Jet Central Rabbit, Operation And Maintenance Manual

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January, 2009 28
5 Radio Link Failsafe
The I.C.S. has a failsafe feature that stops the engine in the case of the radio link failure, but
prevents to stop it in the case of short glitches. This system works in PCM/PPM/IPD systems.
PPM systems
In the case of radio failure (erratic movement of the servos or pulses out of the programmed
values window), the
I.C.S. sets the power to idle during approximately 1 sec. If the radio link
is regained in this time, the power goes back to normal, if not, the system will kill the engine.
PCM /IPD systems
The user should program the failsafe of these systems to cut the engine (trim low-stick low).
In the case that the receiver has a radio link failure, it will output the failsafe settings. The
I.C.S. will set the power at idle during 1 second after receiving the stop command, and if
during this time the receiver exits from failsafe the engine will go back to the throttle set
power. If not, it will be cut-off. This system allows flying through small glitches while retaining
the ability to kill the engine in the case of radio failure.
ALWAYS PROGRAM THE FAILSAFE TO KILL THE ENGINE. NEVER FLY A
TURBINE PLANE WITH THE FAILSAFE SET TO “HOLD”.
Special features
Last power-down cause
The I.C.S. stores in its internal memory the measures of the engine each 0.5s up to 52
minutes. These measures are RPM, temperature, throttle position and pump power. Only can
be downloaded through a PC and a RS232 cable, but the user can check through the HDT
the cause of the last power down and the measures of the engine at the moment when the
I.C.S. cut the engine. This feature is useful to track the cause of a flame out in flight. After
power up, set the trim low and press the “Menu Down” button. The HDT will show the cause
of the last shut down, and the EGT, RPM and pump power at this moment during 2 sec.