{"id":"ur-c263a26","model_id":"C263A26","name":"C263A26 Index Out of Range","summary":"Logging the missing index mark position failed because the index is outside the valid range. The code includes an unsigned value.","study_notes":[],"safety_notes":[],"sources":[{"url":"https://www.universal-robots.com/manuals/EN/HTML/SW5_26/Content/prod-err-codes/topics/CODE_263.html","title":"C263 Motor Encoder","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":4,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"alarm","spec":{"code":"C263A26","controllers":["universal-robots-e-series-control-box"],"meaning":"The missing index mark position could not be logged because the index is out of range.","remedy":"Perform a complete reboot sequence, update the software, or contact your local Universal Robots service provider for assistance."},"url":"https://machineschema.com/alarm/ur-c263a26","license":"https://creativecommons.org/licenses/by/4.0/"}