RoboteQ AX500 manual Operating the Controller in R/C mode

R/C Operation

to the controller does not inject power into the controller. The figure below show the cable with the loop cut. Figure 56 shows the equivalent electrical diagram.

Channel 3:

Channel 2

3: Channel 1 Command Pulses

Channel 14: Channel 2 Command Pulses

6: Radio battery (-) Ground

7: Radio battery (+)

8: Channel 3 Command Pulses

8

9

Pin 1

Cut red loop 15

FIGURE 55. Wiring when receiver is powered by its own separate battery

R/C Radio Power

Radio	R/C Radio
Battery

14

Cut

	7
R/C Channel 1	3
R/C Channel 2	4
R/C Channel 3	8

R/C Radio Ground	6
	5-13

Controller

Power

MCU

Controller

Ground

FIGURE 56. Electrical diagram for connection to independently powered RC radio

Operating the Controller in R/C mode

In this operating mode, the AX500 will accept commands from a Radio Control receiver used for R/C models remote controls. The speed or position information is communicated to the AX500 by the width of a pulse from the R/C receiver: a pulse width of 1.0 millisec- ond indicates the minimum joystick position and 2.0 milliseconds indicates the maximum joystick position. When the joystick is in the center position, the pulse should be 1.5ms.

Note that the real pulse-length to joystick-position numbers that are generated by your R/C radio may be different than the ideal 1.0ms to 2.0ms discussed above. To make sure that

86 AX500 Motor Controller User’s Manual Version 1.9b. June 1, 2007