Led trouble

[Kakorb]

I recently bought some v2 led arrays from Dave at nanobox two ldd700 drivers on a board and a 90w 48v power supply. I tried to code my ato to dim so that I only put 5v to the Ldds. When it's all hooked up the LEDs just blink or flash. Never dim nothing just blink. So I hooked it up to my pwm dimmers at 10v and manually dimmed. Did nothing. Just blink. I don't know what is wrong with this setup but I can't figure it out

[cosmith71]

Do you have a link to what you bought?

[Kakorb]

No. It was used. I emailed him for stats on the LEDs Looks like six blues on each array five whites a lime and maybe missing some. Two arrays. He sent two mean well 700ldd h on a driver board and a mew well power supply. Supply is mad 90 watts 48v and like 1.6 amps. When I hook it up the power supply beeps and green light blinks which is what is causing lights to blink I believe. Voltage drops going into driver from power supply. Would I have to use a certain power plug for the dimmers to work even though it's a common ground from pwm to power

[cosmith71]

Post some pictures of the setup. What happens if you don't have any PWM input?

[Kakorb]

They blink. I will when get home. I took resisters off back of board so drivers should light at 100 percent too and they blink

[cosmith71]

Sounds like either a bad power supply or something in the setup is overloading it.

[Kakorb]

How do u test for a bad power supply.

[cosmith71]

You can disconnect the load and check the voltage to make sure it's correct, but that still may not help if it's only failing under load. Post a picture of your wiring.

[Kakorb]

It's puts out what it advertises. What is a good pic uploading site

[cosmith71]

You can just attach them here.

[Kakorb]

Right side.

[Kakorb]

Left side. Try get better ones. But the wires between the arrays are opposite the hookup wires.

[cosmith71]

Also need to see the wiring for the power supply and driver board.

[Kakorb]

The wiring of the power supply confuses me cause white should be neutral but it just trips power supply and beeps. Wired this way they blink

[cosmith71]

Is the cable at the bottom of the picture (white and bare) connected to a DC power supply? Need to see that, too.

[cosmith71]

Was this wired when you bought it?

[cosmith71]

Here's what I'd do if it were me.

Make sure which pads are 2V- on the LED boards, since they're all marked 2V+.

Unsolder the wires from the LED boards. Make sure your power supply polarity to the driver board is correct. Power it up (with no LED's connected) and see if the power supply trips. If it doesn't trip, then your driver board is probably OK. If it does it could be a problem with one of the drivers, the driver board, or the power supply.

If it doesn't, connect 1+ and 1- on the driver board to 1V+ and 1V- on ONE of the LED boards and see if some of the LED's light up. Connect 1+ and 1- to 2V+ and (what should be) 2V- on the same board and see if the other set of LED's on the board light up.

Repeat this for the other LED board.

Do all of this again, but use 2+ and 2- instead.

The idea is to break it down and see where the problem might be.

--Colin

[Kakorb]

LEDs were wired. Think that's a miss print on board. Left sides are + rights are - only way they light on single strings Even with no LEDs power supply trips hooked up. I know for sure one ldd is junk. Yea. White and bare is power supply. I tried individual strings on both Ldds when they where good. Just blinks. Want a pic of power supply stats?

[cosmith71]

Sure. Post a pic of the power supply.

Can you send it back for repairs or return?

[Kakorb]

I might be able to. I need to know more about the led strings to order another and if it's bad. But I believe it may be

[cosmith71]

Does it work if you just hook up one of the LED boards?

[Kakorb]

Nope. Just makes em blink.

[Kakorb]

It's so frustrating. If I hook up one channel now string of 12 they are very dim before they were blinding. But if I hook up one side string of six they blink blinding bright

[lnevo]

Aren't LDD drivers analog. Sounds like your hooking PWM controls to an analog driver.

[Kakorb]

They are 5v pwm

[cosmith71]

With no PWM signal applied and the resistors removed they should run at full brightness. I think it's either a bad driver board, bad LDD's, or a bad power supply.

[Kakorb]

So I don't know much about the LEDs but I was looking at the new 180 48 from mean well. I was wondering if this would work. Will only be powering 2 Ldds for now. Would this be too much Also if I were to get a four up board and only used two places for the Ldds would that work or would I have to get a two place board for it to work. Being he sent me two 700s I will be getting them. Also considered get two 1000s too What would you recommend.

[cosmith71]

The important thing is to match the LDD amperage to what your LED's can handle. If they are 700 mA LED's and you hook them up to a 1000 mA driver you'll burn them out. I'd stick with 700's unless you know your LED's can handle 1000's.

You can get as big of a power supply as you want. The drivers will only draw as much as they need.

You can get a 4-up board and only use 2 slots. That's fine. Just hook up the sections you're using.

--Colin

[Kakorb]

So a meanwell nes 100 or 150 should work 48v cause that's what he sent. Should amp output matter on them cause there higher than the supply he sent I want to have enough power and not question that aspect but don't want fry anything. Thank you for all your help

[cosmith71]

More amps doesn't matter. The drivers will only draw what they need. Go with the 150-48 at the least. Then you'll have room to expand if you want to.