SkyView System Installation Guide - Dynon Avionics

Autopilot Servo Installation, Configuration, and CalibrationAP Disengage/CWS ButtonThe installation of the AP Disengage/CWS button is required.The AP Disengage/CWS button should be in a very accessible location, usually mounted to thestick or yoke. This button’s primary purpose is to immediately disengage the autopilot. It is alsorequired for autopilot calibration, control wheel steering functionality, and can be used toengage the autopilot.This button should be a single pole, normally open, momentary button. Verify that twoterminals of the button are shorted when the button is pressed and open (no-connect) whenthe button is released. One terminal of the button should connect to the servos’ yellow wires,and the other should connect to ground.While not required, you may install a 4.7 - 5.3k ohm resistor across the AP Disengage/CWSbutton. This allows SkyView to detect a break in this circuitry and alert the pilot if this resistor ispresent in the installation. If this resistor is installed, set SETUP MENU > AUTOPILOT SETUP >DISENGAGE BUTTON > ENABLE BROKEN LINE DETECT to “YES”.(Optional) External LEVEL ButtonSkyView supports an external button that engages LEVEL mode in the same way that pressingMAIN MENU > AUTOPILOT > LEVEL does. This allows the pilot to mount a permanent,dedicated button on the panel or yoke/stick.This button should be a single pole, normally open, momentary button. Verify that twoterminals of the button are shorted when the button is pressed and open (no-connect) whenthe button is released. One terminal of the button should (momentarily) connect the SkyViewdisplay 37-pin connector Pin 28 (Contact #1 Input), and the other should connect to Ground. Ifmore than one display is installed, this button will work correctly if connected to only oneSkyView display, but for redundancy (failover) it is recommended that the button be connectedto all displays in parallel.Wire SizingWhile it is beyond the scope of this installation guide to advise on specific types of wiring for aparticular aircraft, choice of wiring should be sized to 1) minimize voltage drop over the lengthof the particular wiring run, and 2) conduct the amount of current required by the subsystemwithout the wiring becoming warm to the touch. Appendix C: Wiring and Electrical Connectionscontains information and suggested resources for wiring and electrical connections. Generally,20 AWG wire is a suitable gauge for the servo power / ground wires for lengths up to 20’ ofwire.Wiring InstallationCare should be taken such that aircraft wiring is not subjected to chafing, excessive flexing, orconnections/junctions subjected to excessive vibration which may cause theconnection/junction to fail or short-circuit.SkyView System Installation Guide - Revision O 10-13