Epa - End Point Adjustment - AIRTRONICS SD-5G Operating Manual

PROgRaMMing

EPa - EnD POinT aDjUSTMEnT

The End Point Adjustment function allows you to adjust servo travel in both directions equally. This makes it possible to quickly
and easily adjust maximum control surface deflection without the need to physically adjust the control linkages. For example, if
you want your elevator to move Up and Down 1", but the elevator moves Up and Down more than 1", you can decrease the End
Point Adjustment percentage value to make the elevator move Up and Down 1". The End Point Adjustment percentage value can
be adjusted for each of the five channels independently. In addition, throttle channel End Point Adjustment percentage values
can be adjusted separately for the High and Low control stick positions. For example, you can use the End Point Adjustment
function to adjust your throttle linkage to prevent binding at both the High or Low positions.
Although the End Point Adjustment function is used to adjust maximum control surface deflection, we suggest adjusting the
control linkages first to try to achieve as close to the desired control surface deflection as possible, then use the End Point
Adjustment function to make final adjustments. To increase control surface deflection, you can either move the pushrod further
out on the servo arm or move the pushrod closer to the control surface. To decrease control surface deflection, you can either
move the pushrod closer to the center of the servo arm or move the pushrod further away from the control surface.
Changing End Point Adjustment Percentage Values
End Point Adjustment percentage values affect servo travel in both directions equally for all channels, except for the throttle
channel. To change End Point Adjustment values for the throttle channel see the Changing End Point Adjustment Percentage
Values - Throttle Channel section below.
1) Press the MENU key to highlight the EPA menu. EPA will flash and EL 100%
will be displayed in the Programming Window.
2) Press the CH/M3 key to select the channel you would like to change the End
Point Adjustment percentage value for.
EPA CH options are EL, AI, TH, RU, and GE
3) Press the INC+/M1 or DEC-/M2 keys to increase or decrease the End Point
Adjustment percentage value for the selected channel. Increasing the End
Point Adjustment percentage value increases servo travel equally in both
directions and decreasing the End Point Adjustment percentage value
decreases servo travel in both directions.
EPA setting range is 0% to 100%. The default setting is 100%.
Changing End Point Adjustment Percentage Values - Throttle Channel
1) From within the EPA menu, press the CH/M3 key to select the throttle
channel. TH L100% or TH H100% will be displayed in the Programming
Window, depending on the current position of the throttle control stick.
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