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7-3
Alarm Configuration
Note that the configuration menus for all four types of Over Current Alarms offer
essentially the same set of parameters, but the parameters defined for each alarm are
separate and unique. Therefore, parameters defined for a Critical Alarm will not be
applied to an Initial Alarm and vice versa.
All four types of Over Current alarms offer the following parameters:
• Trigger Enable: Enables/Disables the trigger for this alarm. When Disabled, this
alarm will be suppressed. (Default = On.)
Note: To cancel an alarm without correcting the condition that caused the
alarm, simply toggle the Trigger Enable parameter Off and then back On again.
• Alarm Set Threshold: The trigger level for this alarm. When current load exceeds
the Alarm Set Threshold, the MPC can send an alarm (if enabled) and/or begin load
shedding (if enabled.) Note that the Alarm Set Threshold can be entered either in
Amps, or as a percentage of maximum capacity. For more information on Load
shedding, please refer to Section 7.1.1.
(Defaults: Initial Alarms = 80%; Critical Alarms = 90%.)
• Alarm Clear Threshold: Determines how low the current load must drop in order
for the Alarm condition to be cancelled and for load shedding recovery (if enabled)
to occur. The Alarm Clear Threshold can also be entered in either Amps or as
a percentage of maximum capacity. For more information on Load Shedding
Recovery, please refer to Section 7.1.1.
(Defaults: Initial Alarms = 70%; Critical Alarms = 80%.)
Note: In the Text Interface, values for the Alarm Thresholds are set using two
separate parameters; one is used to enter the threshold in Amps, and the other
is used to enter the threshold as a percentage of capacity. In the Web Browser
Interface, you can choose Amps or percentage using the drop down menu to
the right of each parameter.
• Resend Delay: Determines how long the MPC will wait to resend an email
message generated by this alarm, when the initial attempt to send the notification
was unsuccessful. (Default = 60 Minutes.)
• Notify Upon Clear: When this item is enabled, the MPC will send additional
notification when the situation that caused the alarm has been corrected. For
example, when Notify Upon Clear is enabled, the MPC will first send notification
when it detects that current consumption has exceeded the trigger value, and then
send a second notification when it determines that the current consumption has
fallen below the trigger value. (Default = On.)
• Email Message: Enables/Disables email notification for this alarm. (Default = On.)
Note: The Email Message parameter offers four different options: On, Off, On
(Copy to All Triggers) or Off (Copy to All Triggers). If either of the "Copy to All
Triggers" options is selected, then email notification for all other alarms will be
switched On or Off as indicated by this parameter. For example, If "Off (Copy
to All Triggers)" is selected, then Email notification will be disabled for all other
alarms too.