New Lux Power LXP-LB-US 12k / GSL-H-12KLV-US with 200A AC Passthrough Current (US Market)

[Luxpower_Gilbert]

Yesterday around 8AM I lost production because the inverter tripped on ISO low. My inverters with LCD display version 7 didn't have the ability to enable or disable ISO, but the above screen shot shows this ability. In my case the ISO setting feature was not triggered when the inverter trip on ISO low. The inverter was off all day, but both inverters restarted this morning and have run all day showing status as normal with production.

Yesterday, I restarted my inverters several times, which cleared the yellow warning light on alarms. Unfortunately, it only last a few minutes and trip again on ISO low. I was pleasantly surprised this morning when both inverters showed normal and were working. However, it would had been nice if I could had disable ISO and had production yesterday. Next week my solar contractor will check for a reason why the inverters trip on ISO low.

Yes, Eddie with LUX has already help. He sent me the screen shot showing the feature enable or disable ISO. Unfortunately, my inverter LCD display doesn't show this feature. Yesterday, I asked Eddie to verify with support the latest LCD display version and the latest firmware build version. However, China is on public holiday until Saturday. I had hope that I might get an idea about the latest versions on DIY solar forum.

Yesterday around 8AM I lost production because the inverter tripped on ISO low. My inverters with LCD display version 7 didn't have the ability to enable or disable ISO, but the above screen shot shows this ability. In my case the ISO setting feature was not triggered when the inverter trip on ISO low. The inverter was off all day, but both inverters restarted this morning and have run all day showing status as normal with production.

Yesterday, I restarted my inverters several times, which cleared the yellow warning light on alarms. Unfortunately, it only last a few minutes and trip again on ISO low. I was pleasantly surprised this morning when both inverters showed normal and were working. However, it would had been nice if I could had disable ISO and had production yesterday. Next week my solar contractor will check for a reason why the inverters trip on ISO low.

Yes, Eddie with LUX has already help. He sent me the screen shot showing the feature enable or disable ISO. Unfortunately, my inverter LCD display doesn't show this feature. Yesterday, I asked Eddie to verify with support the latest LCD display version and the latest firmware build version. However, China is on public holiday until Saturday. I had hope that I might get an idea about the latest versions on DIY solar forum.

Latest firmware should fix the low pv input or trip by low ISO..

 

[Not Aerosmith]

Lates build version is FAA-0D0E..
Old and newer versions of the inverter use the same software, I believe the only difference is they have smaller lcd and breakers…

Latest firmware should fix the low pv input or trip by low ISO..

My build version is FAAB-0D0E, You seem to be right about the only difference between the old and new inverters. Eddie shared that to keep their current UL Listings that they can only make limited modifications to the new inverters. Therefore, you are also right that the old and newer version of these inverter should continue using the same software. Eddie has also shared that they are investigating how to notify the user when the power is on/off, since the system can seamlessly switch between on grid mode and off grid mode . At the moment there is no idea of when this feature will be available.

 

[Dcuste]

I appreciate you replying to my email and including the LCD display update for version 8, also verifying inverter firmware build version 0D0E. Here is a screen shot with several additional settings that my inverters are not showing:
View attachment 153951

All the settings below Lead-acid capacity and above Application Settings are not same on my LCD Display version 7. There are 8 additional setting under model and probably additional settings under the other heading, which I don't have screens shots.

There is also the possibility that the newer 12K inverters have additional features and settings that are not available for the older 12K inverters without internal breakers. It is possible that this screen shot from the newer 12K inverters.

I don't have show those features either. What does enabling the DCI and ISO do?

 

[Not Aerosmith]

I'm running version 8 for the LCD display and 0D0E firmware. I only had version 5 before so can't really say what changes you will see.

According to Luxpower support build version FAAB-0D0E is the latest public release for the inverter firmware as of June 2023. According to GSL, the LCD display version 8 is the latest public release as of June 2023. There are other beta versions being tested.

I don't have show those features either. What does enabling the DCI and ISO do?

The table above is not from GSL nor Luxpower, but another source that I have found helpful when there are abbreviations or unknown meanings:

https://en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SolarGo_User%20Manual-EN.pdf

For general information this manual has been useful. For an actual problem, please seek answers from the actual manufacturer support.

 

[Dcuste]

According to GSL, the LCD display version 8 is the latest public release as of June 2023. There are other beta versions being tested.

View attachment 154203
The table above is not from GSL nor Luxpower, but another source that I have found helpful when there are abbreviations or unknown meanings:

https://en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SolarGo_User%20Manual-EN.pdf

For general information this manual has been useful. For an actual problem, please seek answers from the actual manufacturer support.

Here is a screen shot with several additional settings that my inverters are not showing:

If it not from your inverters, where is the screen shot from? Could it be a different than the 12k LUX inverter?

