CAUTION
After installing the gyro, the servos will move more frequently than before, it is highly recommended that a reliable UBEC or ESC be used to provide sufficient working current for the servos and other devices, otherwise the gyro may become unstable by an occasional voltage drop. To protect voltage, it is recommended that you use the included large capacitor at any free slot of the gyro or the receiver.
A3 User Manual V1.0 (also applies to F/W V2.0) Setting Menu
Press and hold down the button for more than 2 seconds (long press), release it when the LED starts to blink Blue&Red rapidly. In the setting menu, the LED should be blinking Blue&Red for N times in a loop with the sequence by the chart below. N stands for the number of the setting function.
Functions
When you reach the function that you wish to operate in, quickly press the button once (short press) to enter it.
Parameters
After entering a function, the color of the LED shows you the settings currently selected. Each short press of the button advances the option to the next value. When you finish making your selections, just wait for 5 seconds then system will save the modified and back to the setting menu automatically. The colors corresponding to the options for each parameter are as shown in the chart above. (* is the default setting).
Exit Setting Mode
When back to the menu, long press the button again to exit the setting mode.
Stick Centering
A3 will perform a stick centering automatically every time it starts, so a manual centering is no longer needed. You just need to keep all the sticks ( except throttle) in their middle position before power on the gyro, and don't move them while initializing. You can change the trims or sub-trims settings in your transmitter anytime you need, the new center positions will be relearned and saved by the controller next time it starts.
Level Calibration
This function is only used for auto-balance mode, to establish the appropriate level attitude of the plane. After first time installation, or if the plane drops down or up when switch to auto-balance mode, you will need to perform a level calibration to make the gyro re-learn a new correct level reference. Follow the steps as shown below.
- Power on the plane and wait until the initialization is done.
- Place the plane on the ground horizontally. In order to get a better result, it is recommended that you would need to make the nose of the plane slightly upwards.
- Enter setting mode and select function 9, when the LED starts to blink Blue & Red, it means that the calibration is being performed. It will take you about 5 seconds, don't move the plane during this period.
- After the calibration is done, exit the setting mode and fly it again.
Vertical Calibration
This function is only used for auto-hover mode, to establish the appropriate vertical attitude of the plane. After first time installation or if the plane cannot hold hovering correctly when operating in auto-hover mode, you will need to perform a vertical calibration to make the gyro re-learn a new hovering attitude. Follow the steps as shown below.
- Power on the plane and wait until the initialization is done.
- Pick the plane up and make it vertically, both in elevator and rudder directions.
- Enter setting mode and select function 10, when the LED starts to blink Blue & Red, it means that the calibration is being performed. It will take you about 5 seconds, don't move the plane during this period.
- After the calibration is done, exit the setting mode and fly it again.
Device Reset
Press and hold the button while power on the controller, you will see both Blue and Red LED turn on. Keep holding the button for more than 4 seconds and don't release it until you see the LED flashes Blue & Red twice, which indicates that all the settings have been restored to the factory default.
Gain Adjustment
There are 3 knobs on the controller (GAIN1, GAIN2 and GAIN3), they are used to adjust the gyro gain for each flight mode separately. Clockwise for increase, anticlockwise for decrease. The gain is affected by many factors there is no standard answer to that how much it should be. You need to fine-tune to get the best result during flights. We suggest you always start with a lower volume for the first flight and then increase it gradually. The basic gain (normal gain) will take effect in all flight modes, it's the most basic feature of the gyro, don't turn it to 0% anyway. In order to get the best performance in auto-hover mode, you could try to turn the hover gain on full volume.
Remote Master Gain
The GAIN is used to control the master gain remotely. You can make a linear adjustment by using a knob or slider on your transmitter, or make a 3-level gain control using a 3-way switch. The master gain is just an optional channel that the gyro can still work properly without connecting this channel.