Huawei SUN2000-50KTL-JPM0 - Page 102

SUN2000-(50KTL-JPM0, 50KTL-JPM1, 63KTL-JPM0)
User Manual
8 Maintenance
Issue 01 (2018-09-30)
Copyright © Huawei Technologies Co., Ltd.
96
Alarm
ID
Alarm
Name
Alarm
Severity
Cause
Measures
2039
Output
Overcur
rent
Major
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 power
production of the PV plant,
check whether the output is
short-circuited. If the fault
persists, contact Huawei
technical support.
2040
Output
DC
Compon
ent
Overhig
h
Major
The DC component of the SUN2000
output current exceeds the specified
upper threshold.
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.
2051
Abnorm
al
Residual
Current
Major
The insulation impedance of the input
side to PE decreases when the
SUN2000 is operating.
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.
2061
Abnorm
al
Groundi
ng
Major
1. The PE cable for the SUN2000 is
not connected.
2. The SUN2000 output side does not
connect to an isolation transformer
when the PV string output is
grounded.
1. Check that the PE cable for the
SUN2000 is connected
properly.
2. If the PV string output is
grounded, check that the
SUN2000 output side connects
to an isolation transformer.