Operator Control Panel and Display

7.3Prompt (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.

Table 23 Prompt windows, meanings

Prompt

Meaning

 

Inverter and Bypass supplies are not synchronised and

Transfer with interrupt, please confirm or cancel

any load transfer between the supplies will cause a brief

 

load interruption.

 

The total load must be less than the capacity of one unit

The load is too high to be transferred with interrupt

to allow a parallel system to perform an interrupted

 

transfer from bypass to inverter.

This Operation Leads to Output Shutdown, Confirm or

No alternative supply is available and any Inverter Off

Cancel

operation will cause the load to be de-energised.

This operation leads to inverter overload, confirm or

The turn-off this inverter will lead to the overload of

cancel

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

Check “Current Records” window

warnings.

 

Enter control password

Required for Battery or UPS test (default = 12345)

 

 

 

Battery self-test condition is not enough. User should

Battery Self Test aborted, condition not met

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.).

 

7.4Dynamic 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

 

 

Help information

 

 

 

Select the current record window

 

 

Select the previous menu item

 

Press help key back to main menu

 

F1

F2

F3

F4

HELP

 

 

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Liebert NX UPS System Prompt Pop-Up Windows, Dynamic Energy Flow Chart and UPS Help Screen, Prompt windows, meanings