Operation

Figure 82 Manual transfer / retransfer screen when transfer is not allowed

MANUAL TRANSFER / RETRANSFER

BYPASS

NOT OK

INVERTER

OK

INTERNAL BYPASS SWITCH

NORMAL

EXT. MAINT. SWITCH

ON-LINE

INVERTER

IN SYNC

TRANSFER NOT ALLOWED

OK

EXIT

In the figure above, the message “TRANSFER NOT ALLOWED” will be flashing.

3.3.7Battery Management

The Battery Management screens display information on battery self tests, battery equalization, bat- tery temperature, and battery cycle monitoring. This information enables the operator to immediately see the effects of load shedding on time remaining and to accurately assess remaining power resources. The Battery Management screen is accessed from the Main Menu.

Figure 83 Battery management screen

BATTERY MANAGEMENT

BATTERY TEST

BATTERY EQUALIZER

BATTERY TEMP COMPENSATION CHARGE

BATTERY CYCLE MONITOR

BATTERY TIME REMAINING

CANCEL

SAVE & EXIT

Battery Test

The Battery Test screen allows the Operator to select between Auto Test and Manual Test.

Figure 84 Battery test screen

BATTERY TEST

MANUAL TEST

LAST BATTERY TEST: BATTERY TEST PASSED

EXIT

The auto battery self test can be enabled / disabled from the Battery Test Screen. It is performed unattended by programming Time, Date, Test Cycle and Test Duration in Battery Self Test Screen. Selecting MANUAL TEST from the Battery Test screen will perform an Operator-initiated test.

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Liebert 30-130kVA manual Battery Management, Battery Test