scubado Posted September 9, 2010 Posted September 9, 2010 I'm in need of a confirmation on the DC cards as to which side does the controller control. Do the cards control the positive side or the negative side? I recently finished wiring 1500 led's, took 6 weeks, assuming the cards controlled the positive side. In another thread it was mentioned that the cards might control the negative side which will cause me great grief if this is true. I don't have my cards yet to test anything and didn't see anything in the spec sheet or instructions that mentions this. Fortunately, I can switch to negative control without too much grief, but need to know so I can work accordingly before my cards arrive.
Geoff Harvey Posted September 9, 2010 Posted September 9, 2010 HiOn the DC board, all the +ve connections (outputs and power inputs) are connected together and the board controls the negatives to each output. (See Page 7 of user manual in the LOR Support page http://www.lightorama.com/Documents/CMB16D_Man_Web.pdf )Quote:- -------------------------------------------------[align=left]Nitty-Gritty[/align][align=left]This section is for technical types who are not sure[/align][align=left]whether their application would be a good match for[/align][align=left]the CMB16D.[/align][align=left]There are two banks of MOSFETs, bank 1 for output[/align][align=left]channels 1 to 8, and bank 2 for output channels 9 to[/align][align=left]16. The positive outputs of a bank are all tied[/align][align=left]together and connected through their fuse to the[/align][align=left]positive power input. A MOSFET is used to ground[/align][align=left]the load connected to its channel, so positive power[/align]is always present at the load.-------------------------------------------------------In Australia, all the low voltage lights with controllers have common +ve and controlled is on the negative output.Regards Geoff
scubado Posted September 9, 2010 Author Posted September 9, 2010 Crap! Didn't read to Pg.14. I was looking in hardware fundamentals for the info. This info ought to be at the beginning of the book. Oh well, back to the drawing board:? I was starting to go through solder withdrawals too:P
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