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1) Utility priority mode (d0) • When the power supply is normal(in line with the machine power input voltage range), on the one hand, the power supply and PV charge the battery at the same time; on the other hand, the power supply only supplies power to the load(the load does not consume PV and battery energy); • When the mains power is abnormal(the mains power is beyond the working range of the machine or the mains power is interrupted), the machine will switch to the battery inverter power supply, and the battery will supply power to the load, when the PV power is greater than the load power, the load will be completely supplied by the PV power, and the excess energy will charge the battery; when the PV power is less than the load power, the insufficient part will be supplemented by the battery The load is supplied by PV and battery together. 2) Battery priority mode (d1/d2) • When the machine has no low-voltage battery alarm, even if the mains power input is normal, the machine will switch to the battery inverter power supply, and the battery will supply power to the load. When the PV power is greater than the load power, the PV power will supply power to the load completely, and the excess energy will charge the battery. When the PV power is less than the load power, the insufficient part will be supplemented by the battery, and the PV and battery will supply power to the load Start to supply power to the load; • When the battery is low voltage (i.e. the voltage of a conventional single battery is 11vdc) and the mains input is normal, the machine will switch to the mains mode for power supply, and the mains will supply power to the load completely, while the PV will charge the battery.

LED+LCD display, easy operation and data checking, can set each function and data directly;Multi-protection function(overload, over temperature, short circuit protection and so on) RS485 communication port/APP optional.