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Thread: LEDControl4 Passive and Meanwell LDD drivers

  1. #1
    Join Date
    10.11.2012
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    Salamanca
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    61

    Default LEDControl4 Passive and Meanwell LDD drivers

    Hi all: I'm trying to figure out how to connect and wire, if possible, the LEDControl4 Passive and these Meanwell LDD drivers

    http://www.meanwell.com/search/LDD-H/LDD-H-spec.pdf

    which work with a PWM signal between 2,5 and 6 V.

    I think the main problem is to know what is the signal used by LEDcontrol4, ¿5 V? ¿10 V?

    These drivers have several advantages over the traditional ELN or HLG D or P drivers. One: very small size; second: they are offered in several models each regulated at a certain current (300 mA, 700 mA and 1 A), third, they have PWM dimming from 0 to 100, instead of having a step between 0 and 15-20% like the HLG series, making dimming very smooth. Taking everything into account they are a very interesting alternative to dim several channels avoiding the use of several bulky ELNs drivers (a single power supply would be enough for all LDD drivers used).

    Thank you

  2. #2
    Join Date
    19.02.2009
    Posts
    2,976

    Default

    The LEDControl4 passive do not produce - lets say - a "voltage level" signal.
    The outputs are "switched" to ground potential (the driver - pin).

    If you need a signal with an defined voltage, you need to add the voltage signal via a so called pullup resistor to each driver pin.
    see: http://support.aquariumcomputer.com/...2011-02-11.pdf

  3. #3
    Join Date
    10.11.2012
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    Salamanca
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    Default

    Frank, thank you for your response. If I understood it well, and sorry for my ignorance, that means that I have to connect a low voltage power supply (let's say 10 V) and lower it with a resistor so as to achieve the voltage required by the driver.

  4. #4
    Join Date
    19.02.2009
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    2,976

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    If you need a 5V Signal, it would be better to add a power supply with 5V to the Pullup resistors.
    If I look to the datasheet, it's not clear if you really need the additional power supply and the resistors.
    Maybe the manufacturer of the module could answer this...

  5. #5
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    10.11.2012
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    Default

    Thank you Frank. I'l try to check that out with the manufacturer of the LEDs. Also I'll look for pull-up resistors diagrams and learn how they work.

  6. #6
    Join Date
    25.05.2010
    Posts
    7

    Default

    Hi,

    Meanwell didn't put any information about addittional power on the pwm, but like the meanwell ELN-60-48P (on the forum and the datasheet didnt mention it... -> datasheet ELN-60-48P

    I have the same problem, and work on the pullout resistor for 3days now :/
    I put a power DC12V 300mA on the pullup and 2kohm I get 9.7V and still no control light via profilux (light on but no effect via profilux)... anyway I try to 500ohm to 4.7Kohm still no effect and tension still around 10V :/

    I finally try a 47kohm resistor and yes Light on and control via profilux.... any way with the ELN-60-48P in this case I figure out that he need 1.23V to start light...

    I go back to my tank room and will give more info when all test and install finish.

  7. #7
    Join Date
    11.01.2013
    Posts
    9

    Default

    Quote Originally Posted by Gris View Post
    Hi,

    Meanwell didn't put any information about addittional power on the pwm, but like the meanwell ELN-60-48P (on the forum and the datasheet didnt mention it... -> datasheet ELN-60-48P

    I have the same problem, and work on the pullout resistor for 3days now :/
    I put a power DC12V 300mA on the pullup and 2kohm I get 9.7V and still no control light via profilux (light on but no effect via profilux)... anyway I try to 500ohm to 4.7Kohm still no effect and tension still around 10V :/

    I finally try a 47kohm resistor and yes Light on and control via profilux.... any way with the ELN-60-48P in this case I figure out that he need 1.23V to start light...

    I go back to my tank room and will give more info when all test and install finish.
    So are you saying you are using DV12v powersupply and a 47kOHM pullup resistor on the LDD drivers in order to have PWM control through the P3eX?
    Next week I am getting my LDD drivers myself and wondering how to properly use my 2x LEDControl4 Passive with them.

  8. #8
    Join Date
    25.05.2010
    Posts
    7

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    Finally I get it to work I was not on the right way whan I post but get a very powerfull electronic regulator for very sensitive setting on the volt and resistances..

    I need to sleep and post here very soon my almost perfect solution about communication over PWM

  9. #9
    Join Date
    11.01.2013
    Posts
    9

    Default

    Quote Originally Posted by Gris View Post
    Finally I get it to work I was not on the right way whan I post but get a very powerfull electronic regulator for very sensitive setting on the volt and resistances..

    I need to sleep and post here very soon my almost perfect solution about communication over PWM
    Could you share more info please. What drivers do you use - Meanwell LDDs? Also what type of voltage regulator, diming line power source etc etc. Will appreciate it!

  10. #10
    Join Date
    25.05.2010
    Posts
    7

    Default

    I Will, not enougth Time right now too draw the wirring with components.

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