SmartLogger1000
User Manual
7 WebUI
Issue 12 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
187
No.
Parameter Description
Unit
Value Range
Remarks
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
[0.85 x Fn, 1 x Fn]
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
[0.85 x Fn, 1 x Fn]
Fn represents the
rated frequency.
53
Level-6 UF
protection
time
Specifies the level-6
underfrequency
protection duration.
ms
[50, 7200000]
54
Overfreque
ncy
protection
threshold
Specifies the grid
overfrequency protection
threshold.
Hz
50 Hz: 50.5 Hz,
51.0 Hz, 51.5 Hz, and
52.0 Hz
60 Hz: 60.6 Hz, 61.2
Hz, 61.8 Hz, and 62.4
Hz
N/A
55
Overfreque
ncy
protection
duration
Specifies the grid
overfrequency protection
duration.
s
0.5s, 1.0s, 1.5s, and 2.0s
N/A
56
Underfrequ
ency
protection
threshold
Specifies the grid
underfrequency
protection threshold.
Hz
50 Hz: 49.5 Hz,
49.0 Hz, 48.5 Hz,
48.0 Hz, 47.5 Hz, and
47.0 Hz
60 Hz: 59.6 Hz, 59.0
Hz, 58.4 Hz, 57.8 Hz,
and 57.2 Hz
N/A
57
Underfrequ
ency
protection
duration
Specifies the grid
underfrequency
protection duration.
s
0.5s, 1.0s, 1.5s, and 2.0s
N/A
58
AC
overvoltage
protection
threshold
Specifies the grid
overvoltage protection
threshold.
V
110.0 V, 112.5 V, 115.0
V, and 120.0 V
N/A
59
AC
overvoltage
protection
duration
Specifies the grid
overvoltage protection
duration.
s
0.5s, 1.0s, 1.5s, and 2.0s
N/A