Huawei SUN2000 Series User Manual page 100

SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual
Alarm Alarm
ID Name
2014 High
Input
String
Voltage
to
Ground
2015 PV String
Loss
Issue 02 (2022-06-30)
Alarm Possible Cause
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.
Warnin Cause ID = 1–20
g
This alarm is generated when the
PV string status is abnormal due
to the following conditions: a
single PV string is lost; both 2-
in-1 PV strings are lost; one of the
2-in-1 PV strings is lost.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Suggestion
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 fault occurs
frequently, contact
technical support.
1. Check whether the solar
inverter terminals are
properly connected.
2. Check whether the PV
string terminals are
properly connected.
3. If a 2-in-1 terminal is
used, check whether it is
normal.
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