Sometimes a change of parts is easy. Sometimes not. In this case the only issue is a 24V max relay voltage limit as the new drivers are rated max 28V. The old ones were significantly higher voltage but discontinued. All fit. Software doesn't know the difference.
John > -----Original Message----- > From: John Dammeyer [mailto:jo...@autoartisans.com] > Sent: October-16-22 1:54 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re: [Emc-users] stmbl servo drives - want to buy... > > Which is why I ordered 500 of the BTS70102EP dual relay drivers and only > started on the board upgrades > when the parts were in _my_ inventory. > > So anyone who wants to design a new version of the STMBL, or anything that > uses hi-tech parts, should > decide to make say 100 and order the parts. When they have arrived, then > design the PC boards and get > them made. > > It means sitting on a lot of dollars of inventory for as long as a year. > Just the way it is now. > > John > > > > > -----Original Message----- > > From: Markus Bechtold [mailto:mar...@r-bechtold.de] > > Sent: October-16-22 1:27 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] stmbl servo drives - want to buy... > > > > There are newer versions of the stmbl and multiple add ons but the > > development is on hold at the moment > > because there is a problem: selecting parts, design the board and just > > before ordering boards most of the > > parts will become unoptanium rinse and repeat. I hope it will change in the > > next month. > > > > > On 16. Oct 2022, at 14:03, Markus Bechtold <mar...@r-bechtold.de> wrote: > > > > > > This problem with the power stage is solved there is a solution with a > > > new High power powerstage > > > > > > The main problem at the moment is that some critical components like the > > > 2 stm32 are not available (as > of > > today there is a delivery date 10.03.2023) The stmbl uses some features of > > this stm controllers like the > > internet HIghspeed comperators and Shunt opamps. > > > Hopefully there will be new stmbl as short as possible if the craziness > > > of the chip market will normalise and > > you have not to pay something like 45? for a stm32 > > > > > > > > > > > >> On 16. Oct 2022, at 08:41, Roland Jollivet <roland.jolli...@gmail.com> > > >> wrote: > > >> > > >>> Now. Why is it not available? Two reasons. The key thing about the > > >>> STMBL for 3 phase AC servos was that it used single driver for all three > > >>> windings. Probably originally designed for washing machines. It was > > >>> discontinued. A different one with slightly lower power was available. > > >>> There are others but different pinout so board change. > > >>> > > >> > > >> Yes, the same style driver chip found in all the chinese drives too. A > > >> 27pin PDIP > > >> I opened a Chinese drive up and it looked to be a text-book > > >> implementation > > >> of one of these drivers. With very little noise suppression though. > > >> > > >> _______________________________________________ > > >> Emc-users mailing list > > >> Emc-users@lists.sourceforge.net > > >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > > > > > _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users
_______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
