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VT80BL Instruction Manual 

Page 10

JETS MUNT S.L

Aligning transmitter with ecu

   As the display does not photograph well we have reproduced 
the display readings as a green box.

  Turn on the transmitter and receiver. The opening screen should 
show as (1):

  Note there are four buttons on the display, two on the left and 
two on the right hand side. The left buttons move to the different 
screens and the right buttons are used to change the values 
stored. Press the second, left button and scroll through the 
menus until you find the one showing (2): 

  Press the (-) button and the ecu will show the “Radio” 
parameters menus. First screen show graphically the current 
adjusts on the radio. Press the (-) button again to enter in the 
menus to adjust the radio (3).
  
  Press the right hand button (+) to confirm that you really want to 
program the radio. The screen will change to (4): 

  On your transmitter, raise first the trim to full and next the 
throttle stick to full, in this order. Ensure stick is firmly against the 
stop. Now holding the stick against the stop, press the right 
button (+) to store the signal from your TX into the ECU. The 
screen will now change to (5): 

  Move the trim (or switch the “engine cut” switch to on) and 
throttle stick back to zero and again press the right hand button 
(+). The display will now change to (6): 

  Leaving the throttle stick in the minimum position, raise the 
throttle trim to the full up position or switch “Engine Cut” switch to
off, and again press the “+” button to store the value into the ecu.
 
  If you have done all steps correctly the LED located directly 
above the throttle socket in the ecu will light up flashing 2 times in 
the ECU when the “Idle” command is received, meaning that trim and throttle stick are set to 
idle positions on the transmitter. If the ecu battery is connected, a sound will be heard at 
same rate as the Led blinks. Lower your throttle trim and the LED will change to a single 
flash sequence indicating
correct reading of the transmitter engine shut off signal by the ecu. 

  On some Futaba transmitters, it has been found that the throttle channel the sense of 
movement may require reversing (Servo reverse) and repeat the transmitter alignment.
Correct reading of throttle % by the ecu can be verified in the second screen of the data 
terminal (7), percentage of the throttle position is shown on, 0% in the position of engine stop 
(trim and stick down), 100% with stick/trim full up and between 10% and 30% at idle.
This now completes your radio setup and should only need doing again if the radio settings
are changed. 

Trim Low    T=020ºC
RPM 00000 PW 000 

          Info          Run
Start         Radio  

Transmitter         yes
adjust 

Stick Up Trim Up
       (Full power) Ok 

Stick Down
Trim Down (Stop) Ok 

Stick Down
Trim Up (Idle)

Pulse=1000uS     0%
Battery:   7,2V 

(1)

(2)

(3)

(4)

(5)

(6)

(7)

Summary of Contents for VT80BL

Page 1: ...age 1 Specifications Nominal thrust 80N at 150 000 RPM Idle thrust 4 5N Idle RPM 45 000 Diameter 90 5mm 3 56 Engine weight 950g 2 1lb Installed weight 1 075g 2 37lb Fuel Kerosene 3 5 oil Fuel comsumpt...

Page 2: ...Fuel system Page 8 Fuel lter Page 8 ECU Engine Control Unit Set Up Page 8 Aligning transmitter with ecu Page 10 Failsafe Page 11 Preparing the engine for running Page 11 Prevent ood engine Page 12 Fir...

Page 3: ...358 Arenys de Munt Barcelona Spain Web site www jets munt com E mail info jets munt com Fax 34 93 7950113 Legal and Disclaimer The engine design and the contents of this manual are copyright by Jets M...

Page 4: ...e di culty and specialist equipment Simply slackening the spinner nut of the rotor will immediately lose the delicate balance condition without which the engine may not run without damage to its rotat...

Page 5: ...engine exhaust contains gases which can cause asphyxiation and nuisance smells 5 Do not touch the engine whilst it is running Turbines rotate at a very high rpm and the engine casing and exhaust can r...

Page 6: ...rom the engine intake so there is no possibility of accidental ingestion of the wire 3 Fuel pipe should be routed similarly clear of the intake 4 The fuel pump should be preferably mounted with the sp...

Page 7: ...can be pulled out of the plane and without connecting to the ecu just using an 5 10V battery the data stored can be played back in real time same presentation as if the engine was running Playback mod...

Page 8: ...he ecu so that some fuel clean all the possible dirt particles that could have entered in the system during installation ECU Engine Control Unit Set Up The ECU supplied is supplied programmed for the...

Page 9: ...VT80BL Instruction Manual Page 9 JETS MUNT S L Engine installation Electrical connections Engine installation Fuel system...

Page 10: ...lay will now change to 6 Leaving the throttle stick in the minimum position raise the throttle trim to the full up position or switch Engine Cut switch to o and again press the button to store the val...

Page 11: ...should not be required and can only be carried out by Jets Munt SL or your authorized dealer Preparing the engine for running A suitable platform table workbench is now required to clamp the test sta...

Page 12: ...rted start the start up sequence is aborted by the user or automatically before the engine arrive to idle This can cause that the kerosene inside the engine keep burning for long time and could destro...

Page 13: ...ized in pulsating mode Few seconds later the kerosene will ignite and the exhaust temperature will begin to increase The rpm and pump power will increase automatically During this phase the data termi...

Page 14: ...sing the starter for long time can destroy the starter motor List of ECU message codes Here is a list of possible messages shown on the data terminal screen and their meaning TrimLow Indicates that th...

Page 15: ...efective RPM sensor RCPwFail Lack of power from the radio receiver VT80BL Trouble Shooting PROBLEMS SOLUTIONS The engine loses power in ight 1 The ECU battery is empty recharge 2 The lters are dirty T...

Page 16: ...ngine Use a appropriate adapter for the 6mm tube output of the UAT to the 4mm in the inlet side of the fuel pump direction of fuel ow is clearly shown at the top of the pump The clear 4mm tubing is us...

Page 17: ...e 2T oil The engine can use 2T oil but the di erent oil brands use di erent contents of additives to protect the mechanical parts from rust during inactivity periods This is good for engine protection...

Page 18: ...e glow plug voltage The engine come from factory with this voltage adjusted for reliable starts and long life of the glow plug element Increasing the voltage beyond the necessary will cause the failur...

Page 19: ...l system is kept free from dust and dirt inclusion and that fuel is carefully ltered Running Time Counters Using the second left hand button scroll through the menu s to the INFO menu This screen cont...

Page 20: ...he normal procedure Trim up cycle stick The time to shut down and later start is exactly the same as standard operation This mode is useful for gliders where the engine is used to climb to height shut...

Page 21: ...Start option in the ECU Menu Do this during a normal ight at a high altitude and throttle down to idle then begin a 15sec count down From this try to gauge if the aircraft can maintain ight during th...

Page 22: ...ve a plane in particular circumstances but it can do much more harm than good A belly landing or landing gear damage due to a ameout induced heavy landing is more favorable than a similar landing arri...

Page 23: ...een Button Radio Check to go to Radio Screen Button Last Shutdown to go to Last Shutdown Screen Button File to go to File Screen Only visible if uSD inserted before turn on Button Back to go initial s...

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