Relay Box with PWM?

[alexwbush]

I know at least one of my 3 relay boxes has it. How do I tell which one without taking the system down to compare all 3?

[rimai]

If it has screws on the top cover, it has it.
The older ones had screws in the bottom cover.

[alexwbush]

Roberto, I think all of my boxes look the same. I'm a reef angel legacy owner. I added the PWM later. PWM was pretty new at the time.

[alexwbush]

Well, you were right. I have 1 box with screws on the top cover and two with screws on the bottom. If I remember correctly, you sent me a booster for one of my early boxes. Are all of these boxes PWM? Or are they analog? I am trying to wrap my head around PWM vs analog dimming.

What about the I/O expansion? Are these PWM but only up to 5V?

[rimai]

The one with screws on top is a new one and would have the booster built-in.
They would be PWM dimming.
The I/O can't generate PWM nor analog signals. You would need the dimming module.

[alexwbush]

Thanks Roberto! I think one of other ones might have it too, but I suppose I'd have to open it to find out.

Two other hopefully quick questions:
1. If I have two PWM boxes, can I control 4 channels? Or am I only able to use the two on the primary box?
2. Do you know if PWM allow "deep dimming"? I'm trying to find a solution to replicate radion's ability to smoothly dim to moonlight.

[rimai]

Only the main box.
The only drivers I know that can do that are the LDD and SteveLED and they are both 0-5V PWM.

[alexwbush]

I'd never thought about LDD. I'm moving in that direction with research now. So the older boxes that I have are PWM as well only up to 5V? Or are they possible analog? I'll probably end up needing to buy a couple more items (building my shopping list now). I have done "D" series drivers that I ran on my last tank using the RA. Maybe that was a mistake, but I could have sworn we discussed it back when I was brand new with the RA.

[rimai]

The older boxes probably don't have a booster at all. It was an optional item in the past.
Depending on which revision, you maybe able to make it 0-5V PWM by adding 2 jumpers or 0-10V PWM with an add-on booster board, which you would need to PM me to get a hold of one.
You would need to see which revision it is that you've got.

[serhiyi]

I have old relay box and I have 0-10 PWM booster. Is there an easy way to make it 0-10 Analog? Maybe a simple replacement of the 0-10 PWM booster to 0-10 Analog booster&converter? Or something that can be put past RA controller to smooth signal to analog before it reaches drivers?
My SB Reef basic light are flickering (I guess due to PWM).

[rimai]

Open the relay box and give me the revision written on the board or send a photo.

[serhiyi]

There is no version that I can see.

20201208_104318.jpg (406.51 KiB) Viewed 3564 times

Booster is shown in bottom right corner.
This is the booster I have.

20201208_104507.jpg (186.97 KiB) Viewed 3564 times

20201208_104536.jpg (176.55 KiB) Viewed 3564 times

Thanks.

[rimai]

You are going to have to get a new box or make another pcb booster daughter board that has the analog conversion.