Problem: Battery Disconnect
Solution :
1. Check whether the battery is connected and whether the battery is powered on.
2. Check if battery wiring port is open circuited.
Problem: Bat Under Voltage
Solution :
1. Restart the inverter and check whether the fault persists five minutes later.
2. Check the power grid and whether the PV is powered off. If so, wait for the grid, PV power, the inverter will automatically charge.
Problem: BMS System Error
Solution :
1. Check whether the battery connection is correct.
Problem: BMS Communication Fail
Solution :
1. Check the cable, crystal, Line sequence.
2. Check whether the battery switch is turned on.
Problem: Bat Under Temperature
Solution :
1. Check the ambient temperature near the battery to see if it meets the specifications.
Problem: Bat Over Temperature
Solution :
1. Disconnect the battery and reconnect it after an hour.
Problem: Bat Low Capacity
Solution :
1. First set the operating mode to battery priority to charge the battery, then set the DOD of the battery you want (when SOC<100%-DOD,
the battery will no longer discharge).
Problem: The Power Station Is In A Self-Generated Operating Mode, In Which The Load Should Use Battery And PV Power First,
But Sometimes Use Grid Power First
Solution :
1. Check whether the DIP switch of the battery is set to the correct position.
Problem: Discharge Overcurrent
Solution :
1. Restart the inverter and check whether the fault persists five minutes later.
2. Check whether the load exceeds the range of device parameters.
The inductive load should be calculated according to the instantaneous starting power.
3. Disconnect all power supplies and close the inverter.
After disconnecting the load, start the inverter to check whether it runs normally in no-load condition.
Problem: Charge Overcurrent