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Page 59
17. Electronic Information - Motor Driver Board
Connection and LEDs
Motor Driver Board: QM20031
• J2, 5 pin connector for small motor wires to motor
driver board (Red: 5VDC (powers three hall sen-
sors); Black is Ground; Blue/Yellow/White are for
the hall sensors.)
• J6, 3 pin connector for large motor wires to motor
driver board which provides 3 phase DC power to
brush less DC motor.
• J5, 2 pin Black and Red power connection from
power supply.
• J3, 4 pin motor encoder to motor driver board.
NOTE: if this is disconnected from the motor
driver board the machine will run full speed
when the start/pause button is pressed.
• J1, 7 pin connection to Control Board
Motor Driver Board LEDs:
• D17, D18, D19 are LEDs for the hall sensors and
flash when the handwheel is turned.
(Circled top center)
• D8 is the sum LED for D17, D18, and D19 above.
(Circled top right)
• D20 is 5VDC power from control board to motor
driver board? (Circled top left)
• D13, 15VDC on motor driver board
(Circled bottom right)
• D14, 5VDC on motor driver board
(Circled bottom left)
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IMPORTANT: All the LEDs listed above (D17,
D18, D19, D8, D20, D13, D14) must be on for
the Motor Driver Board to function.
J2
J6
J5
J3
J1
