Robotronics Buzz E Instrukcje Operacyjne Pobierz pdf (Strona 34)

Drive Motor System

swap. If now the wheel/motor on the side in question operates and sounds fine then the

motor is good.

-Drive circuit-(motor control) If the drive motor is good, the drive circuit (motor control)

could be the cause of the fuse blowing. If this is the case, check for broken or shorted

wires and if nothing is found, contact the Robotronics' service department for assistance.

One drive motor operates only in one direction:

The motor control circuit is likely the cause

of this. Contact the Robotronics' Service Department.

The robot is not driving straight:

(Veering when you drive)

Note: Be sure that both motors are operating forward and reverse at about the same speed,

and that the motor pulley set screws and drive belts are tight. If this adjustment is done when

there is something else wrong other than the adjustment, it will be difficult to get this adjustment

back after the actual problem is corrected. This adjustment would be done, for example, if the

robot veered beyond reasonable amounts when driving the robot forward, but both drive motors

are working.

To locate the adjustment, see the Robot Main Electronics Box diagram in the Appendix. They

are labeled Forward Drive adjust and Reverse Drive adjust. You will need a small flat head

precision screwdriver to make the adjustment. The cover of the main electronics box would

need to be removed to access the adjustment. Take the cover of the box completely off and set

outside the robot so that it cannot touch the post(s) of the robot battery.

CAUTION

The robot battery posts should never contact the metal of the main electronics box or the

metal of the drive base. This will result in damage to electronic components especially

inside the main electronics box.

Forward Drive Adjust Pot

- Effects forward straightness of drive.

Robot veering left- Adjust it counter-clockwise

Robot veering right- Adjust it clockwise

Reverse Drive Adjust Pot-

Effects reverse straightness of drive.

Robot veering left- Adjust it counter-clockwise

Robot veering right- Adjust it clockwise

If the robot veers, the reason is that one motor is going faster than the other at any given

position of the joystick. For example if at full speed, the robot veers to the right, this means that

the left motor is going faster than the right motor. To correct this you would adjust the forward

drive adjust pot clockwise to slow down the left motor in the forward direction. You may need to

do some trial and error to get it just right. To do this, adjust the necessary adjustment pot very

slightly and then drive the robot to see if the robot is driving straighter. Continue the adjustment

until it drives suitably for you. It is best to use full speed during the adjusting, because this will

act as a good reference point.

 Contact the Robotronics' Service Department if you need any assistance or parts.

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Robotronics Buzz E Instrukcje Operacyjne Strona 34

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