Operation

3.1.1Operator Control Panel

The Operator Control Panel enables the operator to perform the following tasks:

Obtain a quick indication of operational status:

Is the critical bus OK?

Is the UPS system OK?

Is the battery available?

Is the bypass line available?

Monitor the power flow through the UPS system and monitor all meter readings:

Is the critical load being supplied power from the UPS system or bypass?

Are input, battery, and output voltage, frequency, and current readings at nominal levels?

How much battery time is still available during an outage?

Is the battery recharging after discharge?

Execute operational procedures:

Perform critical bus transfer/retransfer between the UPS and the bypass line.

Start-up and shutdown the UPS.

Shutdown the system instantly in the event of an emergency.

Access status reports and history files:

Obtain a complete listing of the present status of the UPS including input, output, and bat- tery voltage, frequency, and current readings, and any alarms that may be present.

Review a complete history report of all events leading up to and immediately after a fault con- dition.

Examine an archive listing of all alarm conditions that have occurred over a period of time.

Make adjustments to programmable parameters (access limited by Security Access function):

Set the date and the time functions.

Change the auto-dial phone number and the modem options.

Select the number of auto-retransfer attempts.

Make adjustments to the UPS output voltage before performing a manual load transfer.

3.1.2Navigation Buttons

The Navigation Buttons are located below the Display Screen.

Figure 4 Navigation buttons

MAIN MENU

 

 

MANUAL TRANSFER

 

 

 

 

BATTERY MANAGEMENT

STARTUP / SHUTDOWN

STATUS REPORTS

 

CONFIGURATION

 

SELECT

UP

DOWN

ALARM

RESET

ALARM SILENCE

ESCAPE

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Image 24
Liebert 30-130kVA manual Operator Control Panel, Navigation Buttons