Dell Metered Rack Power Distribution Unit User's Manual
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Brand: Dell
Category: Power distribution unit
Type: Operation & user’s manual for Dell Metered Rack Power Distribution Unit
Pages: 90 (1.09 Mb)
Download Dell Metered Rack Power Distribution Unit Operation & user’s manual
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LCD Operation
Table 8. Performance Menu Selections (Fortsetzung)
Option DescriptionPerformance
Submenu
Power
Active Power Provides the calculated value of the overall input,
displayed in watts (W)
Apparent Power Provides the calculated value of the overall input,
displayed in Volt-amperes (VA)
Instantaneous Headroom Watts Provides the watts capacity remaining
NOTE: When the rPDU is in an overload state, this value
is always 0.
Peak Headroom Watts Provides the remaining watts available to support the
load at peak demand
Peak Consumption Watts Provides the peak power demand on the rPDU with time
and date stamp of the most recent data update
Cumulative kWh Consumption Provides the total kWh usage with time and date stamp
of the most recent data update
NOTE: This value accumulates. If this value reaches the
maximum value for a 32-bit number, do not reset.
Environment
No sensors connected Displays dashes on both Temperature and Humidity
screens.
Only Temperature sensor connected Displays the temperature in °C on the Temperature
screen. Displays dashes on the Humidity screen.
Temperature and Humidity sensors
connected
Displays the temperature in °C on the Temperature
screen. Displays the humidity percentage on the
Humidity screen.
Measured and Calculated Meters
The rPDU operating status information provided by the Performance menu selections is derived from a series of
measured and calculated meters. See Table 9 for descriptions of measured and calculated meters.
Table 9. Measured and Calculated Meters
Meter Unit Description
Input Voltage
Volts (V) Present voltage measured at the 3 f input of the rPDU
Input Frequency Hertz (Hz) Present frequency measured at the input of the rPDU
Input Current Amps (A) Present current measured at 3 f input of the rPDU
Input Watts Watts (W) Calculated value of the overall input W of the rPDU (active power)
Input Volt-amperes Volt-amperes (VA) Calculated value of the overall input VA of the rPDU (apparent power)
Instantaneous Headroom
Watts
Watts (W) Present W capacity remaining for the rPDU
NOTE: This value is an absolute value calculated from the W rating of
rPDU deducted from the W being consumed.
Peak Headroom Watts
(with time stamp)
Watts (W) Remaining W available to support the load at peak demand
NOTE: This value is based on the lowest value set for that Instantaneous
Headroom Watts. The value can be reset from the LCD or the internal
Dell Network Management Card (NMC).