Section 8. Engines & Fire Protection
Eclipse 5OO Systems Manual
Copyright
© — Eclipse Aviation Corporation
174
Version 2.0 April 2007
8.6 Normal Operations
8.6.1 Engine Start
Engine start is automatically controlled by the ACS and FADEC. The start sequence
is initiated by pushing in the engine start switch on the engine start switch panel and
turning it to ON/START. The automatic engine start sequence is as follows:
START/MOTORING MODES
Table 19. Start/Motoring Modes
Starting
Motoring
On-Ground
Assisted
In-Flight Assisted
Wet
Dry
AUTOMATIC START ABORT
The FADEC provides automatic start abort functionality for failed ground starts based
on:
1. ITT
Exceedance
2. No
light-off
3. Hung
start
4. N2 Below ‘Fuel on” Threshold
5. Loss of required inputs/outputs for FADEC during engine start
ON GROUND START SEQUENCE
1. Engine
Start
Switch-- ON/START
2. Electrical system is configured for start.
a. Bus
Tie
contactor- CLOSE
b. Right Battery Bus contactor- CLOSE
c. L and R Forward Circuit Breakers/Contactors- OPEN
3. N2- 3 to 10%
a. Starter ON
b. Fuel Shutoff valve- OPEN
c. Electric Fuel Pump- ON
d. Igniters
ON
e. ITT Redline-
INCREASES TO 850°C
4. N2-
15%
a. Oil Pressure rise