42OhmsPA
What's in a title?
That is odd with the dryer.
Are you using comms?
That could be the BMS telling the inverter what to do.
Install and Operation of the SUNGOLD 10KW 48V SPLIT PHASE SOLAR INVERTER
- Thread starter Kenny_
- Start date
Are you using comms?
Brian Kloosterman
New Member
I did this, as I noted in a different post, but the error is still there.
CaliSunHarvester
Solar Enthusiast
marionw
Solar Addict
When BMS communications is working Menu Item #07 (BMS Max Charger Current) is controlled by the Inverter firmware based on the SOC being reported by the master BMS and by one of the following depending on source of charging power:
1: Menu Item #28 Max AC Charger Current, default 60 amps.
2: Max PV Charger Current which I don't believe is menu settable but is modbus register 0xE001 default 200 amps.
The above two items set the max current the inverter will use while charging but based on SOC and in the case of PV as charging source the power available for charging after all loads are handled. You can periodically view Menu Item #07 and you will see it change as SOC changes and/or PV power changes.
The Inverter will revert to the manual setting for Menu Item #07 if BMS communications is disabled or the BMS/Inverter cable is disconnected (causing a BMS fault error which does nothing).
Disconnect the cable and then set/view Menu Item #07. Reconnect the cable and view again. You may have to exit the settings and go back in to see the update.
Battery Charge State, modbus register 0x10B;
0-Not Started,1-Constant Current,2-Constant Voltage,3-Reserved,4-Float Charge,5-Reserved,6-Active Charge,7-Active Charge
The inverter charge state will start at 1-Constant Current and somewhere above 95% SOC will transition to 2-Constant Voltage until the Master BMS reports 100% SOC at which time the inverter will stop charging. The inverter appears to not spend any time in float once 100% SOC is reached.
Menu Items #09 and #11 are set by the Master BMS and in my case when BMS communications is working are set to 57.2 vdc. These will revert back to 56 vdc the I program if I disconnect the BMS-Inverter communications cable.
1: Menu Item #28 Max AC Charger Current, default 60 amps.
2: Max PV Charger Current which I don't believe is menu settable but is modbus register 0xE001 default 200 amps.
The above two items set the max current the inverter will use while charging but based on SOC and in the case of PV as charging source the power available for charging after all loads are handled. You can periodically view Menu Item #07 and you will see it change as SOC changes and/or PV power changes.
The Inverter will revert to the manual setting for Menu Item #07 if BMS communications is disabled or the BMS/Inverter cable is disconnected (causing a BMS fault error which does nothing).
Disconnect the cable and then set/view Menu Item #07. Reconnect the cable and view again. You may have to exit the settings and go back in to see the update.
Battery Charge State, modbus register 0x10B;
0-Not Started,1-Constant Current,2-Constant Voltage,3-Reserved,4-Float Charge,5-Reserved,6-Active Charge,7-Active Charge
The inverter charge state will start at 1-Constant Current and somewhere above 95% SOC will transition to 2-Constant Voltage until the Master BMS reports 100% SOC at which time the inverter will stop charging. The inverter appears to not spend any time in float once 100% SOC is reached.
Menu Items #09 and #11 are set by the Master BMS and in my case when BMS communications is working are set to 57.2 vdc. These will revert back to 56 vdc the I program if I disconnect the BMS-Inverter communications cable.
Kenny_
Solar Wizard
Yep. If coms are on...
Brian Kloosterman
New Member
33! That immediately got rid of the error! What does Pylontech refer to?
CaliSunHarvester
Solar Enthusiast
It's the communications protocol between inverter and batteries (BMS).
Nobody tells you that it has to be PYL but that's what the batteries speak. The inverter supports the other protocols as well.
marionw
Solar Addict
Pylontech is one of several communications protocols (software) that specifies how data (I.e. SOC, Voltage and Alarm data) is packaged and sent over the communication cable between devices. It's like speaking English or Spanish, both devices have to speak the same language.
