Troubleshooting / F.a - Eagle Tree Systems Guardian 2D/3D Stabilizer Manual

The 2D Mode Tab
1. Controls the 2D Heading Hold gain. When set above zero, this option determines how hard the Guardian will assert a roll to k Controls the 2D Heading Hold gain. When set above zero, this option determines how hard the Guardian will assert a roll to keep the airframe on its locked 2D Controls the 2D Heading Hold gain. When set above zero, this option determines how hard the Guardian will assert a roll to k
Heading. 0: Off; 1: Low; 10: High. See: 2D Heading Hold Gain
2. Controls the Automatic Turn Coordination gain. In 2D Mode, this Controls the Automatic Turn Coordination gain. In 2D Mode, this
feature will automatically coordinate your turns for you. feature will automatically coordinate your turns for you.
0: Off; 1: Low; 10: High. See: Automatic Turn Coordination
3. Stabilization Pitch/Roll Angle: The maximum target Pitch/Roll
angles that the Guardian will allow your model to assert. This will angles that the Guardian will allow your model to assert. This will
be approximate as stabilization gains can affect this behavior. be approximate as stabilization gains can affect this behavior.
4. See: Center Stick Stabilization Only Mode
5. See: Center Stick Box Size
The 3D Mode Tab
1. See: Enable 3D Heading Hold
2. See: Direct Rate 3D Control
3. When Direct Rate 3D Control is enabled, this sets the angular rate When Direct Rate 3D Control is enabled, this sets the angular rate
in rotations per second for each axis that the Guardian will attempt in rotations per second for each axis that the Guardian will attempt
to get your airframe to assert at full control stick deflection. to assert at full control stick deflection.
4. See: Derivative Gain
The Servo Config Tab
1. See: Expanded / Custom Servo Ranges
2. If Expanded / Custom Servo Ranges is enabled, these fields allow
an advanced user to specify hard limits to the Guardian's outputs. an advanced user to specify hard limits to the Guardian's outputs.
Useful for custom setups that will be damaged by servo deflection seful for custom setups that will be damaged by servo deflection
beyond certain angles. Normal servo deflection pulse length ranges (+/- beyond certain angles. Normal servo deflection pulse length ranges (+/
100%) are 1100 us to 1900 us. +/- 150% servo deflection ranges are
900us to 2100us.
The Advanced Tab
1. Controls the pulse frequency from the outputs of the Guardian. e frequency from the outputs of the Guardian.
Useful for digital servos.
See: Output Servo Pulse Frequency
Troubleshooting / F.A.Q.
Question: Is it OK to use expanded rates / ranges on my transmitter?
Answer: While using expanded servo ranges on your controller will not cause While using expanded servo ranges on your controller will not cause
problems, they are not needed and may cause confusion. The Guardian will problems, they are not needed and may cause confusion. The Guardian will
use its own expanded ranges depending on your gains, and any Custom Servo use its own expanded ranges depending on your gains, and any Custom Servo
Ranges that may be defined through the PC App. In both 2D and 3D Modes, hat may be defined through the PC App. In both 2D and 3D Modes,
higher gains will result in an improved responsiveness. In 3D Mode, activating higher gains will result in an improved responsiveness. In 3D Mode, activating
Direct Rate 3D Control and increasing the Direct Rate Speed for a given axis Direct Rate 3D Control and increasing the Direct Rate Speed for a given axis
will cause the model to rotate more quickly around that axis. In this way, the e quickly around that axis. In this way, the
Guardian 2D / 3D Stabilizer makes user-defined Dual (Expanded) Servo Rates
unnecessary.
Reduced Servo Rates / Ranges: In 2D Mode, full stick deflection will n 2D Mode, full stick deflection will yield less
than the configured "Stabilization Pitch/Roll Angle(s)", making it feel like
are "fighting" with the Guardian. 3D Mode will exhibit slower than the "Direct Rate Speed" are "fighting" with the Guardian. 3D Mode will exhibit slower than the "Direct Rate Speed" at full stick deflection. At some low servo ra
not work correctly.
Expanded Servo Rates / Ranges: 2D Mode may not be able to prevent inverted maneuvers, e
proportionally faster Pitch/Roll/Yaw rates.
Issue: The Guardian does not move my servos when I move the model around. : The Guardian does not move my servos when I move the model around.
Solutions:
•
Make sure that the gain control knobs on the Guardian are not in the center (vertical) position, which disables stabilization Make sure that the gain control knobs on the Guardian are not in the center (vertical) position, which disables stabilization
•
If you are using a 3 position Mode/Config switch, make sure it is not set in the center (disabled) position. If you are using a 3 position Mode/Config switch, make sure it is not set in the center (disabled) position.
•
If you are using a Gain knob on your transmitter, make sure that it's not turned to ing a Gain knob on your transmitter, make sure that it's not turned to -100% servo deflection, which will disable stabilization.
Issue: The Guardian moves my servos in the wrong direction as I move the model around. : The Guardian moves my servos in the wrong direction as I move the model around.
Solution: The gain control knobs on the Guardian set the direction of stabilized servo movement, as well as the gain level.
Issue: My rudder is not moving or is not moving as much as the other control surfaces. : My rudder is not moving or is not moving as much as the other control surfaces.
Solution: Unless you are in 3D Mode with 3D Heading Hold enabled, the Rudder wi D Mode with 3D Heading Hold enabled, the Rudder will not deflect very much to oppose your flight movements in the Yaw axis. This is
expected behavior. See the section called "Components of Stabilization ee the section called "Components of Stabilization" for more info.
Issue: Stabilization suddenly stops working or stabilizes incorrectly during flight, Stabilization suddenly stops working or stabilizes incorrectly during flight, but resumes correct operation later.
Solutions:
•
The Guardian may be experiencing brownout. See The Guardian may be experiencing brownout. See BEC/Receiver Battery Power Requirements section above.
•
Make sure that the Guardian is securely mounted, and not "flapping around" during aggressive maneuvers Make sure that the Guardian is securely mounted, and not "flapping around" during aggressive maneuvers
•
If, during engine run-up, you notice the servos shifting or moving around inappropriately, you may need to move the Guardian away from sources of R up, you notice the servos shifting or moving around inappropriately, you may need to move the Guardian away from sources of RFI (such up, you notice the servos shifting or moving around inappropriately, you may need to move the Guardian away from sources of R
as a powerful BEC or motor). Or, you may need to mount the Guardian differently to reduce excess as a powerful BEC or motor). Or, you may need to mount the Guardian differently to reduce excessive vibration.
Copyright 2013 Eagle Tree Systems, LLC Eagle Tree Systems, LLC
2D Heading Hold Gain
Turn Coordination
gle: The maximum target Pitch/Roll
is enabled, these fields allow
150% servo deflection ranges are
s on my transmitter?
defined Dual (Expanded) Servo Rates
Roll Angle(s)", making it feel like you
Mode may not be able to prevent inverted maneuvers, even at high gains. In 3D Mode, expanded servo rates will result in
he Guardian set the direction of stabilized servo movement, as well as the gain level.
. In 3D Mode, expanded servo rates will result in
100% servo deflection, which will disable stabilization.
ll not deflect very much to oppose your flight movements in the Yaw axis. This is
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servo rates, the Radio Stick Menu may