Black Box MPSH16-D20-120V 用户手册

OUTLET MANAGED PDU

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To configure the Outlet Managed PDU’s Alarm functions, access the command

mode using a password that allows Administrator level and then activate the Alarm

Configuration menu (in the Text Interface, type /AC and press [Enter]; in the Web

Browser Interface, click on the "Alarm Configuration" link.)

7.1.

The Over Current Alarms

The Over Current Alarms are designed to inform you when current consumption

reaches or exceeds user-defined levels. Depending on the specific Outlet Managed

PDU model, Outlet Managed PDUs can have up to four Over Current Alarms (two

sets of two alarms):

• The Over Current Line (Initial) Alarm

• The Over Current Line (Critical) Alarm

• The Over Current Branch (Initial) Alarm

• The Over Current Branch (Critical) Alarm

Notes:

• The Line Alarms are not available on some Outlet Managed PDU

models.

• The parameters that are defined via the Over Current (Initial and

Critical) Alarm Configuration menus will be applied to both Over
Current Line Alarms and Over Current Branch Alarms.

• The Outlet Managed PDU does not include separate configuration

menus for the Line and Branch Overcurrent Alarms. Parameters
that are defined via the Over Current Alarm configuration menus
will be applied to both Branch and Line (if present) Alarms.

The Line alarms monitor the load on the input line, and are only available on single

input units, whereas the Branch alarms monitor the load on each branch circuit

breaker.

The Initial alarms are used to provide notification when the level of current

consumption reaches a point where you might want to investigate it, whereas the

Critical alarms can provide notification when the level of current consumption

approaches the maximum allowed level. The trigger levels for the Initial alarms are

generally set lower than the trigger levels for the Critical alarms.

If the user-defined trigger levels for current load are exceeded, the Outlet Managed

PDU can automatically shut off power to non-essential devices ("Load Shedding")

in order to decrease current load. After Load Shedding has taken place, the Outlet

Managed PDU can also restore power to the non-essential devices when current load

drops to user-defined acceptable levels. For more information on Load Shedding,

please refer to Section 7.1.1.