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9
GCU Connection
Skip this chapter if you have the Phantom 2 version of the H3-3D gimbal, as it does not
come with a GCU.
The GCU must be connected to the flight control system before it is powered on.
Be sure to mount the camera onto the gimbal before powering on the aircraft and the
gimbal. Otherwise the servos may be damaged due to an incorrect center of gravity.
Re-calibrate the remote control whenever the NAZA-M firmware is upgraded.
Ensure all connections are correct, otherwise damage to the gimbal or the flight control
system may occur.
GCU Port Description
3S~6S
Connect to a battery for GCU or gimbal power.
G8
Connect to the G8 pin port on the gimbal for signal transmission.
Connect to a PC to upgrade the firmware using PC Assistant.
Connect to a flight control system.
Connect to a wireless video downlink module.
Connecting the GCU and Flight Control System
The GCU can be either vertically or horizontally installed on the Phantom 2. Follow the procedure
below to complete the connection between the GCU and the flight control system.
1. Upgrade the flight controller’s firmware and PC Assistant to the latest version, as shown in
the table below:
Flight Controller
A2
WKM
NAZA-M V2
NAZA-M
PC Assist
a
nt
V1.20 (or higher) V2.00 (or higher) V2.12 (or higher)
V2.12 (or higher)
Firmware Version
V2.10 (or higher) V5.22 (or higher) V3.12 (or higher)
V3.12 (or higher)
2. Complete the connection to the flight control system as shown on the table below. NAZA-M
users need a PMU V2 module (a NAZA-M V2 accessory) to make the CAN port connection.
Flight Controller
A2
WKM
NAZA-M V2 or NAZA-M
Main Controller and
PMU connection
Connect the PMU’s X1
port to the X1 port of the
Main Controller.
Connect the PMU’s
X1 port to the X1 port
of the Main Controller.
Connect the PMU V2’s X3
port to the X3 port of the
Main Controller.
PMU Power Cable
connection
Connect the power cable to a connecter, or solder the power cable to the
central board as required.
(GPS/Compass
Module and Flight
Control System
Connection
Connect the GPS/
Compass module to the
CAN 2 port on the A2.
Connect the GPS/
Compass module to a
spare CAN-Bus port
on the PMU.
Connect the GPS/Compass
module to the GPS port of
the PMU V2.
GCU Connection
