Avidyne IFD540 Manual de instalación descargar pdf (Pagina 196)

6-18 General

SYSTEM FAILURES

NOTE

Good Airmanship

In all cases, basic airmanship should be exercised

and fundamentals utilized such as: maintain aircraft

control, analyze the situation, and take proper

action.

POWER DISTRIBUTION

Each IFD draws a total of 2 amps in nominal operation and up to

4 amps under peak conditions for 28V aircraft. This rises to 4 and

8 amps respectively for 14V aircraft. The system is designed to

operate without degradation on a single power bus, including

single functioning alternator.

Each IFD is controlled by a pair of circuit breakers which need to

be pulled out to remove power to an IFD, or the top left IFD knob

can be pushed and held to power the unit down (recommended

method).

LOSS OF IFD

Failure Indication:

The simplest method of determining that a loss of an IFD has

occurred is a loss of both the bezel backlighting and the display

going black.

Functionality Lost:

When the failure of an IFD is indicated by loss of both the bezel

backlighting and the display going black, this is a total loss of

function for this unit: There will be no VHF, GPS, ADS-B position

output, deviation output, etc. In a dual IFD system, loss of an IFD

may also result in loss of some sensor data on the remaining IFD

if that sensor data was only wired to the failed IFD and therefore

cannot be shared with the remaining IFD.

Recommended Pilot Actions:

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Avidyne IFD540 Manual de instalación Pagina 196