Servo Drive & Servo Motor Repair for Industrial Robots
Signs of Servo Drive or Servo Motor Failure
Servo drives and servo motors are where robot performance lives — they close the loop between the controller’s commands and the arm’s actual motion. When they degrade, you see it fast: position errors and drift, repeat servo alarms and overcurrent faults, encoder feedback errors, unusual vibration or noise from an axis, drives running hot, or a robot that faults the moment it comes under load.
Any one of these symptoms can stop a cell. Left alone, a failing drive can also take out the components around it — motors, cables, and power units — turning a component repair into a much larger bill. Catching servo problems early is the difference between a scheduled fix and an unplanned line-down event.
Servo Drive Repair, Rebuild & Replacement
Our technicians diagnose servo problems to the component level: power stages and IGBTs, bus capacitors, feedback and encoder circuits, connectors, and firmware or parameter issues. Where a rebuild makes sense we rebuild; where replacement is smarter we say so, and help you source and commission the right unit.
We service servo systems across the major robot platforms, including FANUC, Yaskawa Motoman, ABB, KUKA and Mitsubishi.
Load Testing Servo Drives & Motors After Repair
A servo repair is not finished when the boards are reworked — it is finished when the drive performs under load. Repaired units are bench-tested against realistic load profiles, encoder alignment and commutation are verified, and thermal behavior is checked over sustained operation.
Back on the robot, we confirm the axis tracks correctly through its range of motion, verify mastering and calibration, and watch the system under production-like cycles before we call the job done. You get a robot that runs, not a box of parts that “should” work.
Preventing Servo Failures with Scheduled Maintenance
Most servo failures announce themselves long before they stop a line — in temperature trends, rising position error, and intermittent alarms. Scheduled checks catch them while the fix is still small: connector and cable condition, encoder health, drive cooling, battery and backup status, and parameter backups you can actually restore from.
Our preventative maintenance plans and scheduled robotics inspections build these checks into a routine, so servo work happens on your calendar instead of your production schedule.
Related robot repair services
Also from our repair team: robot power supply repair, teach pendant repair, controller repair & diagnostics, component-level repairs and 24/7 emergency robot repair. Browse all industrial robot repair services.
Benefits of Prompt Servo Repair
Acting on servo symptoms early protects more than the drive itself. Prompt repair prevents cascade damage to motors and power units, avoids the extended downtime of a full axis failure, and extends the working life of the robot. It also keeps quality steady — a degrading servo shows up in part quality before it shows up as a fault code.
If an axis is already down, our emergency robotics repair team can triage by phone and get a technician moving.
Why Choose Us for Servo Drive & Motor Repair
Servo work rewards experience. Our team works across brands and robot types every week, with the diagnostic and load-test equipment to prove a repair before it ships back. We document what failed and why, so you can address the root cause — not just the symptom — and we communicate in plain terms: what it costs, what it needs, and when you get it back.
Get Your Servo Issues Diagnosed Fast
Don’t let a failing drive dictate your production schedule. Call 1-602-449-1556 or send us the symptoms and alarm codes you’re seeing — we’ll tell you quickly whether you’re looking at a repair, a rebuild, or a replacement, and what it takes to get the axis back in service.
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