artful_dodger

That's interesting! I have a Narada lithium. 53V, 52.5V and 44V respectively. Setting 12 is 44V and 13 is 52V but I have ICC controlling it more specifically with SOC (30% back to grid and 55% back to solar) and I'm yet to figure out exactly what settings 12 and 13 should be as to not get in the way of ICC. I have 10 set to Online since the firmware upgrade. On 71.70 I had it set to both Online and ECO with no difference to the utility charging problem.

Interestingly I don't seem to have this freeze/pause issue on 71.70. Last night I upgraded to 71.80 so I'll see what happens from here. Do you think you could look to fix the charging from utility issue (despite anything specified under setting 16)? Or is this more complex than the changes you are working on?

Just a note for people's reference that I upgraded to firmware version 71.80 and this issue still exists.

Hi @Manie which of the inverter options must be selected for a King parallel setup to work through one ICC now with 71.80?

Sorry I thought when you said you have upgraded you meant firmware. Have followed the post instructions from Coulomb. Thanks

Where did you get the firmware @Manie

Yes thanks a lot chaps, much appreciated.

Has anyone with a King managed to stop it from charging the battery from Utility? I have the relevant settings right, ie 16 set to Slb Udc. And in ICC that is reflected as Charger Source Priority = Solar only. But once the battery has hit 50% SOC in trickles 2A from Utility to recharge it (I set the max utility charge current to 2A as that's the lowest setting). Has anyone managed to overcome this?

Just a note on this bit...I tried parallel in the settings using Axpert 5kva Parallel but it doesn't work. Apparently one needs an entire second Pi with its own instance of ICC to work with King's in parallel.

Yes it does

What version are you on @Pieter Annandale ? Mine is running 71.70 which I believe is the latest. Not sure where you'd get hold of the files though.

Thanks. It seems my installer either didn't check his chap's work properly, or doesn't fully understand a parallel setup. As an interim measure I disconnected the inverter-to-inverter PV wiring (ie leaving all 9 panels connected only to the first inverter). Not ideal I know, but the panels are at least all facing the same direction on the same roof face. I'll sort the 1 lonesome string out properly this weekend and run it in to the second inverter. I definitely intend adding panels to that part of the roof in the future. This was just to get going. On the upside my PV production now looks normal. Agreed, that does look rather odd. Not sure what it's about. Thanks Pieter. Mine looks right. Did this solve the negative grid watts or erratic PV production for you?

Thanks Jaco. So I checked the PV input to the inverters. As you suspected, it was running to both. I have 2 strings of 3 on one part of the roof and 1 string of 3 on another which seem to be combined and then run in to the first inverter followed by a connection from the first to the second inverter.

As you said @Coulomb the fact that it isn't dropping to zero probably points to this not being the same issue. I fiddled with some settings, by changing to SBU and setting the max PV charge current to 40A (from 20A) the pattern has changed significantly.

Don't think its clouds, looks pretty clear today. How would I show PV freeze? I have 9 x 330w panels running to the two inverters. From what I can tell if I look at the display on each inverter simultaneously, the combined PV input reading is fairly constant, with one dropping as the other one goes back up in a sort of seesaw pattern. But the fact that there is still grid power being utilised to power what is a relatively small load demand (around 300w at the moment) is concerning. Adding more of the parameters might shed some light? I have the charger source set to solar only, so perhaps all the solar production is being used to charge and thus grid is needed to supply load?

Hi all I've just got my ICC hooked up to my newly installed Axpert King parallel setup (2 inverters). First off, I only have one Pi running at this point, but believe that I need two, one for each inverter. Anyway I'm running in SUB at the moment as I have a Narada lithium battery and obviously these inverters don't monitor SOC very well, so I'm just waiting on a cable from the good ICC people before switching into SBU. I'm looking at my PV and Grid graph and it seems rather odd, with constant drop offs in PV and grid kicking in I believe to make up the momentary shortfall. Any thoughts? I can't imagine this is normal behaviour, so maybe settings related? Or wiring?

I thought I'd reply here to try keep things related to this issue in one place. FCS is in Germiston, JHB (http://www.fullcirclesolar.co.za). Not sure they'd be able to help with firmware though. Also, according to @Coulomb the King's latest firmware version is 71.70 whereas other Axpert inverters have different firmware completely and therefore different version numbers in the 72.xx range.

Thanks very much Coulomb

Sorry to hijack the thread, but the images are very helpful and raised a question for me. I have a King. Under what circumstances does it just run Utility straight to the load (ie bypass?) And can I force it into this mode?

Out of interest what firmware versions are people with this issue running? I ask because I recently acquired two Kings from FCS and the firmware appears quite outdated (perhaps Coulomb can confirm)? I'm still getting my ducks in a row with regards to monitoring, but I'll report back if I experience the same issues as Jaco, Peter and co.

Done a bit more research and if it's compatible in the same way as the Pylontech (ie not really) then not really. The ICC chaps are working on a cable and integration similar to what they've done with the Pylons though. So there is hope.

Probably not to both questions?

Hi everyone Given how new leoch batteries seem to be would it be correct to assume that Axpert ICC software doesn't yet handle soc monitoring like it can with pylons? And then assuming the above is correct, would a BMV do the trick?

What about this one: https://www.solarsolved.co.za/index.php/products/axpert-vm5kva-5000watt-48v-off-grid-inverter-charger-450-detail If you download the spec sheet it's branded Voltronic. But obviously not the Mecer version we most often see. Is this a legitimate Voltronic unit?

Add me to the list for the whole lot...