It's the first scenario. 

19 hours ago, Pietie123 said:

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 have been in contact with Timothy from Luxpower South Africa support. 
The problem stills occur randomly. 

Warning 29. “EPS Voltage high”

Still there is no solution. 

https://luxpowertek.com/contact-usLuxpower local support contact details can be found below: 

https://luxpowertek.com/contact-us
 

Lets hope someone find a solution soon  

 

Has Anyone found a solution to the "EPS voltage high" as yet?  

Firmware updates do not resolve the issue.  

 

So let me provide an update, the firmware I got upgraded to cBaa-12777E seems to somewhat remove the issue.

Since they upgraded me I've only had the warning 29 2 times, all at random intervals 1 during the day at 4pm other one again at midnight.

I've emailed the company I bought it from and luxpowertek official international support and well they recommended the firmware upgrade which they executed, but nothing really after that.

International support did how ever say that if it triggers the event again they will look into creating a custom firmware, which I really hope resolves the issue.

South Africa support has not even responded once, rather disappointed since I would expect them to know what is going on in our country and would look at users complaining about this issue.

But that's about the feedback I got, will update again when something happens

This problem is not unique to the SNA or even just Luxpower.
I have installed quite a few ranging from the SNA to the 12Kw.

This is happening all over and it seems like a few Deye installs are also experiencing something similar. (much less frequently)

I was also under the impression it has something to do with the grid connection, but it can happen anytime, even under loadshedding.

I hope they get a fix for it soon or I might just be changing install brands.

 

No feedback from the manufacturer/distributors? Anything from Timothy yet perhaps, @MAZ? It seems awfully strange that we still don't know what's going on here.

My issue is resolved for now: 

Had the same issue and was advised as follows:-

1. Ensure you have the latest firmware

2. adjust the charge voltage to 54,6

3. Set ac charge according to SOC 90-100% and not time.

 

I was told, by Luxpowertek:

“EPS voltage high issue during fail to limit output when grid fail, and grid frequency changed a lot”

Hope this helps. Seems to have worked in my case

 

EPS high Voltage is mostly due to a high charge voltage as I was told on another group

 

 

 

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error 29

Edited May 3, 20233 yr by MAZ
Typo

I upgraded the Firmware  on the 9th Feb.. 

It randomly triggers, off for 5 minutes . It only seems  to trigger during the day and it is exactly as load shedding starts

Luxpower SNA5 with Pylon tech US3000C battery 

Edited March 2, 20233 yr by DaveAWalker

Ok so I contacted luxpower who updated my firmware again and changed battery voltage setting. All good since then...

Maybe fixed

 

 

Morning all

So update, I'm rather stubborn so took the fighting force to luxpower. Finally got it sorted after back and forth arguing etc.

They rolled out Firmware  cBaa-12777F on 27 Feb 07:00 AM, and since then I have not had any issue with the EPS error.

 

Also not sure what the rules are around reviewing companies? aka where I bought the inverter and support etc around it. if this community feels like name and shame is appropriate I'm game to give out my experience dealing with them.

Edited March 10, 20233 yr by B1G_WH1T3
fix spelling mistake

On 2023/02/19 at 10:34 AM, Firoz said:

My issue is resolved for now: 

Had the same issue and was advised as follows:-

1. Ensure you have the latest firmware

2. adjust the charge voltage to 54,6

3. Set ac charge according to SOC 90-100% and not time.

 

I was told, by Luxpowertek:

“EPS voltage high issue during fail to limit output when grid fail, and grid frequency changed a lot”

Hope this helps. Seems to have worked in my case

 

If you connecting your battery via BMS comms then changing any of the charging voltages etc is redundant, the BMS will handle the voltages how it wants to charge the battery.

as for point 3 - it should not matter what method you use to enable AC charge, time/ soc / manual etc anyone of them should yield the same results. Mine is set to time aka 00:00 - 23:59

4 minutes ago, B1G_WH1T3 said:

Morning all

So update, I'm rather suborn so took the fighting force to luxpower. Finally got it sorted after back and forth arguing etc.

They rolled out Firmware  cBaa-12777F on 27 Feb 07:00 AM, and since then I have not had any issue with the EPS error.

 

Also not sure what the rules are around reviewing companies? aka where I bought the inverter and support etc around it. if this community feels like name and shame is appropriate I'm game to give out my experience dealing with them.

Just to provide more info on my settings etc, I see few people got different advise to which settings should be used.

