SERVO_AMPLIFIER_SYNCHRONOUS_DEVIATION
Servo Amplifier Synchronous Deviation
Fanuc · Alpha i series AC Servo Motor
What does SERVO_AMPLIFIER_SYNCHRONOUS_DEVIATION mean?
An alarm indicating a synchronous deviation for the servo amplifier module. This typically points to a problem with motor synchronization or control loop stability, leading to inaccurate motion.
Common Causes
- Servo control loop instability or synchronization error within the servo amplifier
Repair Steps & Checklist
Click steps to track your progress.
- 1
Turn the power off, then back on
- 2
If this alarm recurs, replace the servo amplifier module
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Alpha i series AC Servo Motor