interfacing stepper motor with 89c51

stepper motor interfacing with 89c51

hi all,


i don't know how to connect tyhe wires of the stepper motor along with the 89c51 . there are totally 6 wires in it . and the motors type is KP39HM4-018 and it seems to be japanese make that works for 5v. the colors of the wires are 1 brown , 2 red , 1 black , 1 yellow and 1 orange . where can i get the exact dataheets for my motor type?can anyone suggest me?is there any forum for stepper motor,where i could get more information?

kp39hm4-018

i think the two red wires should be connected to the supply(5v) the remaining 4 wires black,brown, yellow and orange if connected as it is the motor will not run but instead move fwd and backward, so these wires should be connected accordingly.

stepper motor interfaced with 89c51

hi John,

I can't quite reach the datasheets of this motor, but I guess it's like any other center tapped 6 wire stepper motor.

Mainly this motor is made of 2 individual coils, for each coil you'll have 2 ends and one wire attached to the middle of the coil, thats what makes it capable of performing many modes of operation according to ones needs.

To check if I'm correct you may simply use an avometer and measure the resistance between different pairs of wires.

If I'm correct then you should find that from one of the red wires to 2 of the other colored it gives you some resistance, while the other 2 wires will give you an open circuit, check for the other red wire and you will find that it has a resistance value to the 2 remaining colors.

To check for the sequence I guess you will have to do it by experiment.
1-Just wire both reds to +3V ( just to keep the current dissipation low) and all the other wires floating.
2- connect one of the colored to the ground (it should start moving)
3- unplug that wired and switch another to the ground, if the motor moves right then it's ok , if not then try another wire , untill you get a full rotation.

check google for more info, you might just find a page mentioning something about the sequence of colors you should follow.

Regards,
Salam.

interface stepper motor with 8951

check at www.epanorama.net