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SDM-090(P)
Digital Multiplexer
Chapter 7. Occurrence and handling of alarm, loss
1.Alarm occurrence conditions
The following events occur if alarm occurs since the sensor is connected to the alarm
input terminal on the backside:
1) Warning sounds (if buzzer turns "ON").
2) Alarm information (date and time when alarm occurs) is recorded on the alarm
list.
3) "RESET" LED blinks.
4) The alarm output (HOT, COLD) signal is active for the alarm hold time.
5) The record times of the channel that alarm occurs increase.
6) Screen is converted to the channel that alarm occurs.
7) Display character of "ALARM" or "A" appears (if the alarm information turns
"ON").
8) Alarm continues for the alarm hold time that is set in the program mode.
Alarm holds time: Time performing alarm operation after recognizing alarm.
2.Alarm release
The alarm status is released if pressing the "RESET" button when alarm occurs or
the alarm holds time setting passes.
3.Screen conversion
1) Single alarm: The occurrence channel appears on monitor in the form of full
screen.
2) Multiple alarm: Display the occurrence channel as the division screen
depending on the occurrence numbers.
Example) When alarm occurs at the same time in CH1, CH7, CH9 Display
CH1, CH7, CH9 on the 4-division screen.
4.Alarm record
Perform the alarm weight value record in the chapter 6.
7-1
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