On 2023/07/17 at 5:19 AM, Mikhail Hathey said:

@WestCoastUPS Could you perhaps advise on best settings?

The setting I used was matched to the maximum output of the Pylontech UP5000 battery, 50A.  U think it is maybe tripping due to a conflict arising when the inverter can take 100A from a battery that can only give you 50A. I've done a few with no problems.

What battery are you using?

17 hours ago, WestCoastUPS said:

The setting I used was matched to the maximum output of the Pylontech UP5000 battery, 50A.  U think it is maybe tripping due to a conflict arising when the inverter can take 100A from a battery that can only give you 50A. I've done a few with no problems.

What battery are you using?

I'm using a Shoto 5.12kWh Lithium-ion Battery

On 2023/07/19 at 7:50 AM, Mikhail Hathey said:

I'm using a Shoto 5.12kWh Lithium-ion Battery

Shoto battery has recommended Discharge of 50A but is capable of maximum 100A. Default setting Id on SNA5000 is 110A. Set the discharge current to 50A and monitor it. Let us know the result.

Good day i have a  Luxpowe 5kw hybrid intelligent inverter with with a 5.12kw shoto lithuim battery and 6x 545w mono solar panels installed at my home. It keeps on tripping during daytime hours and this does not happen at night time. The installer has removed the battery for some reason and took it to his shop and brought it back but the issue was still not fixed. The installer came last week again he changed the dongle and he said that he resetted the logger and re did it and he adjusted one of the settings. The issue is still not fixed. Loadshedding started at 10 and in 1 hours time it tripped about 10 times. who can assist or give recommendations on my issue? 

On 2022/11/27 at 8:11 AM, Tommie6.5 said:

I have a luxpower sna5000 it worked fine in the beginning now during loadshedding after about an hour the eps goes off and back on again about every 5 minutes and it seems to be getting worse. I have one hubble am2 battery connected no panels yet.

@Tommie6.5 I am experiencing exactly the same problem. This setup has worked well since installation however now it trips with battery over 60%. I have tried to remove the entire load but it does not work either. 

On 2023/07/21 at 1:28 PM, WestCoastUPS said:

Shoto battery has recommended Discharge of 50A but is capable of maximum 100A. Default setting Id on SNA5000 is 110A. Set the discharge current to 50A and monitor it. Let us know the result.

So just to confirm I change the Discharge Current Limit(Adc) from 110 to 50. It hasn't tripped in a while but if it does I will try this setting and let you know.

Good day this thread is old however I am struggling to get info re the eps and ups difference when would one set the inverter to eps and vice versa and what's the pros and cons and the actual difference 

 

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. 

I went through almost exactly the same efforts/process as you but not changing from 240 to 230V.  I did it this morning and hoping for the best ...

Since my trips mostly happened when the batteries was at 100% SOC I tried to set the max charge voltage to 52.3V to prevent the batteries to get to 100% but limit to 99%.  Maybe its my imagination but I think that did help to limit the frequency of trips.

Hopefully the running on 230V will do the trick and no more trips ... 🙂

Edit:  Can you please also make a noise about this at Lux-Power tech support.  Although this a an effective work around, it can not be considered a permanent solution.  The more of us complaining the better chance of getting it rectified, maybe with a firmware update or maybe with a product recall to fix it.

Edited September 21, 20232 yr by Theog17