Huawei SUN2000-(2KTL-6KTL)-L1 - Page 87

ɲ D½Ñàǿf¯^kEǂǀǀǀÊìàäì¯ä¯ñìÑýÊÉÑÑà©ñÊì²ÑÊäÊÑàÉÃÃă
after a fault occurs.
ɲ D²ÊÑàǿ^ÑÉÑÉÝÑÊÊìäà©ñÃìăñìì¯^kEǂǀǀǀÊäì²ÃÃÑÊÊììÑì¯
power grid and generate power.
ɲ wàʲʪǿf¯^kEǂǀǀǀ©ñÊì²ÑÊäÊÑàÉÃÃăȀñì²ìäÑñìÝñìÝÑýààää
due to external factors.
Table 8-2 Common alarms and troubleshooting measures
Alarm
ID
Alarm Name Alarm
Severity
Possible Causes Troubleshooting
2001 High String
Input Voltage
Major The PV array is not properly
ÑÊĒªñàȇ Excessive PV
modules are connected in
series to the PV string, and
therefore the open-circuit
voltage exceeds the
maximum SUN2000
operating voltage.
Cause ID = 1, 2
ɲ ǁǿf¯Wvǁ²ÊÝñìüÑÃìª
is high.
ɲ ǂǿf¯Wvǂ²ÊÝñìüÑÃìª
is high.
Check the serial connection
ÑÊĒªñàì²ÑÊ of the PV
string and ensure that the
PV string open-circuit
voltage is not greater than
the maximum operating
voltage of the SUN2000.
After the PV array
ÑÊĒªñàì²ÑÊ is corrected,
the alarm disappears.
2002 DC Arc Fault Major The PV string power cables
arc or are in poor contact.
Cause ID = 1, 2
ɲ ǁǿWvǁà©ñÃì
ɲ ǂǿWvǂà©ñÃì
Check whether the string
cables arc or are in poor
contact.
2011 String Reversed Major The PV string is reversely
connected.
Cause ID = 1, 2
ɲ ǁǿWvǁ²äàüàäÃă
connected.
ɲ ǂǿWvǂ²äàüàäÃă
connected.
Check whether the PV
string is reversely
connected to the SUN2000.
If yes, wait until the PV
string current decreases
below 0.5 A, set DC switch
to OFF, and adjust the PV
string polarity.
2021 AFCI Check
Failure
Major The AFCI check fails.
Cause ID = 1, 2
ɲ ǁǿf¯&/¯À²àñ²ì
is abnormal.
ɲ ǂǿf¯&/²àñ²ì²ä
faulty.
Turn Ñč the AC output
switch and DC input switch,
and then turn them on
after 5 minutes. If the fault
persists, contact your
dealer or Huawei technical
support.
SUN2000-(2KTL-6KTL)-L1
User Manual 8 System Maintenance
Issue 03 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 81