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. > > 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
