Alar
m ID
Alarm
Name
Alarm
Severity
Possible Cause Suggestion
2013 Abnorm
al String
Power
Warning Cause ID = 1–28,
corresponding to PV1–PV28
respectively.
● The PV string is shaded
for a long time.
● The PV string has aged
abnormally.
1. Check whether the PV string
current is obviously lower than the
currents of other PV strings.
2. If yes, check whether the PV string
is shaded.
3. If the PV string is clean and not
shaded, check whether any PV
module is faulty.
2014 High
String
Voltage
to
Ground
Major Cause ID = 1
The string-to-ground
voltage is abnormal, which
may cause power
degradation risks.
1. If no PID compensation device is
deployed in the system, disable
the PID protection function. Note:
If the PID protection function is
disabled but the nighttime reactive
power compensation is enabled,
PV module degradation may occur.
2. If there is a PID compensation
device in the system, check
whether it is faulty. If yes, rectify
the fault.
3. Check whether the device and PID
compensation device have
consistent compensation direction
settings. If not, adjust the settings
based on the PV module model.
(Note: If the PV– is set to positive
oset, the voltage between the
PV– of the device and the ground
should be greater than 0 V to
clear the alarm; if the PV+ is set to
negative
oset, the voltage
between the PV+ of the device and
the ground should be less than 0 V
to clear the alarm.)
4. If the alarm occurs repeatedly,
contact your dealer or technical
support.
SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual 9 Alarm Reference
Issue 07 (2023-06-30) Copyright © Huawei Technologies Co., Ltd. 89
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