Huawei SUN2000-17KTL - Page 120

SUN2000 (8KTL-28KTL)
User Manual
8 Maintenance
Issue 12 (2019-06-30)
Copyright © Huawei Technologies Co., Ltd.
113
Alarm ID
Name
Severity
Causes
Measures
PV string and the ground is
abnormal, and there is a
risk of power attenuation.
set based on the PV module
model. If not, reset them on the
SmartLogger or SUN2000 app.
4. If the alarm occurs repeatedly,
contact your supplier or Huawei
technical support.
202
Abnormal
Invert
Circuit
Major
Abnormal external conditions
trigger the protection for the
inverter circuit inside the
SUN2000. The possible causes
are as follows:

Reason ID = 13
A sharp drop in grid
voltage or a short-circuit
has occurred, resulting in a
fault in the voltage check
circuit of the SUN2000.

Reason ID = 14
A sharp drop in grid
voltage or a short-circuit
has occurred, resulting in
instantaneous high output
current from the SUN2000.

Reason ID = 16
The grid DC current
exceeds the allowed range.

Reason ID = 20
The SUN2000 output
short-circuits, leading to a
sharp increase in output
current.
Cause ID = 13/14/16
1. The SUN2000 monitors its
external working conditions in
real time and automatically
reverts to normal operating status
after the fault is rectified.
2. If the alarm occurs repeatedly,
contact Huawei technical
support.
Reason ID = 20
1. Check whether the SUN2000
output cables are short-circuited.
Rectify any fault.
2. If the alarm occurs repeatedly,
contact Huawei technical
support.
301
Abnormal
Grid
Voltage
Major
The grid voltage is beyond the
acceptable range. The possible
causes are as follows:

Cause ID = 4
The grid voltage is below
the specified lower
threshold.

Cause ID = 16
The grid voltage is higher
than the allowed range.

Cause ID = 19
The grid voltage has
exceeded the specified
upper threshold for 10
minutes.

Reason ID = 26
Cause ID = 4
1. If the alarm occurs accidentally,
it is possible that there is an
accidental grid abnormality. The
SUN2000 automatically reverts
to normal operating status after
the fault is rectified.
2. If the alarm occurs repeatedly,
check whether the grid voltage is
within the allowed range. If not,
contact the local power operator.
If so, refer to 7.2.9 Setting
Protection Parameters or change
the grid overvoltage and
undervoltage protection
thresholds on the SmartLogger,
SUN2000 app, or NMS after
obtaining approval from the local