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A servo drive that won't power on, or experiences intermittent power failures, can completely shut down your machine or automation system. ROC Industrial provides expert diagnostic and repair services for servo drives experiencing power-related issues. We quickly identify the root cause of the problem and offer cost-effective solutions to get your equipment back up and running.
Common Causes of Servo Drive Power Failures
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Internal Power Supply Failure: The most common cause is a failure within the drive's internal power supply unit (PSU). This can be due to:
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Blown Fuses: A blown fuse is often a symptom of a larger problem, but sometimes it's the only issue.
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Failed Capacitors: Electrolytic capacitors are common failure points in power supplies.
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Failed Rectifiers/Diodes: These components convert AC power to DC power.
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Failed Switching Transistors (IGBTs/MOSFETs): These components control the flow of power to the motor.
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Faulty Control Circuitry: Problems with the circuits that regulate the power supply.
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External Power Supply Issues:
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Incorrect Input Voltage: The drive is receiving the wrong voltage from the mains.
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Voltage Fluctuations/Surges: Power surges or dips can damage the drive.
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Loose Wiring/Connections: Loose wires or connectors can interrupt power.
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Other Internal Component Failures: Even if the power supply seems okay, other failed components (e.g., shorted motor windings, damaged control boards) can prevent the drive from powering up properly.
Servo Drive Brands We Repair (Power Failures)
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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.
Our Servo Drive Power Failure Repair Process
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Free Evaluation & Quote: Describe the problem and your servo drive model.
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Shipping: Ship the drive to our facility.
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Diagnosis: We use advanced diagnostic equipment to test the power supply, input/output circuits, and other components.
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Repair/Replacement: We repair or replace faulty components, including fuses, capacitors, rectifiers, transistors, and control boards.
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Testing: We thoroughly test the repaired drive under load.
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Fast Turnaround: Minimize downtime.
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Warranty: We offer a warranty on all repairs.
Why Choose ROC Industrial for Servo Drive Power Failure Repair?
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Expert Technicians: Experience with power electronics.
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Advanced Diagnostics: Pinpoint the exact cause of the failure.
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Cost-Effective: Repair is often cheaper than replacement.
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Fast Turnaround: Minimize downtime.
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Warranty: Peace of mind.