Hello,
I have a Multiplus II 3000 connected to a 48V LiFePo4 Bank, the system is running as grid connect ESS in Mode 3 (external control), I set the power-setpoint via MQTT and it works as expected.
When inverting the Multiplus is always in Bulk mode and responds to the given setpoint as expected. Every 2-3 mins the Multiplus stops producing power, goes into passthrough for 2-5 seconds and switches back to bulk afterwards. (See attached graphs)
The graphs are generated with the values published via MQTT by my external controller and the venus os.
This happens in all load situation (e.g. when continously running around 100W or 2000W), at all SOCs, the battery voltage also is constant. The multiplus does not report any errors.
I've tried different venus OS Versions, no BMS connected to VenusOS and with BMS connected to VenusOS, same behaviour.
When setting a positive power setpoint for AC charging no 'drops' occur, it only happens while discharging/inverting.
Can someone explain this behaviour? I'm wondering if there might be a fault on my side or why the inverter is behaving like this. Can i provide more data to help troubleshoot this?
Many Thanks,
David