Huawei SUN2000-8K-LC0 Series User Manual page 107

SUN2000-(8K, 10K)-LC0 Series
User Manual
Alarm ID Alarm
Name
2068 Battery
Abnorma
l
2070 Active
Islanding
2077 Off-grid
output
overload
Issue 01 (2023-09-15)
Alarm Possible Causes
Severity
Minor ● The battery is faulty.
● Communication with the
battery is interrupted.
● The battery circuit
breaker is disconnected
during the running of
the inverter.
Cause ID = 1–5
● 1: The battery
communication is
abnormal.
● 2: The battery port
experiences overcurrent.
● 3. The battery enabling
cable is not properly
connected.
● 4: The battery port
voltage is abnormal.
● 5: The battery cable
connection is abnormal.
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the device detects
islanding proactively.
Major Cause ID = 1, 2
● The output is
overloaded or short-
circuited.
● The irradiance or battery
level is low.
Copyright © Huawei Digital Power Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
1. If the battery fault indicator is
steady on or blinking, contact
the battery supplier.
2. Check that the battery is
enabled, the communications
cable and power cable are
connected correctly, and the
communication parameters
are consistent with the RS485
configuration on the device.
3. Check that the auxiliary
power switch on the battery
is set to ON.
4. Send a shutdown command
on the app. Turn off the AC
output switch, DC input
switch, and battery switch.
Then turn on the battery
switch, AC output switch, and
DC input switch in sequence
after 5 minutes.
5. If the fault persists, contact
your dealer or technical
support.
Check that the voltage at the
grid connection point of the
device is normal.
1. Check whether the device
output is short-circuited.
2. Check whether the device
load configuration exceeds
the rated value.
3. If the irradiance or battery
level is low, remove some
loads.
4. After the preceding problems
are resolved, manually clear
the alarm.
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