I do have a "Trip by DCI high" alarm capability. I guess inverters that have DCI alarm can then disable the "DCI Enable" function. Then maybe the inverter would ignore the high DCI voltage. Does that make any sense to you?

I also have a "Trip by ISO low" alarm capability. So maybe if that alarm came in, you would disable the "ISO Enable" function rather than figure out where the problem is. Sounds like a bad idea to me.

 

[Not Aerosmith]

If it not from your inverters, where is the screen shot from? Could it be a different than the 12k LUX inverter?

I do have a "Trip by DCI high" alarm capability. I guess inverters that have DCI alarm can then disable the "DCI Enable" function. Then maybe the inverter would ignore the high DCI voltage. Does that make any sense to you?

I also have a "Trip by ISO low" alarm capability. So maybe if that alarm came in, you would disable the "ISO Enable" function rather than figure out where the problem is. Sounds like a bad idea to me.

Luxpower support confirm that the same inverter firmware is used for both the 12K inverters with or without internal breakers. It is probably not a different 12K LUX inverter, since changes are limited to maintain their UL Listing. The screen shot is probably from an inverter firmware available for support only or a beta version, but this is only a guess.

Disable DCI and ISO defeats their purpose and could become an easy fix without doing any investigation into the alarm condition. You make good points why this capability should not be available to the end users or the installers. Still there are probably situations where DCI or ISO low may become nuisance alarms and need to be adjusted or disable.

If the contractor has done due diligence in thoroughly investigating the problem and determined that these are simply nuisance alarms, then the contractor only recourse is to seek help from support. If support concurs and have no additional testing or solutions, they needs to be able to either adjust the parameters for alarm conditions or to disable the nuisance alarms.

It sounded like you were asking me for my opinion, "if this make sense?" From a lay-person point of view as an end user, this is my best answer.

 

[Eddie_LuxPowerTek]

The screen shot is probably from an inverter firmware available for support only or a beta version, but this is only a guess.

Hi @Not Aerosmith
You can operate that (ISO, GFCI, PVC Arc, etc.) in your installer/distributor APP account. Yes, that work the same for any LXP 12K versions (including EG4 18Kpv). If failed to do so, let me know. Thx

 

[Eddie_LuxPowerTek]

Some installer who uses LXP-12K for their projects randomly collected app data from a few systems they were monitoring and happily shared it with me, as shown in the attached file.
I would like to mention that while these data points can be considered as a rough reference, they are far less accurate than laboratory testing. For precise efficiency measurements, it is advisable to refer to the efficiency data listed on the CEC list, as those values are obtained through lab testing.

 

[Not Aerosmith]

I deleted my earlier post with the request that Luxpower software app have the ability to report the sums of all inverters in a single menu under monitor menu. I found a Luxpower training video on YouTube that shows exactly how to set this up to report the sums of all inverters:

My monitor menu is now showing the sums of both inverters. The Luxpower software is excellent and shows me exactly what I want to see.

The start of the video was on the Luxpower software, which provided me with the information that I wanted. The remaining video is on a Luxpower ECO hybrid inverter that is a different hybrid inverter.

 

[Not Aerosmith]

The monitor menu is now showing production/consumption from both LUX-12K hybrid inverters. The snapshot was taken at 1PM and provides an excellent graphic display of the production/consumption from both inverters. Also below the graphics is a table showing the production/consumption from each inverter and from each of the (6) MPPT strings. I really like the way the Luxpower software display the data, which makes it very easy to see an overview of the system performance and to quickly check that all MPPT strings are working.


Efficiency is (16372+7450)/25248 = 94%

I am very impress and please with the Luxpower software and the 12K hybrid inverters.

 

[Not Aerosmith]

Eddie told me that if I click on the values under Solar Yield, Battery Charge and Feed-in Energy that I get additional information. Grid will toggle between import and export, Battery will toggle between Discharge and Charge, and Solar Yield provides additional information.

I had no idea that the software included this feature.

I really like the Luxpower software.

 

[Not Aerosmith]

‘Operation failed, error code: 3 means that some inverter changes can only be made when the inverter is in standby mode. For me it was very frustrating not knowing why I was getting error code 3 when I tried to change some settings, so I did an internet search for the answer. Luxpower has published online the answers to 6 FAQ. I have shared the document for others struggling with some inverter settings or definitions.

 

[Not Aerosmith]

Standby Mode will not fix error code 3 on changing On-Grid Cut-Off SOC above 90%.

I was trying to change on-grid cut off, because my system was charging to 100% with solar and then when consumption > production, it would discharge to 90%. I wanted my batteries to always be 100% as an UPS for power outages.

I discovered that the fix is charge first set SOC to 100%.

