Micromod MOD: 30ML Operation and Template Setup User Manual

Page 52

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MOD 30ML Multiloop Controller

OPERATION

3-20

3.13.3 Monitoring and Acknowledging Alarms

A dedicated alarm display provides data on each unacknowledged and active alarm. There
are six types of alarm displays (An example of each display type is shown on the following
pages):

• Input variable displays (Process, Remote Set-point, Feed Forward)
• Control output displays
• Set/Process deviation displays
• Data quality displays
• Combination of data quality and input variable displays
• Diagnostic displays

The operator is alerted to an alarm condition by the alarm light in the upper
right hand corner of the front panel.

Depending on instrument configuration, the light can flash or turn on steady
at the inception of an alarm condition, and a beeper can provide audible
indication that an alarm is present. To view alarm data and acknowledge
alarm conditions proceed as follows:


1. When the alarm light or beeper indicates an alarm condition, press the alarm scroll key to

access the alarm displays. Pressing the key repeatedly scrolls through a series of
displays covering all unacknowledged alarms and all acknowledged alarms which are
active (alarm condition still present). See Section 3.13.4 for the viewing sequence of the
alarm displays.


2. Press the ‘A' key to acknowledge an unacknowledged alarm. Refer to the examples for

acknowledgement details.


3. Press the alarm key to advance to the next alarm display, then view the data and

acknowledge the alarm as required.


4. If it is necessary to return to runtime prior to viewing all the alarms, press the R/L key

[RET] to immediately return to runtime.


5. Continue scrolling through alarm displays until [ALARM ] [END] appears on lines 1 and 2,

then proceed as follows:

• Press the R/L key to return to runtime.
• Press the alarm scroll key to repeat the alarm display sequence starting with the first

active alarm.


*

NOTE:

If the alarm scroll key is pressed when there are no active alarms,
[ALARM] [END]appears on lines 1 and 2 indicating that no alarms are
present. The R/L key [RET] is used to return to the runtime displays.

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