Re: [APML]: Byers drive and the MototrakIV

["Tom Krajci" <krajcit@det5wg57.barksdale.af.mil>]

> From:          Mike Regish <mregish@map.com>

> Interesting...and a whole lot cheaper than a new motor. How many wires
> does the JMI motor have? This thing has 6 wires and a flat 6 pin female
> connector. Any idea if all those wires are being used? They must be
> there for something. I figure they might be there for the various rates
> or something.

Mike, check out this URL:  http://www.cs.uiowa.edu/~jones/step  to se 
how stepper motors work.  The six wires are all used.  (Two are 
probably identical - serving as ground/common to two sets of coils.)  
I'm betting that your type works when the four coils in the motor are 
energized in sequence (like a four cylinder motor).  The rate at 
which you energize the individual coils determines the rate of 
stepping.

Tom Krajci

PS.  What are the colors of the six wires?  That alone may help us 
determine the proper sequence to hook them up in.

Capt Tom Krajci
B-52 Intelligence Officer
"In God we trust, all others we monitor!"
http://spur.barksdale.af.mil