Voltronic/axpert command for Low Battery Cut-off SOC

[Ben Harper]

Hi,

I'd like to be able to set the Low Battery Cut-off SOC value for a 6.2kw MKS4 / MKSIV voltronic inverter.

From the manuals I can find online, there is a command:

PSDV<nn.n><cr>: Setting battery cut-off voltage (Battery under voltage)

However, this doesn't have any effect when the battery mode is Pylontech.

So I'm thinking that there must be an equivalent command to set the SOC threshold (0..100) when the inverter has comms with the BMS.

I've tried all letters in the alphabet from PSDA..PSDZ, but all except for PSDV return (NAK.

Does anybody know what this command is, or if there's an updated command list available somewhere?

[Beat]

I have set battery mode to USE and set all parameters to battery specifications. As the specs on my batteries say the BMS cut off voltage is 40.5V I set 29 to 42V.

[Ben Harper]

On 2024/07/13 at 12:52 PM, Beat said:

I have set battery mode to USE and set all parameters to battery specifications. As the specs on my batteries say the BMS cut off voltage is 40.5V I set 29 to 42V.

Thanks, but I like to use the Pylontech battery mode, so that I get the benefit of smart BMS comms. I'm specifically looking for the low level command to change the SOC cutoff, which is different to the Battery Voltage cutoff.