Eclipse 500 System Manual page 253

Section 10. Electrical
10.6 Normal Operations
10.6.1 Ground Operation
BATTERY POWER
With both battery switches OFF, the hot battery bus provides power to the cabin
overhead and entry lights and to the baggage compartment lights. With battery
power only, these lights are on timers to prevent battery depletion.
Dome light ....................................................................................................... 5 minutes
Baggage compartment light ............................................................................ 5 minutes
If the START BATT switch is placed to ON with no external power, the bus tie
contactor automatically closes, allowing the start battery to power all buses. If the
SYS BATT switch is then placed to ON, the systems battery is paralleled with the
start battery. Ground operation on battery power should be of limited duration to
prevent battery depletion.
When the start or system battery is discharging, a START or SYS BATT DISCHARGE
caution message appears.
EXTERNAL POWER
All buses may be powered by external power. Both battery switches must be in the
ON position for the external power contactor to close. With external power and both
battery switches ON, external power also charges both batteries.
The green EXT POWER light on the left switch panel indicates that good external
power (correct polarity and voltage) is available for use. The states of the external
power contactor or battery switches have no effect on the external power light.
Version 2.0 April 2007
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
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