Kenny_
Solar Wizard
Yes this!
Install and Operation of the SUNGOLD 10KW 48V SPLIT PHASE SOLAR INVERTER
- Thread starter Kenny_
- Start date
Wessss77
New Member
Ya it was just that it hadn't done any charging because I never got the voltage level on the batteries to invoke the charge... Finally have the settings issue resolved for now... The spikes are the hot water heater kicking on and the blender while making smoothies...
42OhmsPA
What's in a title?
Don't be afraid to push it. Big storm came through, and it's getting dark again quick....Ya it was just that it hadn't done any charging because I never got the voltage level on the batteries to invoke the charge... Finally have the settings issue resolved for now... The spikes are the hot water heater kicking on and the blender while making smoothies...
CaliSunHarvester
Solar Enthusiast
Kenny_
Solar Wizard
What? No Mr. Coffee Spikes? LOL!Ya it was just that it hadn't done any charging because I never got the voltage level on the batteries to invoke the charge... Finally have the settings issue resolved for now... The spikes are the hot water heater kicking on and the blender while making smoothies...
Glad you got the settings thing worked out!
Wessss77
New Member
Ok officially impressed with the chargers on the units...I currently have 9315 watts out of my 23 405 watt panels and today around noon I was generating 9061 watts to load and battery... Only 300 watt loss to me is impressive.
Kenny_
Solar Wizard
and on those cool days you'll get even more!
Enzo.R
New Member
Do you remember this?
I just went open loop with my battery as always suggested by @42OhmsPA. I plugged in the values the manufacturer sent me, but I have one question:
37 suppose to be lower than 9 and 11. But isn't 37 "full battery"?
If I follow the manufacturer numbers, 37=58.4V, 09/11=55.2V
Does it sound right?
37 Battery full recharge voltage point default 52v
Inverter stops charging when the battery is full.
Inverter resumes charging when the battery voltage
below this value. Setting range: 44V~54V
Has to get down below this to start recharging again.
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Enzo.R
New Member
I am missing something here then. On an open loop set up, how does the inverter know when the battery is full?
Is the battery's BMS that cut off the charging current coming from the inverter?
Is the battery's BMS that cut off the charging current coming from the inverter?
42OhmsPA
What's in a title?
That would be the value you program into setting 9 and dependent on your battery chemistry and cell series string.
For example a 16S LiFePO4 pack could be set at 55.2V for a safe value.
In my opinion the preset full voltages in most BMS are to aggressive, they are charging the cells to the top of the knee which has a minute amount of additional capacity but plenty of additional stress.
No, the BMS should always be your last line of defense.
In my example above I charge to 55.2V, 3.45V/cell, my BMS is set to protect at 58V, 3.625V/cell.
Wessss77
New Member
Very good description... On open loop the inverter just reads overall pack voltage... It doesn't take into account voltage sag on the bottom or run away at the top... So it's good to use safe values for top and bottom... The BMS should keep the runaway from happening both high and low. Active balancing to keep it tight.
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CaliSunHarvester
Solar Enthusiast
Coming back to @Kenny_ 's old thread. As I indicated in 2 other threads, I doubled the panels on my SGP 10kW AIO from 6.2kW pv input to 13.3kW. However, the increase in power output has been less than expected. It's never going above 6.4kW pv input, meaning the additional array (nominally 7.1kW) adds just 1-2kW.
I just had a light bulb go off (not from overvoltage -- it was in a good way).
The AIO's setting [07] ("Battery charging current") defaults to 60A and I had set it long ago to 80A (I think while charging from the generator? I don't recall).
And it turns out that 80A*56V = 4.5kW -- which is probably the most I have indeed seen go into the batteries.
I changed this number [07] now to 120A. My battery bank consists of five 100A batteries, meaning each would get 24A.
So tomorrow, I should see charging peak power at 120A * 56V = 6.7kW?
24A is 0.24C -- which is not too aggressive, or?
[07] = 150A would be 0.3C charging, which I have seen called a recommended upper limit.
It's probably better for the inverter to keep the limit as low as possible while still being able to top off the batteries.
I simply want to see how much that second array really can produce.
I guess another way to test would be to shut off the incoming breaker on array 1.
