I have an issue with my three phase ESS, BYD being overcharged while running on generator
the Quattro keep on charging the battery with small current even when soc is 100% and CCL is reported as zero by BYD
I had to switch off the generator for fear of tripping on overvoltage ( reported by BYD 57v)
the firmware is v2.20~67 ) DVCC= on charging current set to 0 and CCL = 0 (reported by BYD)
this happens when only running on the generator on GRID input it stops correctly the charging
to check I changed the soc limit to 70 and dvcc charge current limit to zero
When running on generator the Quattro keeps on charging the battery. the solar chargers and pv inverters have been correctly throttled
the charge current changes from as low as 1.5 amp to 15 amp
Tthe Quattro keeps on toggling between bulk and passthrough mode
should it not remain in passthrough ?
the same thing happens when the soc is 100 % and the mode selected is kept batteries charged