User Manual

Copyright 2012 Eagle Tree Systems, LLC Page 5
Traditional Models with Single Aileron Servo
• Model Control Type setting: Standard (this is the default)
• Guardian Receiver Inputs
o Receiver Aileron Output → Guardian Aileron In
o Receiver Elevator Output → Guardian Elevator In
o Receiver Rudder Output → Guardian Rudder In
o Guardian Aux-In is not connected
• Guardian Servo Outputs
o Guardian Aileron Out → Aileron Servo (if no Aileron
present, connect Rudder Servo to Aileron Out)
o Guardian Elevator Out → Elevator Servo
o Guardian Rudder Out → Rudder Servo
o Guardian Aux Out is not connected
Traditional Models with Dual Aileron/ Flaperon servos (with
Transmitter mixing)
• Model Control Type setting: Standard (this is the default)
• Guardian Receiver Inputs
o Receiver Aileron Output → Guardian Aileron In
o Receiver Elevator Output → Guardian Elevator In
o Receiver Rudder Output → Guardian Rudder In
o Receiver Second Aileron or Flaperon Output → Guardian
Aux In
• Guardian Servo Outputs
o Guardian Aileron Out → Aileron Servo
o Guardian Elevator Out → Elevator Servo
o Guardian Rudder Out → Rudder Servo
o Guardian Aux Out → Second Aileron or Flaperon Servo
V-Tail with Ailerons
• Model Control Type setting: V-Tail
• Guardian Receiver Inputs
o Receiver Aileron Output → Guardian Aileron In
o Receiver Elevator Output → Guardian Elevator In
o Receiver Rudder Output → Guardian Rudder In
o Receiver Second Aileron Output → Guardian Aux In
(optional)
• Output
o Guardian Aileron Out → Aileron Servo
o Guardian Elevator Out → V-Tail Servo 1
o Guardian Rudder Out → V-Tail Servo 2
o Guardian Aux Out → Second Aileron Servo (optional)
Elevon / V-Tail with no Ailerons
• Model Control Type setting: Elevon
• Guardian Receiver Inputs
o Receiver Aileron Output → Guardian Aileron In
o Receiver Elevator Output → Guardian Elevator In
o Receiver Rudder Output → Guardian Rudder In
o Guardian Aux-In is not connected
• Output
o Guardian Aileron Out → Elevon Servo 1
o Guardian Elevator Out → Elevon Servo 2
o Guardian Rudder Out → Rudder Servo
o Guardian Aux Out is not connected
Figure 4: Receiver and Servo Connections for Typical Wing Types
Under normal conditions, the BEC voltage should be at least 4.5 volts to achieve the best stabilization performance. Never
exceed 16V!
If the voltage drops below 3.5 volts for a short period of time, the Guardian will experience a “brownout.” In this case, the Guardian
will attempt to recover gracefully. During recovery, stabilization may be disabled or suffer from performance issues while it does so. If
you experience issues like this in flight, bring the Mode/Config Switch to either 3D Mode or Stabilization Disabled Mode (if your
transmitter is configured for mode control) and land immediately.
If a brownout condition is detected by the Guardian, the LED will blink an error code of four long blinks followed by one short blink. If
this LED signal is ever seen after a flight, it is recommended that the BEC or battery be upgraded. Please see the Status LED section for
more information on how to interpret LED blinks.
Failsafe position of Receiver Inputs
If, after you reset level flight and trims, an input channel should become disconnected from your receiver during flight, it will cause the
Guardian to use the stored trim setting for that servo channel input as a failsafe.
Wing Type Configuration
The Guardian is configurable for most common wing types. By default, it is configured for traditional wing control. Please refer to
Figure 4, which shows the receiver and servo connections for typical wing types.
The Guardian requires unmixed control inputs from your receiver, even if you have a V-Tail or Elevon model. If you have a V-
Tail or Elevon model, the Guardian does the mixing internally, so you will need to change your transmitter configuration to standard wing
type, rather than having your transmitter do the mixing. Note: for airframe types other than standard and dual Aileron/Flaperon, you will
need to be change the “Model Control Type” setting, using either the radio stick configuration or the PC software. See the Menu
Operation section below for more information on changing this setting.
Dual Ailerons/Flaperons
An exception to the unmixed input requirement is made for Dual Aileron and Flaperon models. By default, the Guardian will accept
premixed Dual Aileron or Flaperon inputs to its Aileron and Aux inputs. But, if your controller does not have the capability of
performing Dual Aileron or Flaperon mixing, then the Guardian can be configured to do this for you. See the List of Features and
Options: Onboard Dual Aileron Mixing Enabled menu option for more information.