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Copyright 2013 Eagle Tree Systems, LLC                                                           Page 13 
 

Issue:  Reset Level Flight doesn’t seem to work. 

Solution: Make sure the Guardian is mounted approximately level.  Mounting offsets in excess of 25 degrees from flat or upside-down can reduce performance and will 
cause the Reset Level Flight to fail. 
Solution: Make sure the endpoints of the switch you are using with the Mode input are configured to approximately -100%, 100%.   This is required for the Reset Level 
Flight and other Mode switch Configuration Gestures to work correctly. 

 

Issue:  My servos are getting stripped or are burning out due to excessive deflection. 

Solutions:  

 

Reduce the gains on the channels that are experiencing too much deflection.  This reduces both load and deflection. 

 

Use the Custom Servo Ranges option in the PC App to specify limits to the servo deflections.  When properly configured, this guarantees that the servos will not 
bind or deflect beyond their engineered limits. 

Issue:  In the PC software, the Artificial Horizon Indicator (AHI) display is not correctly showing level, even when my model is sitting level on the table. 

Solution:  The AHI will not show true level if the Guardian is in 3D mode.  In this mode, the AHI shows level based on the last time 3D lock was invoked (stick 
centered).  Please switch the Guardian to 2D mode if you want the AHI to show true level. 

 

Issue: When I increase the Gain on the Guardian, I see one or more control surfaces move, even though my model is level. 

Solution:  This can happen if the Guardian does not know your latest trim settings.   Make sure you perform the “Reset Level Flight and Trims” or “Reset Level Trims” 
operation (described above) each time you change your model’s trim settings.    

 

Issue: My USB cable does not fit well in the Guardian’s USB connector. 

Solution:  We have received a few reports of tight-fitting USB cables.    The Micro-B USB cable sold by Eagle Tree fits correctly, and we’ve also observed that Kindle

TM

 

USB cables and the mobile phone USB cables we have tested in-house fit well also.  Note that “mini” USB cables will not fit! 

Regulatory 

The Guardian has been tested with a typical installation and was found to comply with EU EMC requirements. As with any change or addition to an R/C system, you are 
strongly advised to carry out a range and performance check before operating the equipment. 

 

Limited Warranty 

Eagle Tree Systems, LLC, warrants the Guardian 2D/3D stabilizer (the Product) to be free from defects in materials and workmanship for a period of one (1) year from the 
date of original purchase.    This warranty is nontransferable.   If your unit requires warranty service during this period, we will replace or repair it at our option.   Shipping 
cost to us is your responsibility.  To obtain warranty service, email 

[email protected]

 for further instructions.      

 

This limited warranty does not cover:  

 

The Software.   See the Software license agreement for more information on Software restrictions. 

 

Problems that result from:  

o

 

External causes such as accident, abuse, misuse, or problems with electrical power  

o

 

Servicing not authorized by us  

o

 

Usage that is not in accordance with product instructions  

o

 

Failure to follow the product instructions  

 

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE (OR 
JURISDICTION TO JURISDICTION). OUR RESPONSIBILITY FOR MALFUNCITONS AND DEFECTS IN HARDWARE IS LIMITED TO REPAIR AND 
REPLACEMENT AS SET FORTH IN THIS WARRANTY STATEMENT. ALL EXPRESS AND IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING, BUT 
NOT LIMITED TO, ANY IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE 
LIMITED IN TIME TO THE TERM OF THE LIMITED WARRANTY PERIOD AS DESCRIBED ABOVE. NO WARRANTIES, WHETHER EXPRESS OR IMPLIED, 
WILL APPLY AFTER THE LIMITED WARRANTY PERIOD HAS EXPIRED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED 
WARRANTY LASTS, SO THIS LIMITATION MAY NOT APPLY TO YOU.  

WE DO NOT ACCEPT LIABILITY BEYOND THE REMEDIES PROVIDED FOR IN THIS LIMITED WARRANTY OR FOR CONSEQUENTIAL OR INCIDENTAL 
DAMAGES, INCLUDING, WITHOUT LIMITATION, ANY LIABILTY FOR THIRD-PARTY CLAIMS AGAINST YOU FOR DAMAGES, FOR PRODUCTS NOT 
BEING AVAILABLE FOR USE, OR FOR LOST DATA OR LOST SOFTWARE. OUR LIABILITY WILL BE NO MORE THAN THE AMOUNT YOU PAID FOR 
THE PRODUCT THAT IS THE SUBJECT OF A CLAIM. THIS IS THE MAXIMUM AMOUNT FOR WHICH WE ARE RESPONSIBLE. SOME STATES DO NOT 
ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT 
APPLY TO YOU.  

