Enigma's 2012 Nano Contest Entry

[Enigma]

Originally Posted by sphelps

If those are 12V fans and you have 12V power supply consider wiring the two fans in series so they run at 6V instead of 12V. It'll be much quieter and still more than enough air exchange. I always find such fans to be overly noisy if run at full power.

Build looks good so far, curious to see the final LED layout

Hmm. These fans have two settings. They seem pretty quiet. If I decide to change it, would Memory Express have the required cable?

LED layout:



They don't actually work yet, however.

Excuse my ugly epoxy mess.

[intarsiabox]

The stand looks great! Makes me think I may have to build a stand for my entry to compete, I was just going to throw mine on an old dresser in a spare bedroom.

[Enigma]

Originally Posted by intarsiabox

The stand looks great! Makes me think I may have to build a stand for my entry to compete, I was just going to throw mine on an old dresser in a spare bedroom.

My 40 gallon started off as a 10 gallon, on an old dresser in my bedroom. I really liked it there. It fit on the dresser perfectly, and the moonlights were very nice at night.

[sphelps]

Well if they are quite then nevermind but if you do need to slow them down it's an easy option instead of buying another power supply. No cable but easy to rewire by taking red wire from fan 1 to + power, black wire from fan 1 to red fan 2, followed by black fan 2 to - power.

LED layout looks good, why doesn't it work?

[Enigma]

Originally Posted by sphelps

layout looks good, why doesn't it work?

I'm guessing I did something wrong. I haven't figured out what, though.

The Apex works. The VDM appears to work. The lights on the eln-60-48p drivers don't work. The issue isn't with the lights, as when tested independently of the drivers they work.

I'm thinking it may actually be an issue with a splice: specifically the ones that run to the VDM. I'm going to pull all the wiring apart, redo the splices, and check again. Hubby is going to help me trouble shoot this.

In the event we can't get it fixed, I may need to recruit a guy I know (*cough**cough*) who happens to be really good at this stuff. While I really want to do it myself, this is very much a make it or break it part of the build.

[sphelps]

Not to point out the obvious but you know ELN-60-48P drivers are PWM controlled right? Shouldn't you be using ELN-60-48D drivers which are 0-10V? I actually haven't done that much with meanwell or APEX but I believe APEX is 0-10V based and you need the D drivers.

[Enigma]

Originally Posted by sphelps

Not to point out the obvious but you know ELN-60-48P drivers are PWM controlled right? Shouldn't you be using ELN-60-48D drivers which are 0-10V? I actually haven't done that much with meanwell or APEX but I believe APEX is 0-10V based and you need the D drivers.

Oops! My bad. It is the 48D drivers that I've got.

Everything looks like it should work.