Lcd Display Alarm Information And Troubleshooting - Sungrow SG2500U-MV System Manual

System Manual
Fan2-flt
Fault
Possible Correspond to the fault of the MV Station module fan 2 (right side fan from the
front view)
reason
Check the functionality of fan after the device is voltage-free
Measure
Remark Contact Sungrow
Alarm AC breaker flt
Possible AC side circuit breaker is abnormal
reason
Measure Check the AC circuit breaker when the MV Station is voltage-free
Remark Before device stops, the MV Station can operate in grid-connection normally
Fault Driver board fault
Driver board fault
Possible
reason
Stop the device to check and service the driver board.
Measure
Contact Sungrow
Remark
Carrier synch flt
Fault
Carrier synchronization fault
Possible
reason
The carrier synchronization cable is loose or broken.
Measure
Remark Contact Sungrow
Fault DC switch fault
Possible DC cabinet switch fault
reason
Measure Stop the device to check and service the DC cabinet switch
Remark Contact Sungrow
Fault Mism-ac
Possible Sensor is damaged
reason
Replace the sensor with the same model after the device is voltage-free
Measure
Contact Sungrow
Remark
Ctrol cabt. Temp-flt
Fault
The MV Station control cabinet fans fault
Possible
reason
Check and maintain the control cabinet fan when device is voltage-free
Measure
Remark Contact Sungrow
11.4

LCD Display Alarm Information and Troubleshooting

During alarm running state, the MV Station can operate normally and send warning signal.
User can check the alarm information through the Work state on the default menu or
through the Function->History-information->His-alarm interface to check the latest 100
history alarm information. The module will recover normal operation once the alarm is
removed.
11 Troubleshooting
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