Compass Calibration - dji A2 Flight Control System User Manual

1.3 Compass Calibration

The Compass can assistant the GPS to position the aircraft, which is very important during flight. As we know,
the compass is very sensitive to electromagnetic interference, which will cause abnormal compass data, and lead
to poor flight performance or even flight failure.
It is recommended to calibrate the compass outdoors after the Controller Unit finds 7 or more GPS satellites.
Regular calibration enables the compass to keep optimal performance.
Calibration Cautions
(1) DO NOT calibrate your compass where there is strong magnetic interference, such as magnetite,
car park, and steel reinforcement under the ground.
(2) DO NOT carry ferromagnetic materials with you during calibration, such as keys or cell phones.
(3) Compass Calibration is very important; otherwise the flight control system cannot work.
Calibration Procedures
Choose an open space to carry out the following procedures.
Quickly flip the control
mode switch
Manual*
Start GPS
cali
GPS->Manual->GPS
Flip 6~10 times
Start horizontal calibration
*You can also use the ATTI 1 or ATTI 2 to
replace the Manual during switch flipping.
Situations that require recalibration
Situations
Compass Data abnormal
Flying field altered
Mechanical alteration
Drifting during flying
Attitude errors
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Compass Calibration MUST be done for the first time use.
o
360 Rotate the aircraft
Start vertical calibration
Manual
GPS
GPS->Manual->GPS once
LED blinks yellow and green alternatively(
Flying field has changed over a long distance.
The mounting position of GPS-COMPASS PRO module changes.
Electronic units such as Controller Unit, CAN-HUB, battery etc. have been added,
removed, remounted or other alterations.
Mechanical structures of the aircraft has changed
Evident drifts occurred in flight such as the aircraft doesn't fly straight
LED often blinks error indicator when the aircraft turns around.
14 |
horizontally
Descriptions
(
∝
o
360 Rotate the aircraft
vertically (Nose downward)
Control
Mode LED
Succeed
Re-calibrate
)).
Fail