Huawei SUN2000-100KTL-M2 - Page 120

Alarm
ID
Alarm
Name
Alarm
Severity
Possible Cause Suggestion
2038 Unstable
Grid
Frequenc
y
Major Cause ID = 1
Power grid exception: The actual
grid frequency change rate does
not comply with the local power
grid standard.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The solar
inverter automatically
recovers after detecting that
the power grid becomes
normal.
2. If the alarm occurs
frequently, check whether the
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
rectied, the device
automatically recovers.
2. If the alarm occurs
frequently and
aects the
operation of the power plant,
check whether AC short
circuit exists. If the fault
persists, contact your dealer
or technical support.
2040 Output
DC
Compone
nt
Overhigh
Major Cause ID = 1
The DC component of the solar
inverter output current exceeds
the specied upper threshold.
1. If the exception is caused
by an external fault, the
solar inverter
automatically recovers
after the fault is rectied.
2. If the alarm occurs
frequently, contact your
dealer or technical
support.
SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual 8 Maintenance
Issue 07 (2023-04-30) Copyright © Huawei Technologies Co., Ltd. 113