Quote:
Originally Posted by PSHRobotics
Would a circuitry problem with one jag cause there to be problems for the other jag? If there is some movement from a specific side when the robot is not "responding" it is only at the very moment the joystick is pushed forward. Most of the "driveless state" the robot is stationary and it does not appear to be attempting to move (not fully sure).
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Can you explain the second bit a little more? I'm not sure I'm understanding it correctly. Are you saying that when you had the problem, it would happen as soon as you start moving that side?
There's specific wiring problems that could affect both jags. Anything affecting the digital sidecar would affect all jags, servos, and digital IOs. Anything that affected the main voltage of the robot would also do it. Basically, that kind of wiring problem would most likely affect all the motors on your robot, a symptom you haven't mention yet.
Other wiring faults that could be causing this are simple ground faults if one of you output terminals is connected to the frame of the robot, weird problems become possible. If that's happened at two different jags, then weird things are likely. The potential is short circuit currents flowing through the robot frame under certain conditions.
Something else I'm considering is some sort of weedy/questionable connection on the power side of your jaguar. If it occasionally wiggles loose(r) then large current draws would drop the input voltage below the minimum volts the jaguar's looking for, which would cause a fault. But that's likely to be a bidirectional problem, so probably not as likely here.