On Fanuc drives you need to be careful as bad or worn motor cable insulation can easily take out a Fanuc drive. :-(
Dave On 2/26/2016 5:07 PM, Todd Zuercher wrote: > I had to replace all of the servo power cables on a Fanuc 0i controlled > gantry router (only 10 years old). The insulation had hardened from oil > exposure, was badly cracked, and some of the conductors were broken. Made > for some rather erratic servo performance. > > ----- Original Message ----- > From: r...@superiorroll.com > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Sent: Friday, February 26, 2016 4:49:47 PM > Subject: Re: [Emc-users] Stake in ball screw Cincinnati Arrow > > I just replaced the power cables, not the encoder cables, and I didn't use > shielded cable, I used the same stuff that is pictured. I used 12/4 AWG. > > Rick > > > -------- Original Message -------- > Subject: Re: [Emc-users] Stake in ball screw Cincinnati Arrow > From: "Forum Deswysen" <forum.deswy...@gmail.com> > Date: Fri, February 26, 2016 4:31 pm > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > > For Rick : > > A problem identified, thank you Rick. > I will replace cables. > > You changed the power and encoder? > > Given the color and the type of cable, I do not think this is the original > cable. > For power, did you use shielded cable? > What section did you use > > Andy: > > I have another problem: > > https://drive.google.com/open?id=0B5hmBjm5ot8NaTRkSlRWZVc4d2M > > I have a difference between 0.2-0.3 mm !!! > > 2016-02-26 20:43 GMT+01:00 Rick Lair <r...@superiorroll.com>: > >> You are seeing pretty much exactly the same issues that I was having >> with both of my machines, you have the A2100 control, and that was the >> fault that I was getting on my machine, before I replaced the cables. >> >> That is definitely physical damage on the X axis cable, but the damage I >> am talking about is not visible,( someone step in if I botch this up) >> the insulation "breaks" down electrically, and as I take it, the drive >> senses this somehow, and shuts down. On our machine with the 850SX, we >> always saw X axis faults, when it was the Y or the Z being the fault, >> reason being, due to how the drive ready chain of logic in the drives >> was wired, it always saw the X drive as being faulted first. >> >> Your machine is a carbon copy of my Sabre, in respect to drives and >> controls. >> >> Rick >> >> >> On 2/26/2016 2:09 PM, Forum Deswysen wrote: >>> I asked for your help because I had an axis error "CR_AXES_RDY" >>> that caused the shutdown of the machine: >>> https://drive.google.com/open?id=0B5hmBjm5ot8NSFlVNFZ6OFFpOGc >>> >>> Before we heard creaking on the screw axis Z ??? >>> Therefore first I thought of a default of the screw. >>> It's not that. >>> >>> The servo failure comes and disappears after several cycles of the >> machine >>> ... >>> >>> Today for the re-started I removed the C3 logic supply connector on the >>> drive X: >>> https://drive.google.com/open?id=0B5hmBjm5ot8NenExalJrM09ienc >>> >>> I do not understand where this intermittent failure? >>> >>> I want to know before purchasing new engines for linuxcnc >>> >>> 2016-02-26 19:59 GMT+01:00 Rick Lair <r...@superiorroll.com>: >>> >>>> What error are you getting on the control, what is the machine actually >>>> doing? >>>> >>>> I have the Sabre 750 which is a 1995 and has the A2100 control, and we >>>> also have a Lancer 1250 with the 850SX control, which is from 1996, the >>>> Sabre has the Kollmorgen drive package, and the Lancer has the Red Cap >>>> Fanuc drive package. On both machines I have had to replace all of the >>>> servo motor power cables due to the wire insulation breaking down >>>> internally, constant servo drive failures, ON BOTH MACHINES, I had all >>>> the kollmorgen drives gone through, ( the problem started on the >>>> kollmorgens, then it started on the Fanucs) thinking that those were the >>>> problem, before I got my insulation resistance tester out and checked >>>> the cables, sure enough the cables were bad, and I ordered an entire >>>> spool of cable and replaced all of them. >>>> >>>> Have not had a single problem in over 2 1/2 years with either machine >>>> since I did that. >>>> >>>> Rick >>>> >>>> >>>> On 2/26/2016 1:46 PM, Forum Deswysen wrote: >>>>> I'm going to do tests with a comparator in the motor spindle. >>>>> Perfect, I no difference. >>>>> So all is well with the ball screw !!! >>>>> >>>>> https://drive.google.com/open?id=0B5hmBjm5ot8NNGdkYmo4WHRSSXM >>>>> https://drive.google.com/open?id=0B5hmBjm5ot8NanpxT1hzaGxsYTg >>>>> https://drive.google.com/open?id=0B5hmBjm5ot8Nb2s5RmxyN2xMUm8 >>>>> >>>>> The tolerance in the screw maybe just engine braking since the machine >>>>> was stopped >>>>> and the head placed on its transport support. >>>>> >>>>> Where does my axis error ??? >>>>> This is an intermittent fault >>>>> Not happy with this because I failed I could not complete an order for >> a >>>>> customer! >>>>> I had to do the subcontract. >>>>> >>>>> 2016-02-26 17:45 GMT+01:00 Rick Lair <r...