Date post: | 25-Dec-2014 |
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Technology |
Upload: | jason-abston |
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MetasysAlarms
Metasys AlarmsAlarms give notification of faults within the system such as• Pumps not running when commanded• Supply / return fans not running when
commanded• Temperatures higher than normal• Temperatures lower than normal• Pressure higher than normal• Pressure lower than normal• Status of Safety devices
Warning NotificationA warning is indicated by a BLUE exclamation
point
Alarm NotificationAn alarm is indicated by a RED exclamation point
Three Types of Alarms• Command / Status
o When the status of an item does not match the command
• Safety deviceo Low Limito High Pressure
• Analogo Temperature to high or lowo Pressure to high or low
Alarm Popup
Alarm SetupRight Click the item and select “Show Extensions”
Extension ScreenSelect “New” beside the alarm option.
Select AttributeThe correct item should already be selected. Press
“Next”
Importance of Correctly Naming an
Alarm
Alarm ConfigurationAllows the setting of alarm parameters• Name• Time delay• Command reference• Display text• Normal state of input• High and low range• High and low warning
Alarm ConfigurationFor Status Command & Safety Device Alarms
Alarm ConfigurationFor Analog Alarms
Command ReferenceSelect the Command Point of the Item not the
status
Summary Screen
Auto Alarm ShutdownAlarm Shutdown allows us to automatically turn off unnecessary alarms such as: • High water temp on chilled water system when
the system is not in use• Zone temperature alarms when the space is
unoccupied
Setup of Auto-Shutdown
Insert the “Auto Shutdown” object under building
device
Name Auto-ShutdownPick a name that associates it with the item it
controls
Auto-Shutdown Configuration
Auto-Shutdown Control
The Auto-Shutdown Control point is the item used to turn off the alarms. Examples include:• Using main chill water system enable to shut
down high temperature alarms when system is off• Using VAV occupancy command to shut down
high or low temperature alarms when room is unoccupied
Auto-Shutdown Control
Point that turns off alarm such as chill water
system enable
Dependent ListThe dependent list is a list of items with alarms that will have the alarms disabled depending upon the condition of the Auto Shutdown Control Point. Examples include:• High temp alarms on chill water system when
system isn’t being used• High or low space temperature when VAV or AHU
is unoccupied
Dependent ListItems with alarms that are to be shut down
Questions?