Fanuc · R-30iB Mate + Mate Plus Robot
The motor connected to the line tracking encoder has overheated. This alarm persists even after the Pulsecoder has cooled sufficiently and power is reapplied, indicating a persistent overheating condition or sensor issue.
Click steps to track your progress.
Measure motor winding resistance. Compare values to P1-54 specifications.
Check motor encoder signal integrity at terminal E1-E4.
Verify cooling fan operation for the line tracking motor assembly.
Inspect motor mounting for proper heat dissipation.
Monitor motor temperature via parameter P1-78 during operation.