Servo Display - FUTABA 9 CHP SUPER Instruction Manual

SUB-TRIM: makes small changes or corrections to the neutral position of each servo. Range is -120 to +120, with 0 setting,
the default, being no SUB-TRIM.
The recommended procedure is as follows:
•
measure and record the desired surface position;
•
zero out both the trims (TRIM RESET menu) and the SUB-TRIMs (this menu);
•
mount servo arms and linkages so that the control surface's neutral is as correct as possible; and
•
use a small amount of SUB-TRIM to make fine corrections.
GOAL of EXAMPLE:
Adjust the flap servo's SUB-TRIM until
its center exactly matches the aileron
servo's center, as they are to work
together as flaperons.
Where next?
SERVO display and cycle submenu: displays radio's output to channels 1-8.
GOAL of EXAMPLE:
View the result of reassigning channel
6 from VR(A) knob to three-position
C.
S
WITCH
Cycle the channel 6 servo.
Where next?
We recommend that you center the digital trims before making SUB-TRIM
changes, and that you try to keep all of the SUB-TRIM values as small as
possible. Otherwise, when the SUB-TRIMs are large values, the servo's
range of travel is restricted on one side.
STEPS:
Open BASIC menu, then open
SUB-TRIM.
Choose the channel to adjust, and
adjust until surfaces match. (Ex: flap)
Repeat for other channels.
Close.
Adjust trim steps: see p. 41.
Adjust END POINTs: see p. 32.
Set up dual/triple rates and exponential (D/R,EXP): see p. 35.
The servo submenu includes two features:
•
real-time bar-graph display to demonstrate exactly what commands the transmitter is
sending to the servos. (This can be particularly handy in setting up models with
complicated mixing functions, because the results of each stick, lever, knob, switch
input and delay circuit may be immediately seen.); and
•
servo cycle function to help locate servo problems prior to in-flight failures.
STEPS:
Complete desired programming function.
(Ex: in AUX-CH, move ch. 6 to S
Open the SERVO function.
Move each control to see exactly how
operating. (Ex: S
WITCH
Prepare all servos to be cycled and cycle.
End cycling and close.
Set up dual/triple rates and exponential (D/R,EXP): see p. 35.
Set up desired programmable mixes: see p. 54.
Set up dual aileron servos: see p. 44.
Set up dual elevator servos: see p. 50.
42
INPUTS:
for 1 second.
as needed.
INPUTS:
See AUX-CH for details. (p. 39.)
C)
WITCH
for 1 second.
C in all positions)
Note change in position of ch. 6 servo.
Plug in servos. P
(If
ADVANCE,
to SUB-TRIM.
as needed. to each channel,
(If
ADVANCE,
1 step to SERVO.
C to center position.
O .
OWER N
again.)
again.)