Martin Pinkston wrote: > The stepper motors are thought to be MAE motors. I have gone to MAE web site > and I can't find the motors. No surprise there, they are over 20 years old. > But I think they are either 2 or 3 amp motors. The MS3 in the model number > makes me think 3 amp motors. These motors have 4 wires feeding them red, > green, black and white. They are 6.5 ohm across the two fields. The physical > size of the motors are 3.5" in diameter and 4" long with an output shaft out > the face and back. > If these are classic stepper motors, then you should be able to re-use them, but they may be quite sub-optimal. 3 A at 6.5 Ohm is 19.5 Volts. These motors may be pretty slow compared to more modern motors. > If you give me about a half hour, (it's now 10pm est) I will post pictures > of each card front and back on my blog. I have 3 or so PDF files which > describe the pin out config. I can not post pdf files on my blog, but I will > be happy to send them to you in a .zip file if you wish or one at a time, > what ever works. > > Stepper motors use step, direction and enable. Chop drives use pulse, pulse, > pulse, pulse. That 4 pulse signal is fed into the drive cards. > No, not true. It is just the way the drive is controlled. Many drives control the chopper internally, these may have both the steps and the chopping controlled by the main controller. Since these are not going to be microstepping drives, I would strongly suggest you get rid of them. Their performance will be SO FAR below a modern microstepping drive that it is hard for the uninitiated to believe there could be such a difference. The only possible reason to try to re-use these drives is so that when you finally move up to a Gecko drive you will appreciate how good their drives are!
Jon ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
