Rotax 912 i Series Installation Manual page 48

NOTE:
NOTE:
Effectivity: 912 i Series
Edition 1/Rev. 2
BRP-Powertrain
INSTALLATION MANUAL
The battery must be selected so that there is a min. voltage
of 9 V on the ECU during start-up (also in cold weather
conditions). The engine bus voltage is displayed via the
CAN BUS. It can also be displayed using the BUDS Aircraft
diagnostic tool.
Whether the required minimum voltage of 9 V is actually
observed (e. g. during engine start) can only be determined
with an oscilloscope.
It must be remain displayed during the electric starter
NOTICE
WARNUNG
operation.
During its first installation in an aircraft model, the volt-
age must be measured at 3 places.
- Battery voltage (separate voltmeter)
- Voltage on electric starter (separate voltmeter)
- Engine bus voltage (displayed in BUDS diagnostic
tool or on display).
The connection from the battery to the EMS system
NOTICE
WARNUNG
must be kept separate from the one to the starter relay
in order to avoid unnecessary voltage drop.
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Page 6
January 01/2014