The Ultimate DIY Aquarium LED Build - Page 3 - The Planted Tank Forum
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post #31 of 100 (permalink) Old 12-23-2016, 01:20 AM
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From Meanwell Data Sheet 1050B

※ 3 in 1 dimming function (for B-Type) 
Output constant current level can be adjusted by applying one of the three methodologies between DIM+ and DIM-:
0 ~ 10VDC, or 10V PWM signal or resistance.
Direct connecting to LEDs is suggested.
It is not suitable with additional drivers.
to be used Dimming source current from power supply: 1 0 A(typ.)

This may be good news.

Swimming is not that difficult.
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post #32 of 100 (permalink) Old 12-23-2016, 03:02 AM Thread Starter
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Quote:
Originally Posted by Maryland Guppy View Post
From Meanwell Data Sheet 1050B

※ 3 in 1 dimming function (for B-Type) 
Output constant current level can be adjusted by applying one of the three methodologies between DIM+ and DIM-:
0 ~ 10VDC, or 10V PWM signal or resistance.
Direct connecting to LEDs is suggested.
It is not suitable with additional drivers.
to be used Dimming source current from power supply: 1 0 A(typ.)

This may be good news.
so the pot will vary the current?
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post #33 of 100 (permalink) Old 12-23-2016, 03:43 AM
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err....like I said earlier.. maybe but not likely..
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post #34 of 100 (permalink) Old 12-23-2016, 05:17 AM Thread Starter
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making progress on the wiring!

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post #35 of 100 (permalink) Old 12-23-2016, 07:57 AM Thread Starter
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Problem



20 Minutes Later

changed the ends from right angles to more hoops, and replaced an LED that had the solder pad come up. Still having issues tho

The lights that arent being lit up still work when tested with a multimeter. I don't understand how some aren't working while the others are when they're wired in series...


Last edited by Sean W.; 12-23-2016 at 09:42 AM. Reason: adding pic
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post #36 of 100 (permalink) Old 12-23-2016, 11:35 AM
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Hopefully just a loose connection/bad solder joint somewhere or possibly backwards polarity
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post #37 of 100 (permalink) Old 12-23-2016, 11:39 AM
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Check for bridges to the heat sink.. Put multimeter on, say, plus probe on plus pad of the diode and neg on heat sink. Reverse w/ negative pad, Check them all.

https://reefledlights.com/trouble-shooting/
https://www.google.com/url?sa=t&rct=...gX_YmQ&cad=rja

There may be a problem running soo many low V(f) reds in a row as well.. but first things first..
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Last edited by jeffkrol; 12-23-2016 at 12:09 PM. Reason: edit
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post #38 of 100 (permalink) Old 12-23-2016, 03:40 PM
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Didn't you have a wallwart 12 volt supply?

Unplug your fixture and use the 12volt across 4 LED's in series.
Keep testing groups of 4 until you find it.

Have things gotten any better???
Polarity, solder pads blasted, bad diodes???

That looks like some fat wire for a 1 amp load?

Swimming is not that difficult.

Last edited by Maryland Guppy; 12-24-2016 at 01:00 AM. Reason: Question
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post #39 of 100 (permalink) Old 12-24-2016, 08:47 AM Thread Starter
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Im at a complete loss... I have no idea why its doing this... Ive tried everything
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post #40 of 100 (permalink) Old 12-24-2016, 02:29 PM
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And you are sure you are not "leaking" voltage to the heat sink??

How about de-solder from the first red and run a bypass up past the last red.. like to row 3
I know, it isn't "supposed" to matter..

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post #41 of 100 (permalink) Old 12-24-2016, 02:42 PM
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1. What color is the next set of LEDs that wont light?
2. Is your POT controlling/dimming the ones that do light?

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http://www.plantedtank.net/forums/yo...=view&id=27121
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post #42 of 100 (permalink) Old 12-24-2016, 09:04 PM Thread Starter
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Quote:
Originally Posted by ichy View Post
1. What color is the next set of LEDs that wont light?
2. Is your POT controlling/dimming the ones that do light?
The next color is red. But the 4 on the far right are after that in the series... So it skips like 20 LEDs then lights up those 4 white ones.

I think its dimming it, its hard to tell. I took the POT off to see what happened, same thing, just brighter

I added a jumper and skipped that red LED and the same thing is happeneing
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post #43 of 100 (permalink) Old 12-24-2016, 09:46 PM
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I added a jumper and skipped that red LED and the same thing is happeneing
Jumper around ALL reds...
Just start from the first one and go to the next "row" w/ no reds.

You only have about 10 reds. build w/out them in other words.



Pretty sure the collective low V(f) of the reds is causing problems..

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post #44 of 100 (permalink) Old 12-25-2016, 04:10 AM Thread Starter
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Originally Posted by jeffkrol View Post
Jumper around ALL reds...
Just start from the first one and go to the next "row" w/ no reds.

You only have about 10 reds. build w/out them in other words.



Pretty sure the collective low V(f) of the reds is causing problems..
Ill give that a try, Itll have to wait till January tho, wont be able to get to it until then
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post #45 of 100 (permalink) Old 12-25-2016, 11:16 PM
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Quote:
Originally Posted by jeffkrol View Post
Pretty sure the collective low V(f) of the reds is causing problems..
Just curious why does the low V(f) cause a problem?
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