Resetting Meanwell SVR1

Ermin · 09/04/2013, 07:36 PM

During one late night trouble-shooting my new LED build, I adjusted the SVR1 knob on the Meanwell ELN-60-48D driver for testing. At the end, I found that it was my circuit rather than the driver being faulty.

I turned the SVR1, and then turned it back, by eye, to where it used to be at. But I know a slight 1/16 of a turn on the SVR2 changes the amperage by a lot. So just merely turning the SVR1 back, by eye, is not very accurate. I want to make sure the SVR1 is within range for my 12 LED string. What is the default reading it is supposed to be at?

Thanks in advance!

mcgyvr · 09/05/2013, 05:13 AM

With 12 LED's you can just turn it all the way down if you want. Max voltage should be around 43.2 volts then which should be plenty for your string. If it doesn't light or flickers turn it up some.. Its really not that important.

Ermin · 09/05/2013, 04:12 PM

Would it be correct to assume....each Cool White CREE running at roughly at 3.2 volts. With 12 LEDs, it is 38.4 volts. If I measure the output of the Meanwell (when it is connected to the LED string)...as long as it is outputting higher than that, it is fine?

Since you said max voltage on the Meanwell is about 43.2V, so essentially, I don't have to check it unless it doesn't light up?

mcgyvr · 09/06/2013, 05:10 AM

yes and yes (but correction I meant min voltage is 43.2V not max)

Ermin · 09/06/2013, 08:45 AM

If minimum output voltage is at 43.2V instead, ..... If its turn up higher than what the leds can handle, wouldn't that fry the whole string? So, if that's the case, I definitely need to check the voltage. I'm confused on why you say it is not very important. Thanks!

09/04/2013, 07:36 PM	#1
Ermin Registered Member Join Date: Feb 2000 Location: Los Angeles Posts: 261	Resetting Meanwell SVR1 During one late night trouble-shooting my new LED build, I adjusted the SVR1 knob on the Meanwell ELN-60-48D driver for testing. At the end, I found that it was my circuit rather than the driver being faulty. I turned the SVR1, and then turned it back, by eye, to where it used to be at. But I know a slight 1/16 of a turn on the SVR2 changes the amperage by a lot. So just merely turning the SVR1 back, by eye, is not very accurate. I want to make sure the SVR1 is within range for my 12 LED string. What is the default reading it is supposed to be at? Thanks in advance! __________________ 150G reef: SPS dominant (4 sets of DIY LED fixtures; with 36 CREE on each) 40G frag tank @ 2: (2 sets of DIY LED fixtures on each) 8G freshwater shrimp tank; 20G and 40G planted tanks

09/05/2013, 05:13 AM	#2
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	With 12 LED's you can just turn it all the way down if you want. Max voltage should be around 43.2 volts then which should be plenty for your string. If it doesn't light or flickers turn it up some.. Its really not that important. __________________ Who me?

09/05/2013, 04:12 PM	#3
Ermin Registered Member Join Date: Feb 2000 Location: Los Angeles Posts: 261	Would it be correct to assume....each Cool White CREE running at roughly at 3.2 volts. With 12 LEDs, it is 38.4 volts. If I measure the output of the Meanwell (when it is connected to the LED string)...as long as it is outputting higher than that, it is fine? Since you said max voltage on the Meanwell is about 43.2V, so essentially, I don't have to check it unless it doesn't light up? __________________ 150G reef: SPS dominant (4 sets of DIY LED fixtures; with 36 CREE on each) 40G frag tank @ 2: (2 sets of DIY LED fixtures on each) 8G freshwater shrimp tank; 20G and 40G planted tanks

09/06/2013, 05:10 AM	#4
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	yes and yes (but correction I meant min voltage is 43.2V not max) __________________ Who me?

09/06/2013, 08:45 AM	#5
Ermin Registered Member Join Date: Feb 2000 Location: Los Angeles Posts: 261	If minimum output voltage is at 43.2V instead, ..... If its turn up higher than what the leds can handle, wouldn't that fry the whole string? So, if that's the case, I definitely need to check the voltage. I'm confused on why you say it is not very important. Thanks! __________________ 150G reef: SPS dominant (4 sets of DIY LED fixtures; with 36 CREE on each) 40G frag tank @ 2: (2 sets of DIY LED fixtures on each) 8G freshwater shrimp tank; 20G and 40G planted tanks