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M. K. asked

MPPT 450 200 RS BYD High Voltage Alarm

Dear Community,

I have an issue with ESS system, the system is DC coupled solar system with the following:

  • MultiPlus II 48/8000/110-100
  • MPPT RS 450 200
  • Cerbo GX + Touch
  • BYD BMU
  • 8 x 5kWh LV Flex Lite
  • normal protections with by pass change-over switch

So, I programmed the system in ESS mode with all parameters checked... when the batteries are full I am receiving an alarm on the Cerbo "BYD Premium LV battery High Voltage" I guess the BYD BMU is sending this alarm to the cerbo.

high-voltage-byd-alarm.jpeg


Everything is working fine. I can see the alarm when the battery is full. So, maybe there is a delay in the MPPT or the BYD BMU parameters have to be adjusted. if you have the solution then please share it.

Thank you in advance,

BYDbattery system voltage
2 |3000

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