RoboteQ AX2550/2850 user manual Powering On the Controller

Powering On the Controller

Channel 3

Channel 2

Channel 1

Pin 1

15

3:Channel 1 Command Pulses

4:Channel 2 Command Pulses

6:Radio battery (-) Ground

7:Radio battery (+)

8:Channel 3 Command Pulses

8

9

Wire loop bringing power from controller to RC radio and

to optical isolators

FIGURE 4. R/C connector wiring for 3 channels and battery elimination (BEC)

This wiring - with the wire loop uncut - assumes hat the R/C radio will be powered by the AX2500/2850 controller. Other wiring options are described in “R/C Operation” on page 69 of the User’s Manual.

Important Warning

Do not connect a battery to the radio when the wire loop is uncut. The RC battery voltage will flow directly into the controller and cause permanent damage if its volt- age is higher than 5.5V.

Connecting the optional channel 3 will enable you to turn on and off two accessory out- puts. See “Connecting Sensors and Actuators to Input/Outputs” on page 49 and “Activat- ing the Accessory Outputs” on page 83 of the User’s Manual.

Powering On the Controller

Important reminder: There is no On-Off switch on the controller. You must insert a switch on the controller’s power wire as described in section“Connecting to the Batteries and Motors” on page 13.

To power the controller, center the joystick and trims on the R/C transmitter. Then turn on the switch that you have placed on the Battery Power wire or on the Power Control wire.

If the R/C transmitter and/or receiver is powered off, the display on the controller will alter- nate the letters spelling “no ctrl” to indicate that it is On but is not receiving a control sig- nal.

AX2500/2850 Motor Controller User’s Manual 15