Brian Kloosterman
New Member
I cannot change number 6, it will not let me…it’s defaulting to SNU. Apparently I need to be in bypass mode, which I know nothing about x Also, I don’t even see SUB as an option. Did you mean CUB?
Install and Operation of the SUNGOLD 10KW 48V SPLIT PHASE SOLAR INVERTER
- Thread starter Kenny_
- Start date
Kenny_
Solar Wizard
Oops, sorry yes, CUb.. but you might not even need that ... seems like I did though when I force charged from utility grid.
Brian Kloosterman
New Member
Kenny_
Solar Wizard
Yes, you should, you may have to 'force bypass mode'.... i.e. disconnect PV.... That may be why your are 'locked' in SNU...
Brian Kloosterman
New Member
So disconnect the panels (only positive?), change the setting and reconnect the panels?
Kenny_
Solar Wizard
That should work....
If you disconnect the panels and gen is running it should go into bypass mode.... you should see input from the grid/generator...
Brian Kloosterman
New Member
Will I have to do that every time?
42OhmsPA
What's in a title?
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CaliSunHarvester
Solar Enthusiast
Shouldn't be necessary to disconnect the panels. It may be necessary to request a higher charge current (07, 28)
Side note: Disconnecting panels should be as easy as flipping a breaker. A 2 pole DC breaker.
Kenny_
Solar Wizard
honestly I don't know.... I know the inverter (I think) has the ability to start/trigger a generator but I have no knowledge or experience with that sort of setup.
Brian Kloosterman
New Member
This didn’t work
CaliSunHarvester
Solar Enthusiast
For me, the key trick to charge from grid or charge from generator, was to switch 03 from UPS to APL. Since I made that change, courtesy of this forum, I never had a problem again.
marionw
Solar Addict
The manual has some discussion on the "Dry Contacts" for auto generator start and addresses several Menu Items that affect when the inverter will attempt to start the generator. In my manual it is 6.5
One of your issues may be that unlike most folks you do not have "Grid" power sitting at the grid input connection. The inverter would need to see this input before it can shift/use it. Once the generator is started and assuming low PV and battery I would hope the inverter would start using the generator/grid power. The inverter may also be very picky about the quality of the grid input (from generator) particularly if it is passed to the output. The inverter will attempt to "phase sync" it's output with the grid input and if the grid input (generator) has a THD (Total harmonic distortion) that is way out of spec the inverter may have issues, this is one reason EG4 created the EG4 Chargeinverter.
As far as open or closed loop; Closed loop will provide a more accurate "SOC" ONLY if you have occasionally fully charged the batteries to the point where the BMS balances cells and resets the SOC to 100% otherwise the BMS reported SOC will drift from accurate to inaccurate over time.
One of your issues may be that unlike most folks you do not have "Grid" power sitting at the grid input connection. The inverter would need to see this input before it can shift/use it. Once the generator is started and assuming low PV and battery I would hope the inverter would start using the generator/grid power. The inverter may also be very picky about the quality of the grid input (from generator) particularly if it is passed to the output. The inverter will attempt to "phase sync" it's output with the grid input and if the grid input (generator) has a THD (Total harmonic distortion) that is way out of spec the inverter may have issues, this is one reason EG4 created the EG4 Chargeinverter.
As far as open or closed loop; Closed loop will provide a more accurate "SOC" ONLY if you have occasionally fully charged the batteries to the point where the BMS balances cells and resets the SOC to 100% otherwise the BMS reported SOC will drift from accurate to inaccurate over time.
Brian Kloosterman
New Member
It will not allow me to change this setting either…
42OhmsPA
What's in a title?
Try using my open loop settings in the other thread and see if you can change it.
It's really odd you can't change them.
marionw
Solar Addict
You could also check Menu Item 38 "AC Output voltage". Menu Item 03 may require the "AC Output voltage" to be between 100-105 as indicated in my manual under 5.2 Settings
Brian Kloosterman
New Member
Could you point me to this? I don’t understand what this is yet.
Kenny_
Solar Wizard
Maybe these: https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-973963
Also do you have the Communication Cable from inverter to batteries disconnected/unplugged?
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42OhmsPA
What's in a title?
Here you go.
You would set the inverter to use voltages to control instead of the BMS communications.
It was a thought that may allow you to change more settings. I'm not sure because I've never used communications.
If you decide to try them you'll need to unlpug the BMS com cable, don't panic if you get some faults until all the settings are changed.
Brian Kloosterman
New Member
No, they are connected currently
Kenny_
Solar Wizard
If you are in USER mode you should unplug the comm cable from the inverter. I'm not sure it actually matters, but just to be sure.
I've seen too many weird things with this Sungold equipment and particularly the software...
(That might even be what is keeping you from changing some of the values...dunno...)
Brian Kloosterman
New Member
I unplugged it, but was still unable to change some settings…
Kenny_
Solar Wizard
Ah...alrighty then.
Sorry that wasn't it.
Kenny_
Solar Wizard
This and the similar threads are too long. I've searched around a couple of times to try and find the settings that I posted and for the life of me can't find them... oh well... maybe I'll dig out my notes and retype them in ...
I've searched around a couple of times to try and find the settings that I posted and for the life of me can't find them... oh well... maybe I'll dig out my notes and retype them in ...Similar threads
