Embraer EMB145 Operation Manual page 1888

POWERPLANT
AIRPLANE
OPERATIONS
MANUAL
STARTING BY USING GROUND EQUIPMENT
The system is pressurized by pneumatic ground equipment connected
to start the engine 2.
The SCV energizes to open when a starting switch ground signal
energizes the engine 2 start relay.
When the engine gas generator attains 53% N2, a validation time of
10 seconds elapses before the message "E2 ATS SOV OPN" appears
on the EICAS. At 56.4% N2 the FADEC sends a signal to engine 2
start relay be de-energized, thus the SCV is also de-energized and the
airflow stops flowing to the ATS turbine. In normal operation
conditions, 56.4% N2 is reached in less than 10 seconds.
The ATS turbine stops operating and the engine gas generator speed
increases.
Page Code
2-10-30 3 01
REVISION 37