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Servo drives must communicate reliably with a PLC or other motion controller to receive commands and transmit status information. Communication errors can disrupt your entire automation system. ROC Industrial provides expert repair services for servo drives experiencing communication problems, supporting a wide range of industrial communication protocols.
Common Causes of Motor Feedback Problems
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Wiring Problems: Loose connections, damaged cables, incorrect wiring, or wiring interference.
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Network Configuration Issues: Incorrect IP addresses, subnet masks, gateway settings, or other network configuration errors (for Ethernet-based protocols).
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Protocol Mismatches: The drive and controller are not using the same communication protocol or settings.
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Driver Problems: Missing, outdated, or corrupted communication drivers on the controller.
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Hardware Failures: Faulty communication ports on the drive or controller.
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Software/Firmware Bugs: Glitches in the drive's or controller's communication software.
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Interference: Electrical noise or electromagnetic interference (EMI) disrupting communication.
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Network Issues: Problems with network switches, routers, or other network infrastructure.
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Address Setting: Incorrect Address setting
Servo Drive Brands We Repair (Communication Issues)
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Allen-Bradley (Rockwell Automation): Kinetix series (Kinetix 5500, Kinetix 5700, Kinetix 6000, Kinetix 6500, Kinetix 300, Kinetix 350), Ultra 3000, and older Allen-Bradley servo drives.
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Fanuc: Fanuc Alpha i Series, Fanuc Beta i Series, and older Fanuc servo amplifiers.
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Siemens: SINAMICS series (S120, S210, V90), SIMODRIVE, and older Siemens servo drives.
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Yaskawa: Sigma series (Sigma-7, Sigma-5, Sigma-II), Junma, and older Yaskawa servo drives.
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Mitsubishi Electric: MR-J series (MR-J4, MR-J3, MR-J2S), MR-JE.
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Schneider Electric: Lexium series.
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ABB: ACS series (ACS880, ACS800, ACS580 drives with servo control capabilities), MicroFlex.
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Omron: Accurax G5, SmartStep.
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Parker: Compax3, Aries.
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Kollmorgen: AKD Series, S700 Series, S300 Series, S200 Series.
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Beckhoff: AX5000 series, AX8000.
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B&R Industrial Automation: ACOPOS series.
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Lenze: 9400 series, 9300 series, i700 series.
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Indramat (now Bosch Rexroth): EcoDrive, IndraDrive.
Communication Protocols We Support
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Ethernet/IP
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PROFINET
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PROFIBUS
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Modbus TCP
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Modbus RTU (Serial)
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CANopen
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EtherCAT
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DeviceNet
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ControlNet
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SERCOS
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CC-Link
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Other Serial Protocols (RS-232, RS-422, RS-485)
Servo Drive Brands We Repair (Communication Issues)
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Free Evaluation & Quote: Describe the problem, your drive model, and the communication protocol.
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Shipping: Ship the drive to our facility.
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Diagnosis: We use network analyzers, protocol analyzers, and manufacturer-specific software to isolate the communication problem.
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Repair/Replacement: We repair or replace faulty communication modules, cables, connectors, or other components. We also address software/configuration issues.
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Testing: We thoroughly test the repaired drive's communication capabilities with a compatible controller.
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Fast Turnaround: Minimize downtime.
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Warranty: We offer a warranty on all repairs.