Help! Meanwell LDD not reacting to PWM signal

jbennicoff · 06/06/2013, 09:38 AM

OK, I am at the end of my wits with this thing...

I have an DIY LED setup I got from Steve's LED's. I am powering 72 luxeon LED's split over 5 Meanwell LDD-HW drivers. 4-1000ma (2 driving 16 ea RB, 1 driving 16 5k white, and 1 driving 9 TV) and 1-700ma (driving 4 OCW arrays of 3 each plus an extra 3 CB). The drivers are powered by a 48v 7.2a 360w power supply, and the pwm signal is supplied by a Steve's LED's Controller converting the 0-10v VDM signal from my Apex. I have measured the correct outputs from my apex with a multimeter and done the same with the pwm outputs from the Steve's controller (The pwm outputs are slightly more than half the corresponding voltage from the apex). I have also double and triple checked my apex programming. The LDD drivers are running full-out. They DO NOT DIM based on the pwm input. What am I missing here?

Thanks for any and all help.

thelostrican · 06/06/2013, 09:43 AM

I have no idea, your probably going to get more awnsers at the DIY forum...
How do you like the ocw. Do they blend it all.Got some pics of the setup...

jbennicoff · 06/06/2013, 11:29 AM

Thanks. I will post over on DIY.

the OCW is OK. I get some disco on the cyan. If I were to do it over again I would have gotten the 3up OCW from LED Group Buy.

J.

06/06/2013, 09:38 AM	#1
jbennicoff Registered Member Join Date: Apr 2013 Posts: 15	Help! Meanwell LDD not reacting to PWM signal OK, I am at the end of my wits with this thing... I have an DIY LED setup I got from Steve's LED's. I am powering 72 luxeon LED's split over 5 Meanwell LDD-HW drivers. 4-1000ma (2 driving 16 ea RB, 1 driving 16 5k white, and 1 driving 9 TV) and 1-700ma (driving 4 OCW arrays of 3 each plus an extra 3 CB). The drivers are powered by a 48v 7.2a 360w power supply, and the pwm signal is supplied by a Steve's LED's Controller converting the 0-10v VDM signal from my Apex. I have measured the correct outputs from my apex with a multimeter and done the same with the pwm outputs from the Steve's controller (The pwm outputs are slightly more than half the corresponding voltage from the apex). I have also double and triple checked my apex programming. The LDD drivers are running full-out. They DO NOT DIM based on the pwm input. What am I missing here? Thanks for any and all help.

06/06/2013, 09:43 AM	#2
thelostrican I hate to post Join Date: Dec 2006 Location: Borinquen Posts: 222	I have no idea, your probably going to get more awnsers at the DIY forum... How do you like the ocw. Do they blend it all.Got some pics of the setup... __________________ Upgrading!!! 120 to 180.... Current Tank Info: 120 long tank...that looks like an investment bank....

06/06/2013, 11:29 AM	#3
jbennicoff Registered Member Join Date: Apr 2013 Posts: 15	Meanwell Thanks. I will post over on DIY. the OCW is OK. I get some disco on the cyan. If I were to do it over again I would have gotten the 3up OCW from LED Group Buy. J.