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Solax sk-su3000e - Pylontech us2000c Battery BMS and CT Clamps

Posted: Sat Jan 20, 2024 11:54 am
by JC_UK
Hi all,

Making progress with swapping out my Sofar me3000p inverter for the Solax sk-su3000e
I have now found the on/off switch :lol:
I can monitor the inverter using the https://www.solax-portal.com/ portal - are there better ways of monitoring the inverter from an iphone?

I have sorted out the CT clamp so now getting a reading from the daytime live meter tails, but the power/w reading on the Solax control panel and solax-portal seems very low........ currently indicating 30w for the whole house....... seems a bit low....

Now want to the get batteries (PylonTech us2000c lead battery) working...
The inverter is indicating a BMS error/disconnect, but the inverter and solax-portal showing the battery details - voltage, capacity etc.

I have connected the Solax inverter to the CAN port on the US2000C lead battery, and the BMS port on the Inverter.....
Using the Solax comms lead with inverter and battery labels.....

Does anyone have the uc2000c batteries working with a Solax sk-su3000e inverter - old inverter - new battery......
Current can't get battery charge/discharge working, but I think this is related to the BMS error.......
So drawing from the Grid and batteries have ~40% capacity and no battery discharge.

I don't have any PV connected to the Solax inverter (yet) but we still have the SMA connected PV.
Aim is to get the PylonTech battery stack to do force charging overnight (low rate) and then usage over the day (discharge/charge), and then add further PV generation through the Solax inverter over the next few months.

Any ideas on the above please?

Many thanks

JC

Re: Solax sk-su3000e - Pylontech us2000c Battery BMS and CT Clamps

Posted: Sun Mar 10, 2024 10:27 am
by JC_UK
Hi all,

All working now.

See:
https://camelot-forum.co.uk/phpBB3/view ... =14&t=2893

Many thanks