Rotax 912 i series Operator's Manual page 77

ECU
Warning lamps
Error messages
Main functions of
the ECU
Effectivity: 912 i Series
OM Edition 1/Rev. 0
The ECU is a digital engine control unit which contains the
LANE A and the LANE B in a single housing. In principle, each
LANE represents an independent computer.
In the "AUTO" (both LANE select switch "ON") setting, the ECU
decides which LANE takes control (redundancy management) ac-
cording to the health level of the EMS.
Any errors or values outside the operating limits are indicated by
an EMS lamp for each lane.
NOTE: The ECU also contains an databus system
(CANaerospace). A large number of engine pa-
rameters and warnings can be displayed on a
separate display. Usage is up to the aircraft
manufacturer.
All the information messages, warnings and displays below relate
to the lamps and not to databus information messages.
LANE A
OFF Flashing
Flashing OFF
OFF ON
Flashing Flashing
Flashing ON
ON OFF
ON Flashing
ON ON
ON = permanently on
Other main functions of the ECU include:
- Ignition control
- Fuel injection control
- Indication of faults and values that are outside operating limits
- Storing faults
- Power supply monitoring
BRP-Powertrain
LANE B
Limited flight operation
Limited flight operation
Land the aircraft
Land the aircraft
Land the aircraft
Land the aircraft
Land the aircraft
Land the aircraft
Action
page 7-11
January 01/2012