If conditions require and the Generator Busses have been intentionally
disconnected, other system such as windshield wipers can be energized by
switching related Generator Bus to ON. In this event, the battery operating
time will be reduced due to the greater loads imposed.
Failure of an inverter
(Helicopter equipped with emergency bus)
In the event of a main inverter failure (N° 1 or N° 2) the remaining inverter
will automatically power the 115V and 26V busses of the failed inverter.
The failure is indicated by INV 1 (2) and SAS1 (2) OFF caution messages.
Attempt to reset the failed inverter.
If INV 1 (2) caution message does not extinguish (loss of affected inverter),
proceed as follows:
Failed inverter : OFF.
SAS (1 or 2) switch : ON.
Failure of an a.c. bus system - 115V and 26V
(Helicopter equipped with emergency bus)
The failure of an a.c. bus system (115V and 26v) is indicated by the
simultaneous activation of:
SAS 1 OFF - VG 1 message: for a.c. bus system N° 1
SAS 2 OFF - VG 2 message: for a.c. bus system N° 2
RFM A109E
E.A.S.A. Approved 3-48U
Rev. 35
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