To reduce the risk and problems with setting up the CAN to USB necessary to communicate with the Tritium Motor Controllers, just use this Virtual Machine.

You can download it from the Google drive, under the Electrical\Virtual Machines directory.

Cable setup

1. Remove the terminator resistor off of the CAN cable that is attached to the motor controller and attach a CAN extender cable
   
2. Attach the CANUSB adapter to the CAN extender cable
   
3. You can now power the motor controller with a 12V power supply by plugging the jumpers is (red and black wire in the picture). AUX does not have to be on for this step, and neither does the car. The motor controllers should now be sending CAN messages.

Usage

1. Download and Import the Virtual Machine
2. Connect the CANUSB device
3. Enable the USB Filter for the LAWCEL CANUSB device
4. Open the WaveSculptor configuration tool (Downloads\WaveSculptor 20\WSDrvCtrls3_07.exe). You should see a window like this.
   
5. Set the baudrate as configured in the motor controllers. Note that a quick "Connect" and "Disconnect" most likely means your buadrate is incorrect. Our motor controllers should be configured either at 500kb/s or 1Mb/s (otherwise, try 250kb/s).

Controls

If attached to the HV power supply, be sure to set Velocity to maximum and never touch it again. You should only change Motor Current. Essentially, anything that could cause the motor to regen brake may damage the power supply. We have a blocking diode in place, but it's better not to encounter that situation at all.

If you ever need to change the direction, allow the motor to completely stop and set Motor Current to 0% before changing the Velocity.

Configuration

The configuration will automatically be downloaded from the motor controller. If you want to make changes, be sure to use Transfer > Upload to actually update the configuration stored in the motor controller.

Note that you can store up to 10 motor configs.

PhasorSense

Just spin the motor (either using the controls or with your hands) and hit Phase Acquire. It will fail if too fast or too slow.

Note that PhasorSense requires the motor controller to be configured at 1Mb/s.

ParamExtract

Set your bus voltage between 30-60V and the current limit to a little over 20A, then hit Extract Params.

Note that ParamExtract requires the motor controller to be configured at 1Mb/s.

Troubleshooting

• Try reinstalling the CANUSB DLL if you just can't connect at all.
• Make sure you're passing the CANUSB through to the VM. It should be exposed as a serial port.