Power Loss, Airspeed Above 40 Knots (In-Flight); Power Loss, Airspeed Below 40 Knots (On-Ground) - uAvionix AV-30-C Manual

10.2.2

Power Loss, Airspeed Above 40 Knots (In-Flight)

When in flight and the bus voltage drops below 7 VDC, the unit will
automatically transition to internal battery operation; no pilot action is
required for continued operation.
The "ON BATTERY" annunciation will be displayed:
If bus voltage returns, the unit will automatically transition back to aircraft
bus power; no pilot action is required. The "ON BATTERY" annunciation
will extinguish.
10.2.3

Power Loss, Airspeed Below 40 Knots (On-Ground)

When on ground and the bus voltage drops below 7 VDC, the unit will
initiate a shut-down sequence. This is the normal "on-ground" shutdown
method. Pilot may discontinue the shutdown with any knob or button push.
If bus voltage returns, the shutdown sequence will automatically
discontinue, and the unit will return to normal operating mode.
If bus voltage is not returned and the unit remains on, it can be shut down
by pressing and holding the left and right buttons until screen goes black.
UAV-1003946-001, AV-30-C Pilot's Guide
Figure 31 - On Battery Operation
42 Revision D
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