
21
Section 4.1.8
Control Box (Front View)
The above illustration shows the front panel of the Control Box. The motor is controlled using
the front panel touchpad. The power button turns the front panel on/off (once the master
power button is turned on – located in the rear of the Control Box). Two buttons are used to
control the adjustment of the speed of the motor (press and hold down to quickly adjust the
motor speed), while two more buttons are used to control the direction (forward or reverse).
LEDs are present on the front panel to indicate the direction that the motor will travel once the
motor is engaged. To engage the motor, your thumb must be placed inside the thumb-switch
(highlighted red). Removing your thumb from this switch will instantly disengage the motor.
This thumb-switch system was chosen as a safety feature to prevent the scanner from
somehow breaking away from the operator and colliding into another object. Two digital
displays are present on the front panel. One keeps track of the power supply voltage for the
motor (Battery Box #2), while the other displays the motor speed (represented as a percentage,
ranging from 00 to approximately 97). Since a stalled motor generates a significant amount of
back current, the lower speed percentages have been curved upward (00% speed value does
Motor Lift Assembly Lever
Thumb-Switch (Place thumb
here to engage motor –
Remove thumb to disengage)
Power Button – Only works when
Master Power Switch is On
(Located on rear of Control Box)
Digital Display for
Motor Speed
Digital Display for
Power Supply Voltage
(for Motor – Battery
Box #2)
Motor Direction Buttons
(Up – Forward, Down – Reverse)
Motor Speed Adjustment Buttons
(Up-Increases Speed, Down-
Decreases Speed)
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