Just bought a Solis S6 6kw advanced hybrid inverter and a Freedom Won eTower battery. I have a comms cable labeled etower but there's not communication between the inverter and battery. Anyone had this issue or can anyone urgently assist please?

Dip switch 1 must be on for a single battery...

9 hours ago, Steve87 said:

Dip switch 1 must be on for a single battery...

Thanks @Steve87 will try that. Do I use Voltronic Axpert cable or eTower cable, I would presume I use eTower comms cable. 

E tower Cable, because the Tower Cable uses Canbus, the axpert cable uses RS485. The S6 uses Canbus Pins 4 & 5. 

1 hour ago, Moffat said:

Thanks @Steve87 will try that. Do I use Voltronic Axpert cable or eTower cable, I would presume I use eTower comms cable. 

The Solis S6 is CAN compatible use the CAN comms between FW and inverter. 

The eTower comes with two cables for connecting to different types of inverters: 

Victron: For connecting to CAN bus compatible Victron inverters

Type 1: For connecting to CAN bus compatible Type 1 inverters, such as Sunsynk, Growatt, Solis, or Goodwe.

As @Steve87said dip 1 ON others OFF for adress 01.

Edited December 26, 20241 yr by TaliaB

1 hour ago, TaliaB said:

The Solis S6 is CAN compatible use the CAN comms between FW and inverter. 

The eTower comes with two cables for connecting to different types of inverters: 

Victron: For connecting to CAN bus compatible Victron inverters

Type 1: For connecting to CAN bus compatible Type 1 inverters, such as Sunsynk, Growatt, Solis, or Goodwe.

As @Steve87said dip 1 ON others OFF for adress 01.

 

1 hour ago, Steve87 said:

E tower Cable, because the Tower Cable uses Canbus, the axpert cable uses RS485. The S6 uses Canbus Pins 4 & 5. 

We posted at the same time a matter of the fastest fibre connection😀😝

Edited December 26, 20241 yr by TaliaB

Thanks for this @TaliaB. I suppose fibre connection is trying to sync with all 😀😀

Touch wood, will be able to do the necessary today, latest tomorrow. Am wanting the installer to be around so he takes accountability for the other necessary settings changes as well, otherwise, I would've just done it myself.

Hi @TaliaB and @Steve87. I've managed to get my Solis s6 now to talk to battery (Freedom Won eTower). Still some gremlins in the system, but will continue monitoring.

Just another quick question. My system was bought and paid for on (18/12/2024). It was installed on 23/12/2024, yet my warranty begins on 25/11/2024, any idea why there's that variance? 

Many thanks for your help.

Edited December 27, 20241 yr by Moffat
Updated info and question.

That is something you will have to take up with Solis or your supplier. 

3 hours ago, Steve87 said:

That is something you will have to take up with Solis or your supplier. 
 

@Steve87 @TaliaB
Thanks for that advise, am also wondering as per pic attached why when I connect with Wifi I do not get info on the Grid (total downloading, in real-time or historic), but if I connect using Bluetooth, am able to see info regarding the grid “total today import” quantity. Is this something Solis does not have?

Even real-time down isn’t available especially it’s night time and there’s no Pv. As below am charging from the grid I only know the total by adding battery plus backup load, any parasitic losses in the wiring for instance, are unknown.

Edited December 27, 20241 yr by Moffat
Additional info clarification

@Steve87 @TaliaB many thanks for your help, the comms issue has now been sorted, well at least partially. Solis is communicating with the battery (which is good), however I’m now getting occasional BMS error from battery reporting over-voltage when my battery sits, some times at 100% and concerned about how this may impact my battery warranty. I have no way of finding out what’s causing it at this stage (early days). Could charging to 90-95% help or it’s because of the rate of charge & discharge (2.4-3kw) when running an induction cooktop briefly, though I don’t get the error at that time.

Am also faced with information deficiency as per attached pic.  There’s no way Grid info can be at 0w because just after midnight my battery charges to 100% off the grid. I know the 110w is a chest freezer running or sometimes 260w an upright fridge.

Maybe have a look at this Solis S6 rewiev. There is a discussion about the wifi not working on the Solis only the extended bluetooth is functional.

Edited December 29, 20241 yr by TaliaB

12 minutes ago, TaliaB said:

Maybe have a look at this Solis S6 rewiev. There is a discussion about the wifi not working on the Solis only the extended wifi is functional.

