FeiYu Tech X4 Manual - Front
Guilin Feiyu Electronics Co., Ltd.
Page | 5
Step 4 : Test The Motor Rotation
1. After installing the FC, activate the quad and carefully check that the propeller
rotation is as shown above.
2. Lastly install the top fuselage plate to protect the FC and RC Receiver.
Step 5: Voltage Level Indication via Fuselage LED Flashing
1. When flying, the white LED on the middle fuselage will begin flashing to indicate
the voltage of your flight battery, as follows:
Battery Voltage
>11.5V
11.1V~11.5V
10.8V~11.1V
<10.8V
LED Flash
SOLID
Slow flash
Medium flash
Fast flash
Indication
Enough power
Voltage down
Land now
Emergency
Landing
Front
1
2
3
4
QuadCopter Layout:
1
= ESC 1 CCW
2
= ESC 2 CW
3
= ESC 3 CCW
4
= ESC 4 CW
CW = clock wise
CCW = counter clockwise
END of X4 MANUAL
Dated: 24
th
July 2011