SUN2000-(25KTL, 30KTL)-US
User Manual
8 Maintenance
Issue 03 (2017-04-01)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
92
Alarm ID Alarm
Name
Alarm
Severity
Causes
Measures
202
Invert
Module
Fault
Major
Abnormal external conditions
cause the protection for the
inversion circuit inside the
SUN2000. The possible causes
are as follows:
Reason ID = 13
The grid voltage sharply
drops or short-circuits,
resulting in a fault in the
voltage check circuit of the
SUN2000.
Reason ID = 14
The grid voltage sharply
drops or short-circuits,
resulting in instantaneous
high output current of the
SUN2000.
Reason ID = 16
The DC current of grid
current exceeds the
allowable range.
Reason ID = 20
The SUN2000 output
short-circuit leads 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
recovers to the normal operating
status after the fault is rectified.
2.
If the alarm persists, contact
Huawei technical support.
Reason ID = 20
1.
Check whether the SUN2000
output cables are short-circuited.
Rectify any fault.
2.
If the alarm persists, contact
Huawei technical support.
301
Grid
Voltage
Abnormal
Major
The voltage of the power grid
is beyond the acceptable range.
The possible causes are as
follows:
Cause ID = 4
The power grid voltage is
below the specified lower
threshold.
Cause ID = 16
The power grid voltage is
below the specified lower
threshold.
Cause ID = 19
The power grid voltage has
exceeded the specified
upper threshold for 10
minutes.
Reason ID = 26
The grid voltage is higher
than the allowable range.
Cause ID = 4
1.
If the alarm occurs accidentally,
possibly the power grid is
abnormal accidentally. The
SUN2000 automatically recovers
to the normal operating status
after the fault is rectified.
2.
If the alarm occurs frequently,
check whether the power grid
voltage is within the acceptable
range. If no, contact the local
power operator. If yes, obtain
written permission from the local
power operator and log in to the
SUN2000 app, SmartLogger, or
NMS to change the power grid
overvoltage and undervoltage
protection thresholds.
3.
If the alarm persists for a long
time, check the AC circuit
breaker and output cables of the
SUN2000.