E0
Sensor (serial) one-rotation signal pulse count out of range
Fanuc · Series 30i/31i/32i-MODEL B Plus
What does E0 mean?
The number of pulses detected between one-rotation signals from the serial sensor falls outside the specified acceptable range. This alarm specifically points to an abnormality in the sensor's detection circuit, indicating a malfunction in its ability to accurately measure rotational position.
Common Causes
- Detection circuit of the sensor (serial) is abnormal
Repair Steps
- 1
Replace the detection circuit component within the sensor (serial).
Verified technical data. Last updated: March 2026
Source: Fanuc Series 30i/31i/32i-MODEL B Plus