Huawei SUN2000-2KTL-L1 User Manual page 90

SUN2000-(2KTL-6KTL)-L1
User Manual
Alarm ID Alarm
Name
2032 Grid
Failure
2033 Grid
Undervol
tage
Issue 03 (2020-07-20)
Alarm Possible Causes
Severity
Major Cause ID = 1
● The power grid
experiences an outage.
● The AC circuit is
disconnected or the AC
circuit breaker is OFF.
Major Cause ID = 1
The grid voltage is below
the lower threshold or the
low voltage duration has
lasted for more than the
value specified by low
voltage ride-through
(LVRT).
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
1. Check the AC voltage.
2. Check whether the AC circuit
is disconnected or the AC
circuit breaker is OFF.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The SUN2000
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm occurs frequently,
check whether the power grid
voltage is within the allowed
range. If no, contact the local
power operator. If yes, modify
the grid undervoltage
protection threshold through
the mobile app, SmartLogger,
or network management
system (NMS) with the
consent of the local power
operator.
3. If the fault persists for a long
time, check the connection
between the AC switch and
the output power cable.
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