ID Name Severity Cause Solution
2037 Grid
underfre
quency
Major Cause ID = 1
Power grid exception: The
actual power grid
frequency is lower than the
requirements for the local
power grid code.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The inverter
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm persists, check
whether the power grid
frequency is within the
acceptable range. If not,
contact the local power
operator. If yes, modify the
grid underfrequency
protection threshold through
the app, SmartLogger, or
NMS with the consent of the
local power operator.
2038 Unstable
grid
frequenc
y
Major Cause ID = 1
Power grid exception: The
actual change rate of the
power grid frequency does
not meet the requirements
for the local power grid
code.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The inverter
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm persists, check
whether the power grid
frequency is within the
acceptable range. If not,
contact the local power
operator.
2039 AC
Overcurr
ent
Major Cause ID = 1
The grid experiences a
dramatic voltage drop or is
short-circuited. As a result,
the transient AC current of
the device exceeds the
upper threshold and
triggers protection.
1. The device detects its external
working conditions in real time.
After the fault is rectied, the
device automatically recovers.
2. If the alarm occurs frequently
and
aects the operation of the
power plant, check whether AC
short circuit exists. If the fault
persists, contact your dealer or
technical support.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 8 Maintenance
Issue 11 (2023-01-10) Copyright © Huawei Technologies Co., Ltd. 78
To Next Page
Loading...
Need help?
General
