No I have not connected to this inverter via USB as yet; got the error as soon as it booted up so started trouble shooting.

Being a knock off does explain the old firmware it shipped with somewhat.

It did however take that previous fw that you posted and it did start charging battery so at least it runs.

If we did your 2022/07/22 FW on the green screen knock off maybe it would be a close enough firmware version to get rid of error 71.

As I know the source of you inverter now 🤨, I hardly recommend to check the serial# of the clone with solarpower before any flash procedures.
Maybe it is safe to install fw from 2020/04/02 (this is the one I am not aware of any bugs). Actually I've installed this version on all of the 10k's that I'm aware of.

Only some new brand new devices from 2022 run later FW, but all of them have issues.

Ok, sorry about the delay there's no school today so I'm juggling kids as well as this stuff.

As attached apparently it's serial 00002 so that's concerning?

 

 

Edited January 27, 20233 yr by user27

See - this I why I asked.😁
The sticker is fake and the serial# on it is bullshit.
The "real" serial is 96162011600002, which means the CPU mainboard was built in nov '20 (20/11). Well, I guess this is also the serial from the inverter your's was cloned from.😇
Anyhow, I guess it is pretty save to install FW 2020/04/02, so the version you flashed on the other inverter too.

BUT: As always - on your own risk! You never know.

This green screen knock off one is the one that we have already successfully put FW 2020/04/02 onto. You might recall it came with 19-07-09 on it.

Should I try to put FW 2020/04/02 onto the apparently legit yellowish screen one? Even though that would be a firmware downgrade it might allow it to talk to the knock off?

Edit.

My concern with this would be that if it doesn't like the firmware then we don't know for sure that we have a working FW for it. But presumably it would take the older firmware and then with them both on identical firmware they would likely communicate properly?

Edited January 15, 20233 yr by user27

Sorry, I mistook it obviously. That makes things more complicated... 🤔

Hard to say, if your "real" Infini from 2022 is still with a compatible board for FW 2020/04/02.
All devices from 2022 I am aware of, run fw 22/04/28, which is very buggy.
I have a FW upgrade for your real infini (dated 22/09/01), you could give it a shot and see, if parallel compatibility is given then.
If not, I run out of ideas...

BTW: You are absolutely sure, that you configured both inverters correctly for parallel mode?

1 minute ago, riogrande75 said:

BTW: You are absolutely sure, that you configured both inverters correctly for parallel mode?

In a word, no. What am I supposed to configure?

I just hooked the cables up as per the manual and immediately got error 71 which the manual said is firmware not compatible; so I figured the firmware isn't compatible...

In any case, I should do FW 2020/04/02 on the "real" yellowish screen infini and if it doesn't take it then you have a 22/09/01 which would likely allow me to recover it to something that works?

According to parallel installation manual, you need to set "parallel enable" with SolarPower software on both devices.

Ah I'm glad it's just that; yes I believe they both had that ticked by default and I have just checked they both have it ticked for parallel operation.

After checking I tried to put FW 2020/04/02 onto the "real" yellowish screen one such that it would then be downgraded to the same firmware version as the green screen knock off... But it couldn't open the serial port as attached.

I guess this is it not wanting to take that firmware as opposed to an actual com port issue since the usb to rs232 cable already worked once on the other one?

 

Edited January 27, 20233 yr by user27

This is what I was expecting... 😬
New devices (starting 2022/04?) obviously have a new cpu mainboard. Guess this was a unwanted redesign due to component shortage.
These devices seem to have another main cpu and therfor need another/new firmware. Why else would Voltronic come up with a new firmware with version v6.x (dated 2022/...) while it was v1.01 ever before (2015-2021).
I did not have such a device in my hands yet, but since the flash-tool is called ReflashTool_Xseries.exe now, I was expecting that it's not compatible anymore with previous fw versions.

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

I'm afraid no.😭

If you want to spend (much) more time on this, you/we could start analyzing the messages that the inverters exchange for the parallel mode. Guess this commands get sent via the parallel cable(s) and if you "fake" one of them, I could imagine that it would work, even with your actual hardware.
 

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?

On 2022/11/28 at 12:38 PM, riogrande75 said:

@Ali juttyou never stop learning...☺️

What fw version (date) does your device run and what type/brand is it (sticker on side)?

Parallel A version ( old version)
 

Don't really believe that this FW (2.70/2.62) was released for ParallelA nor does your serial number proofs this.
According to my knowledge, all devices with build date 09/2018 and newer are ParallelB.
Since ~04/2022 the devices have a new cpu mainboard, so they need another FW.
 

@Ali juttWhat does U1/U2 (fw production date) say? Can you post sticker/type shield?

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.

 

 

Edited January 27, 20233 yr by user27

Great news! I'm glad u got it working.😁

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.

 

 

 

Edited January 27, 20233 yr by user27

Cool. What kind of battery is connected to the inverters?

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?

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.

 

 

Edited January 27, 20233 yr by user27

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.

 

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.

 

Can confirm, yes, that's exactly what that setting appears to do.

I have ended up setting 90-180-90 on each 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