CHAPTER 5
96 SmarTrax™ MD Calibration & Operation Manual
• Message Frequency - Displays GGA input message rate.
FIGURE 41. System Diagnostics and PWM Setup Screens
• PWM Values - Displays SmarTrax MD PWM minimum, maximum, and gain values. Adjustment of these values
is not typically necessary. Raven Industries recommends leaving these values as configured by the SmarTrax
MD system unless a technician instructs you to modify the settings. Pressing Modify PWM Settings displays the
PWM Setup screen to allow manual adjustments to the PWM values.
◦ Modify PWM Settings - Displays the PWM Status screen to allow manual adjustments of the PWM
values.
◦ Auto or Manual - Toggles between automatic and manual control of the PWM values. If “Manual” is
displayed in the icon, the system is in manual mode and is no longer learning the PWM minimum values.
Pressing the button will switch SmarTrax MD to automatic mode. If “Auto” is displayed, the system is in
automatic mode and is learning the PWM minimum values. Adjusting a PWM Minimum value will switch
SmarTrax MD to manual mode. Raven Industries does not advise leaving the system in auto mode is the
PWM minimum values may change unpredictably.
FIGURE 42. PWM Setup and Manual Steering Screens
• Left and Right Manual Steer - Used to manually test the SmarTrax MD system. Select one of the values or the
Min or Max button to steer the machine. If it does not respond as expected, the PWM values may need to be
adjusted.
• Target Current - Displays the expected current level for the mechanical drive to turn the steering wheel.
• Actual Current - Actual Current displays the amount of current the system is using to steer the machine.
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