Thomas & Betts 20 Operation, External AC Power, Front Panel Controls and Indicators, Invert Mode

OPERATION

The Freedom Inverter/Charger provides 120 volt AC power from auxiliary DC batteries, automatic battery charging and automatic AC transfer switching between an external AC source and inverter mode.

External AC Power

When external AC power is available, the 3-stage battery charger, transfer switching, and Power Sharing automatically function.

When external AC power is not available and the INVERT switch is ON (either through the auxiliary switch or the INVERT button on the remote), the inverter will automatically turn ON. If the INVERT switch is OFF (the INVERT LED will not be illuminated), the inverter will be OFF.

If installed with the Remote Control Panel or Link Instrumentation, the unit will be set up and controlled from the remote. Refer to the remote manual for more information.

Front Panel Controls and Indicators

INVERT MODE

The INVERT push-button switch is located on the front of the unit and has two functions:

•Turn the inverter ON/OFF and reset after a fault condition. Pressing the INVERT switch turns the inverter ON. The green INVERT LED will be ON when the inverter is inverting.

When the inverter is ON, pressing the INVERT switch turns the inverter OFF.

INVERT

CHARGE

Freedom 20D (Dual Output)

•Battery type setup. To enter the battery type select mode, press and hold the INVERT switch for five seconds. The status LEDs will change from indicating status information to indicating battery type. The selection of the battery type is made with the Charge switch.

Turning the INVERT OFF will reduce

battery power consumption to a very low level. This is recommended if the unit will not be used for an extended period of time.

CHARGE MODE

The CHARGE push-button switch has two functions:

•Turn the charger ON and OFF If external AC is present, pressing the CHARGE switch will turn the charger ON. The green CHARGE LED will be ON when the charger is charging. When the charger is ON, pressing this switch will turn the charger OFF.

•Select the battery type After holding the INVERT switch for 5 seconds, press the CHARGE switch to select the battery type.

One of the four LEDs will rapidly blink indicating the present battery type setting. Press the CHARGE switch again to change the battery type. Continue to press until the desired battery type is selected. If the CHARGE switch is not pressed for 5 seconds, the unit will return to normal operation and the battery type selection will have been made.

When the 12 volt input to the unit is disconnected, the battery type setting is stored in non-volatile memory. When the unit is reconnected, the battery type selection conveniently returns to the setting.

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Part No. 90-0123-00 Libertycombi.p65 10/26/98