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. 

Edited December 16, 20222 yr by Anton654

Was getting similar errors on an install, had to upgrade the firmware. Try doing that and see if that helps 

Thanks, I will try that 👍

Hi

Are you getting sufficient cooling with your fan cooled inverter lying horizontally?

Manual advises vertical mounting

Cheers

Had the same problem and then installed a SPD on the AC in and the problem went away.  I assume it is the power surge when power is restored after load shedding that is causing the problem

4 hours ago, RiaanC said:

Had the same problem and then installed a SPD on the AC in and the problem went away.  I assume it is the power surge when power is restored after load shedding that is causing the problem

Hi Riaan - have been getting the same error even after the software upgrade. Could the SPDs be faulty and need replacing?

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

Edited December 23, 20222 yr by FragtioN

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

Edited December 23, 20222 yr by mzezman

I'm still experiencing this EPS Voltage High error, even on 220v. Anyone else got similar issues? What's the solution for this?

24 minutes ago, FragtioN said:

I'm still experiencing this EPS Voltage High error, even on 220v. Anyone else got similar issues? What's the solution for this?

Without just accepting the voltage in SA is 230V have you actually measured it the moment it goes from battery power?

Some areas on the West Rand get up to 250V.

Edited December 27, 20222 yr by Scorp007

57 minutes ago, Scorp007 said:

Without just accepting the voltage in SA is 230V have you actually measured it the moment it goes from battery power?

Some areas on the West Rand get up to 250V.

EPS Voltage refers to output voltage from the inverter.  The EPS Voltage High error problem occurs for me when the inverter switches from Grid to battery backup.

The inverter voltage can be set to either 208V, 220V, 230V, or 240V. I had it "correctly" set to 230V in accordance with nominal grid spec, but it seems this error occurs regardless of what the voltage is set to?

Also, it seems to be correlated with load on the inverter. If there's no load, the error is easy to reproduce by simulating a grid outage. As soon as I put a fair amount of load (a 1000W hairdryer, for instance), then the inverter fails over to battery reliably.

I don't really see what the input grid voltage has to do with any of this, unless I'm missing something of there's been a bit of a misunderstanding.. but I guess any tips are welcome in this struggle, lol

Edited December 27, 20222 yr by FragtioN

1 hour ago, FragtioN said:

I'm still experiencing this EPS Voltage High error, even on 220v. Anyone else got similar issues? What's the solution for this?

Did you get a software update? 

6 minutes ago, mzezman said:

Did you get a software update? 

No, my installer wanted me to install SOLARMAN app, and I couldn't get the inverter to adopt in that app. I then managed to get it to work on the Luxpower app instead on my own (he's been too busy to help me as its christmas time...), but have no way of installing a firmware update from there. I don't think my installer knows what he's doing and now that I need the firmware update, I don't have proper access to my own equipment.. ffs. Apparently need to email luxpower. Really??..

Edited December 27, 20222 yr by FragtioN

1 hour ago, FragtioN said:

No, my installer wanted me to install SOLARMAN app, and I couldn't get the inverter to adopt in that app. I then managed to get it to work on the Luxpower app instead on my own (he's been too busy to help me as its christmas time...), but have no way of installing a firmware update from there. I don't think my installer knows what he's doing and now that I need the firmware update, I don't have proper access to my own equipment.. ffs. Apparently need to email luxpower. Really??..

Solarman? I wasn't aware that luxpower also used it. The luxpower app is decent but yes either installer or luxpower support need to push down the firmware. It's the same with sunsynk/deye inverters as well

8 hours ago, FragtioN said:

EPS Voltage refers to output voltage from the inverter.  The EPS Voltage High error problem occurs for me when the inverter switches from Grid to battery backup.

The inverter voltage can be set to either 208V, 220V, 230V, or 240V. I had it "correctly" set to 230V in accordance with nominal grid spec, but it seems this error occurs regardless of what the voltage is set to?

Also, it seems to be correlated with load on the inverter. If there's no load, the error is easy to reproduce by simulating a grid outage. As soon as I put a fair amount of load (a 1000W hairdryer, for instance), then the inverter fails over to battery reliably.

I don't really see what the input grid voltage has to do with any of this, unless I'm missing something of there's been a bit of a misunderstanding.. but I guess any tips are welcome in this struggle, lol

In my reply I suggested when you have the EPS problem have you actually measured the output voltage when the inverter goes over to provide power from battery on your low loads. 

I do understand that you have set it to different voltages. 

The idea is to verify that the output voltage differs at below 1000W load and above in order to see how well it regulates. 

On 2022/12/27 at 11:41 PM, FragtioN said:

No, my installer wanted me to install SOLARMAN app, and I couldn't get the inverter to adopt in that app. I then managed to get it to work on the Luxpower app instead on my own (he's been too busy to help me as its christmas time...), but have no way of installing a firmware update from there. I don't think my installer knows what he's doing and now that I need the firmware update, I don't have proper access to my own equipment.. ffs. Apparently need to email luxpower. Really??..

Only Luxpower or installer on installer account can upgrade Firmware. So you will need to press on installers button to have this done. Firmware can fix many issues you have. Do this first before looking for a cause to an issue.

59 minutes ago, Quinten said:

Only Luxpower or installer on installer account can upgrade Firmware. So you will need to press on installers button to have this done. Firmware can fix many issues you have. Do this first before looking for a cause to an issue.

