RoboteQ AX2550/2850 user manual Activating the Accessory Outputs

Activating the Accessory Outputs

Notes:

If you attempt to calibrate the joysticks while the radio is off or not connected to the con- troller, the calibration data will not change and the previously stored information will con- tinue to be used.

If calibration is performed with only one R/C channel connected to the controller, then only the joystick that is active will be calibrated. The other channel will keep its original settings.

A minimum amount of travel is required between the min, max and center joystick posi- tions. If, while calibrating, the joystick has not been moved far enough from either side of the center position, the controller will automatically include a minimum of travel to ensure proper and safe operation. In most cases, this creates no undesired effect to the driving characteristics of the robot.

R/C calibration only applies to the channel 1 and channel 2 inputs. The accessory activation channel (channel 3) is preset at the factory and cannot be changed.

Important Notice

To ensure that only stable pulses are present, the R/C transmitter and radio must be On before entering joystick calibration.

Activating the Accessory Outputs

The AX2500/2850 has two general purpose outputs that may be turned on and off using a third R/C channel on the radio.

Output C is a buffered output capable of driving a 2A device at up to 24V. Output D is a non-buffered output that requires an external relay to drive high current loads. Details on how to wire these outputs to user accessories can be found at “Connecting Sensors and Actuators to Input/Outputs” on page 49.

Both outputs are controlled from a single joystick on Channel 3.

Output C is activated by pushing the joystick to the maximum position. The output turns back off when the joystick is returned to the center position

Output D is a toggle output. When the joystick is moved from the center to the minimum position, the output changes state (to On if it was Off, or to Off if it was On). Beware that because this is a toggling output, it may be accidentally activated by noise in the radio reception. Use this output to drive safe accessories. Use only with a good quality radio, such as a PCM radio.

Note: Channel 3 and Output D are not available on the X2850, or on the AX2550 equipped with the encoder module.

AX2500/2850 Motor Controller User’s Manual 83