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Is a malfunctioning Emerson or Control Techniques servo drive causing downtime or performance issues in your machine or automation system? ROC Industrial specializes in the repair of Emerson servo drives, including the Unidrive M, Unidrive SP, Digitax ST, and other models. We offer a fast, reliable, and cost-effective alternative to replacement, minimizing disruptions and getting your equipment back to optimal operation. Our technicians are skilled in diagnosing and repairing a wide range of Emerson servo drive problems.
About Emerson Servo Drives
Emerson Electric is a global technology and engineering company, and their industrial automation division (which includes the Control Techniques brand) offers a range of servo drives for various applications. Emerson/Control Techniques servo drives are known for their performance, flexibility, and advanced control features.
Emerson/Control Techniques Servo Drive Models We Repair
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Emerson Unidrive M Series:
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Unidrive M700, M701, M702
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Unidrive M600
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Unidrive M400, M300, M200, M100
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Emerson Digitax Series:
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Digitax HD
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Digitax ST
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Legacy Control Techniques Drives:
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Unidrive SP
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Commander SK
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Mentor MP​
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Common Emerson Servo Drive Problems We Solve
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Power Supply Issues: Drive won't power on, intermittent power.
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Motor Feedback Errors: Encoder, resolver, or other feedback device problems.
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Communication Errors: Problems communicating with the controller (EtherNet/IP, EtherCAT, Modbus, etc.).
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Overcurrent/Overvoltage Faults: Drive tripping on protection circuits.
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Overtemperature Faults: Drive overheating.
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Parameter Errors: Incorrect configuration or corrupted parameters.
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Component Failures: Failure of IGBTs, capacitors, or other internal components.
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Software/Firmware Issues: Need for updates.
Common Emerson Servo Drive Fault Codes/Indicators We Fix
Our technicians are experienced in diagnosing and resolving a wide range of Emerson/Control Techniques servo drive fault codes and indicator lights, including (but not limited to) the following:
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Fault Codes Displayed on the Drive/Software (e.g., Connect, CTSoft)
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Unidrive M/SP and Digitax ST Fault Codes
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LED Status Indicators
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Don't see your specific fault code or indicator? We can probably still diagnose and repair your Emerson servo drive. Contact us with the fault information and drive model.
Our Emerson Servo Drive Repair Process
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Free Evaluation & Quote: Describe the problem, including fault codes, and your Emerson/CT drive model. We offer a free quote.
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Shipping: Ship the drive to our facility.
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Diagnosis & Repair: Our technicians use specialized diagnostic equipment, including Emerson/CT software (Connect, CTSoft, etc.) and hardware, to pinpoint the fault and perform expert repairs.
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Testing & Quality Assurance: We thoroughly test the repaired drive under load, often with a dedicated servo motor test stand and a compatible controller, to ensure it meets specifications.
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Fast Turnaround: Minimize downtime.
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Warranty: We offer a comprehensive warranty on all repairs.
Why Choose ROC Industrial for Emerson Servo Drive Repair?
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Expert Technicians: Our team has experience with Emerson and Control Techniques servo drives.
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Emerson-Specific Diagnostic Tools: We use specialized software (Connect, CTSoft) and hardware for accurate diagnosis.
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Genuine or Equivalent Parts: We use high-quality replacement parts.
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Fast Turnaround Times: Minimize downtime.
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Cost-Effective Solutions: Repair is often much cheaper than replacement.
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Comprehensive Warranty: We stand behind our work.