SMA SC 400HE - Manual (Page 84)

7 Troubleshooting SMA Solar Technology AG
84 SC4-63HE-BE-BEN103280 Operating Manual
220 Error text:
Release- or Reset-Signal faulty Error type 2
Failure cause:
The release signal or confirmation signal of the inverter bridge is faulty.
Corrective measures:
Contact the SMA Serviceline if the error persists.
222 Error text:
Ambient temperature Error type 2
Failure cause:
The ambient temperature is higher than 51°C.
Corrective measure:
• Check the cooling concept.
• Check the fans.
• Check the ambient conditions.
• Check the sensor.
281 Error text:
Ground fault or SPD defect Error type 2
Failure cause:
GFDI has tripped. There is a ground fault.
Corrective measure:
Check the PV plant for a ground fault.
400 Error text:
Internal failure of inverter bridge Error type
2/3
Failure cause:
Internal inverter bridge failure (e.g., symmetry fault, board voltage, undertemperature,
sensor breakage).
Corrective measures:
Contact the SMA Serviceline if the error occurs frequently.
No. Description