SMA SC 500HE-20 - Manual (Page 83)

SMA Solar Technology AG 10 Troubleshooting
Operating Manual SCxxxHE-20-BE-BEN111210 83
77xx Cause of error
Contactor error
Error message 7704
< DC-disconnection unit >
Error message 7707
< AC separating point >
Error message 7708
< No Remote GFDI response >
Measure
< Check inverter circuit and contactors >
– Contact the SMA Service Line.
7801 Error message
< Surge voltage arrestor >
Measure
< Check surge voltage arrestors >
7901 Error message
< Reverse current >
Measure
< Check DC generator connection >
– Contact the SMA Service Line.
87xx Cause of error
External active and reactive power setpoints are invalid.
Error message 8701
< Invalid analogue active power specification >
Error message 8703
< Analog reactive power setpoint invalid >
Error message 8704
< Invalid analogue power factor specification >
Measure
< Check active and reactive power interface >
Error no. Cause of error, error message and corrective measure