Fanuc alarm: 381 - n AXIS : ABNORMAL PHASE (EXT LIN)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
381 - n AXIS : ABNORMAL PHASE (EXT LIN)

Alarm Description

A phase data error occurred in the separate linear scale.

Additional Suggestions & Alarm Clarification

EXT= External feedback coder used possibly a scale or separate encoder. If a scale-dirt or contamination may be present on sensor or glass. Cleaning can sometimes fix the problem.

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