Subject: Forward L.S. Forward L.S. - ?500 + axis: [AXIS n] Forward L.S. The axis has reached end of forward travel. CNC in alarm status and message given. Make sure that the limit switch operates correctly. If the axis has effectively reached end of travel, move it in the opposite direction in JOG mode. If the machine has not been sized, manual movement of an axis may bring this to the limit switch if the person operating the axis does not pay attention and stop it in time. If the machine has been sized, this alarm may occur as a consequence of another axis fault (e.g. follow error near the limit switch). It may also occur if the maximum axis limit has not been set correctly.
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