Hi @TaliaB I’m going to reread this again. Read it initially before my install and so some of the gremlins but in the whole was convinced it’s still a good Inverter and went for it. Now that I’ve now bought & got my system installed and slipping down the proverbial “rabbit hole”. Got grid power switching off and inverter worked as should be without switching off my loads, though I hadn’t changed anything. My main issues now are:

1. Information not showing via app, as per attached screenshot. My total grid input on dashboard isn’t correct as at midnight my battery charged to 100% from the grid and my Pv values show 0w yet my load will be at either 110w or 250w which loads off my fridges; and

2. Getting a battery overcharge warning on my battery when at 100%. This doesn’t all the time but makes me concerned about it’s effects on my battery warranty.

Solis cloud app is maybe corrupted or maybe you missed a step configuring the app. Below link to Solis support Service page and step by step App configuration.

https://solis-service.solisinverters.com/en/support/solutions/articles/44002504766-s6-hybrid-series-soliscloud-app-local-bluetooth-connection-guide

Edited December 29, 20241 yr by TaliaB

4 hours ago, TaliaB said:

Solis cloud app is maybe corrupted or maybe you missed a step configuring the app. Below link to Solis support Service page and step by step App configuration.

https://solis-service.solisinverters.com/en/support/solutions/articles/44002504766-s6-hybrid-series-soliscloud-app-local-bluetooth-connection-guide

Initially battery cable used was incorrect and this could’ve contributed to certain steps not being done correctly. That said, now that comms has been established and correct cable found, can a restart of the whole process rectify these issues and previous passwords and setup be deleted and I start afresh?

4 hours ago, Moffat said:

Initially battery cable used was incorrect and this could’ve contributed to certain steps not being done correctly. That said, now that comms has been established and correct cable found, can a restart of the whole process rectify these issues and previous passwords and setup be deleted and I start afresh?

Yes i would suggest follow the setup procedure exactly as per link supplied in previous post. Are you in future going to add another e5000 battery as you are limiting the inverter cababiity at the high end of the outut and you do not want to discharge the battery constantly at above 0.5C. Adding another 5kwh of storage will be advantageous for your setup.

2 hours ago, TaliaB said:

Yes i would suggest follow the setup procedure exactly as per link supplied in previous post. Are you in future going to add another e5000 battery as you are limiting the inverter cababiity at the high end of the outut and you do not want to discharge the battery constantly at above 0.5C. Adding another 5kwh of storage will be advantageous for your setup.

Definitely intend to add another battery or funds permitting go up to 400ah, which will be a pack of 4 x 100ah (eTower) batteries to cater for the winter. However will look to add a set of 6-8 x 550w panels on the second Mppt as now only have 12 x 250w panels running off 1-Mppt. Thanks for the info in the interim. I hope I come right shortly, but slow but steady in the meantime. 

Some information regarding remote monitoring via wifi on Solis inverters.

https://solis-service.solisinverters.com/en/support/solutions/articles/44002373796-inverter-remote-control-application

 

Edited December 30, 20241 yr by TaliaB

23 hours ago, TaliaB said:

Some information regarding remote monitoring via wifi on Solis inverters.

https://solis-service.solisinverters.com/en/support/solutions/articles/44002373796-inverter-remote-control-application

 

Great @TaliaB, touch wood i get sorted and I come right. Presently am connecting as “Owner”, not installer… let’s see how things go. Lost grid and am finding something interesting. Pv, Battery & load info is there but no Grid total imported info. 

Edited December 31, 20241 yr by Moffat

12 hours ago, Moffat said:

but no Grid total imported info. 

Is the CT coil connected? Is the CT working. To test the CT run 500w+ on the non essential side and see if the arrow is logically making sense the Grid should turn red with arrow flowing from grid to grid load. There is also a CT self test function. Should the CT polarity be incorrectly wired you can change the polarity via the software on the inverter no need to fiscally swop the wires on the terminal.

4 hours ago, TaliaB said:

Is the CT coil connected? Is the CT working. To test the CT run 500w+ on the non essential side and see if the arrow is logically making sense the Grid should turn red with arrow flowing from grid to grid load. There is also a CT self test function. Should the CT polarity be incorrectly wired you can change the polarity via the software on the inverter no need to fiscally swop the wires on the terminal.

