Fanuc alarm: 421 - EXCESS ER(D)

CNC Machine Control Manufacturer
Fanuc
Control Model
, , 0i
421 - EXCESS ER(D)

Alarm Description

While the dual position feedback function is being applied, an excessive
difference was detected between a semi-closed loop error and closed
loop error. Check the dual position conversion factor set in parameter
Nos. 2078 and 2079.

Additional Suggestions & Alarm Clarification

None currently

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