RoboteQ AX2550 Manual Do Utilizador

106

This wiring option must be used when the controller is used with a RC receiver that is 
powered by its own separate battery. The red wire in the loop must be cut so that the 5V 
out from the controller does not flow to the radio, and so that the battery that is connected 
to the controller does not inject power into the controller. The figure below show the cable 
with the loop cut. Figure 69 shows the equivalent electrical diagram.

In this operating mode, the AX1500 will accept commands from a Radio Control receiver 
used for R/C models remote controls. The speed or position information is communicated 
to the AX1500 by the width of a pulse from the R/C receiver: a pulse width of 1.0 millisec-

8

9

15

Pin 1

Channel 1

Channel 2

3: 

Channel 1 Command Pulses

4: 

Channel 2 Command Pulses

6: 

Radio battery (-) Ground

7: Radio 

battery 

(+)

8: 

Channel 3 Command Pulses

Channel 3:

Cut red loop

FIGURE 68. Wiring when receiver is powered by its own separate battery

Controller
Power

R/C Radio Power

Cut

Radio

Battery

R/C Radio

R/C Channel 1

R/C Channel 2

R/C Radio Ground

Controller
Ground

R/C Channel 3

14

3

7

8

6

5-13

4

MCU

FIGURE 69. Electrical diagram for connection to independently powered RC radio