DeeJay

@RichieRich So you are suggesting that I connect the ICC again and see how it goes? See if I have better control with the ICC instead of relying on the inverters BMS and controls?

This could well be what I am seeing. The client wants to run his system in the way described which is why I selected SUB instead of SBU. How would I setup his system to run in SBU? The battery back to grid voltage would need to be set quite high so that it does not run the batteries flat if the solar is not adequate for the load? There is no ICC monitoring this installation, as the BMS was supposed to be doing the job, and the client did not want to pay the extra for ICC.

@Gnome Is it possible to roll back to previous firmware to see if this solves the probem? I have not seen anyone mention this problem on this thread as yet... Maybe it's only in the new firmware??

I was using PYL setting for this inverter. I was using ICC on a different inverter as it did not have a BMS system, which is where I got the Pylon settings from.

@RichieRich Its setup in SUB mode The client has 4000w of solar on the roof and it is setup in this manner so that he can run "off grid" to a degree during the day when the sun is shining. If the grid fails and its an overcast day, then he has his fully charged lithium batteries to power his installation.

Hi there guys, I have been reading this topic with interest. I am having an issue with my clients Axpert King 5kVA that I installed for him. So, here's what is happening... I am getting a continual looped warning (Warning 69) when the batteries (Pylon US2000B x2) are fully charged. Its almost like the BMS is telling the inverter that the batteries are fully charged and not to charge them further. When this warning flashes, battery charging stops. After a few seconds, the warning disappears and the unit charges the batteries as usual. A few seconds later and the warning reappears. This cycle continues endlessly... During the changing of modes of charging, theres is clicking of relays back and forth, and the fan cycles 100%, then stops, as the loop continues... I have tried to change settings in the back to battery voltage range and see if this affects the issue, but it does not. No matter what I set the value at, the loop continues endlessly. Does anyone have any feedback on this? Current version of firmware... U1 - 71 90 U2 - 02 40 U3 - 00 24 U4 - 01 10 I have set the batteries from PYL back to USE and input the suggested ICC Pylon battery settings of: Bulk - 53.2v, Float - 53.2v, Back 2 Discharge - 50.0v, Back 2 Grid - 48.0v, Battery Cutoff - 46.5v Thanx guys

Hi guys, I am also getting this warning on a constant basis when the batteries (Pylon US2000B x2) are fully charged. Its almost like the BMS is telling the inverter that the batteries are fully charged and not to charge them further. When this warning flashes, battery charging stops. After a few seconds, the warning disappears and the unit charges the batteries as usual. A few seconds later and the warning reappears. This cycle continues endlessly... As for what Janhoza said, I think he means that he changed Program 13 (voltage point back to battery) from 54v to 51v and this solved his problem. I am not sure why this would solve the problem though?? Would setting this to a higher value not help? If the BMS tells the inverter to stop charging at 54v and you set this to 58v for example, would this not clear the warning as it will never reach that voltage??