I used optos to control on/off and direction on the a kb vfd. They worked OK. The inputs to that VFD AREN'T at normal logic levels, ie 0 and 5V, thus an isolator or relay is required.
On Fri, 2004-12-17 at 16:26 +0000, kadeshan wrote: > > Ok, I am going to order the Solid State relay from Fred today, I > have a vfd drive running a 3 phase motor. Here is a link to a > schematic for the control. I am assuming I run a 5v pin and ground > pin from the break out board to the SSR. Then where do I hook the > other terminals on the SSR to the vfd? Here is the link > http://www.kbelectronics.com/manuals/kbvf.pdf > > > --- In [EMAIL PROTECTED], "JamesCullins" > <[EMAIL PROTECTED]> wrote: > > It will disable the out signals in the absents of the charge pump > signal > > form Mach2. > > This signal is a tone of about 13 kHz. When Mach2 is reset the > signal > > appears and the out puts are enabled. If Mach2 isn't running then > you get > > nothing out. > > Jim > > ----- Original Message ----- > > From: "turbulatordude" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Thursday, December 16, 2004 7:39 PM > > Subject: [CAD_CAM_EDM_DRO] Re: Turning Spindle Off and On > > > > > > > > > > > > > > > > > ///What about opto-isolation? Wouldnt there be a risk of > damaging > > > the PC electronics wiring up auxillary equiptment directly to the > > > port? > > > > > > > > > All the SSR's I have looked at have opto isolation as well as do > > > Gecko's. > > > > > > > > > The Cambell board does offer additional features that may or may > not > > > be required. > > > > > > There are a lot of people who wire directly into the port, from > > > electronics hobbyists, to telescope people to machine tool people. > > > > > > Also, for my machines on machine tools, I keep them dedicated and > > > simple software loaded. > > > > > > If you plan to surf the internet and use your machine as a general > > > purpose machine, while you use your Bridgeport, you accept the > risk > > > of a virus doing bad things as well as having your registry > cluttered. > > > > > > > > > > Other breakout boards have the ability to control Solid state > > > relays however like the PMDX has no "watchdog" feature that > monitors > > > erroneous pulses from the PC (it didn't two years ago anyway and > they > > > didn't sound too concerned about changing it). > > > > > > > > > I'm not sure what signal the Cambell board does that > differentiates a > > > signal to the port from an erroneous signal. > > > > > > Dave > > > > > > > > > > > > > > > > > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > 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 > > > > > > > -- Kim Lux, Diesel Research Inc. 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/