Thanks for info! I'm still waiting for my installer to get back to me and will take it from there. What do you mean by "press on installers button"?

Hi All

I am experiencing the same issue as FragtioN. 

My equipment: 

Luxpower sna 5000 wpv inverter

5.12Kw Dyness battery BX5110

The inverter only trips/eps shut down when switching from grid to battery backup - but only when the load is very low like in the early morning hours.  

Warning code 29 will be displayed - saying EPS Voltage high.  

The inverter (EPS) will then shut down and restart after a couple of minutes (7min.) and work perfectly thereafter. 

I do not understand what the problem could be? 

Help anybody?

 

 

 

 

Edited February 12, 20232 yr by MAZ

I'm still experiencing the issue on my Dad's inverter and we're still battling to get hold of the installer. I was hoping to get one of these for myself as I was really impressed by first impression and am looking to upgrade from my Meanwell 24V inverter to a 48V hybrid, but am thinking twice now if it's going to be this difficult to upgrade the firmware

Edited February 2, 20232 yr by FragtioN

2 hours ago, FragtioN said:

I'm still experiencing the issue on my Dad's inverter and we're still battling to get hold of the installer. I was hoping to get one of these for myself as I was really impressed by first impression and am looking to upgrade from my Meanwell 24V inverter to a 48V hybrid, but am thinking twice now if it's going to be this difficult to upgrade the firmware

To be fair that's more an installer issue - they are not getting the upgrade for you. But I hear you with the EPS error

On 2023/02/01 at 6:02 PM, MAZ said:

Hi All

I am experiencing the same issue as FragtioN. 
 

My equipment: 

Luxpower sna 5000 wpv inverter

5.12Kw Dyness battery BX5110

The inverter only trips when switching from grid to battery backup - but only when the load is very low like in the early morning hours.  
 

Warning code 28 will be displayed - saying EPS Voltage high.  
 

The inverter will then restart after a couple of minutes and work perfectly. 
 

I do not understand what the problem could be.
 

Help anybody?

 

 

 

 

Does anyone have any idea how this can be solved?

Getting Warning code 29 “EPS voltage high” when consumption is very little. 
 

Would it help is I adjust the battery charging voltage to 55? 
 

EPS voltage set on 230?

 

thank you
 

 

Wanted to post last night to say my issue was fixed but that took a turn for the worst today.

Had the same issue as someone else reported that it only happens late night/early morning when the grid goes down (loadshedding). I then get a warning 29.

Contacted luxpowertek directly via email as my original sales company ignored me when I asked them to check if my unit was checking in on their account.

Luxpower then upgraded me from Initial firmware cbaa-121714 to current firmware is cBaa-12777E.

This actually fixed my issue for 1 time only, today at 16:08 when I got loadshedding the exact same thing happened again.

I got the Luxpower 5kv LUX-SNA5000WPV with a Volta Stage 1 battery, CAN connected battery version 2 selected as advised by seller of Volta battery pack.

Also you can upgrade your own firmware, on the app logout, right at the bottom is download firmware, using the drop down there should be a file with cBaa-xx77xx which is the one I got loaded. - ***WARNING*** I take no responsibility if you brick your inverter do this at your own accord.

#rant - I'm in the IT field for 15 years, and absolutely hate the fact that I bought a product but I get locked out of admin functions with a end user account.... drives me nuts...

  

2 hours ago, B1G_WH1T3 said:

Had the same issue as someone else reported that it only happens late night/early morning when the grid goes down (loadshedding). I then get a warning 29.
...
This actually fixed my issue for 1 time only, today at 16:08 when I got loadshedding the exact same thing happened again.

Nice info here thanks for sharing.   Ok so you saying the firmware update still *doesn't* solve this warning 29 ? ... Anyone else got feedback on this?  By this point I can't help but begin to wonder if wea are dealing with a manufacturing/hardware defect?? No feedback or solutions have been convincing as yet

2 hours ago, B1G_WH1T3 said:

Also you can upgrade your own firmware, on the app logout, right at the bottom is download firmware, using the drop down there should be a file with cBaa-xx77xx which is the one I got loaded. - ***WARNING*** I take no responsibility if you brick your inverter do this at your own accord.

  Good to know this can be done! ..  But that firmware selection is hela cryptic... how were you able to know with enough confidence which is the right one to choose? I'm not ready to take a chance unless I know a specific firmware is intended for the device and newer than the one already installed?

2 hours ago, B1G_WH1T3 said:

#rant - I'm in the IT field for 15 years, and absolutely hate the fact that I bought a product but I get locked out of admin functions with a end user account.... drives me nuts...

You can say that again!!

Same issue here. Seems quite random though. Had one incident just after installation about a month ago, updated firware and then all good, until the last three days when it's happened 4 out of ten times. Strange that it happens when Eskom goes off. My installer thinks it may be a surge when they switch off...says something about Eskom sending more than the 230v in some areas. I also tried simulating loadshedding by switch off mains to see but switch over happens with no problem.  Hope someone finds the solution soon. Let you know what my installer comes up with. PS! Has anybody contacted luxpower?

I don't know the inverter in question... would be interesting to know whether the error occurs when the grid is being used to power the output and then the inverter has to switch to battery mode, or is the inverter already running off battery, before/when the grid disappears ?