A bit strange thing to me, but probably an easy riddle for some of you guys.
The installation has 60kWh of LiFePO4 batteries and 3x Quattro 8000 (three-phase install).
When the system is charging, it always stays in Bulk mode, never gets into float or absorption. That means that always whenever the SoC is below 99% and ready-to-charge relay is set Quattros drain abruptly full power to charge the batteries. The configurator is set for default LiFePO4 settings - bulk should stop at 95% of charge and charging current is limited to 80A per Quattro, which gives us 240A => C/5 (60kW/50V= 1200A). See attachment - charging current is set to 80A, not 52A as per picture.
Questions, is that a normal that once "ready-to-charge" is set, Quattros push all power to quickly charge it up? Or should it pass throu float mode instead. If such, where the issue may be based on?
On the picture you can see the green spikes (current) and the battery voltage (red). You can see the loading process - positive spikes and peak shaving - the negative spikes.