Goodwe SDT Series User Manual page 66

09 Maintenance
No. Fault
43 PV voltage Low
44 BUS voltage Low
BUS Soft Start
45
Failure
BUS Voltage
46
Imbalance
Gird Phase Lock
47
failure
Inverter
48 Continuous
Overcurrent
Inv Software
49
Overcurrent
R Phase Hardware
50
Overcurrent
S Phase Hardware
51
Overcurrent
T Phase Hardware
52
Overcurrent
PV Hardware
53
Overcurrent
PV Software
54
Overcurrent
55 PV HCT Failure
Cavity
56
Overtemperature
Cause
Sun light is weak or
changing abnormally.
boost driving ciucuit is
abnormal.
1. Abnormal inverter
sampling circuit
2. Abnormal hardware.
the grid frequency is
unstable.
Short time sudden
changes in the grid or
load cause the control
overcurrent.
Sun light is weak or
changing abnormally.
Abnormal boost current
sensor
1. The inverter is
installed in a place
with poor ventilation.
2. The ambient
temperature exceeds
60℃.
3. A fault occurs in the
internal fan of the
inverter.
User Manual V1.3-2024-01-25
Solutions
1. If the problem occurs occasionally, the
reason might be abnormal sun light. The
inverter will recover automatically without
manual intervention.
2. If the problem occurs frequently,
contact the dealer or the after-sales
service.
Disconnect the AC output switch and
DC input switch, then connect them 5
minutes later. Contact the dealer or the
after-sales service if the problem persists.
If the problem occurs occasionally, ignore
it. If the problem occurs frequently,
contact the dealer or the after-sales
service.
Disconnect the AC output switch and
DC input switch, then connect them 5
minutes later. Contact the dealer or the
after-sales service if the problem persists.
1. Check the ventilation and the ambient
temperature at the installation point.
2. If the ventilation is poor or the
ambient temperature is too high,
improve the ventilation and heat
dissipation.
3. Contact the dealer or after-sales
service if both the ventilation and the
ambient temperature are proper.
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