TM 1-1520-238-T-6
9–73
9–6.
CONTROLS AND INDICATORS (cont)
9–6
Table 9–1.
Electrical System Controls and Indicators (cont)
Pilot ELEC PWR Panel
SWITCH/INDICATOR
POSITION
FUNCTION
GEN 1 switch
GEN 1
Deenergizes ac generator 1 from associated bus and
resets GCU 1 fault sensing logic.
OFF/RESET
Energizes ac generator 1.
TEST
Press momentarly to test ac generator 1 output without
connecting associated bus.
GEN 2 switch
GEN 2
Energizes ac generator 2.
OFF/RESET
Deenergizes ac generator 2 from associated bus and
resets GCU 2 fault sensing logic.
TEST
Press momentarly to test ac generator 2 output without
connecting associated bus.
BATT/EXT PWR
3-position toggle switch
BATT
Energizes battery relay to connect the battery to the dc
emergency bus.
OFF
Deenergizes battery relay circuitry.
EXT PWR
Enables electrical connection of external power to the bus
system if voltage, frequency, and phase sequence are
correct.
EXT PWR RESET
momentary contact
pushbutton switch
RESET
Press to reset external power monitor fault sensing logic.
M69-047A
GEN 1 SWITCH
GEN 2 SWITCH
EXT PWR RESET SWITCH
BATT / EXT PWR
SWITCH
Pilot ELEC PWR Panel