@superiorroll.com>: >>>>> >>>>>> With about 95% certainty, all the milacron, lathes and machining >>>>>> centers, the ball nuts all sit in and bolt to the mounting block ( we >>>>>> have at least a dozen Cincinnati Milacron machines, mix of lathes and >>>>>> mills, from 1978 to 1996, and they all have the same configuration, >> and >>>>>> I have worked on all of them). Usually 4-6 bolts on both the block and >>>>>> the nut cartridge. >>>>>> >>>>>> Rick >>>>>> >>>>>> On 2/26/2016 11:39 AM, Jon Elson wrote: >>>>>>> On 02/26/2016 08:00 AM, Forum Deswysen wrote: >>>>>>>> https://drive.google.com/open?id=0B5hmBjm5ot8NSDhCTmpsWkk3aVU >>>>>>>> >>>>>>>> >>>>>>> This 3rd picture seems to show you indicating you can rock >>>>>>> the screw forward/backward by 10 degrees. This would seem >>>>>>> to indicate wear and looseness in the ballnut, or possibly >>>>>>> in the mounting of the nut. it appears the block the nut >>>>>>> sits in is NOT the actual ballnut, but a mount for it. So, >>>>>>> you might see if the ballnut is no longer firmly mounted >>>>>>> inside that mount. Some nuts are threaded on the outside, >>>>>>> and screw into a threaded hole in the mounting block. Then, >>>>>>> there needs to be something that locks the nut into the mount. >>>>>>> >>>>>>> Others are bolted to the mount. These bolts could have >>>>>>> loosened, possibly by stretching. if loose, you might >>>>>>> replace the bolts. >>>>>>> >>>>>>> Jon >>>>>>> >>>>>>> >> ------------------------------------------------------------------------------ >>>>>>> Site24x7 APM Insight: Get Deep Visibility into Application >> Performance >>>>>>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>>>>>> Monitor end-to-end web transactions and take corrective actions now >>>>>>> Troubleshoot faster and improve end-user experience. Signup Now! >>>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >>>>>>> _______________________________________________ >>>>>>> Emc-users mailing list >>>>>>> Emc-users@lists.sourceforge.net >>>>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>>>> -- >>>>>> >>>>>> Thanks >>>>>> >>>>>> >>>>>> Rick Lair >>>>>> Superior Roll & Turning LLC >>>>>> 399 East Center Street >>>>>> Petersburg MI, 49270 >>>>>> PH: 734-279-1831 >>>>>> FAX: 734-279-1166 >>>>>> www.superiorroll.com >>>>>> >>>>>> >>>>>> >>>>>> >> ------------------------------------------------------------------------------ >>>>>> Site24x7 APM Insight: Get Deep Visibility into Application Performance >>>>>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>>>>> Monitor end-to-end web transactions and take corrective actions now >>>>>> Troubleshoot faster and improve end-user experience. Signup Now! >>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >>>>>> _______________________________________________ >>>>>> Emc-users mailing list >>>>>> Emc-users@lists.sourceforge.net >>>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>>>> >> ------------------------------------------------------------------------------ >>>>> Site24x7 APM Insight: Get Deep Visibility into Application Performance >>>>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>>>> Monitor end-to-end web transactions and take corrective actions now >>>>> Troubleshoot faster and improve end-user experience. Signup Now! >>>>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >>>>> _______________________________________________ >>>>> Emc-users mailing list >>>>> Emc-users@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> -- >>>> >>>> Thanks >>>> >>>> >>>> Rick Lair >>>> Superior Roll & Turning LLC >>>> 399 East Center Street >>>> Petersburg MI, 49270 >>>> PH: 734-279-1831 >>>> FAX: 734-279-1166 >>>> www.superiorroll.com >>>> >>>> >>>> >>>> >> ------------------------------------------------------------------------------ >>>> Site24x7 APM Insight: Get Deep Visibility into Application Performance >>>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>>> Monitor end-to-end web transactions and take corrective actions now >>>> Troubleshoot faster and improve end-user experience. Signup Now! >>>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >>>> _______________________________________________ >>>> Emc-users mailing list >>>> Emc-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> >> ------------------------------------------------------------------------------ >>> Site24x7 APM Insight: Get Deep Visibility into Application Performance >>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>> Monitor end-to-end web transactions and take corrective actions now >>> Troubleshoot faster and improve end-user experience. Signup Now! >>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >> -- >> >> Thanks >> >> >> Rick Lair >> Superior Roll & Turning LLC >> 399 East Center Street >> Petersburg MI, 49270 >> PH: 734-279-1831 >> FAX: 734-279-1166 >> www.superiorroll.com >> >> >> >> ------------------------------------------------------------------------------ >> Site24x7 APM Insight: Get Deep Visibility into Application Performance >> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >> Monitor end-to-end web transactions and take corrective actions now >> Troubleshoot faster and improve end-user experience. Signup Now! >> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. 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