Rotax OM-912, Руководство оператора

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Effectivity: 912 Serie BRP-Rotax page 9 - 4
OM Edition 1 / Rev. 0 Jan.01/2007
d03933
.fm
9.4) Electric system
See fig. 7.
The ROTAX 912 engine is equipped with a dual ignition unit of a breaker-
less, capacitor discharge design, with an integrated generator.
The ignition unit is completely free of maintenance and needs no external
power supply.
Two independent charging coils ( 1 ) located on the generator stator supply
one ignition circuit each. The energy is stored in capacitors of the electronic
modules (
2 ). At the moment of ignition 2 each of the 4 external trigger coils
( 3 ) actuate the discharge of the capacitors via the primary circuit of the dual
ignition coils ( 4 ).
Firing order: 1-4-2-3.
◆
NOTE: The 5
th
trigger coil ( 5 ) is planned for rev. counter signal.
B1/2
B3/4
A1/2
A3/4
Ignition circuit B
Ignition circuit A
00425
4
4
4
4
2
2
3
5
1
3
fig. 7