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Battery / Fuel Warning Function
The ECU has an optional function for low battery and fuel warning. This function is
activated by the following conditions:
1. ECU battery is dangerously low (less than 1.1V/cell).
2. Calculated remaining fuel in tank is below a pre-programmed limit.
When the corresponding warning functions have been enabled in the Limits menu (see
page 30), the following occurs:
If the throttle stick is set above 50% thrust, the turbine will idle for five (5) seconds, then
return to the actual throttle stick position power for ten (10) seconds. Thereafter, the
sequence is repeated.
This warning function can be interrupted for a 25-second period, by briefly bringing the
throttle stick to idle and then back to the previous position. As long as the stick is below
the 50% throttle level, the warning function will be interrupted. When the throttle stick is
set above the 50% level, it returns to the warning function sequence.
Turbine Running States
The
JetCAT P80
progresses through several operating states, from ignition to the cool
down process. The transitions of these states are automatically controlled by the ECU
and by user commands. The current value is always displayed on the GSU, under the
STATE
selection in the
RUN
menu.
Explanation of the Turbine States
Table 1
Value
Explanation
-OFF-
AUX switch in the
Off
position and/or the throttle trim in the
Off
position.
All LEDs are off.
Turbine is off (preventing starting).
Stby/START
AUX switch positioned to the
Start/Standby
position, throttle trim at
maximum and throttle stick at idle. The LED chase sequence is started
from green to red to yellow, continuously. When throttle stick is
advanced to the maximum position, the starter motor engages to spin
the rotor. When RPM reaches a pre-programmed value, the starter
motor’s voltage is removed and the turbine is ready to
ignite
.
