Troubleshooting - Huawei SUN2000-60KTL-M0 User Manual

SUN2000-60KTL-M0
User Manual (Europe Edition)
Item
Grounding
reliability

8.2 Troubleshooting

Alarm severities are defined as follows:



Table 8-2 Common alarms and troubleshooting measures
Alarm Alarm
ID Name
2001 High
String
Input
Voltage
2011 String
Reverse
Connect
Issue 02 (2018-10-15)
Check Method

Check that ground cables are securely
connected.
Major: The SUN2000 enters Shutdown mode and stops exporting power to the power
grid due to a fault.
Minor: Some components are faulty but the SUN2000 can still export power to the
power grid.
Warning: The SUN2000 output power decreases due to external factors.
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
Copyright © Huawei Technologies Co., Ltd.
Check that the unused COM, USB,
and RESERVE ports are covered by
watertight caps.
8 Maintenance
Maintenance
Frequency
The first inspection is six
months after the initial
commissioning. From
then on, the interval can
be six or twelve months.
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
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