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grid at the max allowable current.
• The battery will not discharge even when SOC reaches 100%.
• Local loads will be supported by grid and PV energy.
ii. When grid or diesel generator is not available,
• When there is enough energy stored in battery, the EPS port
will export power to support local loads firstly from PV. If
there’s excessive PV energy, it will be used to charge the
battery. Otherwise battery will be discharged.
• When the battery SOC is below the lower threshold, the
inverter will stop export power to the EPS port. All energy from
PV will be used to charge the battery until the SOC reaches
the EPS restart value.
iii. When working in this mode:
• The max power*3 from the EPS port is limited by inverter type,
battery type and battery SOC.
• A larger battery is always recommended for off grid / back
up configuration. You should never discharge the battery
too deeply to avoid it “Running Flat”.
• When there is overload or short circuit fault, the inverter will
stop working and alarm will sound. It will try to restart several
times before totally shutting down. Turn off or unplug load to
remove the short circuit fault or overload as soon as possible.
*2: Firmware update may be required to support this mode.
*3: Please be noted that refrigerators, air conditioners, water
pumps and etc., demand a large start up currents and may trip
EPS overload protection. Be sure not to connect too many of this
kind of loads to avoid frequent system shutdown and restart.
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