Troubleshooting steps
Check servo amplifier status verify encoder connections test motor check wiring
FANUC
417 – Digital servo alarm
Serial encoder communication alarm
Details
Serial encoder communication alarm. Check servo amplifier status and encoder connections.
Error typealarm
MeaningDigital servo alarm
Typical causesServo amplifier fault encoder fault motor fault wiring fault
SolutionsCheck servo amplifier status verify encoder connections test motor check wiring
Severityhigh
Catalog references
System Information
FANUC417
Utilities
Troubleshooting Steps
Related
Related FANUC Alarms
FAQ
Common questions
Which axis is affected?
Check alarm message for axis number and servo diagnostic screen