Failure Of The Ems Power Supply - Rotax 912 iS Sport Operator's Manual

4.1.1) Failure of the EMS power supply

Failure of the EMS
power supply
Effectivity: 912 i Series
Edition 2 / Rev. 0
Reduce engine power setting to the minimum necessary and
carry out precautionary landing.
NOTE
An oscillating system indicates limited capability from the sys-
tem (e.g. set value determination, diagnostics, etc.) whereas
the system continuous to function in a manner still providing full
engine power.
NOTE
If a warning indicator remains on permanently, it indicates that
a error with higher severity (Failure) has been detected by the
internal testing procedures of the ECU.
In this case, the ECU will continue to operate in an alternative
control mode, which will transfer the control of ignition and in-
jection to the error- free Lane. Regular operation as well as al-
ternative control modes of the ECU are able to represent the
full engine power. Differences arise only in the efficiency of the
engine.
If limitations were exceeded, warning lamps may be reset by re-
start or lane check.
• If the EMS power supplies (alternator A) fails then the ECU
automatically switches one-time over to the second EMS
power supply (alternator B)
• While alternator B runs, no power drop is recognizable
• Failure of both EMS power supplies (alternator A/B) result in
engine stoppage. Remedy: Switch "ON" the Battery Backup
Switch (In this case the power supply is provided by the air-
craft battery). Restart engine.
• Land the aircraft at the next available opportunity
• A maintenance inspection should be carried out
BRP-Rotax
ATTENTION
ATTENTION
No charging of battery!
Page 4-5
January 01 2019