Huawei SUN2000 Series User Manual page 67

SUN2000-(12KTL-25KTL)-M5 Series
User Manual
Alarm Alarm
ID Name
2036 Grid
overfrequ
ency
2037 Grid
underfreq
uency
2038 Unstable
grid
frequency
Issue 01 (2022-06-15)
Alarm Possible Causes
Severity
Major Cause ID = 1
Power grid
exception: The
actual power grid
frequency is higher
than the
requirements for
the local power
grid code.
Major Cause ID = 1
Power grid
exception: The
actual power grid
frequency is lower
than the
requirements for
the local power
grid code.
Major Cause ID = 1
Power grid
exception: The
actual change rate
of the power grid
frequency does not
meet the
requirements for
the local power
grid code.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Troubleshooting
1. If the alarm occurs occasionally, the
power grid may be abnormal
temporarily. The inverter
automatically recovers after detecting
that the power grid becomes normal.
2. If the alarm persists, check whether
the power grid frequency is within
the acceptable range. If not, contact
the local power operator. If yes,
modify the grid overfrequency
protection threshold through the app,
SmartLogger, or NMS with the
consent of the local power operator.
1. If the alarm occurs occasionally, the
power grid may be abnormal
temporarily. The inverter
automatically recovers after detecting
that the power grid becomes normal.
2. If the alarm persists, check whether
the power grid frequency is within
the acceptable range. If not, contact
the local power operator. If yes,
modify the grid underfrequency
protection threshold through the app,
SmartLogger, or NMS with the
consent of the local power operator.
1. If the alarm occurs occasionally, the
power grid may be abnormal
temporarily. The inverter
automatically recovers after detecting
that the power grid becomes normal.
2. If the alarm persists, check whether
the power grid frequency is within
the acceptable range. If not, contact
the local power operator.
8 Maintenance
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