I think I’ll have to revisit the CT. What I also discovered is if I switch off or lose Grid connection Pv and Load values do display as per short video attached. 

 

 

The CT must be used in a Solis regardless of Essentials or non. They use it for the measurement of Current & direction...

Yes the CT is being used, just need to recheck my connections to ensure they are correct so I get correct readings. It's been quite the "rabbit hole" but as I proceed, I can see a light at the end of the tunnel, and NOT a train coming from the other side of that "said tunnel"😀

When you begin to have a system that gives you information to realise and will always want granular info for some things, hence the many questions and need to clarity. Granular in that I would be wanting to ensure there's no parasitic loads from the grid that are unaccounted for the system is performing to it's most efficient and that am also keeping loads in check whilst using a singular battery before I'm able to get an additional battery or two and that panels are also also delivering, more so now that we have overcast days. Eventually if I can be semi-off grid in terms of my loads, that's the goal but still have grid running as backup for winter and redundancy.

One thing am not understanding is the 2-dips in SoC as highlighted, though I did not lose power on my backup load.

Edited December 31, 20241 yr by Moffat

22 hours ago, Steve87 said:

The CT must be used in a Solis regardless of Essentials or non. They use it for the measurement

I would concur, something on the grid side sounds wrong in your setup as any grid usage on my inverter is definately reflected in the local connection in real time.

On a related note, when you say you can't see the grid data via WiFi, do you mean when you are looking at the plant in this non-local connection view?

21 hours ago, Moffat said:

One thing am not understanding is the 2-dips in SoC as highlighted, though I did not lose power on my backup load

This sounds like a BMS comms issue. You can validate by plotting the other BMS parameters logged by the inverter (use the same plot as the PV voltages below) to plot one or more of the parameters in conjunction with the BMS SoC. If they all drop to zero at the same time, that confirms that the comms is intermittently failing. If you are sure the cable is all good, I would contact Solis support for further assistance in this regard (I presume you have selected the FreedomWon LV battery type in the Quick Setup process?).

Also plot the battery voltage for the times when you are getting an BMS overcharge error so we can see what the battery voltage actually is.

On 2024/12/29 at 9:10 AM, Moffat said:

Am also faced with information deficiency as per attached pic.  There’s no way Grid info can be at 0w because just after midnight my battery charges to 100% off the grid. I know the 110w is a chest freezer running or sometimes 260w an upright fridge.

Grid power readings aside (probably CT related), does the PV show zero power intermittently? Are there any errors logged in the app under the alarm tab? Can you share screenshots of your Work Mode and Battery settings?

If you go to the app, select your plant and from the items on the top select Device and your inverter, scroll down to the graph and select parameter. Select the PV voltage parameter of the strings you have connected and share the result for a day when the PV power was reported as zero at times.

It should look like similar to below.

1 hour ago, AlexTZA said:

I would concur, something on the grid side sounds wrong in your setup as any grid usage on my inverter is definately reflected in the local connection in real time.

On a related note, when you say you can't see the grid data via WiFi, do you mean when you are looking at the plant in this non-local connection view?

Moffat: - Not this view.

This sounds like a BMS comms issue. You can validate by plotting the other BMS parameters logged by the inverter (use the same plot as the PV voltages below) to plot one or more of the parameters in conjunction with the BMS SoC. If they all drop to zero at the same time, that confirms that the comms is intermittently failing. If you are sure the cable is all good, I would contact Solis support for further assistance in this regard (I presume you have selected the FreedomWon LV battery type in the Quick Setup process?). Battery is FreedomWon LV battery - yes

Also plot the battery voltage for the times when you are getting an BMS overcharge error so we can see what the battery voltage actually is.

Grid power readings aside (probably CT related), does the PV show zero power intermittently? There's not error messages and it's NOT intermittent. Are there any errors logged in the app under the alarm tab? Can you share screenshots of your Work Mode (Self Consumption) and Battery settings? -I think will have to relook at my comms cable and reconfigure my whole setup again once I confirm the cable is working. All this/these queries are based on me being the "Owner", not "Installer".

If you go to the app, select your plant and from the items on the top select Device and your inverter, scroll down to the graph and select parameter. Select the PV voltage parameter of the strings you have connected and share the result for a day when the PV power was reported as zero at times. When in plant view if my grid is present the PV info disappears. If I grid is present, I have all info except grid import values and my parameters have selected ALL options.

 

It should look like similar to below.