Huawei SUN2000-111KTL-NHM0 User Manual page 116

SUN2000-111KTL-NHM0
User Manual
Alarm Alarm
ID Name
2014 High Input
String
Voltage to
Ground
Issue 09 (2023-12-18)
Alarm Possible Causes
Severity
Major Cause ID = 1
The voltage between the input PV
string and the ground is abnormal,
and there is a risk of power
attenuation.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Suggestions
1. If no PID
compensation device
exists in the system,
disable the PID
protection function at
night. Note: If the PID
protection function is
disabled but reactive
power compensation
at night is enabled, PV
modules may
attenuate.
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
settings of
compensation
direction for the solar
inverter and the PID
device are consistent.
If not, set them to be
consistent based on
the PV module model.
(Note: If the PV– is set
to positive offset, the
voltage between the
solar inverter PV– and
the ground should be
greater than 0 V to
clear the alarms; if the
PV+ is set to negative
offset, the voltage
between the solar
inverter PV+ and the
ground should be less
than 0 V to clear the
alarms.)
4. If the alarm persists,
contact technical
support.
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