By the way, the red ones are the ones I modified to suit what I think the motor should be. Please correct me if I'm wrong.
El dom, 19 mar 2023 a las 19:17, Leonardo Marsaglia (<ldmarsag...@gmail.com>) escribió: > Hi guys, and thanks for all the responses! > > Well, we tested another cable and the problem seems to be the same so I > got a yaskawa GA500 vfd which goes up to 590 hz so it's fine for me since I > rarely went above 500 hz with the other VFD. > > Is there any consideration about how to set up this VFD? Because it seems > more complex than the one I've been using, so your experience will be more > than useful to me. > > I attached a pic of the motor parameters. Those are the ones I'm most > worried about. > > > > El sáb, 18 mar 2023 a las 23:43, Ryan McIntosh (<r...@pebkac.ca>) > escribió: > >> You can get a cable tracer and ring it as well. Lock out the VFD and you >> don't even have to disconnect anything if you can reach in and get clips >> on >> the UVW wires. A break in the insulation will show up as a bright spot >> and >> a break in the conductors will be marked by a sharp drop off. >> >> If that is what happened, I'd recommend getting a high quality _drag_ >> cable >> for future. They'll be marked TRVVP >> >> >> *Ryan McIntosh* >> E4F Designs >> (204)770-3682 >> r...@pebkac.ca >> >> >> On Sat, Mar 18, 2023 at 7:22 AM Roland Jollivet < >> roland.jolli...@gmail.com> >> wrote: >> >> > A break in one of the wires would cause it be on two phases, vibrate and >> > not run. Definitely intermittent as it flexes. A piece of cable is so >> cheap >> > compared to another VFD. Just strap another cable onto the cable chain >> and >> > run it for a few hours. >> > If it doesn't fail, it's not conclusive, but if it does, then you know >> for >> > certain it's the VFD. >> > >> > Cables that flex are a consumable, unless it's very high quality Lapp >> cable >> > or other. >> > >> > Roland >> > >> > >> > On Fri, 17 Mar 2023 at 02:50, Leonardo Marsaglia <ldmarsag...@gmail.com >> > >> > wrote: >> > >> > > Hi Gene, >> > > >> > > Well, it's a little tricky because of the amount of cables I have >> running >> > > next to the ones of the spindle. But I checked the integrity of the >> cable >> > > and by visual inspection it all looks alright. It's a 3 wire cable >> with >> > the >> > > black insulating cover so it's pretty well protected. >> > > >> > > I really doubt the cable is the problem from what I've experienced and >> > from >> > > the condition of the cable in general. >> > > >> > > El jue., 16 de marzo de 2023 16:52, gene heskett < >> ghesk...@shentel.net> >> > > escribió: >> > > >> > > > On 3/16/23 12:44, Leonardo Marsaglia wrote: >> > > > > I've checked that the terminals are connected well but I didn't >> check >> > > for >> > > > > the entire cable to be alright. >> > > > > >> > > > > I thought about it but I really didn't think such an intermittent >> > > failure >> > > > > could be caused by the cable alone. Do you recommend to install a >> new >> > > > cable >> > > > > just in case? >> > > > > >> > > > That depends on how old that cable is, and how much flexing it has >> > > > endured in its time. And in some instances, what color the plastic >> > used >> > > > for insulation is. Magenta, aka hot red or hot pink, contains a >> > chemical >> > > > I can't name but it destroys the copper in the wire by converting >> it to >> > > > a fine, rust colored powder that may, or may not, properly conduct >> > > > electricity. That color is most often found in two-way radio >> microphone >> > > > cords as the connection to the tx button, or today, more commonly as >> > the >> > > > outer jacket of a sata drive cable in your computers. In either >> case, >> > > > the failure rate by the time its 5 years old, is well up the far >> end of >> > > > the well known bathtub curve. I long ago changed all of mine out for >> > any >> > > > color but hot red/aka magenta. End of drive errors. >> > > > >> > > > I have serious doubts that is the problem in this case, since the >> > > > currents involved are definitely capable of starting a noticeable >> fire. >> > > > But a hand, run along the length of the cable, looking for hot spots >> > > > when the failure is in evidence might not be a bad idea. Or better >> yet, >> > > > tracing the wire with an IR thermometer or infra-red camera. >> > > > >> > > > > El jue., 16 de marzo de 2023 13:37, Todd Zuercher < >> > > to...@pgrahamdunn.com >> > > > > >> > > > > escribió: >> > > > > >> > > > >> Have you checked your cabling between the motor and VFD? >> > > > >> > > > And please folks, take a break on the mail server, and trim your >> posts >> > > > down to the context of your reply. >> > > > 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 >> > > > Genes Web page <http://geneslinuxbox.net:6309/> >> > > > >> > > > >> > > > >> > > > _______________________________________________ >> > > > 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
