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EXPERT FANUC SERVO DRIVE REPAIR SERVICES

Is a faulty Fanuc servo drive causing downtime on your CNC machine or other Fanuc-controlled equipment? ROC Industrial specializes in the repair of Fanuc servo drives, including the Alpha i and Beta i series, and older models. We offer a fast, reliable, and cost-effective alternative to replacement, minimizing your production losses and getting your equipment back to optimal performance. Our technicians are experienced in diagnosing and repairing a wide range of Fanuc servo drive issues.

About Fanuc Servo Drives

 

Fanuc is a global leader in factory automation, and their servo drives are renowned for their precision, reliability, and performance in demanding applications, particularly in CNC machining. Fanuc servo drives, including the Alpha i and Beta i series, are integral components of Fanuc CNC systems, providing the power and control for precise motion control.

Fanuc Servo Drive Models We Repair

  • Alpha i Series:

    • (e.g., A06B-6114-Hxxx, A06B-6124-Hxxx, etc. )

  • Beta i Series:

    • (e.g., A06B-6130-Hxxx, A06B-6132-Hxxx, etc.)

  • Older Fanuc Servo Drives

  • AiSV

  • BiSV

  • Fanuc Servo Amplifiers

Common Fanuc Servo Drive Problems We Solve

  • Power Supply Issues: Drive won't power on, intermittent power.

  • Motor Feedback Errors: Encoder, resolver, or other feedback device problems.

  • Communication Errors: Problems communicating with the CNC controller (FSSB, etc.).

  • Overcurrent/Overvoltage Faults: Drive tripping on protection circuits.

  • Overtemperature Faults: Drive overheating.

  • Parameter Errors: Incorrect configuration or corrupted parameters.

  • Component Failures: Failure of IGBTs, capacitors, or other internal components.

  • Software/Firmware Issues: Need for updates.

  • Blown Fuses

Common Fanuc Servo Drive Alarm Codes We Fix

Our technicians are experienced in diagnosing and resolving a wide range of Fanuc servo drive alarm codes, including (but not limited to) the following:

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  • Alarm 401 (VRDY OFF): Indicates a servo amplifier ready signal issue. This can be caused by a variety of problems, including faulty wiring, a malfunctioning servo amplifier, or an issue with the CNC control.

  • Alarm 414 (DETECT ABNORMAL SERVO): Indicates a problem within the servo system such as a faulty motor.

  • Alarm 438 (INVERTER: ABNORMAL CURRENT): Often points to a problem with the motor or a short circuit in the motor power cables, or an issue within the drive.

  • Alarm 4n9 (SERIAL DATA ERROR): Indicates the data from serial encoder is abnormal.

  • Alarm 90 (REFERENCE RETURN INCOMPLETE): Indicates a home is not set up for the machine

  • Alarm 91 (REFERENCE RETURN INCOMPLETE): Indicates a home is not set up for the machine

  • Alarms 3xx (300, 310, 360, 368, etc.): Related to APC (Absolute Pulse Coder) communication errors, battery low, or encoder issues. We can diagnose and resolve these feedback-related problems. (Note how this covers a range of related alarms.)

  • Alarms 5xx (500, 501, etc.): Often related to overtravel or limit switch issues.

  • Alarms 7xx: Alarms in this rang have to deal with an internal over heat.

 

Don't see your specific alarm code? Don't worry! We can still diagnose and repair your Fanuc servo drive. Contact us with the alarm code and drive model for a free evaluation.

Our Fanuc Servo Drive Repair Process

  • Free Evaluation & Quote: Describe the problem, including any alarm codes, and your Fanuc servo drive model. We provide a free, no-obligation quote.

  • Shipping: Ship the drive to our facility.

  • Diagnosis & Repair: Our technicians use specialized diagnostic equipment, including Fanuc software and hardware (Fanuc CNC simulators, etc.), to pinpoint the fault and perform expert repairs.

  • Testing & Quality Assurance: We thoroughly test the repaired drive under load, often using a Fanuc CNC simulator or a dedicated servo motor test stand, to ensure it meets original performance specifications.

  • Fast Turnaround: Minimize downtime.

  • Warranty: We offer a comprehensive warranty on all Fanuc servo drive repairs.

Why Choose ROC Industrial for Fanuc Servo Drive Repair?

  • Expert Technicians: Our team has extensive experience specifically with Fanuc servo drives and CNC control systems.

  • Fanuc-Specific Diagnostic Tools: We utilize specialized software and hardware for accurate diagnosis.

  • Genuine or Equivalent Parts: We use high-quality replacement parts.

  • Fast Turnaround Times: Minimize downtime.

  • Cost-Effective Solutions: Repair is often much cheaper than replacement.

  • Comprehensive Warranty: We stand behind our work.

Get Your Fanuc Servo Drive Repaired Today!

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Don't let a faulty Fanuc servo drive shut down your production. Contact ROC Industrial for a free quote and expert repair services.

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