
SmartLogger2000
User Manual
7 WebUI
Issue 04 (2018-04-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
116
No.
Parameter
Description
Unit
Value Range
Remarks
46
Level-3 UF
protection
Specifies the level-3
underfrequency
protection threshold.
Hz
[0.85xFn, 1xFn]
Fn represents the
rated frequency.
47
Level-3 UF
protection
time
Specifies the level-3
underfrequency
protection duration.
ms
[50, 7200000]
48
Level-4 UF
protection
Specifies the level-4
underfrequency
protection threshold.
Hz
[0.85xFn, 1xFn]
Fn represents the
rated frequency.
49
Level-4 UF
protection
time
Specifies the level-4
underfrequency
protection duration.
ms
[50, 7200000]
50
Level-5 UF
protection
Specifies the level-5
underfrequency
protection threshold.
Hz
[0.85xFn, 1xFn]
Fn represents the
rated frequency.
51
Level-5 UF
protection
time
Specifies the level-5
underfrequency
protection duration.
ms
[50, 7200000]
52
Level-6 UF
protection
Specifies the level-6
underfrequency
protection threshold.
Hz
[0.85xFn, 1xFn]
Fn represents the
rated frequency.
53
Level-6 UF
protection
time
Specifies the level-6
underfrequency
protection duration.
ms
[50, 7200000]
Feature Parameters
Table 7-8
Parameter description
No.
Parameter
Description
Unit
Value Range
Remarks
1
LVRT
When the power grid
voltage is abnormally low
for a short time, the
inverter cannot disconnect
from the power grid
immediately and has to
work for some time. This is
called LVRT.
N/A
Disable
Enable
This parameter is set to
Enable
by default if
the German
BDEW-MV grid code
is selected.