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2017 DJI All Rights Reserved.
29
A3 Pro Redundancy System
The Matrice 600 Pro’s A3 Pro ight control system is an upgraded version of the A3, which enhances
ight safety. The A3 includes a ight controller, GPS-Compass Pro and a PMU (Power Management
Unit). With two additional IMU Pro and GPS-Compass Pro modules, the A3 Pro provides triple-modular
redundancy, improving the system’s anti-risk performance.
Mounting Positions
Ensure that the settings of all the IMU Pro modules and GPS-Compass Pro modules are correct before
each ight. Identify the module according to the number of times the module’s LED blinks (e.g. If a
GPS blinks once, it is “GPS1”). Then enter each module’s corresponding mounting position into the
appropriate elds in DJI Assistant 2. The default mounting positions are shown as below:
Aircraft Nose
System Status
System status is indicated by LEDs on the GPS-Compass Pro, IMU Pro and Flight Controller modules.
LED Indicator Status
Green
The module is functioning normally and working as a part of the system when the
LED is blinking green.
Red The module is functioning abnormally when the LED is blinking red.
Blue
The module is functioning normally but not working as a part of the system when
the LED is blinking blue.
GPS3, LED blinks
three times
Mounting Position
X -102
Y -59
Z -166
IMU2, LED blinks
three times
Mounting Position
X 86
Y 17
Z -36
GPS2, LED blinks
twice
Mounting Position
X -102
Y 59
Z -166
IMU1, LED blinks
twice
Mounting Position
X 86
Y -17
Z -36
GPS1, LED blinks
once
Mounting Position
X 129
Y -5
Z -182
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