Huawei SUN2000-60KTL-M0 User Manual page 109

SUN2000-(60KTL, 65KTL)-M0
User Manual (Mexico Edition)
Alarm Alarm Name
ID
2039 Output
Overcurrent
2040 Output DC
Component
Overhigh
2051 Abnormal
Residual Current
Issue 06 (2020-10-12)
Alarm Cause
Severity
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.
Major Cause ID = 1
The DC component of the
SUN2000 output current
exceeds the specified
upper threshold.
Major Cause ID = 1
The insulation impedance
of the input side to PE
decreases when the
SUN2000 is operating.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Measures
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 power production
of the PV plant, check
whether the output is
short-circuited. If the
fault persists, contact
Huawei technical
support.
1. If the exception is
caused by an external
fault, the SUN2000
automatically recovers
after the fault is
rectified.
2. If the alarm occurs
frequently and affects
the power production
of the PV plant,
contact Huawei
technical support.
1. If the alarm occurs
accidentally, the
external power cable
may be abnormal
temporarily. The
SUN2000
automatically recovers
after the fault is
rectified.
2. If the alarm occurs
frequently or persists,
check that the
impedance between
the PV string and
ground is not below
the lower threshold.
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