Tom Hubin: Thanks. I have no voltage or current rating info.
Robert ----- Original Message ----- From: "Tom Hubin" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 30, 2004 9:06 AM Subject: Re: [CAD_CAM_EDM_DRO] Steper motor wiring > > Robert Williams wrote: > > > > If I try to determine coil terminals by connecting 12v car battery (negitive) to a stepper terminal and touching other stepper terminals with the positive, WILL I HARM THE MOTOR?? If not what reaction should I look for when coils are energized?? Motor shaft is connected to X axis... will the axis move?? > > > > RobL > > Hello Robert, > > 12vdc is too high for many windings. Damage is possible and likely. > > What is the listed voltage and current rating for the motor? > > Try a 1.5vdc D cell battery. Any stepper that can run a mill will handle > that with ease. You should expect nothing to happen if the leads are not > part of the same winding. You should expect the motor to move slightly > then stop if the leads are part of the same winding. If you rotate by > hand, the shaft will settle into only certain positions for each pair of > connected leads. > > You should be able to connect lead pairs in an order that rotates the > shaft one step at a time. > > An ohmmeter is better for testing. That way you not only know which > leads are part of the same winding but you also know the resistance and > which, if any, is a center tap. > > Tom Hubin > [EMAIL PROTECTED] Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
