Dell Metered Rack Power Distribution Unit User's Guide Page 38
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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).
- User's Guide 1
- Notes and Warnings 2
- Table of Contents 3
- 5 LCD Operation 4
- 6 Serial Interface Operation 4
- 7 Web Interface Operation 5
- Introduction 7
- Physical Description 9
- Strain Relief Brackets 10
- Ground Bonding Point 10
- Delta and Wye Configurations 10
- Attached Input Connections 11
- Circuit Breakers 11
- S Dry contact sensor 12
- Finding Information 13
- Safety Warnings 14
- Installation 15
- Inspecting the Equipment 16
- Checking the Accessory Bag 16
- Preparing for Installation 17
- Installing Deep Mounting Pegs 18
- Attaching the Ground Wire 21
- Starting the rPDU 22
- Shutting Down the rPDU 22
- Front Panels 23
- Figure 12. DELLM0002 24
- Figure 13. DELLM0003 24
- Figure 15. DELLM0005 25
- Figure 16. DELLM0006 26
- Figure 17. DELLM0007 26
- External Signaling Ports 27
- Serial Port 28
- Monitoring Ports 29
- Dry Contact Sensor (Optional) 30
- LCD Operation 31
- Input Status Screen 33
- Main Menu Selections 34
- Performance Menu 35
- time and date stamp 38
- Alarms Menu 39
- Event Log 42
- System Info 43
- Settings 43
- Serial Interface Operation 50
- Nomenclature 51
- 4 Go to Step 9 52
- (Three-phase rPDUs only) 56
- Log out of the serial CLI 58
- Web Interface Operation 66
- Accessing the Web Interface 68
- Configuring User Access 69
- Setting the Date and Time 70
- Configuring DPI Attributes 73
- 3 Click Save 76
- Viewing Present rPDU Status 81
- Monitoring Input Statistics 83
- Managing Environment Sensors 86
- Humidity 87
- Viewing Event and Data logs 88
- Clearing Logs 89
- To restart the rPDU NMC: 90
- This procedure is completed 90
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