Darren67-72
Off grid
Boy-howdy, me too.
Good luck and good night.
Good luck and good night.
Hi... Could you confirm that you found your battery to battery cables to be pin-to-pin with none crossed. Thanks!I had a hard time with pin one. Might be crossed... maybe.
Again, you could use 4 cables, as if you only had 4 batteries. Then try the Li again.
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Thanks very much for double checking the cables!! I know it was probably a hassle but much appreciated! At first (the other day) I was thinking in terms of Ethernet and it would of been a problem. But I was overlooking the fact that they talk in RS485 which is indeed a two wire transmission using differential voltages on just two wires. I used a provided USB to RS45 cable from S.S. to confirm that they were indeed using just pins 7 and 8. So in theory, having 1 and 2 crossed shouldn't matter (or 4 and 5 for that matter). But then again, who knows how things are wired internally.Ok, confirmed!!! Every wire straight through. NO cross wires, I triple checked 1 and 2 also 7 and 8.
Hello, i am having the same problem and solar was installed by a solar company(well so they claimed) I contact them to explain why I paid for a 3600watt system and is being capped at 2600watt and 50 amp chargeThanks very much for double checking the cables!! I know it was probably a hassle but much appreciated! At first (the other day) I was thinking in terms of Ethernet and it would of been a problem. But I was overlooking the fact that they talk in RS485 which is indeed a two wire transmission using differential voltages on just two wires. I used a provided USB to RS45 cable from S.S. to confirm that they were indeed using just pins 7 and 8. So in theory, having 1 and 2 crossed shouldn't matter (or 4 and 5 for that matter). But then again, who knows how things are wired internally.
Just to double check, you are using eg4-LifePOWER4 batteries (no screen) and how many?
Anyway, with more looking into the RS485 communications, I read that although it's a two wire protocol, it requires a common ground reference voltage of zero for all communicating nodes (i.e. inverter and batteries) to work best. I did not have my batteries grounded yet! They are supposed to be grounded by bolting them to the rack but S.S. sent me a rack with all the nuts in the wrong location for bolting the batteries in (non of the four holes on the battery flange lined up with the nuts). I didn't notice until all the batteries were in and wired. Not about to pull everything so just didn't worry about it (not like they were going anywhere). Didn't realize ground could impact the communications! Well, after getting everything grounded, the communications must of improved because I'm seeing higher draws from the solar panels now!!! Power charts are making more sense and I'm seeing solar power where you can see normal fluctuations (not flat-line stair steps as before). There is still some stair-stepping but it is always at well defined battery SoC levels (95%, 90%, etc.) and MCC (Max Charging Current) is being set automatically by the inverter also at well defined levels (25A, 50A, 100A (I could NEVER get it past 50A before)). I'm assuming this is to take it easy on the batteries when they are near the top end of charged. To see if it ever pushes past MCC of 100A (my panel array would probably at max put out 120A), I'll need to put a heavy heavy load on near maximum illumination part of the day.
So, I'm feeling better but need to do a bit more monitoring. If you have a few minutes... could you look at this chart and see if it looks now like reasonable behavior? Thanks!
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