Now when consumption > production, my batteries are no longer discharging to 90%.

It appears that the Luxpower software can do whatever you want. However, for a lay-person like me it is sometime difficult to figure out, but so far not impossible. If impossible, there is always support.

 

[Luxpower_Gilbert]

Standby Mode will not fix error code 3 on changing On-Grid Cut-Off SOC above 90%.
View attachment 155317
I was trying to change on-grid cut off, because my system was charging to 100% with solar and then when consumption > production, it would discharge to 90%. I wanted my batteries to always be 100% as an UPS for power outages.

I discovered that the fix is charge first set SOC to 100%.
View attachment 155318
Now when consumption > production, my batteries are no longer discharging to 90%.
View attachment 155319
It appears that the Luxpower software can do whatever you want. However, for a lay-person like me it is sometime difficult to figure out, but so far not impossible. If impossible, there is always support.

are you going to use your battery for back up only?
charge first (pv) setting is use when you don't want to discharge you battery.
but if you only want to battery to use as a backup only then set On Grid Cut Off SOC(%) to 100%

 

[Not Aerosmith]

but if you only want to battery to use as a backup only then set On Grid Cut Off SOC(%) to 100%

How??? Your post makes sense, but I have tried repeatedly to set On-Grid Cut Off SOC to 100% or even 95%. I have tried setting it with inverter on "STANDBY MODE", so far I have been unable to set On-Grid Cut Off SOC >90%. The solar will charge the batteries to SOC=100% or close, but when consumption > production, the batteries will discharge to 90% when on-grid. Luxpower only provides an error code 3 for on-grid SOC > 90%. If you think that you have managed to set it at 100%, then hit "READ" and it is will change SOC to 90%.

I really hope that I am wrong and made some stupid lay-person mistake. Maybe error code 3 means that the inverters need to be in standby mode plus the change must be made on the inverter LCD screen not using remote software settings. I have spent hours trying to get the inverters setup the way that I want.

My understanding is that "charge first" use solar energy first to charge batteries till fully charge with the grid providing the power for consumption. Afterward the batteries are fully charge, the solar energy is then used for consumption and/or export to grid. What important is that with "charge first" that it didn't discharge the batteries to SOC=90% when the consumption > production. Normally, when there is no power outage, the batteries should have only discharge overnight to about 97%, so in the morning batteries will be SOC=100% in < hour.

However, I will admit that "my understanding" is limited. I need help.

 

[Luxpower_Gilbert]

How??? Your post makes sense, but I have tried repeatedly to set On-Grid Cut Off SOC to 100% or even 95%. I have tried setting it with inverter on "STANDBY MODE", so far I have been unable to set On-Grid Cut Off SOC >90%. The solar will charge the batteries to SOC=100% or close, but when consumption > production, the batteries will discharge to 90% when on-grid. Luxpower only provides an error code 3 for on-grid SOC > 90%. If you think that you have managed to set it at 100%, then hit "READ" and it is will change SOC to 90%.

I really hope that I am wrong and made some stupid lay-person mistake. Maybe error code 3 means that the inverters need to be in standby mode plus the change must be made on the inverter LCD screen not using remote software settings. I have spent hours trying to get the inverters setup the way that I want.

My understanding is that "charge first" use solar energy first to charge batteries till fully charge with the grid providing the power for consumption. Afterward the batteries are fully charge, the solar energy is then used for consumption and/or export to grid. What important is that with "charge first" that it didn't discharge the batteries to SOC=90% when the consumption > production. Normally, when there is no power outage, the batteries should have only discharge overnight to about 97%, so in the morning batteries will be SOC=100% in < hour.

However, I will admit that "my understanding" is limited. I need help.

as of now it can be set 0-90%, lux been updating the web and app recently. i think it would be better if you cycle your battery from 100% to 80-90%, its better for the battery than to always stay at 100%.. if you still want to kept it at 100% use charge first and set it to 100% and use the timer with 5 mins gap.
Charge First Start Time 1: 08:00
Charge First End Time 1: 07:55
or try set
Start Discharge P_import(W) higher than your regular load kw.

 

[Not Aerosmith]

as of now it can be set 0-90%, lux been updating the web and app recently. i think it would be better if you cycle your battery from 100% to 80-90%, its better for the battery than to always stay at 100%.. if you still want to kept it at 100% use charge first and set it to 100% and use the time 5 mins gap.
Charge First Start Time 1: 08:00
Charge First End Time 1: 07:55
or try set
Start Discharge P_import(W) higher than your regular load kw.

Just read your email and checked my settings at 9:30PM. Unless we have a very bright full moon or the street light next to my house is very bright, my system may not be working properly:

I do have 28.6 KW of solar panels, but still not expecting them to work at night even at 1.58% or 452 w. Another mystery that I need to solve.

