user27

Yes I run Solar Assistant and have always been very happy with it. There was an initial issue where it would report 100,000w any time a 10k inverter went over 9.999w from grid (charging at 10kw plus existing EPS loads); but he logged in and tweaked it for me to fix that issue... Now I can't update because it would break the adhoc fix. I also believe Rio wrote an interface for these things but when I tried it was apparent that I didn't have the skill set to run it!

Probably always had the issue; firmware flash made no difference.

LionKing yes serial only I couldn't get it to do anything over USB either; I used and would recommend a ugreen USB to serial adapter that worked great. Took about a quarter of an hour to do the 550kb flash at 10 of about 7,000 blocks/second. I have just reflashed the firmware on my 10k's trying to solve a settings issue without success. My issue is that they don't reliably take the AC charge time settings on the mypowermanagement dialogue. Say I set it to 00:30-04:30 when that's the cheap rate my energy supplier gives me to top up charge my batteries over night this time of year when solar generation is low... Sometimes one inverter takes the setting and the other one doesn't but mostly they both ignore it. Others SolarPower settings are fine like I can reliably set charge amps or enable/disable AC charging and those settings are effective immediately. If anybody has any experience of this issue or knows any other way to change these settings in case it's a SolarPower app issue please let me know? Thanks for reading!

I have been running my 10k inverters work Pylontech batteries and no BMS link; the BMS still managed the balancing etc so I'm not really sure what benefit you would get from linking to the BMS? Maybe just accurate percentage charge displayed on the inverter?

Morning everybody, I need to somehow set a one off charge on these inverters if anybody knows a way? These 10k inverters have been working great since I did the 10mm cable and upgraded the breaker feeding them from grid. Now Octopus have a new trail running where they give 2hr of free power on days where the forecast shows the grid is going to be saturated with surplus solar in the afternoon. Obviously I'd like the charge at 20kw (dual 10k inverters) during this free power window; however it's not every day and we get less than 24hr notice that it's going to happen. I have been through the SolarPower software and I can't find anything for a one off unless anybody knows a way to do it there? I tried setting ad additional charge window ahead of time where I currently have 00:30-04:30 I added 14:00-16:00 to the second line on both inverters... But when the time came nothing happened! I'd be keen to find out why nothing happened but either way this would be a pain to have to plug in a laptop to set it before and then again to under it after after every free power window. I have been through the manual and it seems there's a dry output and a 230v relay output; but I can't find an input pin which would cause it go charge from grid. Am I missing something? Any suggestions on how I could achieve this would be greatly appreciated! Thanks, Alex

Morning everybody, I need to somehow set a one off charge on these inverters if anybody knows a way? These 10k inverters have been working great since I did the 10mm cable and upgraded the breaker feeding them from grid. Now Octopus have a new trail running where they give 2hr of free power on days where the forecast shows the grid is going to be saturated with surplus solar in the afternoon. Obviously I'd like the charge at 20kw (dual 10k inverters) during this free power window; however it's not every day and we get less than 24hr notice that it's going to happen. I have been through the SolarPower software and I can't find anything for a one off unless anybody knows a way to do it there? I tried setting ad additional charge window ahead of time where I currently have 00:30-04:30 I added 14:00-16:00 to the second line on both inverters... But when the time came nothing happened! I'd be keen to find out why nothing happened but either way this would be a pain to have to plug in a laptop to set it before and then again to under it after after every free power window. I have been through the manual and it seems there's a dry output and a 230v relay output; but I can't find an input pin which would cause it go charge from grid. Am I missing something? Any suggestions on how I could achieve this would be greatly appreciated! Thanks, Alex

Can confirm, yes, that's exactly what that setting appears to do. I have ended up setting 90-180-90 on each inverter.

Do these things normally pull 750w from grid even when they are supposed to be running off battery? Attached is wattage per phase going into the inverters from grid; this would ideally be 0w during premium rate grid tariff in the day. I see a setting for R S & T "feeding grid power calibration" do you know if I could set an adjustment there? Or somewhere else to stop this constant draw from grid at expensive rate? The constant 750w during peak time costs £6-£7 per day currently.

Looks like the AC side will be wanting a bigger breaker and chunkier cable though; currently pulling 50A on L1 on a C50 breaker but I do have a 63A and some 10mm HO7 earmarked for it.

Managed to get a 95mm copper battery cable up to 33c in 5c ambient; although the negative doesn't look as warm so I might nip that + terminal up a bit. I have the 400A charge split across five sets of PylonTech long DC cables; I think they are crappy aluminium cables but reasonably chunky and none of them are much over 20c at the battery terminals.

I have a couple of racks of PylonTech US5000 batteries connected to them. I do have a MODBUS card to hopefully have the inverters talk to the BMS; although it didn't immediately work so I haven't got into what the issue is as yet. I also have MODBUS metering by Rayleigh Instruments on the incoming and I'd really like to have it backfeed towards the grid based on what the incoming meter is seeing; try to keep it at 0w on the whole supply during peak rate; but the MODBUS card in the inverter didn't seem to want to talk to that either. There's some information floating about showing that the RS495 addressing for it all is somewhat unconventional with infini?

Now it doesn't complain about overload when it's pulling 200A from the battery without it being balanced across the phases; muuuch better. Will see if anything goes bang when they (hopefully) start charging at 400A from cheap rate tariff later tonight. I'll get the thermal camera out and give the DC side a once over too; make sure nothing is getting too toasty.

I think we have a winner with the replacement inverter from an alternative source; now I have got one that says SL-PAL and one that says HL-PAL as attached. Discharge seems to be roughly balanced between them. I was initially a little surprised to see that they disagree about battery voltage and grid voltage; but I guess there's always going to be a bit of variation where one of them sees 48.74v and rounds it to display 48.7v while the other one sees 48.75v and rounds it to display 48.8v. So anyway, confirmed it was an issue with the inverter from Foshan Ouyad as expected. Thanks again for your help.

I asked and they specifically stated that it would work for parallel operation; so they should accept return. If not then I guess ali have to step in. Where do I buy a "real" one?

So the long and the short of it... These two can't run in parallel?