LXNAV LX80xx, User Manual

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Operating Modes Version 6.03, May 2017
Page 77 of 192
 Gear and airbrake is used when you already have an old style of gear warning,
where gear and airbrakes are connected together in one loop.
 Water ballast open is used to automatically calculate amount of dropped water.
See also chapter 0.
 Canopy locked
 Radio PTT active should be wired parallel to PTT button and it will mute vario
sound, when transmitting over radio.
 Engine failure
 Low fuel
Digital input shall be wired via switch to ground and it shall open or close, when selected
action is performed. A green light will light.
If necessary, check Invert check box, to reverse the operation of digital input.
Once digital inputs are connected the system will warn pilot, if airbrakes are open on take-
off and when gear is not locked prior to landing.
Instead of using magnetic switch on flaps to toggle between SC (cruise) and
climb mode you can also use flap sensor for this operation. See chapter
5.1.11.14.
There is another input called VARIO PRIORITY. When this input is activated by
grounding the appropriate wire the unit will change to Vario immediately. This
input wire is set open (not grounded) as a factory default on delivery.
5.1.11.1.4.1 SC configuration with the NEW TYPE (from 2016) remote stick
The new LXNAV remote stick comes without the standard SC cable and VP cable, but the
function is still available.
With the new stick, there is no more need to solder these wires to the vario wiring loom.
The SC function is programmable through LX80/90xx (version 5.x )
Please make sure that none of the inputs is set to
“SC on/off switch” or "SC toggle button".
Configuration table for all SC switch options for new and old sticks:
Remote stick type
SET: Input (SC) setting
LX NEW remote without SC cable Not in use
Old LX remote with SC cable (before 8/2015) »SC toogle button«
Old remote stick with SC switch »SC on/off switch«
Using flap sensor Not in use
Using magnetic flap sensor (AS style) »SC on/off switch«
5.1.11.2 Vario Indicator Setup*
The vario indicator is always part of the vario unit. However an unlimited number of
secondary vario indicators can be connected to the system using the RS485 system bus.
There are three different types of vario indicators;
I9 vario indicator , which is standard
part of V5/V9 variometer, I8 vario indicator or I80 vario indicator , which is built-in part
of V8/V80 variometer and old LCD or USB-D vario indicator .