LEADING JET TURBINE Co., Ltd. ATJ TURBINES
29
List of ECU Warning message codes
RC SIGNAL LOST/INCORRECT: The signal received from the RX is wrong (outside
calibration margin) or absent.
PUMP LIMIT REACHED: The ECU have increased the pump power up to the value set
on the “Pump Limit” parameter, but the engine hasn’t arrived
to full power. Causes could be flat battery, fuel restriction or
anything that can cause a reduction in the fuel flow.
xxxx OVERLOAD: A excessive current is detected flowing to the specified output.
Diagnoses: During engine operation the FADEC measures and stores all the engine
operating parameters recorded during the last the 51 minutes of operation.
These measures can be downloaded later to a PC to study the behavior of
the engine in flight and to diagnose any possible problems. Also, after each
cycle of operation, the FADEC stores the last cause of shut down and the
value of RPM, temperature and pump power at the moment of shutdown. In
order to access these measures, it is necessary to reinitialize the FADEC
(shut down and power-up). Set the trim down (Trim Low) and push the left
button on the display. The FADEC will show the cause of shutdown and the
measured values at the moment of shut down. These are as
follows:
Diagnosis messages:
User Off:
The engine has been shut down because it has received the shut down
command
from the transmitter.
Fail Safe:
The engine has been shut down because of loss of the control signal from the
transmitter. Once the Ecu detects a loss or invalid RC signal for over 0,5s, it sets
engine
power to idle, and if after another 1,5seconds a valid signal is still not received the
engine
is shut down.
Speed Low:
The engine has been shut down because the RPM has dropped below a
minimum.
Cause could be lack of fuel, air bubbles, problem with the batteries, or defective RPM
sensor.
Flame Out:
The engine has been shut down because the temperature has dropped
below the
minimum of (100ºC). (Usually a thermocouple failure).
RCPw Fail:
Lack of power from the radio receiver.
