Anton654

I think you should try dropping the Max generator input and dropping the generator charge battery.
Im pretty sure all inverter generators have AVR so its probably just trying to pull too much power from the genny.
If you drop them until it starts working then at least you are getting some charge into the batteries, in an extended outage that is very important. 

Set genny stop voltage at 54V from 48V. Also set the genny charge Watts to 300W with no loads on the inverter. Then try and see if you can at least keep the inverter happy and the genny not taking strain. Then you can gradually increase the charge Watts. 
Good luck and if it does not work try running without inverter and run bare essentials while you have the long power outage. 
Guys let's try and help Anton while they are heading to 24hrs without power. 

Hi guys
We recently got a brand new Lux Powertek 5kW installed at my parents place with a 100Ah shoto lithium phosphate battery (not yet connected to comms port, and the installer set the inverter to lead-acid mode...), and am also seeing this "EPS Voltage High" error which randomly occurs sometimes whenever switching from grid to backup. It seems to mostly happen at night after 12am, when lights are off and the load on the inverter is low...
I've called the installer and he doesn't seem to know what the problem could be, suggesting that he may need to "come and check the configuration on the unit"...
My model shows as 66944, firmware version: cbaa-121613
I assume that this isn't a hardware fault on the inverter itself, so I hope that we won't need to get the whole inverter itself replaced, only to find that the same issue occurs on the replacement unit?
Our setup doesn't have any SPDs. Just a common ELCB in the main breaker box, and a sub panel with two 32A breakers (Inverter in, inverter out) with a 40A changeover switch between each of them (the inverter is wired to the db)
One other thing I should probably mention, is that I noticed the installer didn't set the correct mains voltage for the unit when we had it installed. It was still set to 208V AC... So, the day after we had the unit installed, I went through the config and manually adjusted this to 230V accordingly (using the web gui at https://af.luxpowertek.com/WManage/web/maintain/remoteSetOffGrid), and it was the night after doing that ,that we first encountered this problem... I'm not sure if this was a co-incidence or not, but I find it difficult to believe that this has anything to do with the error message as 230V is obviously in line with our designated mains voltage here in SA , so the amended configuration should work correctly as far as I would expect
From what I understand, the EPS voltage refers to the inverter's OUTPUT voltage. So if it's complaining that this is too high, then it means the abnormal surge is on the output side? Perhaps lowering the configured voltage to 220V instead could alleviate the problem?
Edit: I've just set my EPS voltage to 220 (from 230), and will be testing to see if the problem occurs again in the coming days! I can confirm that it can safely be adjusted on the fly, even while the inverter is supplying backup power, which is also pretty neat.
I hope to change this back to 230V but would need to first try the firmware update route... Where can we obtain the latest firmware?
Our unit is vertically wall-mounted and should be more than sufficiently ventilated, so I highly doubt that is the problem?...
Paid a pretty penny for this system, so naturally not very impressed by this issue, although I have to admit it does seem like a very capable inverter apart from this
Any tips would be greatly appreciated, thanks a million

I also set the unit to 220v but also got a firmware update and haven't had the issue since. 
What I do battle with is the battery voltage high error on the shoto with bms comms. This one still stumps me
Edit: the firmware update process restarts the inverter so best to have thegrid bypass on when it runs

Hi, I recently got a 5kva LuxPowerTek inverter with a Dyness lit battery. You have an option to monitor the setup on an app. I got an error this morning, when loadshedding started it was unable to supply backup power. I restarted the inverter and then it was working afterwards. 
The inverter is not connected to the db board, it comes as a pre assembled trollie setup. 
I noticed on the app that I got the same errors since I got it and it seems to occur everytime loadshedding starts and when it switches over to supply backup power. Error EPS Voltage High. 
Can anyone maybe assist or advice. Thanks.