Gene, Chris, Milosz and everybody who has tried to help, I took the power supply out of the controller cabinet and set it up on the bench. I used a small screw driver to turn the fan a few times, then I turned it on and the fan ran. Like Milosz said it was loud. I turned it off and turned it back on again and the fan ran, Great problem fixed (yeah, right). I put it back in the cabinet and turned it on (silence). So I will take it back out of the cabinet and see if I can get it to run and start reliably after a period of rest. Otherwise it looks like replacing the fan is the answer.
Thanks all, Alan > On Jul 18, 2021, at 7:39 PM, emc-users-requ...@lists.sourceforge.net wrote: > > Send Emc-users mailing list submissions to > emc-users@lists.sourceforge.net > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.sourceforge.net/lists/listinfo/emc-users > or, via email, send a message with subject or body 'help' to > emc-users-requ...@lists.sourceforge.net > > You can reach the person managing the list at > emc-users-ow...@lists.sourceforge.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Emc-users digest..." > Today's Topics: > > 1. Re: Meanwell SE600-48 Power Supply (Gene Heskett) > 2. Re: Power Draw Bar (Andy Pugh) > 3. Re: Power Draw Bar (John Dammeyer) > > From: Gene Heskett <ghesk...@shentel.net> > Subject: Re: [Emc-users] Meanwell SE600-48 Power Supply > Date: July 18, 2021 at 6:59:05 PM CDT > To: emc-users@lists.sourceforge.net > > > On Friday 16 July 2021 15:33:23 Alan Condit wrote: > >> Chris, >> >> The unit doesn’t seem to be warm. >> I adjusted the voltage down to 42 volts, to provide some headroom. I >> am using KL5056 stepper drivers and they say max 50 volts. There is >> definitely power to the fan because if I try to turn it it snaps back >> to the fixed position. The voltage is rock steady at 42 volts. >> >> I wonder if it is just the fan or fan controller that is bad. >> >> I bought the power supply a year or so ago but this is the first time >> I have applied power to it. Maybe I will have to open it up and see if >> I could replace the fan. >> >> Alan >> > That rather sounds like a good idea, Alan. From your description it > sounds like the motors own hal effect commutation circuit has died. That > is typically buried someplace in the motor, so if it has voltage, but is > not running, and the motor itself may be hot, its probably time for a > new fan. Call it infant mortality. > >>> From: Chris Albertson <albertson.ch...@gmail.com> >>> Subject: Re: [Emc-users] Meanwell SE600-48 Power Supply >>> Date: July 15, 2021 at 12:21:10 PM CDT >>> To: "Enhanced Machine Controller (EMC)" >>> <emc-users@lists.sourceforge.net> >>> >>> >>> If you place your hand on the power supply and feel no heat, then >>> I'd expect the fan to be off. >>> >>> I some a good size power resistors mounted to a heat sink with a fan >>> that I used for testing power supplies. Testing with no dummy load >>> is not very meaningful. The load is set up so it can be quickly >>> rewired with resistors in series or parallel in different ways using >>> a terminal block. >>> >>> On Thu, Jul 15, 2021 at 9:19 AM Alan Condit <condit.a...@gmail.com> > wrote: >>>> I am building a new controller cabinet. I installed a Meanwell >>>> SE600-48 power supply. When I turn on the power supply the fan >>>> doesn’t turn on. If I leave the power supply on for a little while >>>> I hear an intermittent clicking (like a relay) but no fan. Does it >>>> have some kind of temperature control on the fan? Is it not turning >>>> on because I currently have virtually no load on the power supply? >>>> >>>> Thanks, >>>> Alan >>>> >>>> _______________________________________________ >>>> Emc-users mailing list >>>> Emc-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >>> -- >>> >>> Chris Albertson >>> Redondo Beach, California >> >> _______________________________________________ >> 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) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > From: Andy Pugh <bodge...@gmail.com> > Subject: Re: [Emc-users] Power Draw Bar > Date: July 18, 2021 at 7:00:27 PM CDT > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > > > > >> On 19 Jul 2021, at 00:39, John Dammeyer <jo...@autoartisans.com> wrote: >> >> case though is there a way to limit the distance the butterfly turns? > > Have you considered a disc spring setup instead? The one on my mill has > worked well. > > Otherwise: maybe you could have a plain section above the thread for the nut > to run in to, and then a cap to stop it all disassembling. > You might want a spring to re-engage the nut with the thread. > > > > > > > > > From: "John Dammeyer" <jo...@autoartisans.com> > Subject: Re: [Emc-users] Power Draw Bar > Date: July 18, 2021 at 7:38:32 PM CDT > To: "'Enhanced Machine Controller \(EMC\)'" <emc-users@lists.sourceforge.net> > > > Hi Andy, >> From: Andy Pugh [mailto:bodge...@gmail.com] > The disk spring setup would be great if the only thing I used was TT Tooling. > But if I remove the R8 3/4" flat top collet and insert my 3/4" R8 drill > chuck the springs seem like they'd be an issue. The air cylinder to push on > the spring washers now has to be moved out of the way. How tight is tight? > > I had thought of using a stepper motor and 100:1 planetary drive which are > available for about $60. Pretty easy to engage air cylinder to push socket > onto draw bar. Then turn 200 turns to unwind draw bar two turns. To tighten > turn two rotations. The torque multiplier is more than enough to create the > 12 to 18 inch lbs required. > > If I want to remove the collet then run it 12 rotations. I think even a > 50:1 with 150 oz-in motor will work. > > And I have an extra stepgen available on the MESA. > > But I already have the butterfly wrench, air cylinder, electric valves, > regulators etc. All but the mechanical hardware. For that I'm busy changing > the 2D drawings into 3D Parametric so I can use LCNC to make them. > > > >> >>> On 19 Jul 2021, at 00:39, John Dammeyer < <mailto:jo...@autoartisans.com> >>> jo...@autoartisans.com> wrote: >>> >>> case though is there a way to limit the distance the butterfly turns? >> >> Have you considered a disc spring setup instead? The one on my mill has >> worked well. >> >> Otherwise: maybe you could have a plain section above the thread for the nut >> to run in to, and then a cap to stop it all >> disassembling. >> You might want a spring to re-engage the nut with the thread. >> >> >> >> >> >> _______________________________________________ >> Emc-users mailing list >> <mailto:Emc-users@lists.sourceforge.net> Emc-users@lists.sourceforge.net >> <https://lists.sourceforge.net/lists/listinfo/emc-users> >> https://lists.sourceforge.net/lists/listinfo/emc-users > <image001.png> > > _______________________________________________ > 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
