Liebert Distribution Monitoring LDM - Manual (Page 24)

Operation
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5.4.4 Main Breaker Status
The Main Breaker Status area displays RMS current, percent load (PCT), total harmonic distortion
(THD), crest factor (CF), line-to-line voltage (VLL-RMS), line-to-neutral voltage (VLN-RMS), instan-
taneous power (Power), VA and power factor (PF) for each input phase. If any phase voltage or cur-
rent is in alarm, the associated field displays white text with a red background.
The metered energy usage for the panel is also displayed in kilowatt hours (kWh), as shown above. To
clear all metering information, click the Reset All kWh button.
5.4.5 Breaker Status
The Breaker Status area displays detailed status for every branch or subfeed breaker on the selected
panel. The information may appear in a table or as icons, depending on the whether the Table or
Icons button is active (see 5.4.6 - Mode Buttons).
The example below shows the table format with details for each breaker: type and rating, percent
load, individual phase current in amps (I1, I2, I3), power, apparent power (VA), power factor (PF) and
accumulated kilowatt hours (kWh.)
5.4.6 Mode Buttons
Mode buttons at the bottom of the Monitor window allow users to download Monitor readings to a file,
toggle the display between branch and subfeed breakers, toggle between table and icon views of
breaker status data and view the Event Log. Additionally, Emerson Network Power technical person-
nel may control the auto-zero function if the diagnostic registry key is installed.
!
CAUTION
Exercise care before using the Reset All kWh button, which resets the kWh usage for the
main breaker as well as all branch breakers and subfeed breakers on the panel.
Table 8 Monitor mode buttons
Button Function
Dump Converts the Monitor readings into a spreadsheet format (.csv file format).
Subfeeds/Breakers
Toggles between the subfeed and branch breaker displays. The button label changes
when the display is changed.
Icons/Table
Toggles between the tabular and icon views. The button label changes when the display is
changed.
Events Displays the Event Log dialog box.
Auto-Zero
(not shown above)
Viewable only if the diagnostic registry key has been installed on the PC. Used by Emerson
Network Power technical personnel for diagnostic purposes only.
Metered energy usage for the panel
Subfeeds/Breakers
button
Icons/Table
button