On 2014-08-08 17:01, Peter C. Wallace wrote: > On Fri, 8 Aug 2014, Marius Liebenberg wrote: > >> Date: Fri, 08 Aug 2014 16:54:20 +0200 >> From: Marius Liebenberg <[email protected]> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <[email protected]> >> To: [email protected] >> Subject: Re: [Emc-users] Spindle control with 7i76 >> >> 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? >> > > You need to use the absolute component to force the spindle output to > always be positive. > Thanks I will do that.
While you are online, please. I take it that I have to use the velocity from the spindle encoder to get the spindle speed synchronized? What do I connect it to? > >> 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 <[email protected]> >>>> Reply-To: "Enhanced Machine Controller (EMC)" >>>> <[email protected]> >>>> To: "Enhanced Machine Controller (EMC)" <[email protected]> >>>> 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 >>>> [email protected] >>>> 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 >>> [email protected] >>> 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 >> [email protected] >> 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. > > > ------------------------------------------------------------------------------ > 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 > [email protected] > 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
