance of the three-phase asynchronous motor,now shows as follows: stepping motor subdivision

control is precisely controlled by the driver of stepping motor phase current,the two-phase motor,for

example,if the rated current of motor is 3 a,if you are using a conventional drive (such as a common

mode of constant current chopper) driving the motor,every step motor running,in its winding current

will mutations from 0 to 3 a or 3 a mutation to 0,the great changes in phase current,is bound to

cause vibration and noise of motor running.