Alarm
ID
Alarm Name
Alarm
Severity
Cause
Troubleshooting Suggestions
2014
High input
string voltage
to ground
Major
Cause ID = 1
The voltage between the
input PV modules and the
ground is abnormal, and
there is a risk of power
degradation.
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 be degraded.
2. If the system has a PID
compensation device, check
whether the device is
abnormal. If yes, rectify the
fault.
3. Check whether the settings
of compensation direction
for the inverter and the PID
compensation 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 inverter PV–
and the ground should be
greater than 0 V to clear
the alarm; if the PV+ is set
to negative offset, the
voltage between the
inverter PV+ and the
ground should be less than
0 V to clear the alarm.)
4. If the alarm persists,
contact your dealer or
Huawei technical support.
2015
PV String Loss
Warning
This alarm is generated
when the PV string status
is abnormal in the
following conditions:
● A single PV string is
lost.
● Both 2-in-1 PV strings
are lost.
● Either of the 2-in-1 PV
strings is lost.
Cause ID 1–8: PV strings
1–18
1. If the PV string access type
is manually set, check
whether it is consistent with
the actual access status.
2. Check whether the inverter
terminals are properly
connected.
3. Check whether the PV
string terminals are
properly connected.
4. If a 2-in-1 terminal is used,
check whether it is normal.
SUN2000-(196KTL-H0, 200KTL-H2, 215KTL-H0)
Series
User Manual
8 Maintenance
Issue 07 (2021-07-08)
Copyright © Huawei Technologies Co., Ltd.
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