Troubleshooting
80
Type Fault Diagnosis and solution
PV
PV_02_RE-
VERSE
PV2 reverse connection
• Turn o PV, battery and power grid, restart inverter, and check the
connection status of positive and negative poles of PV2.
PV
PV_01_VOLT_
HIGH
PV1 Voltage is too high
• Check the output voltage of PV1.
PV
PV_02_VOLT_
HIGH
PV2 Voltage is too high
• Check the output voltage of PV2
BAT
BAT_TYPR_
CFG_ERR
Battery type conguration error
• Turn o PV, battery and power grid, restart inverter, and conrm
whether the battery type is correct.
BAT
BATT_VOLT_
HIGH
Battery voltage is too high
• Check whether the battery output voltage is within the normal
range.
BAT
BAT_BMS_
CELL_FAULT
BMS battery failure
• Please contact the battery supplier.
BAT
BAT_BMS_
COMM_FAULT
BMS communication failure
• Check whether the communication between battery and inverter is
normal.
GRID GRID_LOSS
Power grid loss
• Check whether the battery input voltage is within the normal work
ing range.
GRID GRID_OVP1
The grid voltage exceeds the allowable value 1
• Check whether the grid voltage is within the normal working range.
GRID GRID_OVP2
The grid voltage exceeds the allowable value 2
• Check whether the grid voltage is within the normal working range.
GRID GRID_UVP1
The grid voltage is lower than the allowable value 1.
• Check whether the grid voltage is within the normal working range.
GRID GRID_UVP2
The grid voltage is lower than the allowable value 2.
• Check whether the grid voltage is within the normal working range.
GRID GRID_OFP1
Power grid frequency exceeds the allowable value 1.
• Check whether the grid frequency is within the normal working
range.
GRID GRID_OFP2
Power grid frequency exceeds the allowable value 2
• Check whether the grid frequency is within the normal working
range.
GRID GRID_UFP1
The power grid frequency is lower than the allowable value 1.
• Check whether the grid frequency is within the normal working
range.
GRID GRID_UFP2
The power grid frequency is lower than the allowable value 2.
• Check whether the grid frequency is within the normal working
range.