Sleeping The PV voltage is two volts less than the battery voltage. This may also appear during the day when the FLEXmax 80 is transitioning between certain states, or due to other conditions.
SysError (Very rare) System Error indicates an internal
Tracking In
Unloaded The battery terminals abruptly unload. Unloaded is also displayed if the battery breaker trips while MPPTing or the battery voltage is set too low.
Wakeup As the PV open circuit voltage (VOC) rises above the battery system voltage by two volts, the FLEXmax 80 prepares to deliver power to the batteries. During this period, the FLEXmax 80 is calculating the pulse width modulation (PWM) duty cycles, turning on power supply voltages in the proper sequences, and making internal calibrations. At wakeup, the FLEXmax 80 closes its relays and then starts tracking the input voltage (the “initial” tracking) towards the battery voltage. At dawn and dusk this may happen many times until there is (or is not) enough power from the PV array to keep going. Wakeup is also a time when the FLEXmax 80 acquires a new VOC.
Zzzzz... At night (after 3 hours of continuous Sleeping) the FLEXmax 80 will display Zzzzz... until the next wakeup. At the next wakeup, (usually the next morning), the daily statistics of a single FLEXmax 80, (AmpHours, KWh, etc.), will accumulate into the total statistics and then the displayed daily statistics and End of Day summary will clear. A Bulk charge will automatically initiate at the next Wakeup. A FLEXmax 80 combined with a HUB and a MATE will log at midnight.
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