DDC-01 PWM Controller?

Could you please explain how exactly this works? Description is a little vague to me, thank you.

Can be used with 9 drivers (MW) so can dim 108 leds?

Up to 3 channels individually, must have at least one driver per channel.
So can have a max of 3 drivers per channel for 9 total, right?

how does sunrise/daylight/sunset work?

thanks

 

Alright well here it goes;
You can power 3 drivers per channel. So yes a total of 9 drivers. Each channel allows for an on/off function via the "mode" button. So you press mode and channel 1 comes on, press mode again and channel 2 comes on, while channel 1 goes off, ect until the 4th press when all channels become active at once.

Each channel can be dimmed independently, however the settings are never saved so getting a "blended" color from this is NOT possible, alone that is. You either have to put some inline pots, which allow for a blend to be formed, and the controller to handle the intensity dimming or you can use the built in SV2 pot on each driver to control your color spectrum blend. You can use this using the formula as follows. If you want say 75% blues, then you need to take the max mA rating (1000mA) and multiply that by the percent (.75) leaving you with a total max mA (750mA) to tune the SV2 to. Same applies for XP-G whites, max driver mA (1500mA x percent [.75] = 1125mA)

Its basically this... Max driver voltage x desired percent at max input voltage = SV2 Max voltage

The dimming is done via standard 1-10v dimming just like if you were to use a standard manual pot build, with a simple wall wort.

The controller has 3 daylight settings, D1, D2, D3 and each correspond to a different time that the cycle will run. These are preset and are 8, 10, and 12 hours respectively. Each has a half hour up and down ramp. Meaning 1-10v up and 10-1v down. That is the "sunrise/sunset" function. No settings are ever saved, and if power is lost it returns to default settings, hence the need for some inline pots for color blends.

Hope this helps.

 

Atticus hit on most of the main points, but here's a quick summary:

You can run up to 9 drivers with this controller, but it doesn't have to be 3 per channel. You could actually run 9 on one channel if you wanted (not sure why you would though). Sorry if it's vague/unclear but what we mean by "Up to 3 channels individually, must have at least one driver per channel" is that if you want to run 3 channels individually, you must have at least one driver per channel. Some people want to run their blues/whites independently with only one driver, so we're trying to let them know that you can't do that.

As Atticus mentioned during the manual mode program each time you hit mode you'll cycle through the channels. When you're on an individual channel (Channel 1 for example) you can set the intensity to whatever you like by pressing the + and - buttons. You can set different intensities for all 3 channels, then press mode until all the indicator lights on the right side are on at which point all 3 channels will be on simultaneously, with the intensities that you pre-set.

However, once you jump into one of the daylight programs (D1, D2 or D3) you will lose these pre-set intensities. You can only dim ALL three channels simultaneously when running one of the programs (after sunrise you can adjust the intensity of the lights, and the program will remember that setting the next time it runs as well). To get around this you can adjust the SVR2 like previously mentioned to get the color temperature that you want.

Also, the three daylight programs do have varying lengths for sunrise/sunset so it's 30 mins for D1 (8 hours total), 45 mins each for D2 (10 hours total), and 60 mins for D3 (12 hours total).

Atticus, I'm not sure what you meant by "The dimming is done via standard 1-10v dimming just like if you were to use a standard manual pot build, with a simple wall wort." For this controller you wouldn't need a manual potentiometer, though you would still need to adjust the SVR2 which is also a pot (just internal). And for the daylight programs the intensities are saved so the next time you run that program you don't need to adjust it again (or at least they should be, if yours doesn't please let me know).

Thanks,
Mike

 

Hey Mike,

Was just saying that the way the controller dims, is basically the same output (1-10v) as if he/she was to go manual instead of using the controller. I didn't realize the light cycles had varying times though, so that's cool and good to know.

I would have just let you hit this one if I had realized it was in the sponsor forums (like it should be) LOL.

Thanks for the extra clarifications.

 

No worries at all, appreciate your help.