RoboteQ Self-Test Mode, = Software version 1.9b, AX3500 Motor Controller User’s Manual

Models: AX3500

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Self-Test Mode

Self-Test Mode

When the input is pulled high, all the power MOSFETs are turned Off so that the motors are effectively disconnected from the controller.

This function is typically used to create a “dead man switch” when the controller is driven using an analog joystick. The motors will be active only while the switch is depressed. If the switch is left off for any reason, the motors will be disconnected and allowed to free- wheel rather than coming to an abrupt stop.

Self-Test Mode

The AX3500 incorporates a simple Self-Test mode that performs the following functions:

Display the software revision number on the LED display

Ramp each motor up and down in both directions

Internal parameters on the serial port output

The Self Test mode can be conveniently initiated using only the controller’s switches so that no radio or computer is needed.

To enter the Self Test mode, press and hold the Set button while resetting or powering up the controller.

After a few seconds, the LEDs will display a sequence of two numerical digits and an optional letter separated by dashes as shown in the examples below.

= Software version 1.9b

FIGURE 25. Press and hold “Set” to display version number and enter self-test

After these digits are displayed, the controller will attempt to power the motors. Motor 1 will be ramped from stop to full speed forward to full speed reverse and back to stop. Then the same operation will repeat on motor 2. After both motors have completed their ramps, the software revision will be displayed again and the motors will be ramped again. This sequence will repeat itself indefinitely until the controller is powered off or reset.

While in the Self Test mode, the AX3500 will continuously send a string of characters on the RS232 output line. This string will contain 13 two-digits hexadecimal number repre- senting the 13 following operating parameters.

Captured R/C Command 1 and 2

Power Applied to Controller’s output stage

Values applied to Analog inputs 1 and 2

Amps on channel 1 and 2

Internal Heat Sink temperatures 1 and 2

Main Battery voltage

Internal 12V voltage

AX3500 Motor Controller User’s Manual

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Page 53
Image 53
RoboteQ user manual Self-Test Mode, = Software version 1.9b, AX3500 Motor Controller User’s Manual