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Servo Motor Repair

FANUC Servo Motor Repair

Servo motors are a key cog of your CNC machine. When your servo is malfunctioning, you need timely FANUC repairs to eliminate downtime and get your CNC machine back to producing.

How Servo Motors Work

The servo motor determines the movement of the CNC machine. It’s controlled with an electric signal, a pulse width modulation (PWM), which is regulated by the servo drive. The drive regulates the voltage between the motor and the control board. The motor itself is the mechanism that performs the work.

Read more about how servo drives work, and how they communicate with the servo motor.


Free phone support for faulty FANUC Servo motors.

If you are experiencing any issues with your precision CNC machining and suspect an issue with electronic components, contact Tri Star today.

We provide free phone support to help you determine if your servo motor is malfunctioning and needs repair. Our technicians have experience replacing or refurbishing all types of FANUC parts.

Contact us for swift repairs of FANUC servo motors.

Working Parts of a Servo Motor

The basic servo motor is made up of a control circuit and an AC or DC motor. The control activates the motor and a sensor tracks performance through a feedback signal.

Because servo motors, and the components dependent on servo motors, must work flawlessly to create precision CNC components and parts, a faulty or broken servo can cause major problems. Even small issues can lead to expensive downtime. Tri Star has replacement parts for FANUC machines.

Signs a Servo Motor Needs Repairs

If your CNC machine moves erratically, frequently jitters, glitches, does not move precisely, or fails to properly move in both directions, the servo motor is likely failing. A faulty servo motor puts your operations at a standstill, and you can’t afford the expense of extended downtime.

It may be difficult to determine whether your servo drive or servo motor is malfunctioning. You can be sure FANUC repair professionals at Tri Star understand the difference. We offer free technical support over the phone should you have any questions. If it can’t be fixed over the phone, we have a nationwide field service network to repair your servo drive.

Contact Tri Star CNC Services, LLC to ensure...


FANUC Servo System Alarm Codes

A voltage drop, sudden increase in temperature or current will throw an error code on your CNC machine controls and bring your production for a halt. You might wrestle with manuals and tear your hair out troubleshooting.   

Or you can just call us.

Tri Star CNC Services diagnoses the source of the problem with your servo unit and delivers swift, reliable repairs. We’ve got a huge stock of critical FANUC CNC components on hand to get your machinery back up and running ASAP. No more digging through old manuals to find a code. We know the code’s meaning and how to troubleshoot and repair.

FANUC Parts Experts Perform Swift Servo Repairs

With over 70 years of collective experience repairing servo drives and any associated CNC components, there is no CNC service shop more readily equipped to diagnose and repair your component level FANUC parts.

Tri Star CNC is your source for all repairs of CNC components, including spindle amplifiers, servo drives, I/O boards, power supplies, and much more.

We service locations across the United States:

Our field service network provides on-site repairs in the above states.

Contact Tri Star CNC Services for quick and affordable repairs today.
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