Set-Up Menu 5 (Alarm Set-Up) - Mitsubishi Electric ME96NSR Operator's Manual

Settings (Continued)

■ Set-up Menu 5 (Alarm Set-up)

This sets the upper and lower limit alarm. The upper and lower limit set value mark "
four items can be set.
In the operation mode, press
+ –
,
Set-up menu
DISPLAY SET
+ –
,
① Alarm item 1
DISPLAY SET
+ –
,
② Alarm value 1
DISPLAY SET
to
+ –
,
③ Alarm item 2 to 4
DISPLAY SET
④ Alarm delay time,
+ –
,
delay time of
max/min value
DISPLAY SET
⑤ Alarm cancel
+ –
,
method
SET
+ –
,
Set-up menu
10
and simultaneously for 2 seconds or more, and the following operation becomes available.
SET RESET
Set the set-up menu number to "5".
② Set the alarm value of alarm item 1.
The set-up range is shown below.
Alarm item
A, DA, A , DA upper limit
N N
A,DA lower limit
V upper limit
V lower limit
W, var upper limit
W, var lower limit
PF upper limit
PF lower limit
Hz upper limit
Hz lower limit
Harmonic current total RMS value upper limit
Harmonic voltage total distortion ratio upper limit
Note 1: The upper and lower limit alarm mark by the bar graph is displayed in the step of about 5%
though the digital value can be set in the above-mentioned step on A, DA, V, W and var.
However, the alarm is generated with the accuracy of the digital value.
DA: current demand
Note 2: V alarm value is set according to the value of primary voltage (direct voltage).
A, DA, W, and var is set for value of rated scale.
③ Set the upper and lower limit alarm item 2 to 4 (AL2, AL3, AL4) in the same method.
④ Set the alarm delay time.
If the condition of limit exceeding continues for more than the delay time,
the alarm generates.
And if it does not continue during this time, the maximum/minimum value
is not updated.
⑤ Set the alarm cancel method at generation of alarm. (screen, relay)
Method Cancel method
Automatic When there is no alarm generating condition,
(Auto) alarm is automatically reset.
Manual Alarm is reset by pressing RESET .
(HoLd) Alarm continues until RESET is pressed.
Please refer to page 19 for details.
According to the set-up diagram (page 6), save the changed contents or continue to the other set-up menu.
(blinking)" is displayed on the bar graph. From the display items,
① Set the alarm item to be allowed to measurement items.
Three phase 3-wire
non
A upper limit
A lower limit
Demand A upper limit
Demand A lower limit
V upper limit
(L-L)
V lower limit
(L-L)
W upper limit
W lower limit
var upper limit
var lower limit
PF upper limit
Example display when A
PF lower limit
upper limit is set to 100%
Hz upper limit
Hz lower limit
Set-up range Step
Harmonic current total
5 to 100 to 120% 1%
RMS value
Harmonic voltage total
3 to 10 to 95% 1%
distortion ratio
25 to 110 to 135% 1%
20 to 70 to 95% 1%
–95 to 100 to 120% 1%
–120 to 3 to 95% 1%
–0.05 to 1 to 0.05 0.05
–0.05 to –0.5 to 0.05 0.05
45 to 65Hz 1Hz
Note 1: A measurement item that is not selected in the display pattern can be selected.
Note 2: The alarm of W, var, and PF is judged from the total RMS value.
45 to 65Hz 1Hz
The upper alarm of A and DA is judged from the phase of 1, 2, 3 and N.
5 to 35 to 120% 1% The lower alarm of A and DA is judged from the phase of 1, 2 and 3. (N is excluded.)
Note 3: The alarm of the total distortion ratio is judged from the phase of 1, 2 and 3.
0.5 to 3.5 to 20% 0.5%
(N is excluded.)
0 seconds 30 seconds
5 seconds 40 seconds
10 seconds 50 seconds
20 seconds 1 minute
Three phase 4-wire
non
A upper limit
A lower limit
Display of non upper
A upper limit
N
and lower limit alarm
Demand A upper limit
Demand A lower limit
Demand A upper limit
N
V upper limit
(L-N)
V lower limit
(L-N)
V upper limit
(L-L)
V lower limit
(L-L)
W upper limit
W lower limit
var upper limit
var lower limit
PF upper limit Display when A upper limit is set
PF lower limit to upper and lower limit alarm
Hz upper limit
Hz lower limit
Harmonic current total RMS value
Harmonic current phase N RMS value
Harmonic voltage total distortion ratio
✽ Refer to page 19 for details.
2 minutes
3 minutes
4 minutes
5 minutes
Display of automatic
reset method
Display of manual reset
method
✽