CONTROL_CIRCUIT_ERROR
Control Circuit Error
Fanuc · Alpha i series AC Servo Motor
What does CONTROL_CIRCUIT_ERROR mean?
An error was detected in the control circuit. This is a general indication of a hardware or internal logic fault within the servo amplifier, potentially leading to a complete loss of control.
Common Causes
- Internal hardware or logic fault within the servo amplifier control circuit
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