I just had a light bulb go off (not from overvoltage -- it was in a good way).
The AIO's setting [07] ("Battery charging current") defaults to 60A and I had set it long ago to 80A (I think while charging from the generator? I don't recall).
And it turns out that 80A*56V = 4.5kW -- which is probably the most I have indeed seen go into the batteries.
I changed this number [07] now to 120A. My battery bank consists of five 100A batteries, meaning each would get 24A.
So tomorrow, I should see charging peak power at 120A * 56V = 6.7kW?
24A is 0.24C -- which is not too aggressive, or?
[07] = 150A would be 0.3C charging, which I have seen called a recommended upper limit.
It's probably better for the inverter to keep the limit as low as possible while still being able to top off the batteries.
I simply want to see how much that second array really can produce.
I guess another way to test would be to shut off the incoming breaker on array 1.
42OhmsPA
What's in a title?
You should be fine to set it to 200A, that's still under 0.5C for your batteries.
Don't forget to check setting 39 since you are using comms as well as setting 38(I think that's max solar charging current).
CaliSunHarvester
Solar Enthusiast
umm... per (downloaded, not hard copy) manual [39] does not exist and [38] = 120V ("AC Output Voltage")
Then I walked up to the unit and under [39] it says [LC BMS], and there are 2 other options, I think [LC INV] was one of them.
My downloaded PDF is version 3.0 per document footer.
Edit:
OK, I have set it to 200A. My optimistic prediction is peak production of 9kW at 1pm which would be over 150A.
Well, maybe not. With faster charging, the batteries may be topped off before noon now.
Edit 2:
Found this about settings 38 and 39. Which matches what you said, but I found it in the manual for the 5048.
The new manual for the parallel version of the 10kW model also has these settings.
I left it at the default so far.
And here the manual as downloaded 11/28/2023:
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Good luck today, may the sun shine bright!
42OhmsPA
What's in a title?
Sorry for confusing you, I'm confusing myself bouncing back and forth between ASF and ASP manuals. SRNE and the resellers need to do better.
Hope you see lots of sun and charging power today.
Brian Kloosterman
New Member
Hello all, I just was following along on this thread after finding it on Google, because I’m having some similar issues. I have the 10,000 W hybrid inverter from Sungold, and 6 of their 100 amp power 48 V batteries. I am seeing error 58 (BMS Communication Fault in the manual) on my Inverter also. I don’t believe the error was showing when I first hooked everything up. I have the supplied communication cord plugged into the inverter, with the other end going into the RS485A port on battery number one (referred to as #1 because of the position of the DIP switches). The cord came with labeled ends, one saying INV, the other end saying BAT, so it seems pretty straightforward. I switched the ends thinking they might have been mislabeled, but nothing happened. (Or I didn’t wait long enough or restart or whatever else.) My batteries are all connected to each other with the supplied cables, with the ends in the RS485A/B ports. Any help would be appreciated. I have a couple more questions I could use answered, but let’s start here. Thanks.
Attachments
CaliSunHarvester
Solar Enthusiast
You came to the right place
There's something about which port to use.
The master cable has to go in port A and the subsequent daisy chains between B and C.
I am trying to locate a photo. It's in this thread.
There's something about which port to use.
The master cable has to go in port A and the subsequent daisy chains between B and C.
I am trying to locate a photo. It's in this thread.
Nice set up!
CaliSunHarvester
Solar Enthusiast
Here, look at this and subsequent discussion.
https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-978053
Also, did you select "pylontech" for the protocol?
I have 32=485 and 33=PYL
https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-978053
Also, did you select "pylontech" for the protocol?
I have 32=485 and 33=PYL
Wessss77
New Member
For some reason I get an error setting to 200a and so I'm set at 180a. This is what really pushed my solar charging that day to over 9k. Word things is when I run the dryer it takes almost 1500w of the 6000w from the batteries. I can watch as the system throttles back the amps from the panels.
Right now my batteries are topped off before I can harvest more than 6k of solar when the sun comes up...
CaliSunHarvester
Solar Enthusiast
I set mine ([07]) last night to 180A and found this morning it was changed to 140A and now it's still 140A but battery has been full since noon.
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