On Sun, 17 Mar 2019 19:03:07 -0400 Gene Heskett <[email protected]> wrote:
> On Sunday 17 March 2019 17:56:02 Nicklas Karlsson wrote: > > > > ... > > > So once every 1/2 second a message starting with 0x40A shows up on > > > the bus and everyone sees it. The Charger and in this case also a > > > small display are the only ones interested in it. The charger uses > > > the information to set charge on/off, voltage and current. The > > > display grabs the information and shows what the current charge > > > voltage and max current are set to. > > > > > > The charger also reports in a different message what it measures for > > > battery voltage and what the current charge current is and it > > > reports if it's enabled. That's all identified by the Object > > > Dictionary entries at 18xx and 1Axx. > > > > I am familiar with CANopen communication and also to some degree > > battery charging. The old style open Lead-acid batteries should bubble > > like home brewn mash before they are done. > > > Fraid not Nik. And this is TL;DR, but read it anyway. LA batteries might > bubble gently when being heavily charged, but every bubble is > electrolite lost forever and its hard on the plates. You have to refill. > Someone in the distant past at kxne-tv had put a 10 amp charger on a pair > of 220 AH truck batteries with a 47 ohm 5 watt resistor in series, so > they were getting about 600 ma as a trickle charge into the two of them > in parallel. So they were boiling at a good rate. ... You have to stop then they bubble like home brewn mash, at least after a while. They should not bubble during trickle charge. > ... Since it was > started weekly for a 15 minute dry run, it never needed that charger in > the first place. > > CiA 309-3 is to access a CANopen device over TCP/IP and as I added it > > could be used to access dictionary of devices connected to Linuxcnc. Nobody have anything to mention about CiA 309-3? Nicklas Karlsson _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
