System Manual 11 Troubleshooting
83
Circuit breaker of the branch on the DC side is abnormal and this branch cannot
work normally
Check the abnormal circuit breaker when the MV Station is voltage-free
Before device stops, the non-abnormal branches can work normally and the MV
Station can operate in grid-connection normally
11.5 Other Faults
The MV Station shuts down shortly after start-up
DC input voltage just reaches the MV Station start-up voltage. Voltage will
decrease and the MV Station will stop when it is under load.
Design the serial and parallel connection in accordance with the open circuit
voltage; increase the input DC voltage; avoid adopting the critical voltage
LCD Display Cannot Start or Stop the MV Station
Communication malfunction between the LCD display and the DSP; LCD power
supply malfunction
Check the connection between the LCD display and the DSP when the MV
Station is voltage-free
Communication Failure with PC
Possible reasons are various. Please refer to the Measure for troubleshooting
Check if the address and the Baud rate of the LCD are the same with that of
PC
Check to ensure the circuits are properly connected and if the RS485
communication is adopted, the A and B ports are connected correctly
Check if the communication converters are matched. Communicate again
after replacing the converter
The monitor disk is installed incorrectly. It is recommended to reinstall the
disk
If all the above-mentioned items are correct and this fault continues, please
replace the PC communication module on the LCD display
The monitor disk might be incompatible with the antivirus software and thus
cannot be installed correctly. You are recommended to disable the antivirus
software and then install the monitor software.
If the fault still occurs, please contact Sungrow
To Next Page
Loading...
Need help?
General
