Update File Fail
File Upgrade Fault
Ÿ Check if the file and the folder are correct
Ÿ
Udisk Update
Fault
U Disk Upgrade Fault
Ÿ Check if the U disk is correctly plugged and the file is correct
Ÿ
Meter Fault
Meter Communication Fault
Ÿ Check if the communication cable between inverter and BI
connects normally or contact Panasonic Technical Support
BMS_Lost
Update Fault
Software Upgrade Fault
Ÿ Check if the communication cable between inverter and BI and re-
upgrade the software
Ÿ Check the communication cable between control board and
communication board and re-upgrade the software
Ÿ Check the communication cable between inverter and battery
Ÿ
PV Volt Fault
PV Voltage Out of Normal Range
Ÿ Decrease the PV voltage
Ÿ
DCI OCP Fault
DCI over current protection Fault
Ÿ
DCV OVP Fault
DCV EPS over voltage protection Fault
Ÿ
BMS Communication Lost
Ÿ Check the communication connection between the battery and the
inverter
Ÿ
Faults
Diagnosis and solution
Bat Current
Imbalance
The Firmware Fault of Battery Charge
Bat ConDir Fault
The Positive and Negative Pole of Battery Connected Reversely
Ÿ Re-connect the battery.
InvEEPROMFault
Inverter EEPROM Fault
Ÿ Please contact Panasonic Technical Support
EPSBatPowerLow
Battery Power Low in EPS Mode
Ÿ Turn off high power device and charge for the battery
EPS OverLoad Fault
Over Load in EPS Mode.
Ÿ Turn off some device and clear the
error
Grid Over Freq
Fault
Grid Frequency Out of Range
Ÿ System will reconnect if the utility is back to normal
Ÿ Or please contact Panasonic Technical Support
Grid Over Volt
Fault
Grid Voltage Out of Range
Ÿ System will reconnect if the utility is back to normal
Ÿ
Grid Relay Fault
GIRD Relay Fault
Ÿ
Grid Under Freq
Fault
Grid Frequency Out of Range
Ÿ System will reconnect if the utility is back to normal
Ÿ
Grid Under Volt
Fault
Grid Voltage Out of Range
Ÿ System will reconnect if the utility is back to normal
Ÿ
Bus Volt Fault
Bus Voltage Out of Normal Range
Ÿ
Faults
Diagnosis and solution
Troubleshooting
Troubleshooting
107
106
Or contact Panasonic Technical Support
Or contact Panasonic Technical Support
Or contact Panasonic Technical Support
Or contact Panasonic Technical Support
Or contact Panasonic Technical Support
Please contact Panasonic Technical Support
Please contact Panasonic Technical Support
Ÿ
Please contact Panasonic Technical Support
Or please contact Panasonic Technical Support
Or please contact Panasonic Technical Support
Or please contact Panasonic Technical Support
Please contact Panasonic Technical Support
Please contact Panasonic Technical Support
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