Goodwe SDT Series User Manual page 65

User Manual V1.3-2024-01-25
No. Fault
31 1.5V Ref abnormal
32 0.3V Ref abnormal
33 BUS Overvoltage
34 P-BUS Overvoltage
N-BUS
35
Overvoltage
BUS
36 Overvoltage(Slave
CPU 1)
P-BUS
37 Overvoltage(Slave
CPU 1)
N-BUS
38 Overvoltage(Slave
CPU 1)
PV Input
39
Overvoltage
PV Continuous
40 Hardware
Overcurrent
PV Continuous
41 Software
Overcurrent
PV String
42 Reversed
(Str1~Str16)
Cause
The reference circuit is
abnormal.
The reference circuit is
abnormal.
1. The PV voltage is too
high.
2. The sampling of the
inverter BUS voltage is
abnormal.
3. The isolation of the
transformer of the
inverter is poor,
so two inverters
influence each other
when connected to
the grid. One of the
inverters reports DC
Overvoltage.
Excess PV modules are
connected in the series,
and the open-circuit
voltage is higher than the
operating voltage.
1. Improper PV panels
configuration.
2. Internal components
of the inverter are
damaged.
The PV string is
connected reversely.
Solutions
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.
Check whether the PV string open-circuit
voltage meets the maximum input
voltage requirements.
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.
Check if The PV string is connected
reversely.
61
09 Maintenance