i hope y'all enjoyed my story last night of how my "first" repair didn't quite work (OBVIOUSLY A MAJOR MALFUNCTION) and digging into the bowels of the charred critter for evidence of what went wrong. i'll post more information/pictures as they come.
It's funny how almost EVeryone suggested that i test the unit on the bench before applying full power (120V and hundred's of amps). i wish i had that hindsight up front :-) My only other regret is that i didn't have my video camera running when i first powered up the "repaired" controller (i've never seen such pretty colors of flash and flames - eg, lots of melted copper:-)
This leads to a couple of question. i need a suitable power supply to bench-test my controller. It needs to be 70+v DC (since the 1231c's under-voltage cutback spec is 64v). What amperage should the supply have ? 1A, 5A, 10, 20? Fixed or adjustable ?
The test load can be a series of (wasteful) incandescent light bulbs as suggested in the 1231c manual (which is good reading to learn more about controllers, etc. http://www.curtisinst.com/index.cfm?fuseaction=cProducts.DownloadPDF&file=1209.pdf
Any suggestions anyone ? Thanks!