On Monday 01 June 2020 01:02:01 Gene Heskett wrote: > On Sunday 31 May 2020 22:58:31 Chris Albertson wrote: > > Second, my testing for motor heating may not have been close enough to > stopped as I was just turning the speed down to about a tick a second > from the generator which may not have been long enough to cause a > current turndown. So I'll plug it in w/o any drive for a hour > tomorrow to see if it still gets that hot. Maybe watch it with a > kill-a-watt?
With the kill-a-watt watching the supply, its 16 watts when warmed up but truly stopped. And does not increase when its moving at <10 rpm. I think that says it doesn't do a stopped current turndown. Playing with the function generator, it was up to about 45 watts for the whole kit at an estimated motor speed in the 4k rpm territory, but all it took to error the drive was a finger touch on the shaft. In red led on mode the driver shut down the draw to about 3.5 watts, but was holding the motor a wee bit. In that event, "home would be lost" since it takes a powerdown reset to recover. So I will arrange for the alarm output signal to do an unhome. At about 2k rpms, the draw is about 30 watts. And torque was abundant. I can also, using that alarm signal, throw up a red led in the axis gui. Probably should make it blink too since thedrivers led doesn't. Acc amazon, the Ender3 printer s/b here today, its out for delivery. 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> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
