VAL Avionics NAV 2000 Guia de Instalação descarregar pdf (Página 332)

SV-AP-PANEL Installation

18-4 SkyView System Installation Guide - Revision R

Note that the SV-AP-PANEL’s trim controller only connects to the trim motors. The SV-AP-

PANEL does not connect to or monitor trim position. Monitoring trim position is done by

connecting the trim motor’s potentiometer (position sensor) that is mechanically ganged to the

trim motor to a General Purpose Input pin on the SkyView SV-EMS-220/221 as described in

Trim and Flaps Position Potentiometers in the SV-EMS-220/221 Installation and Configuration

chapter.

Trim Motor Control Safety Features

 Pilot trim controls override Copilot trim controls.

 If SkyView Network connection or SkyView power is lost, the trim motor functions will

continue to function as long as avionics power is available at Pin 9. When SkyView is not

powered on (not communicating with the SV-AP-PANEL) the speed scheduling features

(QUICKEST TRIM SPEED / SLOWEST TRIM SPEED) are not available. In this failsafe mode,

the trim motors will run at their full speed when trim buttons are pushed.

 If a trim control button is detected as pushed when power is first applied to Pin 9, trim

control will not activate until the button is first released.

 If a trim control button is pushed for more than five seconds (or longer, such as a stuck

button), trim control on that axis will be temporarily inactivated until the button is first

released.

 Motor outputs are protected against short circuits.

If two SV-AP-PANELs are installed, connect only one SV-AP-PANEL to control trim

motors. Do not connect the second SV-AP-PANEL’s D15 connector in parallel with

the first SV-AP-PANEL’s D15 connector – doing so could cause unexpected

behaviour and/or damage to the units and the trim motors.

On the D15 connector, Power (Pin 9) and Ground (Pin 2) connections are only required to

control a Pitch trim motor and/or a Roll trim motor. If the trim motor outputs are not used,

Power (Pin 9) and Ground (Pin 2) should not be connected.

Ray Allen trim motors are known to work - connect the white wires to Pins 7 and 8 (MOTOR 1)

and/or Pins 14 and 15 (MOTOR 2). If using other trim motors, ensure that the trim motor’s

maximum current does not exceed 2A.

The functions assigned to each pin in Table 62 below reflect Motor 1 being used for TRIM

UP/DOWN and Motor 2 being used for TRIM RIGHT/LEFT.

D15

Pin Function

Notes

This pin is not used, do

not connect.

This pin is not used, do not connect.

1 2 ... 327 328 329 330 331 332 333 334 335 336 337 ... 400 401

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VAL Avionics NAV 2000 Guia de Instalação Página 332