Thanks Peter this solution works just great. I cannot get my drive to recognize the analog input but that is a setting that is fooling me somewhere. While measuring the voltage on the spinana signal I noticed that it stays at 0v when in reverse mode. I expected it to go positive for both directions. I also noticed that on halshow it does go negative. Must I fiddle the spindle out signal in any way or is it supposed to be always positive seeing that it simulates a pot?
On 2014-07-31 17:48, Peter C. Wallace wrote: > On Thu, 31 Jul 2014, Marius Liebenberg wrote: > >> Date: Thu, 31 Jul 2014 17:07:57 +0200 >> From: Marius Liebenberg <mar...@mastercut.co.za> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >> Subject: [Emc-users] Spindle control with 7i76 >> >> I am setting up my spindle on the lathe using the 7i76 spindle >> interface. The interface has one output for direction (F/R) but the >> invertor does not have a F/R input. I have to use two S inputs to make >> the inverter go forward or reverse. Is there a clever way with the 7i76 >> to do this. I dont want to fit more relays unless I have to. >> P.S. the input control is a voltage 0-10v. > Most VFDs can be programmed for F/R mode. If this feature is not available > with your inverter the 7I76 will need an external SPDT relay or SSR, I intend > to add this feature on the next 7I76 version but its not available yet. > > Wiring (for ground to activate) is > > ENA- --> Ground > ENA+ --> Relay COM > DIR+ --> +24V > DIR- --> Relay coil > Relay NC --> Inverter F > Relay NO --> Inverter R > > If the inverter F/R inputs can be driven with field outputs, (that is, they > can be actuated by +12 or +24V signals) you can use those instead of the > spindle control outputs > > > http://www.vishay.com/solid-state-relays/list/product-83812/ > > Are nice SPDT SSRs for these types of applications >> -- >> >> Regards /Groete >> >> Marius D. Liebenberg >> +27 82 698 3251 >> +27 12 743 6064 >> QQ 1767394877 >> >> >> ------------------------------------------------------------------------------ >> Infragistics Professional >> Build stunning WinForms apps today! >> Reboot your WinForms applications with our WinForms controls. >> Build a bridge from your legacy apps to the future. >> http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > Peter Wallace > Mesa Electronics > > (\__/) > (='.'=) This is Bunny. Copy and paste bunny into your > (")_(") signature to help him gain world domination. > > > ------------------------------------------------------------------------------ > Infragistics Professional > Build stunning WinForms apps today! > Reboot your WinForms applications with our WinForms controls. > Build a bridge from your legacy apps to the future. > http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Regards /Groete Marius D. Liebenberg +27 82 698 3251 +27 12 743 6064 QQ 1767394877 ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
