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Emerson Network Power M222S Руководство пользователя
The characteristics of 4 alarm categories are given in the following table:
Red alarm
indicator of
Alarm levels
controller and
system
CA (critical
alarm)
MA (major
alarm)
OA (observation
alarm)
No alarm
Note:
1. The alarm levels of temperature sensor disconnected alarm and temperature sensor failure alarm, and the
corresponding relay output cannot be set through the LCD. The alarm levels of these two alarms and the
corresponding relay are the same with those of the high temperature alarm setting.
2. If the analog alarm has two levels of alarm thresholds, and if these two alarm thresholds are set to the same value,
then the second level will be cancelled and the first level of the alarm will be displayed in LCD. For example: If the
alarm threshold of 'high temperature 1' is set to the same with the threshold of 'high temperature 2', and if this
threshold is set to 40 deg C, then when the temperature exceeds 40 deg C, the system will only issue 'high
temperature 1 alarm', and will not issue the 'high temperature 2 alarm'.
In the alarm level setting submenu, you can also set the output relay no. for the corresponding alarm.
Alarm control menu
For the submenu of 'AlmVoice' of alarm control menu, you can set it to 'Open'(audible alarm is enabled) or 'Close' (no
audible alarm), and you can also set the time of audible alarm and the time can be '3min', '10min', '1h' and '4h'.
For the submenu of 'Block Alarm', you can set 'Y' or 'N' to select whether the alarm should be blocked or not.
For the submenu of 'Clear', you can select 'History', 'ECOFail', 'Maintain', 'ShortTest', 'TestFail' ,'Rect Lost' 'Rect
Commb' and 'Rect Not respond' to clear corresponding alarm.
Table 3-3 characteristics of 4 alarm categories
Yellow alarm
indicator of
controller and
system
On
On
On
Off
Off
LCU+ Series Controller User Manual
Chapter 3 Operation
Alarm buzzer
Alarm report
On
Yes
On
Yes
Off
No
Off
No
15
Remark
Alarm report is
enabled
Alarm report is
enabled