Well, from what I can see on Granite Devices website, their Argon servo drives are now discontinued so that eliminates one big possibility for replacing the fanuc drives and keep the motors. I don't know if Pico systems or MESA has a drive for the power these motors require. Although I'm not going to use them nearly as hard as they are capable of...
El mar, 5 dic 2023 a las 10:15, Leonardo Marsaglia (<ldmarsag...@gmail.com>) escribió: > Hello guys, and thanks for all the replies! > > Well, we swapped the majority of the capacitors on the board and we still > get the alarm on the PSU. I'm almost inclined to consider this a LCNC > project and start doing the conversion. > > One thing I'm considering before doing that is if It's possible to use the > original Fanuc Servo motors replacing only the drives. I know the drives > will not be usable because they communicate with their own Fanuc serial > protocol, but maybe there's a chance I can use the same motors. > > I'm attaching a picture of the X axis motor so you can see. I guess it > should be possible to control it, but I don't really know how the encoder > works. I know there's a Hostmot encoder module for Fanuc but I don't know > anything about them so swapping the servo motors is another option too. I > have several servo motors here just in case this happened so I can use them. > > Thanks again a lot for your help guys! Sorry that I don't reply > individually :) > > El dom, 3 dic 2023 a las 9:00, gene heskett (<ghesk...@shentel.net>) > escribió: > >> On 12/3/23 04:42, Roland Jollivet wrote: >> > If you can obtain/borrow any thermal imaging device, then run with the >> PSU >> > with covers off and check every 5min. You should identify a cap-thermal >> > problem. >> > >> For that, a $500 ir imager would be nice, but a $29 ir thermometer from >> the local lumber yard can do as well. Leonardo might even have one of >> those in his toolbox, if only to check his food for adequate cooking. I >> do. When I'm on the road, living out of the fridge and microwave of a >> motel room. >> > >> > >> > On Sat, 2 Dec 2023 at 21:14, John Dammeyer <jo...@autoartisans.com> >> wrote: >> > >> >>> From: Chris Albertson [mailto:albertson.ch...@gmail.com] >> >>> >> >>> If it is a simple linear power supply, yes they are very easy to debug >> >> and >> >>> repair, LIkey it is the caps. >> >>> >> >>> But switching power supplies are much harder to debug, You can guess >> it >> >>> might be the same issue but these have dozens of parts that can fail.. >> >> In any >> >>> case, the cost to repair is small. >> >>> >> >> >> >> I disagree. Switching power supplies are way more likely to fail from >> >> high ESR. That the system runs for a short while and then fails is >> again a >> >> symptom of a capacitor overheating due to high ESR. Or the voltage is >> >> right on the edge and as the cap warms up the heat results in a change >> that >> >> results in the power supply moving out of spec. There may even be >> enough >> >> heat developed on the board that a solder joint becomes unreliable. >> >> >> >> In the past even PC motherboards have been repaired by a wholesale >> swap of >> >> the electrolytics. >> >> >> >> So what I would do is an initial survey of the electrolytic capacitors >> >> inside the power supply and order a set. That way the machine can >> still >> >> run for an hour or so a day while you wait for parts from a reputable >> >> source. Then replace the capacitor when they arrive. That won't >> prevent >> >> the power supply from working again and it may well fix the 1 to 2 hour >> >> failure period. In either case $30 or so worth of caps is cheap. >> >> John >> >> >> >> >> >> >> >> _______________________________________________ >> >> 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 >> > . >> >> Cheers, Gene Heskett. >> -- >> "There are four boxes to be used in defense of liberty: >> soap, ballot, jury, and ammo. Please use in that order." >> -Ed Howdershelt (Author, 1940) >> If we desire respect for the law, we must first make the law respectable. >> - Louis D. Brandeis >> >> >> >> _______________________________________________ >> 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
