Robotronics Patches & Pumper, Руководство по эксплуатации, Страница: 34 / 63

30
this test, in order to see which wheel is operating. The motor wires are blue/yellow
wires hanging down below the electronics box. You may have to remove the robot
battery, to make the 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.