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If Z axis is vertical (common in mills, machining centers): fanuc 414 servo alarm z axis detect error repack
Damaged, frayed, or poorly connected feedback cables (encoder cables) between the motor and drive. This public link is valid for 7 days
If the amplifier is faulty, send it to a reputable FANUC repair center. Can’t copy the link right now
: The most common cause is a "high current alarm" (codes 8, 9, or A on the amplifier display), signifying excessive current flowing through the power module. Detection Error
Abnormal current alarm (often a short circuit or faulty amplifier).
Do not swap parts blindly. Fanuc controls record internal error bits that pinpoint the exact sub-circuit causing the 414 alarm. Press the key on your Fanuc MDI panel. Select the DIAGN (Diagnostic) softkey. Type 200 and press INPUT (or check number 204 ). Diagnostic 200 Bit Mapping