I have SOK 48V 100Ah battery connected to MPPSolar inverter by RS485 (with Pylontech selected as protocol)
It's set up to bypass (to grid) if the battery can't provide enough power, but in my tests BMS turns off by OCP and then the inverter faults with too low bus voltage. Bypass never happens
I've queried inverter for BMS data it has and got in response:
So, if 0090 means 90A of max charging current (which is shown as total maximum charging current in inverter menu), that means that inverter thinks maximum discharge current could be 6450A
It's either data gets sent or received incorrectly and the interpreted wrong
I think this is the reason bypass mode never triggered
Could someone check what the battery actually sends?
Maybe @HighTechLab can shed some light on this
Thank you!
It's set up to bypass (to grid) if the battery can't provide enough power, but in my tests BMS turns off by OCP and then the inverter faults with too low bus voltage. Bypass never happens
I've queried inverter for BMS data it has and got in response:
Some of those settings I can confirm in inverter's menu576 -- Battery C.V. charging voltage (I presume in 0.1V)
576 -- Battery floating charging voltage (in 0.1V)
448 -- Battery cut-off voltage (in 0.1V)
0090 -- Battery max. charging current (in 1A)
6450 -- Battery max. discharging current (in 1A)
So, if 0090 means 90A of max charging current (which is shown as total maximum charging current in inverter menu), that means that inverter thinks maximum discharge current could be 6450A
It's either data gets sent or received incorrectly and the interpreted wrong
I think this is the reason bypass mode never triggered
Could someone check what the battery actually sends?
Maybe @HighTechLab can shed some light on this
Thank you!