Western Telematic MPC-20VS16-3 - Manual (Page 123)

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Alarm Configuration
• Address 1, 2, and 3: These parameters are used to select which of the three email
addresses, defined via the "Email Messages" menu (see Section 5.9.11,) will receive
the email alarm notification messages generated by this alarm. The Address
parameters can be used to select one, or any combination of the addresses defined
via the Email Messages menu. (Default = All On.)
Note: If Email addresses have been previously defined, then the text under the
parameters will list the current, user defined email addresses.
• Subject: This parameter is used to define the text that will appear in the "Subject"
field for all email notification messages generated by this alarm. (Default = "Alarm:
Over Temperature (Initial)" or "Alarm: Over Temperature (Critical)".)
• Load Shedding: Provides access to a submenu, which is used to configure
and enable the Load Shedding feature for the Over Temperature alarms. When
Load Shedding is enabled and properly configured, the MPC will switch specific,
user-selected plugs On or Off whenever the temperature exceeds the Alarm Set
Threshold value. If the Auto Recovery feature is enabled, the MPC can also return
these user-selected plugs to their prior status, when the temperature falls below the
Alarm Clear Threshold value. For more information on the Load Shedding Feature
and Auto Recovery, please refer to Section 7.2.1.
7.2.1. Over Temperature Alarms - Load Shedding and Auto Recovery
In the case of the Over Temperature Alarms, the Load Shedding feature is used to switch
specific, user-defined plugs On or Off whenever the temperature exceeds the Alarm Set
Threshold value. This allows the MPC to automatically shut Off non-essential devices in
order to reduce the temperature being generated within the rack, or automatically switch
On devices such as fans or cooling systems in order to dissipate heat from the rack.
When the Auto Recovery feature is enabled, the MPC can also automatically "undo" the
effects of the Load Shedding feature when the temperature again falls to a user-defined
non-critical level.
When additional, optional remote MPC units have been connected to the AUX ports on
your local MPC unit, separate Load Shedding and Auto Recovery actions can also be
separately defined for each individual Local/AUX unit.
Notes:
• The Load Shedding Configuration Menus for both the Initial and Critical Over
Temperature Alarms offer essentially the same set of parameters, but the
parameters defined for each alarm are separate and unique. For example,
parameters defined for Over Temperature (Initial) Alarm Load Shedding will
not be applied to Over Temperature (Critical) Alarm Load Shedding and
vice versa.
• The Load Shedding Configuration Menus for the Text Interface and Web
Browser Interface differ slightly; in the Web Browser Interface the Local/
AUX setting is defined via the Over Temperature Alarm Configuration Menu,
whereas in the Text Interface, this setting is accessed via submenus of the
Load Shedding Configuration Menu.