Servo Drive Repair Services – Motion Control & Servo Amplifier Repair

When a servo drive stops responding, it doesn’t just interrupt a machine it interrupts an entire workflow. Motor movement becomes unpredictable, positioning accuracy is lost, and every minute of downtime puts pressure on delivery schedules.

At Epoch Technical, as an ISO 9001:2015 certified company, we repair servo drives and servo amplifiers for industrial automation equipment. Instead of pushing you toward an unnecessary replacement, we focus on bringing your existing drive back to reliable performance. In many cases, customers send drives they assume are beyond repair, and we restore them to stable operation.

Repairing your existing unit is faster, more economical, and avoids reprogramming or compatibility issues.

A Practical Approach to Servo Drive Repair

Servo drives demand accuracy. When a fault occurs, replacing parts blindly can cause more problems. Our approach is simple: understand the failure first, then repair it at the component level.

During diagnostics, we check areas such as:

• Power stage (IGBT/MOSFET failure, blown gate driver circuits)
• Encoder or resolver feedback signal path
• Internal power rails and SMPS regulation
• Signal processing, control logic, and communication interfaces
• Configuration or firmware-related issues

You get the same drive back repaired, tested, and ready to reinstall with your parameters intact.

What We Repair

We service the full range of motion-control hardware:

• Servo drives and servo amplifiers
• Drives integrated with CNC, PLC, or robotic systems
• Feedback modules (encoder/resolver interfaces)
• Servo systems using communication protocols including:

  EtherCAT

  Profinet

  CANopen

  Modbus TCP / RTU

  Modbus TCP / RTU

  Ethernet/IP

Whether your system runs a single axis or synchronizes multiple axes, we ensure stable, accurate motion once the unit is reinstalled.

Issues We Commonly Resolve

Most servo drive failures begin with symptoms like:

• Drive powers on but motor wont enable
• Random shutdowns during movement
• Position errors or excessive vibration
• Encoder feedback alarms or detection errors
• Overvoltage / overcurrent / overtemperature faults

Share the model number and fault code, and we will guide you on the next steps, often before the unit is shipped to us.

Our Repair Method

Evaluation and Diagnosis

We investigate the failure, trace the affected circuit, and pinpoint the defective part.

Quotation & Approval

You receive clear pricing and explanation nothing moves forward without your approval.

Component-level Repair

We repair what is damaged, not entire modules, helping you avoid unnecessary expenses.

Testing with Load

The drive is tested on a motor to ensure accurate positioning, torque response, and stable operation under actual running conditions.

Ready to Return

Once fully verified, the unit is returned ready for installation.

Why Companies Choose Us

• Repairs completed in-house
• Transparent updates and realistic timelines
• Fast turnaround to reduce downtime
• Strong foundation in automation, PLC, CNC, and servo motion systems
• Repair-first mindset replacement is considered only when repair is not feasible

We don’t replace parts for convenience we restore the unit correctly.

Brands We Repair

We handle a broad range of servo brands including:

Siemens, Yaskawa, Mitsubishi, Fanuc, ABB, Panasonic, Omron, Schneider Electric, Delta, Allen-Bradley (Rockwell Automation)

Even if your model is older or discontinued, send us the model number we likely repair it.

A Service Experience Built on Trust

When a servo system stops working, you need a partner who understands urgency. At Epoch Technical, we keep communication clear, pricing straightforward, and repairs focused on long-term reliability not temporary fixes.

If your servo drive is generating errors, losing feedback, or causing unexpected stops, were ready to assist. Tell us what’s happening, and we’ll guide you from there.