Alar
m ID
Alarm
Name
Alarm
Severity
Possible
Causes
Troubleshooting
2040 Output
DC
compo
nent
overhig
h
Major Cause ID = 1
The DC
component of
the inverter
output current
exceeds the
upper
threshold.
1. The inverter monitors its
external operating conditions
in real time and automatically
recovers after the fault is
rectied.
2. If the alarm persists and
aects the energy yield of the
PV plant, contact your dealer
or Huawei technical support.
2051 Abnor
mal
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
accidentally, the external
power cable may be
abnormal temporarily. The
inverter automatically
recovers after the fault is
rectied.
2. If the alarm persists or lasts a
long time, check whether the
impedance between the PV
string and ground is too low.
2061 Abnor
mal
groundi
ng
Major Cause ID = 1
● The neutral
wire or PE
cable of the
inverter is
not
connected.
● The output
mode set for
the inverter
is
inconsistent
with the
cable
connection
mode.
Power o the inverter (turn o
the AC output switch and DC
input switch, and wait for a
period of time. For details about
the wait time, see the
description on the device safety
warning label), and then
perform the following
operations:
1. Check whether the PE cable
for the inverter is connected
properly.
2. If the inverter is connected to
a TN power grid, check
whether the neutral wire is
properly connected and
whether the voltage of the
neutral wire to ground is
normal.
3. After the inverter is powered
on, check whether the output
mode set for the inverter is
consistent with the output
cable connection mode.
SUN2000-(12K-25K)-MB0 Series
User Manual 7 System Maintenance
Issue 01 (2023-04-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 93
To Next Page
Loading...
Need help?
General
