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5.
Operation
Usage Depending on the Application (Alarm, Periodic Active Energy, Rolling Demand,
Operating Time, Password, etc.)
The following shows how to use the instrument depending on the application.
5.2.1. Upper/Lower Limit Alarm Display and Action
When the set upper/lower limit alarm value is exceeded, the display starts to blink and an alarm is output.
*For details on how to set the upper/lower limit alarm, refer to 3.8.
■Action for alarm
Alarm generating:
When the set alarm value is exceeded, the display blinks and alarm contact is closed.
*Note
Alarm cancellation: When an alarm is cancelled, the display turns to the normal mode and alarm contact is
open.
Note: When you set the alarm delay time, an alarm will generate if the set upper/lower limit alarm value is exceeded and
this situation continues for the alarm delay time.
Alarm reset
Measured value
method
Measured value
Automatic
Screen
(Auto)
Manual
Screen
(HoLd)
Note1: If measuring items of alarm generating are displayed on the screen, the digital value, unit (A, V, W, var, PF, Hz, %,
DM, and THD), and phase (1, 2, 3, and N) will be displayed according to the alarm status as the following table.
Alarm status
Alarm generating
Alarm retention
Alarm cancellation
Note2: When the backlight blinking for alarm is set to 'on', the backlight blinks at generating alarm.
Note3: On the Max/Min value screen, the present value, which is displayed at the middle line of digital display,
, and
or
Upper limit alarm value
＞
Lower limit alarm value
＜
and
or
blink
and
or
blink
(Alarm generating)
Digital value
Unit
Blink*
Blink
Light up
Blink
Light up
Light up
blink.
Measured value
Measured value
and
or
light up
(Alarm retention)
Phase
*When the phase of no alarm is
Blink*
displayed on the screen, it does not
Blink*
blink.
Light up
79
Upper limit alarm value
＜
Lower limit alarm value
＞
Normal display
Normal display
RESET
(Alarm cancellation)
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