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Old 07-17-2010, 12:00 PM   #1
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DIY LED Light hood

So ive finally got all my supplies in. 2 1000ma buckpucks with controllers. 6 White cree's 6 blue cree's and 1 24v 6.5amp psu Now im not familure with this kind of PSU setup Im going to assume L and N are + - from the wall and the V+ and V- are to run the buck pucks on different strings.

I got this PSU So you can see what im talking about.
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Old 07-17-2010, 01:25 PM   #2
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L and N refer to the line voltage (AC). L is "live" or "hot" and N is neutral. The black wire is usually the "hot" and the white wire is your neutral. Green is ground.

V+ and V- is the output to the controllers.

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Old 07-17-2010, 01:38 PM   #3
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thats what thought. just wanted to have a 2nd opinion

What does the FG terminal refer to?
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Old 07-17-2010, 03:36 PM   #4
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Not sure about the FG terminal. Could be used for trimming the output. Did the PSU come with a manual or anything?

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Old 07-17-2010, 03:42 PM   #5
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I thought it would have, but it didnt. i looked at the MPJa website for a PDF manual but still no luck
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Old 07-17-2010, 03:44 PM   #6
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Try googling the PSU name and maker. They may have a website with documents about the PSU or contact info.

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Old 07-17-2010, 05:52 PM   #7
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its a different Manu. but same V and amps as well as termials. Says 3rd terminal is indeed a ground. Can i rely on an outside manufacturer to be somewhat the same to mine?

http://www.jameco.com/webapp/wcs/sto...001_2094864_-1
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Old 07-18-2010, 01:53 AM   #8
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Hello,
FG does indeed appear to be the ground connection. Does the MPJA PSU have the same symbol next to the FG marking? If so, then its a ground terminal. You will want to connect the green wire from your power cord (if its a three prong cable) to the FG (if its what we think it is).

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Old 07-18-2010, 06:07 AM   #9
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just to be on the safe side,test between the fg terminal and the metal casing using ohms/bell setting on your tester,it should beep or show 0 if it's the ground.
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Old 07-21-2010, 12:53 PM   #10
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I have the same PSU. FG is ground/green. I grabbed a "power tool replacement cord" from Husky at home depot. You are going to want the 3 prong cord. Works like a charm, I'm posting my completed LED build tonight when I get home from work, if you need any visuals for wiring.

Also, beware of soldering irons...not that i have personal experience...:p
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