P1 to P5
The number of configurable servo calibration points (min. 2, max. 5 points)
varies according to the setting selected when initially assigning the servos (see
section 4.6.2 "Assign" on page 149).
You can complete several tasks by making adjustments to the servo
calibration points (parameters P1 … P5):
Establish the maximum working range of the servo:
The servo travels set at this point are never exceeded by the transmitter
(protection from mechanical servo stalling, limit).
Compensate for mechanical differences in the control surface linkage:
For example, adjust the flaps in a multi-flap wing so that they match.
Servo calibration should only be used for fine-tuning. Careful and thorough
mechanical pre-adjustment is strongly recommended.
Never reduce the maximum servo travels (P1 and P5) by more than approx. 30%.
Otherwise, available servo power is wasted, you will forfeit servo resolution and the
play in the servo gearbox will be amplified unnecessarily.
Procedure
1. Adjust the direction of servo rotation.
o Servos controlled by basic functions (e.g. Aileron, Elevator,
Rudder, ...):
First, check that the rotation direction of the controlled surface correlates
to the control movement. If required, change the rotation direction in the
REV/TRM parameter (REV/CLR button).
If the rotation direction is changed later, a re-calibration is required.
o Servos controlled by mixers (e.g. AILERONS+, DELTA+, V-TAIL+, ...):
In the case of servos to which a mixer has been assigned, the absolute
direction of servo rotation is initially irrelevant. The correct direction can be
set later in the mixer. However, for paired control surfaces—e.g. ailerons
with mixers—the ailerons must rotate in opposite directions. If this is not
the case, one of the servos must be reversed.
2. Select a calibration point (P1 to P5) and open the input field.
3. Press the allocation button for the digi-adjusters.
The servo—and all the other servos to which the same control function or
mixer is assigned—automatically assume the position corresponding to the
To Next Page
Loading...
