I bought this stepper motor because it was good looking and
very low cost. It came without a data sheet or any info.
There are 6 wires so I figured it was a uni-polar just as
I hoped. But, when I measured the resistances between the
wires I got confused. It seems that there are 5 coils of
about 15 ohms each and they are all connected to the yellow
wire. I measured about 30 ohms between any two of the other
wires. When I rotate the shaft, it feels like a stepper with
the 'hopping' from one index point to the next. It is a
Seagate 73192-193MCCMAT 52629-002DC. I can't find any
info through Google either. I hope someone here can help
me figure out how to drive it. What kind of motor is it?
Herb
That is a 5 phase stepper. Not very common in the hobby world, and the drivers are hard to find. But with a unipolar 5 phase it would not be hard to make one.
Scroll down this page to multiphase motors.
Thank you jremington for the answer and the link to info. That makes sense.
Herb
jremington:
That is a 5 phase stepper. Not very common in the hobby world, and the drivers are hard to find. But with a unipolar 5 phase it would not be hard to make one.Scroll down this page to multiphase motors.
I had an old Emco F1 CNC machine. It used 5-phase steppers to get smother stepping. It must be 35 years old or older.
Paul