Meanwell LDD driver: for those who want to dim to 0 using Arduino

[Krazie4Acans]

so in my existing build I have a 6up coralux board with 4 LDD's and 1 SCW.
The scw goes to a coralux fan control board. If I added another scw for safety reasons would I need to get another coralux fan control board?

My drivers are currently in my sun power housing, along with my switching power supply. They are actively cooled (along with my t-5 bulbs and led heatsink) with the aforementioned fans.

Do you mean adding another scw or replacing the current scw with a higher wattage one?

If you add another scw then you would have to use a second fan control board as the scw's will not allow you to add them in parallel without damaging the scw.

If you are just talking about replacing the scw with an scw12c-12 then a single fan control board is fine.

I looked up the coralux fan control board and it runs the power to the fans in parallel. So connecting two fans to the current scw has them running at 12v at about 2.1 watts or half their rated current.

 

[jedimasterben]

So, anyone think that I should make this a bit more complex?

 

[O2Surplus]

So, anyone think that I should make this a bit more complex?

Lol- It's only complex if you don't understand it. That's too easy to follow. You really need to try harder.

 

[perkint]

You've missed the connections from Storm X to LDDs?

Taking the mickey aside, and a complete change in subject, anyone know any decent cheap/free circuit design software for android? Just something for drawing circuits...

Tim

 

[jedimasterben]

Lol- It's only complex if you don't understand it. That's too easy to follow. You really need to try harder.

I'll do better next time

You've missed the connections from Storm X to LDDs?

I just KNEW I was forgetting something! :lol:

 

[marspeed]

Everycircuit for android

 

[Krazie4Acans]

So, anyone think that I should make this a bit more complex?

You should get a hold of one of O2Surpluses SCW to LDD adapter boards. It would let you run both LDD's and both SCW's off of one driver board. Then you could run the other two SCW's off of the second board for fans.

Also be careful with the input voltage as I believe the max input for the LDD's is 52v ( although it might be 52 + LDD Vf which would give you about 55 volts). Just make sure you check.

 

[jedimasterben]

You should get a hold of one of O2Surpluses SCW to LDD adapter boards. It would let you run both LDD's and both SCW's off of one driver board. Then you could run the other two SCW's off of the second board for fans.

Also be careful with the input voltage as I believe the max input for the LDD's is 52v ( although it might be 52 + LDD Vf which would give you about 55 volts). Just make sure you check.

The system is going to have eight LDD and four SCW in total, I just used pics I found first lol. O2 has some of the converter boards in the mail for me.

Max on the input for LDD-H is 56v, the SCW are 72v max.

 

[Krazie4Acans]

I knew you were safe on the SCW input voltage but just knew you were going to be really close on the LDD's. I figured you had talked to him already but just wanted to make sure. lol Krazie :jester:

 

[jedimasterben]

Yes, it's definitely close, but I wanted to run 16x Luxeon T in series on a couple of the LDD, 2.85v each at 1A, so I need a higher input voltage, and I didn't want to have to use the HLG-320H-48A power supply and tune it up, so I figured I'd just grab the HLG-320H-54 instead and keep it IP67.

 

[perkint]

II just KNEW I was forgetting something! :lol:

Actually you've 'forgotten' the LEDs as well

Everycircuit for android

Thanks - I'll have a look

Tim

 

[jedimasterben]

Actually you've 'forgotten' the LEDs as well

 

[perkint]

Everycircuit for android

Thanks - I'll have a look

Hmm - just had a look. £6 is worth paying for a good app. But, more money for individual additional components (at least that's what all the reviews are complaining about)? That's a bit strong!

Will have a play with the freebie version first...

Tim

 

[zachts]

So, anyone think that I should make this a bit more complex?

throw in a pwm to 0-10v converter for dimmable T5 ballasts

 

[jedimasterben]

throw in a pwm to 0-10v converter for dimmable T5 ballasts

I've already got a couple of those, but I don't see the point. You still need a relay, and dimming kills the bulb a lot faster.

 

[Jonatan9573]

pwm to 0-10v converter

pwm to 0-10v converter

Hey O2surplus do you have any of the pwm to 0-10v converters that I can get from you? I am getting the parts together to fully dim my makers led build. I also need a 8 LDD board (2 rows of 4). Will you be able to help me out with this?

Thank You

I cant PM you since i don't have enough posts but have been following this thread for awhile now.

 

[nick12881]

Hey O2surplus do you have any of the pwm to 0-10v converters that I can get from you? I am getting the parts together to fully dim my makers led build. I also need a 8 LDD board (2 rows of 4). Will you be able to help me out with this?

Thank You

I cant PM you since i don't have enough posts but have been following this thread for awhile now.

I have two of 02surplus 0-10v dimming converters brand new. I was going to use them for a build but it never would up happening. I could do $25 shipped to you. If your interested please let me know.

 

[Jonatan9573]

I appreciate the offer but o2surplus already sent me two.

 

[nick12881]

Is $25 shipped for the two a good price. I honestly don't remember what I paid for them.

 

[Jonatan9573]

Yes it's a good price.