Lighthouse Beacon
Following the Light
Is she purring like a kitten? ?
Install and Operation of the SUNGOLD 10KW 48V SPLIT PHASE SOLAR INVERTER
- Thread starter Kenny_
- Start date
CaliSunHarvester
Solar Enthusiast
Charging with a solid 113W after covering load, that's 0.4A per battery. No risk of high currents in the coming 7days:
Kenny_
Solar Wizard
Going well
42OhmsPA
What's in a title?
Try reducing them... I suspect it's not switching because of those setpoints.
Lighthouse Beacon
Following the Light
CaliSunHarvester
Solar Enthusiast
I think that's what happens at my installation now. Voltage has increased by 0.4V but BMS shows no change in SOC.
*How* do you calibrate this?
42OhmsPA
What's in a title?
In the BMS software there's a calibration section, I haven't used it because it's half english, half chinese and I don't want to mess anything up...
If you have JBDs, scroll down to JBD Tools for the software.
Iirc the overkill app also has a calibration function.
Kenny_
Solar Wizard
As I 'fully' charged my 5 Sungold Rack batteries the last couple of times (under USER) mode and it pushed the voltage/charging Up from where it had been under Closed Loop it seemed to adjust somewhat the SOC to match the new fuller point....at least it seemed that way...not analytics to back it up but....it did seem to adjust to a 'new full'.
CaliSunHarvester
Solar Enthusiast
That sounds a lot better than what I saw on the referenced web page. I will wait for more sunshine first.
Kenny_
Solar Wizard
Seems much smoother operation the last few days....currently down to 55% SOC at 52.3 V (aggregate)
Battery in and out and etc seem to be much more even (certainly than in beginning before first real charge when I trying to run exclusively off of Solar). Much happier with the system this week.
I did have a couple of Solar Assistant 'blackouts/disconnects' for some reason yesterday. I still think it may be due to stray RF getting into the power/usb cables. I probably moved them around a bit while connecting/disconnecting etc the RS485 Comm cables when checking batteries and going in and out of User/Closed Loop modes.
Today is supposed to be mostly cloudy and maybe tomorrow too....may have to 'go to grid' and if so will try another full charge of batteries.
Battery in and out and etc seem to be much more even (certainly than in beginning before first real charge when I trying to run exclusively off of Solar). Much happier with the system this week.
I did have a couple of Solar Assistant 'blackouts/disconnects' for some reason yesterday. I still think it may be due to stray RF getting into the power/usb cables. I probably moved them around a bit while connecting/disconnecting etc the RS485 Comm cables when checking batteries and going in and out of User/Closed Loop modes.
Today is supposed to be mostly cloudy and maybe tomorrow too....may have to 'go to grid' and if so will try another full charge of batteries.
Last edited:
Kenny_
Solar Wizard
It's kinda crazy how the cell voltages can be the same but the SOC so different...
CaliSunHarvester
Solar Enthusiast
42OhmsPA
What's in a title?
Lighthouse Beacon
Following the Light
@Kenny_ so you’ve been in user mode? That means you also disconnected the BMS cable right? So you’re running better without the batt comes and user mode? My inverter today kept pumping voltage in well into 100% SOC until I threw OVPs on both batts and they disconnected, what was weird is the green charging light wasn’t even blinking on the inverter and the inverter display said battery FULL but 13amps kept flowing into batts for a long time,
Kind of weird. The batts disconnected with their built in disconnects but I’m thinking I may get away from comms if you’ve ran better without
Kenny_
Solar Wizard
That's totally weird and uncalled for! LOL! I definitely would suggest giving it a try. That's what I did after dragging my feet a long while.... Just make sure you document your current settings and then give it a try. I was quite surprised how well it went but got a bit excited (I AM an Excitable Boy as Warren says) when the voltage kept climbing and climbing after hitting 100% SOC and then the BL's started going on and off and round and round on the SOKTools/PbmsTools. Heck I even ended up modifying the params in one of the batteries (but it didn't seem to matter either way so may put it back - This requires SOKTools and the password paceadmin).
Cloudy here today and maybe the next few days so not much charging going on but I'm going to let it keep running and see if it will drop down enough to start charging from and switch to grid.
I'm almost convinced your and my UV and OV errors are due to not pushing the batteries/cells to the limit....
I haven't had any of that or any errors for that matter since switching to USER last week. Hope it stays that way!
...of course now that I've said that out loud....
Lighthouse Beacon
Following the Light
So basically I’d write down what my settings are now, that the L16 and BMS set in my inverter value like this, red:
Then I’d set 08 to user,
And go back through settings in inverter and make sure they are same as BMS had defined prior (red).
Then set param 32 to SLA (disable comms)
Then I could tweak my own user settings in the inverter and they’d actually stick.
CaliSunHarvester
Solar Enthusiast
I didn't turn off communications. Only switched to user def battery type and changed some voltages as recommended here. Things have improved slightly since except the weather.
Kenny_
Solar Wizard
Yep and unplug that comm cable. I used @42OhmsPA suggested settings above as a start:
diysolarforum.com
Here's what mine were/are: https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-980132
Install and Operation of the SUNGOLD 10KW 48V SPLIT PHASE SOLAR INVERTER
P.S. for anyone that is just joining us... I've just stuck those panels there temporarily but may do a more permanent ground mount about where there are as that seems to be the optimum place in the back yard and I'm thinking I don't want them on the roof....particularly not while I'm flying...
diysolarforum.com
Here's what mine were/are: https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-980132
Kenny_
Solar Wizard
Cool! Looking forward to further reports!
Lighthouse Beacon
Following the Light
Guys why does the spec sheet for the rack batts and the wall batt state the recommended charge voltage is 54.5. Seem like based on our thread we're all throwing higher voltage at these batts than what the sheets state. I don't remember the sheets saying 54.5? This is off the SG website
CaliSunHarvester
Solar Enthusiast
54.5V cannot even be configured with the SGP charger/ inverter.
The BMS sets it to 56.4 and from there, you can go down in steps of 0.4V, e.g. 55.2V or 54.8V
Kenny_
Solar Wizard
Lighthouse Beacon
Following the Light
Yeah I find that extremely odd. Can't say I am surprised though.. Reminds me what you use to say., "Ready for Prime Time".... sometimes i think maybe not..
CaliSunHarvester
Solar Enthusiast
@Lighthouse Beacon was right. Item 32 has to be turned off ("sla"). We got some sun and I found that the BMS had changed 09,11 back to the original values.
All my other changes did stick though!
So, I turned off communications with setting 32 and also again set 9,11 to 55.2V each.
Last edited:
Similar threads