RS485 and CAN (as well as RS232) are hardware communication protocols that specify how the "communication buss" works; Things like voltage and electrical signaling as well as device addressing are part of this specification. Like speaking English or Spanish over a landline or cell phone or walkie-talkie, both ends have to use the same hardware protocol
Kenny_
Solar Wizard
Yep.... I think I had to get that info here in the forum as well as from Sungold as it is not really documented in the manual etc...
Brian Kloosterman
New Member
Thanks guys. Sungold’s instruction manual leaves quite a bit to be desired…
CaliSunHarvester
Solar Enthusiast
well, as I noted the following day, the BMS had adjusted [7] down to 140A (and I don't know what it's set to right now), but I can see remotely that I hit 6.92kW output an hour ago, of which 6.8kW go to the battery, that's around 6800W/54.5V = 125A charging current -- pretty close.
Weather is overcast today.
CaliSunHarvester
Solar Enthusiast
I won't pull 7kW tomorrow either. It's going to be a very bad day for pv input.
It's 9:20pm and the battery bank is still at 95%!
Expecting 75-80% in the am and 100% by 11am.
Not much I can do. Hot tub is at 104F, PHEV fully charged. Maybe charging my phone.
It's 9:20pm and the battery bank is still at 95%!
Expecting 75-80% in the am and 100% by 11am.
Not much I can do. Hot tub is at 104F, PHEV fully charged. Maybe charging my phone.
Brian Kloosterman
New Member
Kenny, you had previously shared with me what your settings were (see photos). I want to charge my batteries with my generator. What settings do I need to change (and to what) in order to do this? Thanks!
Attachments
Kenny_
Solar Wizard
Hmmmm... I'm lost not sure that those are my settings (you have a link to the post?), also not sure what you are trying to do. Charge the batteries with a generator independent of the Inverter? If you are working independent of the inverter...i.e. just charging the batteries directly with the generator the inverter settings don't matter. If you are supplying power to the inverter from the generator, not sure the setting should be any different...
Brian Kloosterman
New Member
I can’t find those posts, maybe it wasn’t you. But yes, I need to charge my batteries using my generator, via the ac input on my inverter. I’m assuming some of my parameters in the inverter need changed, because I wired the ac input to the generator, but it didn’t start charging the batteries like I expected…
Brian Kloosterman
New Member
I can’t find those posts, maybe it wasn’t you. But yes, I need to charge my batteries using my generator, via the ac put on my inverter. I’m assuming some of my parameters in the inverter need changed, because I wired the ac input to the generator, but it didn’t start charging the batteries like I expected…
Brian Kloosterman
New Member
I’d like to set it up where I can start the generator if the batteries get low. I only temporarily have 10 panels hooked up, using the “solar first” settings, so when the RV is running the a/c and whatnot, there’s not enough juice to power the rv AND charge the batteries too.
Brian Kloosterman
New Member
42OhmsPA
What's in a title?
@Brian Kloosterman I don't have my ASF manual in front of me to see the notes I scratched for gen charging.
Going from memory I had to change output to UTI, change voltage range to APL and reduce grid charging current; I slowly increased it once the generator started charging. I'm probably forgetting something.
I can't help much with the 30 or 32 errors, I don't use comms; I would think you could change the percentages like you would change the voltages in open loop.
Brian Kloosterman
New Member
When you know those settings (and the setting number would be helpful too) for certain, please let me know! Thanks
Kenny_
Solar Wizard
Yeah, thanks @42OhmsPA set 01 to UTI and possibly have to set 06 to CUb ?
If your batteries are giving the 30 and 32 errors, that should do it but yeah otherwise maybe some more finessing with voltage levels/etc.
oh... are you running with communication enabled or USER mode? that might be affecting things too...
Kenny_
Solar Wizard
Just searched back in the thread and found this where I was asking about Force Charging - https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-946494
and https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-946516
and https://diysolarforum.com/threads/i...-split-phase-solar-inverter.71345/post-946516
Brian Kloosterman
New Member
I’m running in USER mode…
Kenny_
Solar Wizard
First step is setting #01 to UTI....that might be all ya need.
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