Huawei SUN2000 Series User Manual page 103

SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual
Alarm Alarm
ID Name
2036 Grid
Overfreq
uency
2037 Grid
Underfre
quency
Issue 02 (2022-06-30)
Alarm Possible Cause
Severity
Major Cause ID = 1
Power grid exception: The actual
power grid frequency is higher
than the standard requirement
for the local power grid.
Major Cause ID = 1
Power grid exception: The actual
power grid frequency is lower
than the standard requirement
for the local power grid.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Suggestion
1. If the alarm occurs
occasionally, the power
grid may be abnormal
temporarily. The solar
inverter automatically
recovers after detecting
that the power grid
becomes normal.
2. If the alarm occurs
frequently, check whether
the power grid frequency
is within the acceptable
range. If not, contact the
local power operator. If
yes, log in to the mobile
phone app, SmartLogger,
or NMS to modify the
power grid overfrequency
protection threshold with
the consent of the local
power operator.
1. If the alarm occurs
occasionally, the power
grid may be abnormal
temporarily. The solar
inverter automatically
recovers after detecting
that the power grid
becomes normal.
2. If the alarm occurs
frequently, check whether
the power grid frequency
is within the acceptable
range. If not, contact the
local power operator. If
yes, log in to the mobile
phone app, SmartLogger,
or NMS to modify the
power grid
underfrequency protection
threshold with the consent
of the local power
operator.
97