Fanuc alarm
An axis tried to move past its software travel limit.
An axis tried to move past its software travel limit. 500 is the plus direction, 501 the minus direction. The machine stopped before hitting anything.
Lock out the machine before reaching into it. Never bypass a door switch or interlock to clear an alarm.
Usually an operator fix. Call a tech if the limits seem to have moved or the machine lost its zero.
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An axis tried to move past its software travel limit. 500 is the plus direction, 501 the minus direction. The machine stopped before hitting anything.
Wrong work offset or tool length offset. A program error or a move to the wrong position. Jogging too far. Reference position lost after a battery problem.
Jog the axis back the other way, then reset. Check the work offset and tool length offsets the program uses. Run the program in single block near where it stopped. If it happens on moves that always worked, check for an APC (300) alarm. Usually an operator fix. Call a tech if the limits seem to have moved or the machine lost its zero.
Alarm numbers and text can differ by control model, software version and machine builder. This page is a starting point from people who have worked on these machines, not a replacement for your machine builder's manual.
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