Sol-Ark 15k and JKBMS Issue
- Thread starter Braebyrn
- Start date
Lt.Dan
Solar Wizard
What version of JKBMS do you have? Theres a lot.
The 55.2v shown on the Sol-Ark should be the "Default" or "Fall-Back" values. That way if the BMS stops communicating for some reason, it still has charge parameters to go off of. This is not indicating what the Sol-Ark is CURRENTLY charging to. You will see those values in the Lithium Batt tab.
Now, if the batteries are actually charging to 55.2v, and not 53.6v, then we have a problem.
The 55.2v shown on the Sol-Ark should be the "Default" or "Fall-Back" values. That way if the BMS stops communicating for some reason, it still has charge parameters to go off of. This is not indicating what the Sol-Ark is CURRENTLY charging to. You will see those values in the Lithium Batt tab.
Now, if the batteries are actually charging to 55.2v, and not 53.6v, then we have a problem.
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Shawn Hayes
Learning Everyday
I was not aware JK would communicate fully with SA?
Is this new problem or have the two have been communicating correctly until now?
I asked John Cromer the question at Sol-Ark training last week and he said if the battery page shows values then it is communicating. This is my first experience with SA and JK. I'm always learning something new.
Tonight I disconnected the no.1 battery module and plugged the comms into the 2nd battery module and the correct value showed on the Sol-Ark.
I cleared the settings on the no. 1 JKBMS and reset all the values. Plugged comms back in and it went back up to 55.2v for the float value. So it seems to be in that no.1 bms.
When setting up the bms dip switches, does the first one have to be 0? Or can I start with 1?
I started with 0 but the PC doesn't seem to properly connect to the bms to update fireware.
There is a new update released.
Tonight I disconnected the no.1 battery module and plugged the comms into the 2nd battery module and the correct value showed on the Sol-Ark.
I cleared the settings on the no. 1 JKBMS and reset all the values. Plugged comms back in and it went back up to 55.2v for the float value. So it seems to be in that no.1 bms.
When setting up the bms dip switches, does the first one have to be 0? Or can I start with 1?
I started with 0 but the PC doesn't seem to properly connect to the bms to update fireware.
There is a new update released.
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
I’m curious how do you have these connected to the inverter? 485?
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
How many batteries do you have in parallel?
This is showing 532 amps charging and discharging.
I have the master set to zero. Originally in order to communicate with it, I had to set it to one and then change it back to zero after I did the fireware update. Sounds like I should start with one and go up from there.
RS485 CAN port to CAN port.
4 batteries
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I follow Andy and his positive comments on the latest JK BMS and he is the reason why I purchased them.
I already updated the firmware he said would fix the issues when I received the units. Last night I noticed there is another firmware update. I will be attempting to update it to that.
It also looks like the battery number one is showing 9 full charge and discharges, where as the other 3 are like 15.
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
I see. These are sever rack batteries.
You aren’t trying to communicate with stand alone JK BMS.
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
Understand now.
Was visualizing DIY batteries with JK BMS communicating with inverter..
The new fireware (15.17 firmware) was successfully downloaded to the JKBMS in each battery box. Doing the update was not easy for me to figure out. It wouldn't connect to the BMS. Long story short, I had to uninstall the driver for the USB to RS485 adapter. After that the updates completed.
Hopefully this latest update will help with my issue. I'll keep an eye on it. So far the 15k is displaying the correct setting from the JKBMS.
Hopefully this latest update will help with my issue. I'll keep an eye on it. So far the 15k is displaying the correct setting from the JKBMS.
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