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The records include maximum 9 analogue signals (I a , I b , I c, I e , I se , V a , V b , V c , V 0(e) ), 32 binary
signals and the dates and times at which recording started. The binary signals and their names can
be set by RSM100.
The LCD display only shows the dates and times of disturbance records stored. Details can be
displayed on a PC. For how to obtain disturbance records on the PC, see the PC software
(RSM100) instruction manual.
The recording time is can be set between 0.1 and 60.0s. If the setting value more than maximum
recording time is input, the time is set the maximum recording time. The pre-fault recording time
(pre-trigger time position) can be set 0 to 100% of the recording time setting. After trigger, the
next trigger is not set during the pre-trigger time.
When the memory for disturbance recording will be full, user can select either "OW" (overwrite)
or "SAT" (saturation: do not overwrite). In the "OW" mode, when the memory is full, new
disturbance record is overwritten on the oldest one. If "SAT" mode is selected. The recording is
stopped and the signal "D.REC_FULL" (Signal No.:1456) becomes ON.
The number of records stored depends on the recording time. The approximate relationship
between the recording time and the number of records stored is shown in Table 3.4.2.
Sampling number of analog input can be set 24 or 48 per cycle. When 48 selected, the number of
records stored will be a half in comparison with 24.
Note: If the recording time setting is changed, the records stored so far are deleted.
Table 3.4.2 Recording Time and Number of Disturbance Records Stored ("SAT" mode)
Recording time
Sampling number
50Hz
60Hz
Settings
The elements necessary for disturbance recording and their setting ranges are shown in the table
below.
Element
Range
AI sampling
24 / 48
OP Mode
OW / SAT
Record time
0.1-60.0s
Trig pos
0-100%
OC
0.5-250.0 A
(0.10-50.00 A
EF
0.5-125.0 A
(0.10-25.00 A
SE
0.025-0.125 A
(0.005-0.025 A
NOC
0.5-10.0 A
(0.10-2.00 A
OV
10.0-200.0V
UV
1.0-130.0V
ZOV
1.0-130.0V
0.1s
1.0s
24
40
18
48
40
9
24
40
15
48
40
7
Step
Default
24
OW
0.1s
1.0
1%
50%
0.1 A
10.0 A
0.01 A
2.00 A) (*)
0.1 A
3.0 A
0.01 A
0.60A)
0.001 A
0.100 A
0.001 A
0.020 A)
0.1 A
2.0 A
0.01 A
0.40 A)
0.1 V
120.0 V
0.1 V
60.0 V
0.1 V
20.0 V
⎯
⎯
139
2.0s
3.0s
5.0s
9
6
3
4
3
1
7
5
3
3
2
1
Remarks
Analogue input sampling number
Overwrite or saturation selection
Recording time
Pre-trigger position
Overcurrent detection
Earth fault detection
Sensitive earth fault detection
Negative sequence overcurrent detection
Overvoltage detection
Undervoltage detection
Zero sequence overvoltage detection
6 F 2 S 0 8 4 2
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