RE: [CAD_CAM_EDM_DRO] Stepper motors only turning one direction

I'm guessing, but, it sounds like the direction signal is not getting
through to the drive circuitry.

Since you have tested that the dir voltage is changing with direction,
ensure that it is getting to the Centent drive. If the dir goes through an
opto-isolator or buffer. check that the dir voltages is getting past that.

Cheers,


Peter Homann
mailto:Peter.Homann@...
Adacel Technologies Limited,
250 Bay St, BRIGHTON, 3186, AUSTRALIA
http://www.adacel.com <http://www.adacel.com>
Telephone +61 (3) 8530 7777, Facsimile +61 (3) 9596 2960
Mobile 0421-601 665

> -----Original Message-----
> From: coldfusionracingproducts [mailto:gokarts164@...]
> Sent: Monday, 7 June 2004 1:17 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Stepper motors only turning one direction
>
>
> Here is my setup:
>
> Centent Cn0143 Microstepping drives (older geckos)
> 680oz Camtronics Steppers
> 24v power supply
> PC with Mach2
>
> My motors are only turning in one direction. The distance traveled
> is perfect though. When I jog 1 inch left then 1 inch right, it
> makes it 2 inches right...
>
> I measured the signals coming out of the Parallel Port and I am
> getting changes in the direction voltage.
>
> Any advice?
>
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> wanliker@..., timg@...
> Moderator: pentam@... indigo_red@...
> davemucha@... [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
>
>
>
>
>
>