Alarm
ID
Alarm Name
Alarm
Severity
Cause
Troubleshooting Suggestions
2038
Unstable Grid
Frequency
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 inverter
automatically recovers after
detecting that the power
grid becomes normal.
2. If the alarm occurs
frequently, check whether
the power grid frequency is
within the acceptable
range. If not, contact the
local power operator.
2039
Output
Overcurrent
Major
Cause ID=1
The power grid voltage
drops dramatically or the
power grid is short-
circuited. As a result, the
inverter transient output
current exceeds the upper
threshold and therefore
the inverter protection is
triggered.
1. The inverter detects its
external working conditions
in real time. After the fault
is rectified, the inverter
automatically recovers.
2. If the alarm occurs
frequently and affects the
energy yield of the power
plant, check whether the
output is short-circuited. If
the fault cannot be
rectified, contact your
dealer or Huawei technical
support.
2040
Output DC
Component
Overhigh
Major
Cause ID=1
The DC component of the
inverter output current
exceeds the specified
upper threshold.
1. If the exception is caused by
an external fault, the
inverter automatically
recovers after the fault is
rectified.
2. If this alarm occurs
frequently and affects the
energy yield of the PV
plant, contact your dealer
or Huawei technical
support.
SUN2000-(196KTL-H0, 200KTL-H2, 215KTL-H0)
Series
User Manual
8 Maintenance
Issue 07 (2021-07-08)
Copyright © Huawei Technologies Co., Ltd.
97