On Thu, Feb 26, 2015, at 09:30 AM, richsh...@comcast.net wrote:
> Also keep the safety stuff completely separate from the control stuff. By > that I mean the overtemp limiter controls a mechanical contactor, not just > turns the SSR signal off. Yep. True story from work a few years ago: We had made a number of prototypes of a brand new small motor drive. Plastic housing. They were in a test oven for a weekend heat run. While we were gone the heater SSR failed in the on position. Opened it up on Monday morning and the drives looked like something out of a Salvator Dali painting - the plastic housings had partly melted and there were plastic stelactites and stelagmites everywhere. John Kasunich ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
