SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Page 128

Error no. Explanation Inverter behavior Corrective measures
S1 S2 R
6119 Data structure for communication
between operation control unit
and digital signal processor is in-
valid.
5 min 5 min x • Contact Service partner.
6120 Watchdog tripping error 30s W ‒ • Contact Service partner.
6121 No response from watchdog 30s W ‒ • Contact Service partner.
6122 Ten internal monitoring errors have
occurred in succession.
W 5 min ‒ • Contact Service partner.
6128 General error 5 min 5 min x • Contact Service partner.
6404 Overcurrent at line conductor L1,
L2 or L3
C Q x • Contact Service partner.
6405 Overvoltage in the DC link of the
inverter bridge
30s 5 min ‒ • Contact Service partner.
6410 24V supply voltage is invalid. 5 min 5 min x • Contact Service partner.
6417 15V supply voltage is invalid. 5 min 5 min x • Contact Service partner.
6418 Overtemperature of the inverter
bridge
5 min 15
min
‒ • Contact Service partner.
6422 Inverter bridge in undefined state 30s 5 min ‒ • Contact Service partner.
6423 Overtemperature in the switch
cabinet
5 min 30
min
‒ • Contact Service partner.
6425 Synchronization error with utility
grid
30s 5 min x • Contact Service partner.
6427 Sensor error of DC voltage mea-
surement
30s C ‒ • Contact Service partner.
6440 The MV transformer is no longer
hermetically sealed.
30s 5 min ‒ • Check the MV transformer.
6441 Sensor error during measurement
of DC voltage
30s 30s ‒ • Contact Service partner.
6443 Unspecified error in digital signal
processor
30s ‒ x • Contact Service partner.
6447 Self-test of inverter bridge failed Q Q ‒ • Contact Service partner.
6448 Insulation monitoring provides non-
permitted values
W W ‒ • Check insulation monitoring.
6451 Measured AC voltage of the in-
verter is less than utility grid volt-
age.
W W ‒ • Contact Service partner.
9 Troubleshooting
SMA Solar Technology AG
System ManualMVPS22JP-SH-en-11128