AE300-Wizard
Document No.:
E4.08.09
E4.08.09
:
AE_xx_000
Revision:
13
9
:
00
Page:
45 of 89
Copyright © 2019, Austro Engine GmbH
Dept.:
Electric/Electronic
Type:
User Guide
same DTC occurs again (as is the case with intermittent faults) the FCM entry will be updat-
ed to include this new occurrence as the “last” occurrence and the “occurrence” counter of
this FCM entry will be incremented by one. For example if a sensor wire is rubbing against
the engine, causing intermittent shorts – the first short observed will be permanently entered
as the “first” occurrence, the last of multiple shorts will be entered as “last” occurrence and
the occurrence counter will display how often this failure occurred since the last time the
FCM has been reset or overwritten.
8.2.6.1.5
Freeze Frame
For each occurrence of a DTC, up to 9 environmental conditions sampled at the time of fail-
ure are stored in the FCM. This set of environmental conditions is called “freeze frame”. For
each possible DTC a specific freeze frame has been defined to aid in trouble shooting a cer-
tain fault with as much pertinent information as possible.
Current definition of the freeze frame:
-
Env1:
Time of failure, day of month (due to space constraints months and year are
not stored)
-
Env2:
Time of failure, hours
-
Env3:
Time of failure, minutes
-
Env3:
Time of failure, seconds
-
Env4:
Combined engine status (see appendix “12.2.1 Combined Engine Status)
-
Env5:
Depending on the DTC, engine speed, propeller speed or battery voltage
-
Env6:
Depending on the DTC
-
Env7:
Depending on the DTC
-
Env8:
Depending on the DTC
-
Env9:
Depending on the DTC
When the AE300-Wizard reads the FCM and displays the fault details it automatically con-
verts the stored freeze frame data into readable physical units wherever possible (i.e. pres-
sures in hPa, temperatures in °C and so on).
Содержание AE300-Wizard
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