Huawei SUN2000-2KTL-L1 User Manual page 90

SUN2000-(2KTL-6KTL)-L1
User Manual
Alarm Alarm Name
ID
2032 Grid Failure
2033 Grid
Undervoltage
Issue 04 (2021-04-01)
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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