Holonomic Drive Help

[nydnh01]

When programming in Labview the rotation does not work on Mecanum-Cartesian when testing on the robot. We wired the throttle to the rotation and when pressed the robot loses connection. Does anyone know how to fix this problem?

[team3039]

I believe that Rotation is supposed to be hooked up to the X-Axis of the Right Joystick.

[Ether]

Originally Posted by team3039

I believe that Rotation is supposed to be hooked up to the X-Axis of the Right Joystick.

You can hook it up to any axis on any joystick you want to. It just changes the operator interface.

[nydnh01]

We are actually using a Logitech Extreme 3D joystick. We used this drive on our 2011 robot on this joystick and it worked perfectly.

[Mark McLeod]

A couple of the potential causes might be:

• Lack of proper 12v digital sidecar power. Check that the three power lights are all bright and cheerful-5v/6v/12v.
• Low battery. Watch your battery voltage display on the Driver Station as it happens.
• Radio 12v power coming from an unregulated 12v connection rather than the special 12v connector reserved for it. Watch the radio power lights to see if they are going through a reboot sequence after it happens.
• cRIO rebooting due to power brownout. Watch the RSL to see if it stops blinking when the robot fails.
• Motor controller fault. Watch the motor controller status lights for unusual blink patterns when it happens.
• Breakers popping. Listen for clicks from the Power Distribution Panel as the robot fails and watch the motor controllers for momentary status light loss.
• Poor power connections somewhere between the battery and the other critical components. Check power pathways with a multimeter to see how closely it matches the voltage measured at the battery terminals.
• Check the Driver Station Diagnostics tab for unusual messages or status.
• Above all, watch and note what every status light and indicator are telling you at the time of the failure.