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Revision as of 13:36, 2 September 2011 by Efeldman (Talk | contribs) (Created page with " === Scenario === One or more axes travel at a high rate of speed, uncontrollably under any of the following circumstances: * When the user tries to jog the machine * When a fil...")
Scenario
One or more axes travel at a high rate of speed, uncontrollably under any of the following circumstances:
- When the user tries to jog the machine
- When a file runs
- When the cnc interface is started
Problem
There is likely no feedback from the motor, or the feedback is backwards.
Solution
- Immediately press the emergency stop on the machine.
- Ensure feedback in setup for all axes, starting with the one(s) that "ran away"
If there is no feedback on only one axis:
- Inspect the rectangular cable that plugs into the motor and control board.
- If this machine is NOT an LC/LP controller, inspect the scsi cable
- Swap the motor cables with another motor at the control board
- Swap the motor with another similar motor
- Contact Support with these results.
If there is no feedback on any axes:
- If this machine is NOT an LC/LP controller, inspect the scsi cable
- Contact Support with these results.
If there is feedback on all of the axes, including the one that "ran away"
- This is an unusual circumstance that can only arise from a replaced encoder or amplifier that was not wired properly. Verify this is the case and Contact Support with this information.