Well this is far from ideal. I have exactly the same issue with the Luxpower Inverter going between EPS Overload and Low Voltage Battery. The code I am getting is 26.

 

Any help would be great.

On 2023/02/15 at 10:59 AM, B1G_WH1T3 said:

So let me provide an update, the firmware I got upgraded to cBaa-12777E seems to somewhat remove the issue.

Since they upgraded me I've only had the warning 29 2 times, all at random intervals 1 during the day at 4pm other one again at midnight.

I've emailed the company I bought it from and luxpowertek official international support and well they recommended the firmware upgrade which they executed, but nothing really after that.

International support did how ever say that if it triggers the event again they will look into creating a custom firmware, which I really hope resolves the issue.

South Africa support has not even responded once, rather disappointed since I would expect them to know what is going on in our country and would look at users complaining about this issue.

But that's about the feedback I got, will update again when something happens

I agree NO  RSA support. Also have same issue with EPS errors 13/28/29 .it occurred after we upgraded to the latest cBaa-12777F version

10 minutes ago, flamegrilled said:

I agree NO  RSA support. Also have same issue with EPS errors 13/28/29 .it occurred after we upgraded to the latest cBaa-12777F version

The errors occur only during load shedding periods too

Hi Guys

I hope I can assist with my 5 cents worth of input (Sorry the other 5 cents was spent on more solar panels).

My Setup: 

- Luxpower SNA 5000WPV

- 2 x Pylontech US3000C

- 8 x 550watt TW Panels.

I have been receiving Error Code 28 - EPS Load High whenever there is loadshedding during the daytime or when solar power is available but no AC / Grid Power. When the load exceeds the PV power generated then the EPS trips. This can be at high or even very small loads such as 300 watt. I then have to reset the inverter and it may even trip 3 to 4 times during loadshedding. It is very frustrating, because when I then turn off the PV switches the batteries will take over and I can draw 3.5kw easily from the two batteries with peak instantaneous loads of up to 7kw.

I read all the blogs, watched countless hours of Luxpower training, consulted all the manuals and even had 3 different installers look at the settings. 

This is what I have done to date and it seems the issues have disappeared... let’s hope!

• I have asked one of the Distributors for my own Installer profile as the End User profile has limited options when using a PC and browser. I understand Lux power is also able to assist with this if you have issues contacting your installer.
• With my own installer profile, I did an update of the Firmware (Please make sure you know how to do this as doing it wrong you can brick your inverter).
• I then tested and found 2 scenarios that would make the EPS trip during loadshedding. When there is AC power then everything runs fine. PV takes the load and charges the batteries and AC will take over when PV power is not sufficient. My batteries are only used for backup during loadshedding. So, I did the following:

1. There is a setting under APPLICATION SETTINGS called PV GRID OFF. This was enabled and overlooked by all 3 installers. I understand this is used when you have a setup where you have no batteries installed. I disabled it and most of the EPS trips went away. As if the inverter was not allowed to use batteries when it was enabled. 
2. The other issue was to do with the AC Charge timings and I could not find any timings where the EPS does not trip. I then changed it to Charge from AC - According to SOC, which is the recommended setting for Lithium Batteries. 
3. My inverter EPS voltage output was also set at 240V and I changed it to 230V as the manual indicates it should be.

Since then, I have not had any issues except for the AC Charge only starting when the batteries reach a certain SOC (50% in my case). So, at night when Eskom is on then I would do a manual quick charge to keep the batteries full and ready for the next loadshedding period. My batteries seldomly go below 70% btw as I do not use that much power at night. I will still play around with the % for when the AC starts charging (maybe 90%) and see if the batteries stay full and that it does not interfere with the issues mentioned above.

Hope you guys get yours sorted. 

Hi guys. What should the eps voltage be on a luxpower 5kva inverter

3 hours ago, Juan Lamprecht said:

Hi guys. What should the eps voltage be on a luxpower 5kva inverter

230V would be my suggestion. 

On 2023/02/15 at 9:48 AM, Firoz said:

Has Anyone found a solution to the "EPS voltage high" as yet?  

Firmware updates do not resolve the issue.  

 

I had the error 29 solve it with my technician of South Africa who installed our system... we have two inverters so if you switch off the one inverter the error moved to the othe r inverter, so he suggested to check my LAN cables even though it is new....so when I inserted a new LAN cable from the one inverter to the other one our problem has been solved....so maybe just check all your LAN cables if the fault is still there after a firmware update and so on....good luck

hi