My solar panels usually start producing about 6:15AM and by 7:55AM on a good day may be enough to power the house. Trying to follow your advice, I would think in my case that possibly to discharge the system to 90% that:
Charge First Start Time 1: 06:00
Charge First End Time 1: 05:30
My family normally exercise during this 30 minutes, so I will be able to check the system status to see the depth of discharge.. Any schedule outages for maintenance are normally schedule between 9AM to 4PM. Our bad weather or heavy rains normally occur in the afternoon and sometimes can cause a power outage. I should have full power for UPS when I am most likely to need it. Usually any outages at other times are normally brief or < hour.

I appreciate your help and advice.

 

[Not Aerosmith]

At least one mystery is solved. The software was left running from earlier and the moving arrows were still moving, so I assumed it was working. I just needed to login and the system is performing as expected:

 

[Not Aerosmith]

I was curious how much the batteries would discharge naturally by themselves. This morning I checked the system at 6AM and the batteries had discharged overnight from SOC=100% to SOC=93%.

I manually turned off "charge first" and at 6:15AM, the system was using solar and batteries for consumption with the grid:

At 6:35AM the batteries were SOC=90% and shutoff with a;; power from solar and grid. In 20 minutes the batteries had discharge from SOC=93% to SOC=90%. The batteries should now stay off until the solar production > consumption with "charge first" off.

At 7AM the solar production > consumption and just started charging the batteries:

At 7:15AM I enable "charge first" now the solar is charging the batteries with consumption from the grid. I went ahead and set charge first to start at 6AM and stop at 5:30AM.

The batteries were SOC=100% at 8:05AM. Today I did it manually to have a better understanding how the system would respond with and without "charge first". Everything work as predicted by GRV0423.

Tomorrow everything should happen automatically, since the inverters are programmed for "charge first" to turn off at 5:30AM and turn on at 6AM. I really appreciate the help. I should have batteries at fully charge for UPS when I am most likely to have an extended power outage.

I believe with GRV0423 help that the Luxpower software is now properly controlling the system as I wanted. Thank you.

 

[Not Aerosmith]

AC Charge is disable, which means that batteries can only charge when there is solar.

I wanted to setup AC Charge, but unable to set a lower limit. I get an error code 3 when I set Start AC Charge SOC=90% or SOC=50% and even the default value SOC=0%. I put the inverter in Standby mode, set Battery Charge Control to SOC, and set AC charge according to SOC/volts. I tried doing it with AC Charge enable and disable.

All the setting of AC Charge seems to work except Start AC Charge SOC and AC charge according to SOC/volts. AC Charge gives you an error 3 code regardless of the value enter. AC charge according to SOC/volts indicates successful, but do another read and it reverts back to the default according to time.

Has anyone been able to get AC Charge to work???

 

[Luxpower_Gilbert]

AC Charge is disable, which means that batteries can only charge when there is solar.

I wanted to setup AC Charge, but unable to set a lower limit. I get an error code 3 when I set Start AC Charge SOC=90% or SOC=50% and even the default value SOC=0%. I put the inverter in Standby mode, set Battery Charge Control to SOC, and set AC charge according to SOC/volts. I tried doing it with AC Charge enable and disable.

All the setting of AC Charge seems to work except Start AC Charge SOC and AC charge according to SOC/volts. AC Charge gives you an error 3 code regardless of the value enter. AC charge according to SOC/volts indicates successful, but do another read and it reverts back to the default according to time.

Has anyone been able to get AC Charge to work???

tell me what setting you want to use, how you want to use it and i will help you

 

[Not Aerosmith]

I want to set Start AC Charge SOC=80% and Stop AC Charge SOC=100%.

If the solar panels were unable to charge the batteries, I would need the grid to charge the batteries.

 

[Luxpower_Gilbert]

I want to set Start AC Charge SOC=80% and Stop AC Charge SOC=100%.

If the solar panels were unable to charge the batteries, I would need the grid to charge the batteries.

You set it like that then set the time you want to ac charge the battery.. I assumed your using charge first pv timers to prevent the battery discharging…

 

[Not Aerosmith]

To set time I need to use Set AC Charge "according to time", because "according to SOC/volts" grays out time and not let me enter a time. I am still unable to set any value for "Start AC SOC" without an error 3 even with time set. The time was set to avoid any conflict between Charge First and AC Charge. It really seems to me that Start AC Charge SOC=80% and Stop AC Charge=100% should work.

I remembered that on-grid cutoff demanded SOC=90% or less, so I tried setting Stop AC Charge SOC=90%. I still was unable to set Start AC Charge SOC=80% without an error 3 code. No idea why this feature is not working for me.

 

[Luxpower_Gilbert]

try set it in the inverter not from the web. make sure you put all zero if your not using the timer..