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ADV/DC/CHARGE - return amps 8.0 battery voltage 28.6V params met time 1 minutes charge factor 96%
This worked well for a long time, but recently the FNDC has been refusing to declare Full Conditions Met, even while reporting 29.0V battery voltage, battery charge current well below 8.0A, and 100% or 99% SOC. I can't remember if I changed something that might have triggered the change, but don't believe so.
To avoid hours of lost PV production, I had to stop using the advanced grid-tie control feature, or else remember to manually set the FX from NoSell to GridTie each morning. Only following an extended grid outage two weeks ago, which allowed batteries to rise to Absorb for an hour or two, did it finally declare them Full.
I tried rebooting the FNDC by unplugging its Hub cable for 10 seconds, to no effect. Didn't try RESET or CLR on Mate page 3.
Today, just on a hunch I lowered ADV/DC/CHARGE->battery_voltage to 28.4V, and it went to Full Conditions Met in less than a minute!
So, is that voltage setting treated as an absolute value, or is it adjusted up and down based on the current BTS temperature? Or, can anyone think of another explanation for this strange behavior? Voltage readings from the various components (FX, CC's, FNDC) are always within 0.1V of one another, so it isn't a calibration issue.