Huawei SUN2000-2KTL-L1 User Manual page 91

SUN2000-(2KTL-5KTL)-L1
User Manual
Alarm ID Alarm
Name
2068 Battery
Abnormal
2070 Active
Islanding
2080 Abnormal
PV
Module
Configura
tion
Issue 01 (2020-04-17)
Alarm Possible Causes
Severity
Minor The battery is faulty,
disconnected, or the battery
circuit breaker is OFF when the
battery is running.
Cause ID = 1–4
 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.
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000 detects
islanding proactively.
Major PV module configuration does
not meet requirements, or the
PV module output is reversely
connected or short-circuited.
Cause ID = 2, 3, 5, 6, 7
 2: The number of
optimizers in a single string
exceeds the upper limit.
 3: The number of
optimizers in a single string
does not reach the lower
limit or the sunlight is
abnormal.

5: The optimizer output
voltage is abnormal.
 6: The PV string or parallel
connection is abnormal.

7: The string configuration
is changed.
Copyright © Huawei 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
enabling/power/communications
cable is correctly installed, and
that the communications
parameters are the same as the
SUN2000 RS485 configurations.
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 Huawei technical
support.
Check that the grid connection
voltage of the SUN2000 is normal.
Check whether the total number of
PV modules, number of PV modules
in a string, and number of PV strings
meet requirements and whether the
PV module output is reversely
connected.
 ID2: The PV string power
exceeds the upper threshold.

ID3: The PV string voltage is
low.
 ID5: The general output of the
PV module is reversely connected
or short-circuited.

ID6: The number of PV strings
connected in parallel under the
same MPPT is different.
 ID7: The string configuration is
changed. Perform optimizer
deployment again.
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