I don't see anything in the spec sheet that indicates the input and output care about which side you connect to ground. I know I have used the RSD series to go from 24 to 48 and the input and output were isolated from each other and floating with respect to ground. I suspect the SD series is also.
Don't plug it in "backwards". + should always go to +, and - should always go to -. When you say +48 or -48 or +24, that refers to which side is connected to ground. I have never used that exact model, I believe the RSD series is preferred because it won't lock up due to load inrush current. Also there are more options for turning 48V into 24V than the other way around. -----Original Message----- From: AF <[email protected]> On Behalf Of Christopher Tyler Sent: Monday, April 8, 2019 10:54 AM To: AnimalFarm Microwave Users Group <[email protected]> Subject: [AFMUG] DC/DC converter question I have a Meanwell SD-350C-24 DC/DC converter for +48v in to +24v out. I just learned that our DC plant at this site is -48vdc. I'm assuming that I can't just plug it in backwards. But we've never had to deal with -48vdc before, am I wrong in this assumption? -- Christopher Tyler MTCRE/MTCNA/MTCTCE/MTCWE Total Highspeed Internet Services 417.851.1107 ext 9002 -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
