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Overtravel Alarm Codes

FANUC Overtravel (OT) Alarm Codes List

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Check out the list below for a list of OT alarm codes throwing errors in your CNC controls.

Need further detail and the shortest path to getting your machinery back up and running? Contact the FANUC pros at Tri Star CNC Services for free over-the-phone support. We’ll talk you through troubleshooting and clearly explain your options.

Contact FANUC component experts at Tri Star CNC Services for further support with OT error alarm codes.
CNC overtravel alarm troubleshooting

FANUC Overtravel (OT) Alarm Codes

Alarm CodeMessageDescription
500 OVER TRAVEL : +n Exceeded the n–th axis (axis 1–8) + side stored stroke check I.
(Parameter No.1320 or 1326 NOTE)
501 OVER TRAVEL : –n Exceeded the n–th axis (axis 1–8) – side stored stroke check I.
(Parameter No.1321 or 1327 NOTE)
502 OVER TRAVEL : +n Exceeded the n–th axis (axis 1–8) + side stored stroke check II.
(Parameter No.1322 )
503 OVER TRAVEL : –n Exceeded the n–th axis (axis 1–8) – side stored stroke check II.
(Parameter No.1323)
504 OVER TRAVEL : +n Exceeded the n–th axis (axis 1–8) + side stored stroke check III.
(Parameter No.1324 )
505 OVER TRAVEL : –n Exceeded the n–th axis (axis 1–8) – side stored stroke check III.
(Parameter No.1325 )
506 OVER TRAVEL : +n Exceeded the n–th axis (axis 1–8) + side hardware OT.
507 OVER TRAVEL : –n Exceeded the n–th axis (axis 1–8) – side hardware OT.
508 INTERFERENCE: +n
(T series (two–path control))
A tool moving in the positive direction along the n axis has fouled another
tool post.
509 INTERFERENCE: –n
(T series (two–path control))
A tool moving in the negative direction along the n axis has fouled another
tool post.
510 OVER TRAVEL: +n Alarm for stroke check prior to movement. The end point specified in a
block falls within the forbidden area defined with the stroke check in the
positive direction along the N axis. Correct the program.
511 OVER TRAVEL: –n Alarm for stroke check prior to movement. The end point specified in a
block falls within the forbidden area defined with the stroke check in the
negative direction along the N axis. Correct the program.
514 INTERFERENCE : +n The rotation area interference check function found interference on the
plus side of the n axis.
515 INTERFERENCE : –n The rotation area interference check function found interference on the
minus side of the n axis.


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Overtravel Code RepairUse the description of the FANUC alarm code to guide your troubleshooting. If you’ve hit a dead end and need further support, please contact us and we’ll help you find the path to a solution.

 

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