Recent content by Otisd85

Did you get the output voltage calibration sop.pdf from mppsolar as well? It had the instructions to adjust the voltages on each unit through your computer via the rs232 cable port. The process was similar to putting commands into an old ms dos program, or at least that's what it reminded me of...

I got the program software from Ian at watts24/7.com or usamppsolar.com, I believe he is the main distributor for mpp solar in the USA. He was extremely helpful throughout the process of getting my inverters up and running, but I bought my inverters and solar panels through him as well.

Just an update if anyone comes across this thread having similar issues. MPP Solar sent Ian, who forwarded it to me, some software to fine tune the voltages on my inverters and I was able to get them dialed in to 120.0v. So far so good, all my inverters are finally cooperating with each other as...

I have 4 lv6548 inverters that I bought from Ian at watts247.com. I've been having different issues for a few weeks that he's been very helpful with, but we have yet to resolve. He sent me another inverter and at one point one of my LCD displays quit working during a failed attempt at a firmware...

Are any of the lights around the LCD display lit up, particularly the fault light? Does anything happen if you hold the enter button for about 5 seconds?

I'm wondering if anyone running multiple lv6548 inverters has run across the F08 fault code, and how they've remedied the fault? I have 4x mpp lv6548 inverters, the first 2 are set up on line 1 in 2p1 and the second 2 are on line 2 in 2p2. I'm having a lot of trouble with the F08 fault code on...

Not yet. I had my system partially setup temporarily, I'm in the process of moving it to its permanent location and plan on looking into it further once I have it setup again. I emailed Mpp solar, they didn't have a immediate solution, but they didn't say that the inverters won't do what I'm...

So in your example, I'm going to need, 64 panels, 8 combiners, and 8 home runs for my application, am I understanding that correctly? What panels are you using?

Why can't you spilt them? Do the solar panels "push" for lack of a better term, as opposed to the chargers "pulling", like a regular appliance? The inverters will charge from 120vac at 53 amps I think, if they are fed from greater than or equal to that. I plan on having 2x 2p60a breakers to...

I have 4x mpp solar lv6548 inverters and each has 2x 250v 18a mppt inputs. I don't have any panels yet, but I plan to wire my system to handle the maximum for the inverters. My array will end up being about 200' away, and I'm trying to understand the use of combiner boxes. Would it be typical...

I appreciate the suggestions, and understand reducing kw usage is the best way to save money and improve efficiency. But, that's not really what i was trying to ask. I'm trying to wrap my head around what it's going to take to keep my house online while the batteries are charging, weather it's...

They are 280ah cells, so if I understand that math correctly, 120a is less than .5c. Im building a house, so i can't really test my usage at this point. I understand I'm best to limit usage, and i don't plan to run at 100% loads for extended periods of time, but the instances where the water...

I'm still working on this problem, I've contacted mpp solar, they want me to send data logs from watchpower after the inverters have been in a while. They haven't said the inverters won't do what I'm asking, but they haven't said they will either. I have a 8500w split phase 240v generator with...

I've changed the settings to what you've suggested, I'll see what it does once my voltages gets that low and let you know. This isn't really what I'm looking for though, I'd like the input to charge when available regardless of the voltage. If the sun has gone down and I'm at 52 or 53 volts...

I do not have solar available yet, but have plans for it. I'm trying to work out some of the bugs at my on grid home with the input hooked to my breaker panel like a normal appliance, before i take this system to my off grid location where I'll set up the solar panels.