Fanuc · R-30iB Mate + Mate Plus Robot
This alarm (Track enc:i) indicates that the LED in the Pulsecoder (track encoder) is broken. This prevents the track encoder from generating proper position feedback, leading to loss of position control for the track. The cause and fix are identical to SRVO-074 for robot axes.
Click steps to track your progress.
Replace the Pulsecoder for the affected track encoder.
Remaster the robot after Pulsecoder replacement to re-establish absolute position.