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Hi,
after running several months with no issue at all, the MP II swicthed off and no message appeared on the GX not the VRM alarm log. Later i discovered irregular behaiviour of the SOC coming from the BYD BMS (a call to EFT is already opened) - nevertheless, i would expect some sort of logging from the MultiPlus II about that - any other location/source i could look at ? The only change within the last 2 weeks was updating the GX to 2.60.
best regards,
Martin
Is this still an issue?
The BYD may not have reported an issue to the gx at all. Is there a way to interface with the BYD at all maybe find out if there was a weak cell and the battery shut down?
The other thing to check is if the multi's own battery monitor is checked and configured. I have had systems when the multi has noticed an issue on ve bus voltage but the batteries say nothing yet have a weak cell and shut it off obviously dropping the voltage of the system and causing a shutdown.
Hi Alexandra,
meanwhile one of the two batteries have been detected as bad, it takes more than 5 days to get the technical support responding and few more days to finally come to the conclusion that one is out of order. Since then (nearly 2 weeks ago) i wait for the replacement to arrive. Regarding the symptoms, interesting was that the BMU reports a SOC between 0% and 100% (jumping back and forth) which finally leads the MultiPlus to shut down immediatly, what i still do not fully understand.
best regards,
Martin
