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Basic Set-up

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Leaderboard Full Board - J5 Minion 

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Leaderboard Zoomed In – J5 Minion 

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(Note: lighting board may not look exactly like the image) 

GND 

5V 

Cruise Set SW 

Cruise EnableSW 

Reverse SW 

Forward SW 

Regen SW 

Brakelight 

Extra Conn 

Leaderboard Connector (J1 on the bottom of the Lighting Board, 1x9) Diagram: 
 

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To connect the JTAG connections on the nucleo's programmer to the leaderboard, follow the pictures below. Starting from the top of the nucleo board, pin 1 is VCC, pin 2 SCK, pin 3 is GND, and pin 4 is SWO. 

  • Connect the Nucleo’s micro-USB port to laptop (debugger control)

10. If contactors are needed for the testbench, connect the array-bypass and motor-bypass contactors to the leaderboard using the contactors board. 

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  1. Set up the Leaderboard: hook up the motor CAN connector (type TE_4-2172079-2 connector at the top of the board) to the motor controller, hook up the CAN terminator (3x2 Molex connector with resistor soldered in), and hook up the main power connector to 12V. These are the only strictly necessary connections, specific tests might require more 
  2. Turn the 12V power supply on (both the motor controller and Leaderboard should be on) 
  3. Turn the high-voltage power supply on (it should start around 15-20V) 
  4. Slowly increase the input voltage. Stop at nominal voltage, around 96V. (Insert picture here) 
  5. Tests running on the testbench need to ensure that no regen braking will take place. This is usually done by hardcoding the velocity sent to the motor as some unattainable value (say 20,000 RPM) 
  6. If anything seems off, turning off the 12V power supply to the motor controller will immediately cut off power to the motor 

If Testing Regenerative Breaking 

  1. Connect SB5100 diode in series with positive terminal of 120V power supply! 
  2. Connect 4 250 Ohm 25 Watt resistors in series! 
    1. Connect the 4 250 Ohm resistors in parallel with the 120V power supply (ensure the resistors are connected to the diode and not directly to the 120V power supply on the positive end)! 

** WITH THIS SETUP SET THE 120V POWER SUPPLY TO A MAX OF 90V TO TEST REGEN ** (Diode will be unhappy 🙁) 

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^ SB5100 diode connection ^

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^ 250 Ohm resistors in series ^ 

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