KobusC

Thanks Coulomb!!

I have purchased a new Axpert, but the firmware on it is apparently 72.02. Can I downgrade it to the same ver 72.00 that I upgraded my current king to on 16/03/2023? I want to parallel the 2 and need the verslons to be the same. Would anyone know if there was major changes from 72.00 to 72.02?

Morning all Does anyone have firmware 72.02 available for the Axpert King 5Kw? I need the dsp.hex file

Unfortunately SMH does not show my inverter temp. Nor do they show the PV Volts. I did ask them how to get it on the graph but their super intelligent support reply was that the PV Volts is the green section!!! I have contacted Manie to revert back to ICC, as there I remember I could add the voltage, temp or any parameter to the graphs, which does not seem to be the case in SMH. However, after changing my battery float, bulk charge etc voltages to the same as your setup 3 days ago I have not had one freeze yet. As you can see from the graph below (yesterday) it is quite stable. At this stage I am more than happy to keep it as it is until the problem surface again. It does however beg the question if the freeze is actually firmware related or setting related.................. Thanks for the help and info !!!

Thanks for all the settings info Phillip. The old ICC still rocks over SMH !! I did update to ver 72 last night. My 12x340w panels are set up in clusters of 3. My voltage does frequently go to above 115v and up to 120v, even under low load as per attached screenshot just taken.

Phillip Assume the low voltage, max volt is 145v. Can you please sent me your settings on Bulk Charging, Float charging, back to Charge, Back to Discharge and Bat cut-off voltage. Maybe it is something there that is not correct

Verified. Will flash to 72.00 tonight..... 😞

I did verify that the firmware is now 71.94

i am at Kranspoort, Mpumalanga. No cloud cover for the day 😞

Updated my Axpert King to 71.94 last night, hoping the freeze would disappear. Sadly, today at 13h45 it reappeared for no apparent reason!!! 😞 I REALLY do not know what else to do with this irritating issue

Hi Coulomb Ssorry for not replying earlier, long weekend in SA 🙂 Yes I do (Feb2020 purchase). It is a Voltex King 5KVA, not sure what firmware is on it. Will have a look tonight to see if I can find it.

Pipes You are right, it does drop the pv watts to match the current load. In the above case however it drops to zero watts and never recovers unless with manual intervention or when the MPPT resets that night.

P1000 The PV and battery wires does not share a conduit, they are quite separate from each other. If I have a look at the battery volts it was at 54.1v when the pvWatts drop occurred.

Coulomb Sorry, it only appeared like that because I cropped the watts below 1000. Below is the complete graph for the day. When the watts dropped to zero the volts was actually at 95.1 at that point. The input watts stayed at zero while the volts continues to appear, up to 120.2v at the moment I disconnected the panels at 13h02. At 13h10 I reconnected it when the voltage was also zero. Thereafter it continued normally until sunset. Not sure why the watts fall away but the voltage remains, does not make sense.

Pipes Just had a trip around 12h00 😞 I was able to reset it though with my boer-maak-n-plan device 🤠 I constructed a graph showing the values at the trip time. The volts was at 95.1 and the watts at 3159w. Not sure what it means, does not seem to drop that low, unless it is in the 10 minute between measure zone.

I also currently have my 12 panels string up into 2 panels per set. This is my voltage as right now, not sure if this is to low or not?

Hi I see no-one has come up with a solution to the infrequent PV watt drops on our axpert inverters. 😞 A few months ago I decided to install a remotely triggered cut-off switch, triggered by a Sonoff wifi switch that I am able to control from work or wherever. I now have the ability, if I see that a dip has occurred, to cut the panel feeds remotely until the MPPT resets, and then connect them again. This is probably not the best solution and does not solve the root problem, but has taken away the frustration of sitting at work and seeing that the input from the panels is zero and not having the ability to do something about it, now I have! Regards

Hi, thanks for all the advice. System now again running 100% for past week without making any changes. Will leave as is for now and hope for best!

Thx, will test that.

Hi Please assist. My system has been running stable for a few months now, with the odd PV loss issue occasionally. However, since about 3 days ago I have seen a major loss in PV during the day when the sun is shining. It climbs briefly to over 3000w produced, but then dwindles down to below 100w and floats there for the whole day (from a 3900w array) with an occasional spike in production. System consist of a Voltex King 5KVa, 10Kw LifePo4 lithium batteries with built in BMS, 12 x 330w PV Any ideas??

Thanks for the reply Coulomb. Thought it might be a new gremlin......... 😞

Forgot to mention that the PV strings at the inverter do measure their 110v, but inverter does not respond to it.

Hi I have not been experiencing the total PV loss for a few months now since I dropped my bulk charge and float voltages to similar than Gerhard at 52.4v. The system has been running very well up to about 2 weeks ago. I noticed on the remote monitoring that the PV input is 0 for the whole day! When I got home I hard reset it and it was working fine again. A few days later the same thing happened. After hard resetting it again starts using PV. This morning I again noticed the same issue. It appears to be completely random. It was running fine this weekend (see attached) . Today while at work I checked it and saw the same issue. It appears that the MPPT does not reset sometimes during the night?? Any comments or suggestions would be appreciated. installed a Voltex King 5kVa about 6 months ago along with 12x 300w Pv's and 2x 5Kw Lithium batteries.

Hi Sorry for hijacking this threat for my own issue! I installed a Voltex King 5kVa about 6 months ago along with 12x 300w Pv's and 2x 5Kw Lithium batteries. The system has been running very well up to about 2 weeks ago. I noticed on the remote monitoring that the PV input is 0 for the whole day! Weh I got home I hard reseted it and it was working fine again. A few days later the same thing happened. After hard resetting it again starts using PV. This morning I again noticed the same issue. It appears to be completely random. It was running fine this weekend and today while at work I checked it and saw the same issue. It appears that the MPPT does not reset sometimes during the night?? Any comments or suggestions would be appreciated.

Thanks, will see how it performs the next week or so!!