This is caused by low intermediate circuit DC voltage. This can be caused by a missing supply voltage phase from a blown fuse or faulty isolator or contactor or internal rectifier bridge fault or simply low mains voltage. POSSIBLE FIXES: Check mains supply and fuses.
The system takes solar PV (photovoltaic), wind, grid and generator inputs and provides stabilized 220 VAC and telecom-standard DC outputs (48 V and -12 V) to the equipment.
A grid-tie inverter converts direct current (DC) into an alternating current (AC) suitable for injecting into an electrical power grid, at the same voltage and frequency of that power grid.
PV panels generate DC power and an inverter changes that into usable AC electricity. We will also explain the connection procedure for the charge controller and the battery.
When comparing real-world efficiency, DC-coupled systems typically achieve 2-3% higher overall efficiency than AC-coupled systems. This advantage comes from reducing the number of power conversions needed to store and use solar energy.
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