7-8
Alarm Configuration
• LoadShedding: (RSM-8R8 Series Units Only) 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,
RSM-8R8 Series units can 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 RSM-8R8 Series unit can also return these user-selected
plugs to their prior status, when the temperature falls below the Alarm Clear
Threshold value. For more information, please refer to Section 7.2.1.
7.2.1. Over Temperature Alarms - Load Shedding and Auto Recovery
Note:PowerControlfunctionsareonlyavailableonRSM-8R8Seriesunits.
TheLoadSheddingfeatureisnotavailableonstandardTSMSeriesunitsor
standardRSMSeriesunits.
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 an
RSM-8R8 Series unit to automatically shut Off non-essential devices in order to reduce
the temperature 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 RSM-8R8 Series unit can also automatically "undo" the
effects of the Load Shedding feature when the temperature again falls to a user-defined
non-critical level.
Note:TheLoadSheddingconfigurationmenusforboththeInitialThreshold
AlarmandCriticalThresholdAlarmofferessentiallythesamesetofparameters,
buttheparametersdefinedforeachalarmareseparateandunique.Therefore,
parametersdefinedfortheCriticalThresholdLoadSheddingwillnotbeapplied
totheInitialThresholdAlarmandviceversa.
The Load Shedding configuration menus for both the Over Temperature (Initial
Threshold) alarm and the Over Temperature (Critical Threshold) alarm offer the following
parameters:
• Enable: Enables/Disables Load Shedding for the corresponding alarm. When
enabled, the RSM-8R8 Series unit will switch the user specified plugs whenever the
temperature exceeds the Alarm Set Threshold value. (Default = Off)
• PlugState: Determines whether the selected plugs/plug groups will be switched
On or Off when Load Shedding is enabled and the temperature exceeds the user-
defined Alarm Set Threshold. For example, if the Plug State is set to "Off", then the
selected plugs/plug groups will be switched Off when the Alarm Set Threshold is
exceeded. (Default = Off)
• AutoRecovery: Enables/Disables the Auto Recovery feature. When both Load
Shedding and Auto Recovery are enabled, the RSM-8R8 Series unit will return
plugs to their former On/Off state after the temperature falls below the Alarm Clear
Threshold value. This allows the RSM-8R8 Series unit to "undo" the effects of the
Load Shedding feature after the temperature has returned to an acceptable level.
(Default = Off)