Huawei SUN2000-196KTL-H0 - Page 101

8.5 Troubleshooting
Alarm severities are dened as follows:
● Major: The inverter is faulty. As a result, the output power decreases or the
grid-tied power generation is stopped.
● Minor: Some components are faulty without
aecting the grid-tied power
generation.
● Warning: The inverter works properly. The output power decreases or some
authorization functions fail due to external factors.
Table 8-1 Common alarms and troubleshooting measures
Alarm
ID
Alarm Name Alarm
Severity
Cause Troubleshooting Suggestions
2001 High String
Input Voltage
Major The PV array is not
properly congured.
Excessive PV modules are
connected in series to a
PV string, and therefore
the PV string open-circuit
voltage exceeds the
maximum operating
voltage of the inverter.
● Cause ID 1: PV strings
1 and 2.
● Cause ID 2: PV strings
3 and 4.
● Cause ID 3: PV strings
5 and 6.
● Cause ID 4: PV strings
7 and 8.
● Cause ID 5: PV strings
9 and 10.
● Cause ID 6: PV strings
11 and 12.
● Cause ID 7: PV strings
13 and 14.
● Cause ID 8: PV strings
15 and 16.
● Cause ID 9: PV strings
17 and 18.
Reduce the number of PV
modules connected in series in
the PV string until the PV
string open-circuit voltage is
not greater than the maximum
operating voltage of the
inverter. After the PV array
conguration is corrected, the
alarm disappears.
SUN2000-(196KTL-H0, 200KTL-H2, 215KTL-H0)
Series
User Manual 8 Maintenance
Issue 08 (2021-09-30) Copyright © Huawei Technologies Co., Ltd. 93