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#1
05-30-2013, 09:42 PM
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Quote:
__________________
Wow! That's Crazy! Why would you spend that much and go through all that trouble? 
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#2
05-30-2013, 10:19 PM
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Hmmm, weird. Mine's not noisy at all. Have you metered it out to confirm the voltage? It may not be putting out what you think.
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#4
05-31-2013, 07:53 PM
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Can some one help me with wire sizes.
PS 48V 350W 7.3A powering two boards. Each board has 4 (LDD-H1000) Each LDD-H1000 4 (10W 11V 1A) LEDs Need to know the wire sizes between power supply to the boards and from board to the LEDS. Thanks, Kevin
__________________
Wow! That's Crazy! Why would you spend that much and go through all that trouble?
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#5
06-01-2013, 01:41 AM
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I was encouraged to go 18 ga min for psu to board and 20 from LDD's to LED's. There's a couple links back a page or 2 when I had a similar question. Check them out.
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#6
06-07-2013, 12:38 AM
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Got a wee bit done this morning over my coffee. Drilled one of the heatsinks to within about 1/8" of the back of the 3-up stars since they'll be on the longest and probably run the hottest. Then a bit of thermal epoxy dabbed in the hole and plunked a DS 18B20 sensor down in there. I need to find a way to block off this vane a bit to try and make it not so affected by the fan, thinking of just cutting a tight fitting piece of foam or something and gluing it down in there between the sensor and fan.
I'll try and wire a bit of it tomorrow morning. 
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#7
06-09-2013, 05:26 PM
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Well, I fired up my Jarduino for the first time with everything hooked up. All the new cables, temp sensor for water and heatsink fans, etc. So far it looks like all the LED circuits are working as planned, the temp sensors are working, but I can't get the heatsink fans to run. Hmmm, no idea why. According to the drawing I have for the fan circuit, it says to use PWM pin 45 on the Arduino and pin 48 for the fan enable, but I went through the sketch and I think it's actually PWM pin 44 and 47 for the enable. So I used those but nothing...
Temp is holding steady at 27.5 C. I turned down the temp value so the fan should have come on at 20C. If there's a PWM signal from the arduino, where and what would I measure in the circuit?
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