Huawei SUN2000-60KTL-M0 User Manual page 103

SUN2000-(60KTL, 65KTL)-M0
User Manual (Mexico Edition)
Table 8-2 Common alarms and troubleshooting measures
Alarm Alarm Name
ID
2001 High string input
voltage
2011 String Reverse
Connection
Issue 06 (2020-10-12)
Alarm Cause
Severity
Major The PV array is incorrectly
configured. Excessive PV
modules are connected in
series to the PV string, and
hence the PV string open-
circuit voltage exceeds the
maximum operating
voltage of the SUN2000.
● Cause ID = 1
corresponds to PV
strings 1 and 2.
● Cause ID = 2
corresponds to PV
strings 3 and 4.
● Cause ID = 3
corresponds to PV
strings 5 and 6.
● Cause ID = 4
corresponds to PV
strings 7 and 8.
● Cause ID = 5
corresponds to PV
strings 9 and 10.
● Cause ID = 6
corresponds to PV
strings 11 and 12.
Major The PV string is reversely
connected.
Cause IDs 1 to 12
respectively correspond to
PV strings 1 to 12.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Measures
Reduce the number of
PV modules connected in
series to the PV string
until the PV string open-
circuit voltage is less
than or equal to the
maximum operating
voltage of the SUN2000.
After the PV array
configuration is
corrected, the alarm
stops.
Check whether the PV
string is reversely
connected to the
SUN2000. If yes, wait
until the solar irradiance
declines at night and the
PV string current reduces
to below 0.5 A. Then,
turn off the two DC
switches and correct the
PV string connection.
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