MAIN PWR

• MAIN PWR - Connects external Power or the Main generator to the Electrical system and also enables the standby generator.
• BATT - Connects aircraft Battery to the battery buses, disconnects main generator or external power, resets main generator and disables standby generator.
• OFF - Disconnects main generator from electrical system and disables standby generator.

CAUTION RESET
Resets ELEC SYS caution light and clears Master Caution light. Resets main and standby generators. Resets overload protection unit for the nonessential ac bus and the nacelle ac bus.

Status Lights

• FLCS PMG - FLCS PMG is not supplying power to any FLCS branch.
• MAIN GEN - Indicates that external power or Main Generator is not connected to one or both nonessential ac buses.

Status Lights

• STBY GEN - Indicates Standby Generator power is not available.
• --- - Blank.

Status Lights

• EPU GEN - Indicates the EPU has been commanded ON, but the EPU generator is not providing power to both essential ac buses.
• EPU PMG - Indicates the EPU has been commanded ON, but EPU PMG power is not available to all branches of the FLCS.

ACFT BATT

• TO FLCS - Indicates battery bus is supplying power to one or more FLCS branches and voltage is 25V or less.
• FLCS RLY - Indicates that voltage on one or more of the four FLCC branches connected to the aircraft battery is inadequate (below 20V) or that one or more FLCS branches are not connected to the battery.

ACFT BATT
Indicates aircraft battery Failure.