As Eagle Tree Systems has no control over use, setup, final assembly, modification or misuse, no liability shall be assumed nor accepted for any resulting damage or injury. 
By the act of use, setup or assembly, the user accepts all resulting liability. If you as the purchaser or user are not prepared to accept the liability associated with the use of 
the Product, purchaser is advised to return the Product immediately in new and unused condition to the place of purchase. 

 

Spektrum

 TM

 and all other brand and product names are trademarks of their respective holders.  

Summary of Contents for Guardian 2D/3D Stabilizer

Page 1: ...ething is not clear just ask We d much prefer to take the time to answer your questions rather than having you waste your valuable time struggling with an issue To get help visit the Eagle Tree Guardian support thread at http www rcgroups com forums showthread php t 1596644 Chances are someone has posted a solution to your problem already If not posting your problem there will get a very quick res...

Page 2: ... control stick is moved to turn this heading is reset and subsequently relocked as soon as the stick is centered again Automatic Turn Coordination When enabled Automatic Turn Coordination will cause the Guardian to employ the step on the ball method of actuating your Rudder for you As you enter a banked turn the Guardian will assert a coordinating response on the Rudder automatically This deflecti...

Page 3: ...all stabilization gain if you are using the gain knob o Observe how your servos react as you pitch roll and yaw your plane o Adjust the Guardian Pitch Roll and Yaw axis dials with a screwdriver so the servo for each axis deflects in the correct direction to bring your model back to level A centered dial asserts zero stabilization on that axis Turning it clockwise or counterclockwise increases the ...

Page 4: ...ts Receiver Connection Requirements The number of connections between the Guardian and your receiver depends on type and capabilities of your model the level of Guardian in flight control you require and the number of spare receiver channels you have For very basic models the Guardian is capable of operating with only the Elevator input and Aileron input connected BEC Receiver Battery Power Requir...

Page 5: ...Good and Bad Ways to Mount the Guardian 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 o...

Page 6: ... Guardian 2D 3D Stabilizer uses accelerometers and gyroscopes to measure the orientation of your model relative to the local direction of Earth s gravity In addition it interprets Pitch and Roll attitudes commanded by your Elevator and Aileron stick movements respectively With this information it is able to determine the error between your requested flight attitude and your plane s true orientatio...

Page 7: ... more information on this Setting Master Gain control to the minimum will lower the overall gain to zero while positions in between will yield proportional gain Lowering the individual gain dials on the Guardian will lower the gain for that axis only and allow fine tuning This might be desirable if for instance oscillation is encountered on one axis but not the others One possible strategy for set...

Page 8: ...e information After this startup blink sequence the LED will display Steady State status as described below LED Indication during Steady State Solid On 3D Mode One repeated blink 2D Mode Solid Off Stabilization Disabled Additional LED Messages 2 repeated blinks Radio Stick Menu is active 3 repeated blinks USB is connected 4 repeated blinks Error condition Error type is indicated by a pause and a n...

Page 9: ...when the servos of your model stop their normal stabilization deflections and instead perform a short twitch followed by no further movement Also the status LED will blink in a two blink sequence when the menu is active Menu Navigation Once in the menu you will start at menu item 1 in the List of Features and Options section below The menu items can be navigated by deflecting the Aileron and Eleva...

Page 10: ...heir airplane can disable this feature for a rate gyro experience 3D Mode Only Enabling Direct Rate 3D Stabilization is strongly recommended if this mode is set to Off Radio Stick Menu Options 1 Off 2 On 8 Derivative Gain Tunes the dampening derivative gain of the airplane Increasing this value will strengthen the rate gyro behavior of the Guardian while leaving the 2D leveling and 3D Heading Hold...

Page 11: ...ounting offsets This step will fail if either the Pitch or Roll is greater than 25 degrees 10 Save Configuration Records your current settings as set on Guardian to a txt file to load later Useful for saving profiles for individual airplanes 11 Load Configuration Recovers the settings from a previously saved configuration file and writes them to the connected Guardian 12 Factory Reset Restores the...

Page 12: ...ng 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 Eagle Tree Systems LLC Page 12 Controls the 2D Heading Hold gain When set above zero this option determines how hard the Guardian will assert a roll to k 2D Heading Hold Gain Controls the Automatic Turn Coordination gain In...

Page 13: ...rkmanship for a period of one 1 year from the date of original purchase This warranty is nontransferable If your unit requires warranty service during this period we will replace or repair it at our option Shipping cost to us is your responsibility To obtain warranty service email support eagletreesystems com for further instructions This limited warranty does not cover The Software See the Softwa...

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