JR Vibe 90SG - Important Ccpm Programming Dos and Don

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IMPORTANT CCPM PROGRAMMING DO’S AND DON’TS
A. TRAVEL ADJUST
ItisextremelyimportantthatthetraveladjustmentvaluesforthethreeCCPMservos(aileron,elevatorandAux1)
be initially set to exactly the same travel value. If the travel value is not similar for each servo, it will create unwanted
pitchingandrollingoftheswashplateduringcollectivepitchinputs.Thetravelvaluesforeachservowillbeadjusted
in the nal radio setup to remove any minor pitch and roll coupling during pitch, roll and collective movements.
Minortravelvalueadjustmentsarenecessaryduetoslightvariationsinservotravelandcentering.Althoughthe
three servos may appear to travel at the same amounts in each direction, in reality the servos can vary slightly. This
variationismorecommoninanalog-typeservos.IfJR’snewdigitalservosareused,thetraveladjustmentvalueswill
generally not need to be altered.
B. SERVO REVERSING
ItisalsoextremelyimportantthattheservoreversingdirectionsforthethreeCCPMservos(aileron,elevator,Aux
1) be set as indicated in the upcoming radio programming steps. If one or more servos is not set to the correct
direction,theCCPMfunctionwillbeoutofsynchronization,andthethreecontrolfunctions(Aileron,Elevator,
Collective) will not move properly. In the event that a control surface is working in the wrong direction, the control
function can only be reversed by changing the desired CCPM value for that function from a (+) to a (-) value or vice
versa.
Example: If when you increase the collective pitch, the pitch of the main blades actually decreases, it
will be necessary to access the CCPM function and change the travel value for this function from (+)
to (-), or (-) to (+). This will reverse the direction of the collective pitch function without aecting the
movement of the aileron and elevator functions.
C. CCPM SERVO CONNECTIONS
TheJR®120°/140°CCPMsystemrequirestheuse
ofthreeservostooperateAileron,Elevatorand
Aux1(Pitch).Thelabelingoftheseservoscanbecome
quiteconfusingbecause,withtheCCPMfunction,the
three servos no longer work independently, but rather
as a team, and their functions are now combined. For
this reason, we will refer to the three servos in the
following manner:
Elevator Servo: This is the top left servo. The channel
number for this servo when using a JR
radio is CH3.
Aileron Servo: This is the top right servo. The channel
number for this servo when using a JR
radio is CH2.
Aux 1 (Pitch) Servo: This is the front left servo. The
channel number for this servo
when using a JR radio is CH6.
Please refer to the CCPM connections chart below for clarication. For non-JR radios, please consult your radio
instructions for proper connection.
Throttle
Servo
Aileron
Servo
Elevator
Servo
Rudder
Servo
Pitch
Servo
Pitch
Servo
Elevator
Servo
Aileron
Servo