Huawei Iris Hellas SUN2000 Series - Page 103

Alarm
ID
Alarm Name Alarm
Severity
Cause Troubleshooting Suggestions
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 rectied, the inverter
automatically recovers.
2. If the alarm occurs
frequently and aects the
energy yield of the power
plant, check whether the
output is short-circuited. If
the fault cannot be
rectied, 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 specied
upper threshold.
1. If the exception is caused
by an external fault, the
inverter automatically
recovers after the fault is
rectied.
2. If this alarm occurs
frequently and aects the
energy yield of the PV
plant, contact your dealer
or Huawei technical
support.
2051 Abnormal
Residual
Current
Major Cause ID=1
The insulation impedance
of the input side to PE
decreases when the
inverter is operating.
1. If the alarm occurs
occasionally, the external
circuit may be abnormal
temporarily. The inverter
automatically recovers
after the fault is rectied.
2. If the alarm occurs
frequently or persists, check
whether the impedance
between the PV string and
the ground is too low.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1
User Manual
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Issue 05 (2020-08-30) Copyright © Huawei Technologies Co., Ltd. 95