Liebert Emerson NX UPS System - Manual (Page 72)

Operator Control Panel and Display
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7.3 Prompt (Pop-Up) Windows
The prompt window is displayed during the operation of the system to alert the user to certain condi-
tions and / or to require user confirmation of a command.
7.4 Dynamic Energy Flow Chart and UPS Help Screen
This screen displays a mimic diagram of the UPS that includes energy flow and status of isolation and
transfer switches. Press the “Help” key to activate this screen. Press again to toggle between this
screen and the main screen.
Figure 34 Help screen
Table 23 Prompt windows, meanings
Prompt Meaning
Transfer with interrupt, please confirm or cancel
Inverter and Bypass supplies are not synchronised and
any load transfer between the supplies will cause a brief
load interruption.
The load is too high to be transferred with interrupt
The total load must be less than the capacity of one unit
to allow a parallel system to perform an interrupted
transfer from bypass to inverter.
This Operation Leads to Output Shutdown, Confirm or
Cancel
No alternative supply is available and any Inverter Off
operation will cause the load to be de-energised.
This operation leads to inverter overload, confirm or
cancel
The turn-off this inverter will lead to the overload of
remaining inverter(s) in a parallel system.
Turn on more UPS to carry current load
The number of paralleled inverters already turned on is
insufficient to carry the existing load.
Battery will be depleted, confirm Battery Capacity test discharges the battery 100%
System self test finished - everything is ok. No action required
System self test finished - Please check the current
warnings.
Check “Current Records” window
Enter control password Required for Battery or UPS test (default = 12345)
Battery Self Test aborted, condition not met
Battery self-test condition is not enough. User should
check whether battery state is boost charging and
whether load level is greater than 20 percent.
Battery Refresh Charge aborted, condition not met
Boost charging condition is not enough, such as (No
battery, charger has failed, etc.).
F2 F3 F4 HELP F1
Help information
Select the current record window
Press help key back to main menu
Select the previous menu item