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 > 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
