Mitsubishi Electric ME96SSRA-MB User Manual page 36

3. Setting
3.8. Setting Menu 5: Pulse and Alarm Settings (Setting Upper/Lower Limit Alarm, Motor
②Alarm value 1
DISPLAY SET
③Alarm item 2 to 4
DISPLAY SET
④Alarm value 2 to 4
DISPLAY SET
⑤Alarm delay time
DISPLAY SET
⑥Alarm cancel method
DISPLAY
SET
Starting Current Mask Function, Pulse Output, etc.)
Set the alarm value for upper/lower limit alarm element 1. The following table shows
the setting range.
Measuring element
A, AN, DA, DAN upper limit
A, DA lower limit
V (L-N), V (L-L) upper limit
V (L-N), V (L-L) lower limit
W, var upper limit
W, var lower limit
DW, Dvar, DVA upper limit
PF upper limit
PF lower limit
Hz upper limit
Hz lower limit
Harmonic current total RMS value
N-phase harmonic current total
RMS value
Harmonic voltage total distortion
ratio
Note:W, var, DW, Dvar,DVA and var show the percentage for the maximum scale value
(±0 step).
A, AN, DA, DAN,
total RMS value shows the percentage for the CT primary current.
"V" shows the percentage for the VT primary voltage (or direct voltage).
(The "V" for 1-phase 3-wire is the percentage for
Alarm monitoring is executed using twice the value which set upper/lower limit
alarm for the 12-phase and 13-phase.)
Set the measurement element assigned to the upper/lower limit alarm items 2 to 4.
Elements that are set elsewhere cannot be set.
The setting method is the same as ①Alarm item 1
Set the alarm value for the upper/lower limit alarm items 2 to 4.
The setting method is the same as ②Alarm value 1
Set the alarm mask time for when you want to prevent a
momentary overload or noise alarm.
When this is set, an alarm is generated only when the alarm value
over the upper/lower limit alarm value for a longer time than the
delay time. On the setting screen, seconds are indicated by "s"
and minutes are indicated by "min".
0s 30s
5s 40s
10s 50s
20s 1min
Set the alarm cancel method at generation of alarm. (screen, relay)
Reset method
(Setting value)
Automatic When there is no alarm generation
(Auto) condition, alarm is automatically reset.
The alarm will continue even when the
Manual
alarm generated conditions no longer exist.
It is necessary to execute button operation
(HoLd)
to cancel the alarm.
Note: When all settings for ①Alarm item 1 and ③Alarm item 2 to 4
are set to "non," this setting will be skipped.
Setting range
5 to 100 to 120(%)
3 to 10 to 95(%)
25 to 110 to 135(%)
20 to 70 to 95(%)
-95 to 100 to 120(%)
-120 to 3 to 95(%)
5 to 100 to 120(%)
-0.05 to 1 to 0.05
-0.05 to -0.5 to 0.05
45 to 65(Hz)
45 to 65(Hz)
1 to 35 to 120(%)
1 to 35 to 120(%)
0.5 to 3.5 to 20.0(%)
Harmonic current total RMS value, N-phase harmonic current
2min
Note：
3min
When all settings for ①Alarm item 1
4min
and ③Alarm item 2 to 4 are set to "non",
5min
this setting will be skipped.
Description
(Refer to pages 71 and72)
35
Setting
step(Note)
1%
1%
1%
1%
1%
1%
1%
0.05
0.05
1Hz
1Hz
1%
1%
0.5%
phase to neutral voltage.
.
.