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AX2500/2850 Motor Controller User’s Manual 47
Self-Test Mode
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.
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 AX2500/2850 will continuously send a string of characters
on the RS232 output line. This string will contain 12 or 13 two-digits hexadecimal number
representing 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
• Encoder Speed or Position if module is installed
The entire string is repeated every 208 or 224 milliseconds (depending whether the
encoder module is present) with the latest internal parameter values. This information can
be logged using the Roborun Utility (see “Viewing and Logging Data in Analog and R/C
Modes” on page 172).
The string and data format is described in “Analog and R/C Modes Data Logging String For-
mat” on page 102.
Important Warning
Disconnect the Motor Power (thick red wires) from the battery and power the con-
troller by applying 12V on the Power Control input if you do not wish the motors to
be activated while in Self Test mode.
This could be the case if you only wish to use the Self Test sequence to read the software
revision number or to monitor the joystick capture.
= Software version 1.7
FIGURE 20. Press and hold “Set” to display version number and enter self-test