View Full Version : stepper motor

09-09-2008, 07:46 AM
I have a stepper motorˇ that I took from an old scanner.ˇ It has six wires.ˇ Can someone please guide me into connecting and programming it to the basic stamp (bs2)?

Jack Jordan
09-09-2008, 08:01 AM
The first thing here is to seperate the six wires into two groups of three (two center-tapped coils). This is quickly done by measuring the risistance between each wire. When there is no reading (open circuit) then the two wires belong to different groups. Fortunately many manufacturers already group the six wires into two groups of three as they leave the motor. So the next step:

Measure the ristance between the wires of each group of three. The center tap will have equal restance to both ends.


09-09-2008, 09:28 AM
I see that they are seperated into to sets: black, brown, red; and orange, red, yellow.

Jack Jordan
09-15-2008, 06:28 AM
Check the ristance on each group. Two will have equal measurments to the third.

This makes the third the center tap, this is the wire you apply motor rated voltage.

If you dont have a datasheet you will have to play until you find the correct sequance to make the motor rotate.
Stepsˇˇˇˇˇˇ DATA %1100, %0110, %0011, %1001ˇˇˇ '1s are the coils that will be energized

Hope this helps