Handle Alarms
Topics in this
Section
This section contains the following topics:
• General Information
• Alarm Indication and Listing
• Analyze and Acknowledge Alarms Using the Web Tool
• View and Acknowledge Alarms Using the Operator Panel
General Information
Two Alarm
Levels
Alarms are generated when an abnormal condition occurs, either associated with the
pump or internal. For most monitoring channels, MAS uses two levels of alarms, A and
B. Alarms are categorized depending on how serious or urgent the condition is — this is
de
fi
ned during the setup.
This table describes the alarm levels:
Level
Description
A
Indicates a serious condition. The interlock relay (Go) opens to stop the
pump, the A-alarm relay is activated and indications are shown in red.
B
Indicates a less serious condition or is used as a warning level. The
pump is allowed to run (the interlock relay ‘Go’ remains closed), the
B-alarm relay is activated and indications are shown in yellow.
Active Alarm
An active alarm in the Active alarms list is a currently active alarm; that is, an alarm limit is
currently exceeded or there is an internal fault such as corrupt communications.
Alarm Indication and Listing
Indication and
Acknowledge-
ment Process
A new alarm is indicated with a
fl
ashing LED on the operator panel. If an active alarm
is reset/acknowledged, it turns into a
fi
xed light to indicate the acknowledgement by the
operator and that the condition is still abnormal. When the fault is
fi
xed and the condition
is back to normal, a repeated reset/acknowledge will terminate alarm indications and
set relays to their normal status.
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